4 047023 038838SensorsSensors for angles,rotation rate, speed, pressure,air-mass ow rate,oxygen, temperature,structure-borne soundSensors2009 | 2010The Bosch Program for industrial applicationsHave we succeeded in arousing yourcuriosity? Simply get into contact withus using the Fax form on the inside ofthe cover. You will hear from us promptly.www.bosch.de/aaEditoral closing: 30.09.2008 Subject to change withoutnotice! Please direct questionsand comments to ourAuthorized Representative inyour country. This editionsupersedes all previouseditions.A 1 987 721 021/200812AA/MKV2 12.2008 en 2008 Robert Bosch GmbHAutomotive AftermarketPostfach 41 09 6076225 Karlsruhe Token fee: 5,00Part number: 1 987 721 076Part number: 1 987 721 029 en Part number: 1 987 721 074 Part number: 1 987 721 540 Part number: 1 987 721 555Part number: 1 987 721 0212009 | 2010 Sensors the vehicles Sensory SystemOur philosophyVehicle electronics are constantly gaining in signicance. Here, sensors are the vehicles sensory system for travel, angle, speed, velocity, acceleration, vibration, pressure, ow rate, gas con-centration, temperature and other inuencing variables. Their signals have, in the meantime, become indispensable for many con-trol and regulating functions of the various management systems for engine and vehicle control, safety and comfort. Electronic data processing has ultimately made it possible to evaluate the stated inuencing variables faster, and to condition them for the required vehicle functions.These sensors, which have demonstrated their value in millionsof vehicles covering numerous kilometers under rough vehicle service conditions, also harbor a tremendous potential for industrial applications. Particularly in those areas dependent on high reliab-ility, and where low prices can be achieved through high-volume production.The areas in which they can be used are almost limitless: wherever tests, closed and open-loop controls, and monitoring are required; wherever computers have to be fed with physical data, or even simply wherever automatic switch-on of the heating is required in the cold or of the air conditioner when temperatures climb.Constant further development and renement of the sensors by Bosch, including their miniaturization, means that Bosch iswell equipped for tomorrows challenges and is able to actively parti cipate in shaping state-of-the-art technology.Our philosophyWith the quality, value for money and function of our products, we wish to set standards and capture a peak position in the market. By working towards economical solutions, we reinforce our innovative strength and thus our future. For our customers, we are an active, receptive partner who is aware of their goals and gives completesatisfaction. We react rapidly and exibly to the requirementsof our customers and colleagues. We accomplish our agreed tasks creatively, with the emphasis on quality and on the protectionof the environment.Our staffWe prefer target-oriented team-work, and treat problems as an opportunity for continual improvement. All management personnel delegate responsibility and support their workers by stipulating clear targets and by the appropriate control of resources. They set an example in putting our philosophy into practice.Our organizationBosch is never far from its clients. We are close to vehicle manu-facturers, working in close cooperation with them in the devel-opment of new solutions. But we are also close to the users of sensors, who can enjoy competent service all over the world from nearly 10,000 Bosch Service Agents. Bosch has agents in 130 coun-tries. In our international alliance, we develop and produce sensors in Europe, the USA and Asia.Our technologyFrom drafting through design to production, we use the latest techniques and facilities, such as Fhleeenehl cacualohs, Fuy aulonaled producloh hes,Qualy assurahce by conpuleraded, slalslca cosedoopprocess control and 100 % testing of all parameters which arerelevant for correct function.Our contribution to environmental protectionOur sensors are made from materials which can be recycled, which, thanks to thermal and magnetic separation processes, can be reintroduced into the material cycle. We use re-cyclable cardboard packaging containing a high proportion of recycled paper, or, on request, reusable packaging.2009 | 2010 Bosch Automotive AftermarketWe reserve the right to make technical changes.Angular-position sensors 8 Steering-angle sensor 10 Angle sensorYaw sensors 16 Yaw sensor (Gyrometer) 20 Yaw sensor with CAN interfaceAcceleration sensors52 Piezoelectric acceleration sensor 54 Surface micromechanical acceleration sensor 60 Piezoelectric vibration sensor 68 Signal evaluation for vibration sensors Pressure sensors 72 Differential pressure sensor 84 Absolute pressure sensor 142 Absolute-pressure sensor in atmosphere 146 High-pressure sensor NTC temperature sensors: -40 to 150C 166 Measurement of air temperatures 170 Measurement of liquid temperaturesAir-mass meters 178 Hot-lm air mass meter, type HFM 5 186 Hot-lm air mass meter, type HFM 6Lambda sensors 190 Type LSU 4.9194

Type LSU 4.X198

Type LSU 1Rotational-speed sensors 26 Inductive speed sensor 32 Passive speed sensor 38 Hall speed sensor 48 Active speed sensorContent 3 Techniques and applications 6 CAN-BusBosch Automotive Aftermarket 2009 | 20101 987 720 0142 | SensorsEasy and quick access to vehicle application data from Bosch in 18 languages.Electronic Catalogue for Automotive Parts2009 | 2010 Bosch Automotive AftermarketSensors | 3Techniques and applicationsThis catalog features the most important technical data required for selecting a given sensor. To date, the sensors listed have all been used in automotive applications, but their universal and highly versatile characte-ristics also make them ideally suitable for industrial applications. For instance in:

Manufacturing engineering

Mechanical engineering

Automation

Materials handling and conveying

Heating and air-conditioning

Chemical and process engineering

Environmental and conservation technology

Installation and plant engineeringBrief descriptions and examples of application are to be found in the Table below.For the applications listed below, prior clarication of the technical suitability is imperative. This Catalog only lists those products which are available from series manufacture. If your problem cannot be solved with this range of products, please inform of us of your requirements using the Enquiry Data Sheet.SensorsAutomotive applicationExamples of non-automotive applicationsAngular position sensors measure simple angular settings and changes in angle.Throttle-valve-angle measurement for engine management on gasoline (SI) engines.Door/window opening angle, setting-lever angles in monitoring and control installations. Rotational-speed sensors measure rotational speeds, positions and angles in excess of 360.Wheel-speed measurement for ABS/TCS, engine speeds, positioning angle for engine management, measurement of steering-wheel angle, distance covered, and curves/bends for vehicle navigation systems.Proximity or non-contact measurement of rotational speed, displacement and angular measurement, denition of end and limit settings for industrial machines, robots, and installations of all types.Spring-mass acceleration sensors measure changes in speed, such as are common in road trafc. Registration of vehicular acceleration and deceleration. Used for the Antilock Braking System (ABS) and the Traction Control System (TCS). Acceleration and deceleration measurement for safety, control, protective systems in lifts, cable railways, fork-lift trucks, conveyor belts, machines, wind power stations.Bending-beam acceleration sensors register shocks and vibration which are caused by impacts on rough/unpaved road surfaces or contact with kerbstones.For engine management, detection of vibration on rough/unpaved road surfaces.Forced switch-off for machines, industrial robots, manufacturing plant, and gaming machines in case of sudden acceleration or deceleration caused by shock or impact.Piezoelectric acceleration sensors mea sure shocks and vibration which occur when vehicles and bodies impact against an obstacle.Impact detection used for triggering airbags and belt tighteners.Detection of impact in monitoring/surveillance installations, detection of foreign bodies in combine harvesters, lling machines, and sorting plants. Registration of score during rieman competitions.Yaw sensors measure skidding movements, such as occur in vehicles under road trafc conditions. Used on the vehicle dynamics control (Electronic Stability Program, ESP) for measuring yaw rate and lateral acceleration, and for vehicle navigation sensors.Stabilization of model vehicles and airplanes, safety circuits in carousels and other entertainment devices on fairgrounds etc.Piezoelectric vibration sensors measure structure-borne vibrations which occur at engines, machines, and pivot bearings.Engine-knock detection for anti-knock control in engine-management systems. Machine-tool safety, cavitation detection, pivot-

bearing monitoring, structure-borne-noise detection in measurement systems.Absolute-pressure sensors measure the pressure ranges from about 50 % to 500 % of the earths atmospheric pressure. Manifold vacuum measurement for engine manage - ment. Charge-air-pressure measurement for charge-air pressure control, altitude-pressure-dependent fuel injection for diesel engines. Pressure control in electronic vacuum cleaners, monitoring of pneumatic production lines, meters for air-pressure, altitude, blood pressure, manometers, storm-warning devices.Differential-pressure sensors measure differential gas pressures, e.g. for pressure- compensation purposes.Pressure measurement in the fuel tank, evaporative-emissions control systems.Monitoring of over and underpressure. Pressure limiters, lled-level measurement.Temperature sensors measure the tempe rature of gaseous materials and, inside a suitable housing, the temperatures of liquids in the temparature range of the earths atmosphere and of water.Display of outside and inside temperature, control of air conditioners and inside temperature, control of radiators and thermostats, measurement of lube-oil, coolant, and engine temperatures. Thermometers, thermostats, thermal pro tection, frost detectors, air-conditioner control, temperature and central heating, refrigerant-temperature monitoring, regulation of hot- water and heat pumps.Lambda oxygen sensors determine the residual oxygen content in the exhaust gas.Control of A/F mixture for minimization of pollutant emissions on gasoline and gas engines.Pollutants reduction during combustion, smoke measurement, gas analysis.Air-mass meters measure the ow rate of gases.Measurement of the mass of the air drawn in by the engine.Flow-rate measurement for gases on test benches and in combustion plant.Bosch Automotive Aftermarket 2009 | 20104 | SensorsIP degres of protectionValid for the electrical equipment of road vehicles as per DIN 40 050 (Part 9).

Protection of the electrical equipment inside the enclosure against the effects of solid foreign objects including dust.

Protection of the electrical equipment inside the enclosure against the ingress of water.

Protection of persons against contact with dangerous parts, and rotating parts, inside the enclosure.If a characteristic numeral is not given, it must be superseded by the letter X (i. e. XX if both characteristic numerals are not given).The supplementary and/or additional letters can be omitted at will, and need not be superseded by other letters.1) The supplementary letter K is located either directly after the rst characteristic numerals 5 and 6, or directly after the second characteristic numerals 4, 6 and 9.2) During the water test. Example: IP16KB protection against the ingress of solid foreign bodies with diameter 50 mm, protection against high-pressure hose water, protection against access with a nger.Structure of the IP code IP 2 n1) 3 n2) C MCode lettersFirst characteristic numeral0...6 or letter XSecond characteristic numeral0...9 or letter XAdditional letter (optional)A, B, C, DSupplementary letter (optional)M, SK1)2009 | 2010 Bosch Automotive AftermarketSensors | 51st charac-teristic numeral and sup-plementary letter KProtection of electrical equip-ment against ingress of solid foreign objectsPersons2nd charac-teristic numeral and sup-plementary letter KProtection of elec-trical equipment against the ingress of waterAdditional letter (optional)Protection of persons against contact with hazardous partsAdditional letter (optional)0Non-protectedNon-protected0Non-protectedAProtection against contact with back of handMMovable parts of the equipment are in motion 2)1Protection against foreign bodies 50 mmProtection against contact with back of hand1Protection against vertically dripping waterBProtection against contact with ngerSMovable parts of the equipment are stationary 2)2Protection against foreign bodies 12.5 mmProtection against contact with nger2Protection against dripping water (at an angle of 15) CProtection against contact with toolKFor the electrical equipment of road vehicles3Protection against foreign bodies 2.5 mm Protection against contact with tool3Protection against splash waterDProtection against contact with wire4Protection against foreign bodies 1.0 mm Protection against contact with wire4Protection against spray water5KDust-protectedProtection against contact with wire4KProtection against high- pressure spray water 6KDust-proof Protection against contact with wire5Protection against jets of water 6Protection against powerful jets of water 6KProtection against high-pressure jets of water 7Protection against temporary immer-sion 9Protection against continuous immer-sion 9KProtection against high-pressure/steam-jet cleaners Comments IP codeBosch Automotive Aftermarket 2009 | 20106 | SensorsCAN-Bus Controller Area NetworkPresent-day motor vehicles are equi p ped with a large number of electronic control units (ECUs) which have to exchange large volumes of data with one another in order to perform their various functions. The con-ventional method of doing so by using dedi-cated data lines for each link is now reaching the limits of its capabilities. On the one hand, it makes the wiring harnesses so com-plex that they become unmanageable, and on the other the nite number of pins on the connectors becomes the limiting factor for ECU development. The solution is to be found in the use of specialized, vehicle-com-patible serial bus systems among which the CAN has established itself as the standard.ApplicationsThere are four areas of application for CAN in the motor vehicle, each with its own individual requirements:Real-time applicationsReal-time applications, in which electrical sy stems such as Motronic, transmission-shift control, electronic stability-control systems are networked with one another, are used to control vehicle dynamics. Typical data transmission rates range from 125 kbit/s to 1 Mbit/s (high-speed CAN) in order to be able to guarantee the real-time characteristics demanded.Multiplex applicationsMultiplex applications are suitable for situations requiring control and regulation of body-compo-nent and luxury/convenience systems such as air conditioning, central locking and seat adjust-ment. Typical data transmission rates are be-tween 10 kbits and 125 kbit/s (low-speed CAN).Mobile-communications applicationsMobile-communications applications connect components such as the navigation system, cellular phone or audio system with central displays and controls. The basic aim is to standardize control operations and to condense status information so as to minimize driver dis-traction. Data transmission rates are generally below 125 kbit/s; whereby direct transmission of audio or video data is not possible.Diagnostic applicationsDiagnostic applications for CAN aim to make use of existing networking for the diagnosis of the ECUs incorporated in the network. The use of the K line (ISO 9141), which is currently the normal practice, is then no longer necessary. The data rate envisaged is 500 kbit/s.Bus congurationCAN operates according to the multimaster prin-ciple, in which a linear bus structure connects several ECUs of equal priority rating (Fig. 1). The advantage of this type of structure lies in the fact that a malfunction at one node does not im-pair bus-system access for the remaining devices. Thus the probability of a total system failure is substantially lower than with other logical archi-tectures (such as ring or active star structures). When a ring or active star structure is employed, failure at a single node or at the CPU is sufcient to cause a total failure.Content-based addressingAddressing is message-based when using CAN. This involves assigning a xed identier to each message. The identier classies the content of the message (e.g., engine speed). Each station processes only those messages whose identi-ers are stored in its acceptance list (message ltering, Fig. 2). Thus CAN requires no station addresses for data transmission, and the nodes are not involved in administering system congu-ration. This facilitates adaptation to variations in equipment levels.Logical bus statesThe CAN protocol is based on two logical states: The bits are either recessive (logical 1) or dominant (logical 0). When at least one station transmits a dominant bit, then the recessive bits simultaneously sent from other stations are overwritten.Priority assignmentsThe identier labels both the data content and the priority of the message being sent. Identiers corresponding to low binary numbers enjoy a high priority and vice versa.Bus accessEach station can begin transmitting its most im-portant data as soon as the bus is unoccupied. When several stations start to transmit simul-taneously, the system responds by employing Wired-AND arbitration to sort out the resulting contentions over bus access. The message with the highest priority is assigned rst access, with-out any bit loss or delay. Transmitters respond to failure to gain bus access by automatically switching to receive mode; they then repeat the transmission attempt as soon as the bus is free again.Message formatCAN supports two different data-frame formats, with the sole distinction being in the length of the identier (ID). The standard-format ID is 11 bits, while the extended version consists of 29 bits. Thus the transmission data frame con-tains a maximum of 130 bits in standard format, or 150 bits in the extended format. This ensures miminal waiting time until the subsequent trans-mission (which could be urgent). The data frame consists of seven consecutive bit elds (Fig. 3):Start of frameindicates the beginning of a message and synchronizes all stations.Arbitration eldconsists of the messages identier and an additional control bit. While this eld is being transmitted, the transmitter accompanies the transmission of each bit with a check to ensure that no higher-priority message is being trans-mitted (which would cancel the access autho-rization). The control bit determines whether the message is classied under data frame or remote frame.Control eldenthlt den Code fr die Anzahl der Datenbytes im Data Field.Data eldsinformation content comprises between 0 and 8 bytes. A message of data length 0 can be used to synchronize distributed processes.CRC eld(Cyclic Redundancy Check) contains the check word for detecting possible transmission inter-ference.Ack eldcontains the acknowledgement signals with which all receivers indicate receipt of non- corrupted messages.End of framemarks the end of the message.2009 | 2010 Bosch Automotive AftermarketTransmissionshift controlStation 1Engine managementStation 2ABS/TCS/ESPStation 3Instrument clusterStation 4CANMakereadySendmessageCANStation 1CANStation 2BusCANStation 3CANStation 4AcceptSelectionReceptionAcceptSelectionSelectionReceptionReceptionData FrameMessage FrameStart of FrameArbitration FieldControl FieldData FieldCRC FieldACK FieldEnd ofFrameInterFrameSpace1*1 012*6*16*2*7*3*IDLEIDLE0...64*Sensors | 71 Linear bus structure2 Message ttering3 Message formatTransmitter initiativeThe transmitter will usually initiate a data transfer by sending a data frame. However, the receiver can also request data from the trans-mitter. This involves the receiver sending out a remote frame. The data frame and the corresponding remote frame have the same identier. They are distinguished from one another by means of the bit that follows the identier.Error detectionCAN incorporates a number of monitoring features for detecting errors. These include:

15 Bit CRC (Cyclic Redundancy Check): Each receiver compares the CRC sequence which it receives with the calculated sequence.

Monitoring: Each transmitter compares transmitted and scanned bit.

Bit stufng: Between start of frame and the end of the CRC eld, each data frame or remote frame may contain a maximum of 5 consecutive bits of the same polarity. The transmitter follows up a sequence of 5 bits of the same polarity by inserting a bit of the opposite polarity in the bit stream; the re-ceivers eliminate these bits as the messages arrive.

Frame check: The CAN protocol contains several bit elds with a xed format for veri-cation by all stations.Error handlingWhen a CAN controller detects an error, it aborts the current transmission by sending an error ag. An error ag consists of 6 dominant bits; it functions by deliberately violating the conven-tions governing stufng and/or formats.Fault connement with local failureDefective stations can severely impair the ability to process bus trafc. Therefore, the CAN con-trollers incorporate mechanisms which can distinguish between intermittent and permanent errors and local station failures. This process is based on statistical evaluation of error con-ditions.ImplementationsIn order to provide the proper CPU support for a wide range of different requirements, the semi-conductor manufacturers have introduced imple-mentations representing a broad range of per-formance levels. The various implementations differ neither in the message they produce, nor in their arrangements for responding to errors. The difference lies solely in the type of CPU support required for message administration.As the demands placed on the ECUs processing capacity are extensive, the interface controller should be able to administer a large number of messages and expedite data communications with, as far as possible, no demands on the CPUs computational resources. Powerful CAN controllers are generally used in this type of ap-plication. The demands placed on the controllers by multiplex systems and present-day mobile communications are more modest. For that reason, more basic and less expensive chips are preferred for such uses.StandardizationCANs for data exchange in automotive applica-tions have been standardized both by the ISO and the SAE in ISO 11519-2 for low-speed applications 125 kbit/s and in ISO 11898 and SAE J 22584 (cars) and SAE J 1939 (trucks and busses) for high-speed applications >125 kbit/s. There is also an ISO standard for diagnosis via CAN (ISO 15765 Draft) in the course of pre-paration.Source: Texts and illustra-tions on the subject of CAN-Bus are taken from the Bosch Automotive Hand-book, 7th Edition, 2007.The Automotive Handbook contains a very wide variety of information covering the whole range of modern- day automotive engineering.Further information on sensors in the vehicle can be taken from the Bosch Yellow Jacket publication Automotive Sensors.Bosch Automotive Aftermarket 2009 | 20108 | Angular-position sensorsSteering-angle sensorMeasurement of angles from -780 to +780 True Power on function

Multiturn capability

CAN interface ApplicationThe steering-angle sensor was developed for use in electronic stability programs (ESP). Integrated plausibility checks and special self-diagnosis functions make the steering-wheel angle sensor suitable for use in safety systems.Design and operationThe steering column drives two measurement gears by way of a gear wheel. Magnets are incorporated into the measurement gears. AMR elements, the resistance of which changes as a function of the magnetic field direction, detect the angular position of the magnets. The analog measured values are supplied to the microprocessor via an A/D converter. The measurement gears have different numbers of teeth and their rotational position thus changes at differ-ent rates. The total steering angle can be calculated by combining the two current angles. After several turns of the steering wheel, the two measurement gears have returned to their original positions. This measurement principle can therefore be used to cover a measuring range of several turns of the steering wheel without the need for a revolution counter. The steer-ing angle is output as an absolute value over the total angle range (turning range) of the steering column. A special feature of the sensor is the correct angle output immediately after switching on the ignition without moving the steering wheel (True Power On). Steering angle and velocity are output via CAN.Further areas of applicationUsing the standardized CAN bus, the steering wheel angle information can be utilized, for example for chassis control, navigation and electrical power-steering systems. Different types of mechanical connection and electrical interface versions are available on request.Attachment optionsA Steering-column switch B Steering columnABDesign and operation1 Steering column 2 AMR measurement cells 3 Gear wheel with m teeth 4 Evaluation electronics 5 Magnets 6 Gear wheel with n>m teeth 7 Gear wheel with m+1 teeth1 2 36 754Characteristic curveSteering-wheel angleCounterclockwiseClockwiseOutput signal0700-780-78007002009 | 2010 Bosch Automotive AftermarketPin assignmentPin 1 Ground Pin 2 12 V Pin 3 CAN High Pin 4 CAN Low Pin 5 Pin 6 Pin 7 4512367Block diagramCAN-DriverMicro-processorA/DconverterAMRelementAMRelementCAN-BusAngular-position sensors | 9Steering-angle sensorMeasurement of angles from -780 to +780Technical dataMeasuring range, angle - 780 ...+ 780 Measuring range, steering-angle velocity 0 ... 1016 /sSensitivity and resolution over measuring range, angle 0,1 Sensitivity and resolution over measuring range, steering-angle velocity 4 /sNon-linearity over measuring range - 2,5 ...+ 2,5 Hysteresis over measuring range 0 ... 5 Steering-wheel angle velocity, maximum + 2000 /sSteering-wheel angle velocity, displayed 0 ... 1016 /sOperating temperature - 40 ...+ 85 CStorage temperature - 40 ...+ 50 CSupply voltage 12 V nominalSupply-voltage range 8 ... 16 VCurrent consumption at 12 V < 150 mAOther designs on request.Accessories Part numberConnector housing 7-pin 1 928 404 025Contact pins For 0.5 - 0.7 mm; Contents: 100 x 1 928 498 001Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawingH Retaining plateP Space for mating connector and wiring harnessX Pin assignment600 8,3123456779 32,78426YYHPX814,36,7 32,72749,117,635,122,7792,830,7+ 0,2- 0,1Dimensional drawingA Distance between hub and holder B Distance between steering-angle sensor and steering-column assembly flange M Fitting direction 34231 0,50,8 1,8MAB30,5 max.Part number 0 265 005 411Bosch Automotive Aftermarket 2009 | 2010Angle sensorMeasurement of angles up to 88 Potentiometric angular-position

sensors with linear characteristic curve. Sturdy design for exacting

demands. Compact size. ApplicationSensors of this type are used in motor vehicles to record the angle of rotation of the throttle valve. They are exposed to extreme operating conditions, being attached directly to the throttle valve housing by means of an extended throttle valve shaft in the engine compartment. To maintain reliable operation under such conditions, the sensors are resistant to fuels, oils, saline fog and industrial atmospheres.Design and operationThe throttle-valve angular-position sensor is a potentiometric angular-position sensor with a linear characteristic curve. It is used with fuel-injection engines to convert the angle of rotation of the throttle valve into a proportional voltage ratio. To do so, the rotor with its special wipers connected to the throttle-valve shaft travels along cor-responding resistance tracks, with the position of the throttle valve being converted into the above-mentioned voltage ratio. The throttle-valve angular-position sensors have no return spring.VersionThe throttle-valve angular-position sensor 0 280 122 001 has one linear characteristic curve. The throttle-valve angular-position sensor 0 280 122 201 has two linear characteristic curves. This permits a particularly high resolution in the angle range 0...23.Explanation of characteristic quantities[ Output voltage Supply voltage Angle of rotation [ Output-voltage characteristic curve 2 [ Output-voltage characteristic curve 3Technical dataOperating voltage V 5Load Ohmic resistance10 | Angular-position sensors2009 | 2010 Bosch Automotive AftermarketAngle sensorMeasurement of angles up to 88Technical dataUseful electrical angle range degrees s 86Useful mechanical angle range degrees s 86Angle between internal stops (must not be reached when fitted) degrees e 95Direction of rotation AnyTotal resistance (term. 1-2) kO 2 z 20 %Wiper protective resistor (wiper in zero position, term. 2-3) O 710 ... 1380Permissible wiper current A s 18Voltage ratio from stop to stop - characteristic curve 1 0,04 s [/ s 0,96Slope of nominal characteristic curve deg 0,00927Operating temperature - 40 C ...+ 130 CApproximate value for permissible vibration acceleration m/s s 700Service life (rotary cycles) Mill. 2Accessories Part numberConnector 1 237 000 039Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureCharacteristic curveA Internal stop L Positional tolerance of wiper when attached N Nominal characteristic curve T Tolerance limits Useful electrical angle rangeCircuit diagram 1321( - )( + )Part number 0 280 122 001Circuit diagram 2321( - )( + )Angular-position sensors | 11Bosch Automotive Aftermarket 2009 | 2010Dimensional drawingA Plug connection B O-ring 14.65 x 2 mm C Attachment dimensions for throttle-valve housingD Clockwise E Anti-clockwise Throttle-valve opening direction11 6 0,5 13,5 M4 30,5 24,5 M4 2,3 min. 21 1762 - 4,5 5 R 6,5 38 16 15,1 3513 55 68 15,1 8 13 x 4555 90ABCDE2 9,7 35 30,5 2 4,6 16 AB3 1 2 Angle sensorMeasurement of angles up to 8812 | Angular-position sensors2009 | 2010 Bosch Automotive AftermarketAngle sensorMeasurement of angles up to 88Technical dataUseful electrical angle range degrees s 88Useful mechanical angle range degrees s 92Direction of rotation Anti-clockwisePermissible wiper current A s 20Voltage ratio in range 0...88 C - characteristic curve 2 0,05 s [ / s 0,985Voltage ratio in range 0...88 C - characteristic curve 3 0,05 s [ / s 0,970Operating temperature - 40 C ...+ 85 CApproximate value for permissible vibration acceleration m/s s 300Service life (rotary cycles) Mill. 1,2Accessories Part numberConnector housing 1 284 485 118Connector housing Quantity required: 4 x; Contents: 5 x 1 284 477 121Protective cap Quantity required: 1 x; Contents: 5 x 1 280 703 023Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureCharacteristic curve 1 and 2A Internal stop Useful electrical angle rangeCircuit diagramThrottle valve in idle positionS2S14321( )( )Part number 0 280 122 201Angular-position sensors | 13Bosch Automotive Aftermarket 2009 | 2010Dimensional drawingF O-ring 16.5 x 2.5 mmG 2 ribs, 2.5 mm thickH Plug connectionI Blade terminalK This installation position is only permissible if throttle-valve shaft is sealed against oil, gasoline etc. Throtle-valve opening directionL Attachment dimensions for throttle-valve potentiometerM49012,57,58,530 25 min.14,5 20,5 217,5R44,81410,559h10547222039678570 21D10 84x4570F GHI4321LXKX7M4Angle sensorMeasurement of angles up to 8814 | Angular-position sensors2009 | 2010 Bosch Automotive AftermarketNotesNotes | 15Bosch Automotive Aftermarket 2009 | 2010Yaw sensorwith micromechanical acceleration sensor Flexible and cost-effective

sensor cluster with highly integrated electronics. Modular concept for different

integration stages. Multiple use of sensor signals

for future highly dynamic safety and convenience systems. Optimized monitoring and

safety concept.DesignThe entire unit consists of a yaw sensor and an acceleration sensor, as well as evaluation electronics. The components are mounted on a hybrid and hermetically sealed in a metal housing.ApplicationThe sensor is used in the electronic stability program (ESP) on motor vehicles to measure the vehicle rotation about its vertical axis whilst at the same time determining the acceleration at right angles to the direction of travel. Electronic evaluation of the meas-ured values thus enables the ESP system to distinguish between cornering and skid-ding.Principle of operationTwo oscillatory masses are provided with printed conductors carrying an alternating current. As the two masses are in a con-stant magnetic field, they are subject to a (Lorentz) force which causes the masses to oscillate. Additional Coriolis forces act on the masses if rotary motion is applied. The resultant Coriolis acceleration is a measure of the yaw rate. The linear accel-eration values are recorded by a separate sensor element.Installation instructions Installation close to center of gravity. Max. reference axis deviation at right angles to direction of motion z 3. Tightening torque for bolts 6 +2/-1 Nm. Vibrations at installation location.Explanation of characteristic quantitiesO Yaw rate g Acceleration due to gravity 9.8065 m/s ; Linear (lateral) acceleration16 | Yaw sensors2009 | 2010 Bosch Automotive AftermarketYaw sensorwith micromechanical acceleration sensorPrinciple of operation: Coriolis accelerationv Oscillation speed Angular velocity: = 2v x Deviation of axis to reference surface z3ac

acV

acmVVt2Vt1ac

Block diagram+GNDDRS-OUTEvaluation CircuitOscilatorYaw Sensor1. CoriolisAccelerationUCAcceleration SensorUCUC OscilatorLoopLow Pass FilterPLLOffsetAdjustSens.AdjustOffsetAdjustSens.Adjust2. CoriolisAccelerationREF-OUTLIN-OUTVDDTestYaw sensors | 17Bosch Automotive Aftermarket 2009 | 2010Yaw sensorwith micromechanical acceleration sensorTechnical dataYaw sensor/type DRS-MM 1.0RMaximum yaw rate about axis of rotation (Z-axis) z 100 /sMinimum resolution A z 0,2 /sSensitivity 18 mV//sChange in sensitivity s 5 %Yaw-rate offset 2 /s ')Change in offset s 4 /sNon-linearity, max. deviation from optimum linear approximation s 1 % FSOStart-up time s 1 sDynamics e 30 HzElectrical noise (measured with 100 Hz bandwidth) s 5 myMaximum acceleration q z 1,8 gSensitivity 1000 mV/gChange in sensitivity s 5 %Offset 0 g ')Change in offset s 0,06 gNon-linearity, max. deviation from optimum linear approximation s 3 % FSOStart-up time s 1,0 sDynamics e 30 HzElectrical noise (measured with 100 Hz bandwidth) s 5 yGeneral information Operating-temperature range - 30 ...+ 85 CStorage-temperature range - 20 ...+ 50 CSupply voltage 12 V nominalSupply-voltage range 8,2 ... 16 VCurrent consumption at 12 V < 70 mAReference voltage 2,5 V z 50 mV ')') Zero point at 2.5 V (reference).Accessories Part numberConnector housing Quantity required: 1 x Tyco number 1-967 616-1 ')Contact pins For 0.75 mm; Quantity required: 6 x Tyco number 965 907-1 ')Seals For 1.4...1.9 mm; Quantity required: 6 x Tyco number 965 907-1 ')Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.') Available from Tyco Electronics.FigureCharacteristic curve+1000.00.65 V4.35 VOutput voltage UA1.02.03.04.05.0V-100Yaw ratePart number 0 265 005 25818 | Yaw sensors2009 | 2010 Bosch Automotive AftermarketDimensional drawingF Direction of travel S 6-pin connector Ra Reference axis Rf Reference surface q Acceleration directionA42,683,679,633356280,21233,135,16,1SFRfRaAA-APin assignmentPin 1 Reference Pin 2 BITE Pin 3 12 V Pin 4 Out DRS Pin 5 Out BS Pin 6 Ground231546Yaw sensorwith micromechanical acceleration sensorYaw sensors | 19Bosch Automotive Aftermarket 2009 | 2010Yaw sensor with CAN interfacewith micromechanical acceleration sensor Flexible and cost-effective

sensor cluster with highly integrated electronics. Modular concept for different

integration stages. Multiple use of sensor signals

for future highly dynamic safety and convenience systems. Optimised monitoring and

safety concept.DesignThe sensor cluster uses a new generation of micromechanical elements for the measurement and digital processing of angular velocity and acceleration. Based on PCB technology, they form a modular hardware and software concept with many new safety features providing a versatile and reliable solution for a wide variety of motor-vehicle applications.ApplicationThe introduction of the ESP system, the link with other chassis convenience systems and the development of advanced vehicle stabilization systems gave rise to the need for inertial signals to meet with exacting demands, particularly in terms of signal quality and stability, as well as additional measurement axes with a high degree of reliability. Bosch therefore developed a third generation, the versatile and inexpen-sive sensor cluster DRS MM3.x to meet the requirements of functions such as the hill-starting assistant, automatic parking brake, adaptive cruise and distance control, four-wheel drive, rollover intervention, electronic active steering and spring-damper control systems. DRS-MM3.7k is the basic version of the MM3 generation for ESP applications. It comprises a yaw sensor and an integrated lateral acceleration module.Principle of operationThe new micromechanical element for yaw-rate measurement is a member of the established group of vibrating gyrometers operating on the Coriolis principle (CVG = Coriolis Vibrating Gyros). It consists of an inverse tuning fork with two mutually perpendicular linear vibration modes, drive circuit and evaluation circuit. A comb-like structure provides electrostatic drive and evaluation. The Coriolis acceleration is measured electrostatically by way of en-gaging electrodes. The measurement ele-ment is made up of two masses connected by way of a spring with the same resonance frequency for both vibration modes. This is typically 15 kHz and thus outside the normal vehicle interference spectrum, making it resistant to disturbance acceleration. The evaluation circuit ASIC and the microme-chanical measurement element are located in a prefabricated housing with 20 connec-tions (Premold 20). The design of the acceleration module is comparable to that of the yaw-sensor module

and consists of a micromechanical meas-urement element, an electronic evaluation circuit and a housing with 12 connections (Premold 12).The spring-mass structure is moved in its sensitive axis by external acceleration and evaluated using a differential capacitor in the form of a comb structure.Explanation of characteristic quantitiesO Yaw rate g Acceleration due to gravity 9.8065 m/s20 | Yaw sensors2009 | 2010 Bosch Automotive AftermarketYaw sensor with CAN interfacewith micromechanical acceleration sensorDimensional drawingF Direction of travel S 4-pin connector Ra Reference axis Rf Reference surface Pin 1 GND Pin 2 CANL Pin 3 CANH Pin 4 12 V79,332,73562806,2RaRf1232,161,742,8SF4231Yaw sensors | 21Bosch Automotive Aftermarket 2009 | 2010Yaw sensor with CAN interfacewith micromechanical acceleration sensorPrinciple of operationO Angular velocity (to be measured)q, q and O are the signals that the (illustrated) sensor supplies, where:O Angular velocityq Acceleration in y direction = Lateral accelerationq Acceleration in x direction = Longitudinal acceleration+Z Sensor+ay+Y Sensor+ax+X Sensor+

Drive frameCoriolis frameDetection frame+

Z-Axis+DetectionDetection+DriveDriveBlock diagramEEPROMMcrocohlroerCANDrverCANLGNDCANHUBATCANLCANHoploha EMlFleroplohaCANcrculryvolageregualor+OscalorSPlRT1RS1vDDRT2C1C22 3 41C3RS2SPlSPl5v5v5v5vSehsoreenehlYaw rale

zSehsoreenehlAcceeralohay1SehsoreenehlAcceeralohax 22 | Yaw sensors2009 | 2010 Bosch Automotive AftermarketTechnical dataYaw sensor/type DRS-MM 3.7KMaximum yaw rate about axis of rotation (Z-axis) z 100 /sMinimum resolution A z 0,1 /sSensitivity 200 LSB//sSensitivity tolerance over service life ') s 5 %Yaw-rate offset s 1,5 /sOffset error over service life ') s 2 /sNon-linearity, max. deviation from optimum linear approximation s 1 /sStart-up time s 1 sElectrical noise (measured with 100 Hz bandwidth) s 0,2 /Linear acceleration sensor Maximum acceleration q z 1,8 gSensitivity 800 LSB/m/sSensitivity 7845 LSB/gSensitivity tolerance over service life ') s 5 %Offset s 0,03 gOffset error over service life ') s 0,1 gNon-linearity, max. deviation from optimum linear approximation s 4 % FSOStart-up time s 0,25 sDynamics 15 HzElectrical noise (measured with 100 Hz bandwidth) s 0,01 [General information Operating-temperature range -40 ... 85 CStorage-temperature range -40 ... 50 CSupply voltage 12 V nominalSupply-voltage range 7 ... 18 VCurrent consumption at 12V < 130 mA') Service life: 6,000 h, over 15 years.Acceleration characteristic curveupperlimitationlowerlimitationCode h LSB186403276846896+1,8-1,8Acceeraloh ay h g0Yaw sensor with CAN interfacewith micromechanical acceleration sensorAccessories Part numberConnectors TYCO 114-18063-014, MQS code APin 114-18063-001Latch TYCO C-208-15641FigureYaw rate characteristic curve-10012768upperlimitationlowerlimitation3276852768Code h LSB+1000Yaw Rale

h }sPart number 0 265 005 642Yaw sensors | 23Bosch Automotive Aftermarket 2009 | 2010Yaw sensor with CAN interfacewith micromechanical acceleration sensorFigurePart number 0 265 005 764Technical dataYaw sensor/type DRS-MM 3.7KMaximum yaw rate about axis of rotation (Z-axis) z 100 /sMinimum resolution A z 0,1 /sSensitivity 200 LSB//sSensitivity tolerance over service life ') s 5 %Yaw-rate offset s 3,5 /sOffset error over service life ') s 2 /sNon-linearity, max. deviation from optimum linear approximation s 1 /sStart-up time s 1 sElectrical noise (measured with 100 Hz bandwidth) s 0,2 /Linear acceleration sensor Maximum acceleration q z 1,8 gSensitivity 7849 LSB/gSensitivity tolerance over service life ') s 5 %Offset s 0,03 gOffset error over service life ') s 0,1 gStart-up time s 5 sDynamics 15 HzElectrical noise (measured with 100 Hz bandwidth) s 0,01 [General information Operating-temperature range -40 ... 85 CStorage-temperature range -40 ... 85 CSupply voltage 14 V nominalSupply-voltage range 7 ... 18 VCurrent consumption at 12V < 130 mA') Service life: 6,000 h, over 15 years.Acceleration characteristic curveupperlimitationlowerlimitationCode h LSB186403276846896+1,8-1,8Acceeraloh ay h g0Yaw rate characteristic curve-10012768upperlimitationlowerlimitation3276852768Code h LSB+1000Yaw Rale

h }s24 | Yaw sensors2009 | 2010 Bosch Automotive AftermarketNotesNotes | 25Bosch Automotive Aftermarket 2009 | 2010Inductive speed sensorIncremental measurement of rotational speeds and angles. Non-contacting and thus

wear-free rotational-speed measurement. Sturdy design for exacting

demands. Strong output signal.

Measurement dependent on

specific direction of rotation.ApplicationInductive speed sensors of this type are suitable for a wide range of speed record-ing applications. Depending on design, they measure engine speeds or wheel speeds for ABS systems with zero contact or wear and convert the speeds into elec-trical signals.Design and operationThe soft iron core of the speed sensor is surrounded by a winding and is located directly opposite a rotating trigger wheel with only a narrow air gap in between. The soft iron core is connected to a permanent magnet, the magnetic field of which extends into the ferromagnetic trigger wheel and is influenced by this. If there is a tooth directly opposite the sensor, this concen-trates the magnetic field and thus intensifies the magnetic flux in the coil. A gap, on the other hand, weakens the flux in the coil. These two situations alternate con-stantly as the ring gear rotates. Changes in magnetic flux occur at the gap-to-tooth transitions (leading tooth edge) and at the tooth-to-gap transitions (trailing tooth edge). In accordance with Faradays law, these changes induce an AC voltage in the coil. The frequency of this can be used to determine the speed.The sensor supplies an output pulse for each tooth, the level of which depends on the speed, the size of the air gap, the shape of the tooth and the rotor materials used. As well as the frequency, the ampli-tude of the output signal also increases as the speed rises. Therefore, a minimum speed is required to reliably evaluate very low voltages. A reference mark on the trigger wheel in the form of a large gap allows the position of the trigger wheel to be determined in addition to measuring the speed. The trigger wheel sensor ring is part of the speed recording system. In order to be able to draw reliable conclusions about the speeds, the sensor ring is sub-ject to stringent technical requirements. Trigger wheel sensor ring specifications are available on request.Explanation of characteristic quantities[ Output voltage n Speed s Air gapTechnical dataRotational-speed measuring range ') n min - 20 ... 7000Sustained ambient temperature/coil zone C - 40 ...+ 150Max. vibration m/s 1200Number of turns 4300 z 10Winding resistance at 20 C ) O 860 z 10 %Inductance at 1 kHz mH 370 z 15 %Degree of protection IP 67Output voltage ) [ V 0 ... 200Signal frequency 1 ... 2500 Hz') Referenced to corresponding trigger wheel. ) Change factor | = 1+0.004 (g -20C); g Winding temperature.26 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketInductive speed sensorIncremental measurement of rotational speeds and angles.Rotational-speed sensor (block diagram)1 Cable 2 Permanent magnet 3 Sensor housing 4 Housing block 5 Soft-iron core 6 Coil 7 Air gap 8 Trigger wheel with reference mark2345 68S Nxxxxxxxxxxxxxxxx17Rotational-speed sensors | 27Bosch Automotive Aftermarket 2009 | 2010Inductive speed sensorIncremental measurement of rotational speeds and angles.Technical dataCable length with connector mm 360 15Sustained ambient temperature/cable zone C - 40 ...+ 120Accessories Part numberConnector 1 928 402 412Connector 1 928 402 579Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawing32121180R12,5R7R11 17,95 18h9192718L = 3606,7121410845245XX 3,5Circuit diagramConnections: 1 Output voltage 2 Ground3 Screen1 3 2N SPart number 0 261 210 10428 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketInductive speed sensorIncremental measurement of rotational speeds and angles.Technical dataCable length with connector mm 553 10Sustained ambient temperature/cable zone C - 40 ...+ 130Accessories Part numberConnector On request from Tyco Electronics Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawing19

21,36 2 1 3 X O 90 7,6 13 27 25 26,5 12 570 8 14 5 24 21 3,5 20,7 17,95 R7,5 R11 X 45 Circuit diagramConnections: 1 Output voltage 2 Ground 3 Screen3 1 2N SPart number 0 261 210 147Rotational-speed sensors | 29Bosch Automotive Aftermarket 2009 | 2010Inductive speed sensorIncremental measurement of rotational speeds and angles.Technical dataCable length with connector mm 450 15Sustained ambient temperature/cable zone C - 40 ...+ 120Accessories Part numberConnector 1 928 402 966Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawingO1813R12,5300 R720,73,5R111319122739,515,5450536,522,55921,1517,95X2X6,7Circuit diagramConnections: 1 Output voltage 2 Ground3 Screen1 3 2N SPart number 0 281 002 21430 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketNotesNotes | 31Bosch Automotive Aftermarket 2009 | 2010Passive speed sensorApplicationA passive (inductive) rotational-speed sensor

consists of a permanent magnet. Connected to this is a soft magnetic pole piece within a coil with several thousand wire turns. A constant magnetic field is generated in this manner. The pole piece is located directly above the sensor ring, which is a toothed wheel permanently connected to the wheel hub. As the sensor ring turns, the constant magnetic field is disturbed by the con-stant alternation between tooth and gap. This alters the magnetic flux through the pole piece and thus also the magnetic flux through the coil winding. The change in magnetic field induces an AC voltage in the winding, which is tapped at the ends of the winding. Both the frequency and the amplitude of the AC voltage are propor-tional to the wheel speed. This means that if a wheel is not moving, the induced volt-age is equal to zero. The tooth shape, air gap, rate of voltage rise and input sensitiv-ity of the electronic control unit determine the lowest vehicle speed which can still be measured and thus the minimum response sensitivity and switching rate which can be attained for ABS applications. There are different pole-piece designs and different methods of installation to suit the differ-ent conditions encountered at the wheel. The most commonly used types are the flat pole piece and the diamond-shaped pole piece. Both versions must be precisely aligned with the sensor ring on installation.Technical dataSustained ambient temperature / cable zone - 40 C ...+ 115 CLimited-time temperature for coil zone up to 150 C 200 hLimited-time temperature for coil zone up to 160 C 50 x 30 minLimited-time temperature for coil zone up to 175 C 10 x 10 minBlock diagram1 Permanent magnet 2 Solenoid 3 Pole piece 4 Steel sensor ring 5 Magnetic lines of forceSignal output voltagea Passive wheel-speed sensor with sensor ring b Sensor signal at constant wheel speed c Sensor signal with increasing wheel speedUmaxUminttUta b c32 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketPassive speed sensorTechnical dataCable length with connector 883 mm 20 mmSustained ambient temperature / coil zone - 40 C ...+ 115 CMax. vibration loading 1000 m/sNumber of turns 6000 z 40Output voltage [ 0,0001 V ... 1 VSignal frequency 1 ... 2000 HzAccessories Part numberConnector housing 2-pin Contact pins For 0,52,5 mm; Content: 100 x Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required. Customer must provide mating connector/contacts. If another plug connector is to be used, then the cable must be sealed against ingress of moisture.FigureDimensional drawing82829,549,5R 35R 9,5R 12,5R 11R 12,5182212161027154,810,2135883230230110178451,8Part number 0 265 006 366Rotational-speed sensors | 33Bosch Automotive Aftermarket 2009 | 2010Passive speed sensorTechnical dataCable length with connector 601 mm 10 mmSustained ambient temperature / coil zone - 40 C ...+ 115 CMax. vibration loading 1000 m/sNumber of turns 6000 z 40Output voltage [ 0,0001 V ... 1 VSignal frequency 1 ... 2000 HzAccessories Part numberConnector housing 2-pin Contact pins For 0,52,5 mm; Content: 100 x Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required. Customer must provide mating connector/contacts. If another plug connector is to be used, then the cable must be sealed against ingress of moisture.FigureDimensional drawing1540,819171830554560112510R 11R7,5318,58812127017,956,7

Part number 0 265 006 83334 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketPassive speed sensorTechnical dataCable length with connector 525 mm 10 mmSustained ambient temperature / coil zone - 40 C ...+ 120 CMax. vibration loading 1000 m/sNumber of turns 6000 z 40Output voltage [ 0,0001 V ... 1 VSignal frequency 1 ... 2000 HzAccessories Part numberConnector housing 2-pin Contact pins For 0,52,5 mm; Content: 100 x Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required. Customer must provide mating connector/contacts. If another plug connector is to be used, then the cable must be sealed against ingress of moisture.FigureDimensional drawing23,814,82842,8525211,81010,34,8990R 11R6R12,5181956,517,95Part number 0 265 006 487Rotational-speed sensors | 35Bosch Automotive Aftermarket 2009 | 2010Passive speed sensorTechnical dataCable length with connector 353 mm 20 mmMax. vibration loading 1000 m/sFigureDimensional drawing2821,749,7353271,81014 4,81290R 11R 6R 12,5181956,517,95Part number 0 265 006 22736 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketPassive speed sensorFigureDimensional drawing27,81221,761,5545390290275271810149,4R12,5R74 1517,95196,7Part number 0 265 006 482Rotational-speed sensors | 37Bosch Automotive Aftermarket 2009 | 2010Hall speed sensorDigital measurement of rotational speeds Precise, reliable digital

measurement of rotational speed, angles and distances. Non-contacting measurement.

Hall IC in sensor with open

collector output. Not susceptible to

contamination. Resistant to mineral-oil

products (fuel, engine oil). Transmission of information

on sensor signal quality.DesignHall sensors consist of a semiconductor wafer with integrated driver circuits (e.g. Schmitt trigger) for signal conditioning, a transistor as output driver and a permanent magnet. These are hermetically sealed in a plastic connector housing. In an active rotational-speed sensor, magnets assume the function of the sensor-ring teeth. The magnets are integrated into a multiple rotor for example and are arranged with alternating polarity around its periphery. The measuring cell of the active rotational-speed sensor is exposed to the constantly changing magnetic field of these magnets. There is thus a constant change in the magnetic flux through the measuring cell as the multiple rotor turns.ApplicationHall speed sensors are suitable for non-contacting and thus wear-free rotational-speed measurement. Thanks to its com-pact design and low weight, the active rotational-speed sensor can be installed at or in a wheel bearing.Principle of operationThe principal sensor components are either Hall elements or magneto-resistive elements. Both elements generate a voltage which is governed by the magnetic flux through the measuring element. The voltage is condi-tioned in the active speed range. In contrast to an inductive sensor, the voltage to be evaluated is not a function of the wheel speed. The wheel speed can thus be meas-ured almost until the wheel has stopped. A typical feature of an active speed sensor is the local amplifier. This is integrated into the sensor housing together with the measurement cell. A two-core cable provides the connection to the control unit. The speed information is transmitted in the form of a load-independent current. As with an inductive speed sensor, the fre-quency of the current is proportional to the wheel speed. This form of transmission using conditioned digital signals is not susceptible to inductive disturbance volt-ages as is the case with the type of trans-mission with inductive speed sensors.Installation instructions Standard installation conditions ensure full sensor operating capacity. Route connecting leads in parallel to minimise interference. Protect sensor against the destructive effect of static discharge (CMOS elements).Explanation of characteristic quantities=0 Static operation possible. >0 Only dynamic operation possible. Max. LOW output voltage with Output current = 20 mA. ( Supply current for Hall sensor. ( fall time (trailing signal edge). t rise time (leading signal edge).Technical dataOutput current 0 ... 20 mASwitching time ( ') s 1 sSwitching time ( ) s 15 s') Time from HIGH to LOW, measured between connections (0) and (-) from 90% to 10%.) Time from LOW to HIGH, measured between connections (0) and (-) from 10% to 90%.38 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketHall speed sensorDigital measurement of rotational speedsBlock diagramHall-Sensor0GNDI+ILAAVVAOSCIUVU0RVUVRotational-speed sensors | 39Bosch Automotive Aftermarket 2009 | 2010Hall speed sensorDigital measurement of rotational speedsTechnical dataAccessories Part numberConnector housing For 0.5...1.0 mm 1 928 403 110Contact pins For 0.5...1.0 mm; Contents: 20 x 1 987 280 103Contact pins For 1.5...2.5 mm; Contents: 20 x 1 987 280 105Individual seals For 0.5...1.0 mm; Contents: 50 x 1 987 280 106Individual seals For 1.5...2.5 mm; Contents: 20 x 1 987 280 107Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawingS 3-pin plug connection Sez Sensor zone Stz Connector zone Tz Temperature zone O O-ringSUAUV213336,8OTzSez Stz18,70,2647,30,22017,98- 0,2415+0,5- 0,2250,5126,52220,413R80,2R120,219Part number 0 232 103 021Minimum trigger-wheel speed 0 min.Maximum trigger-wheel speed 4000 min.Maximum working air gap 1,8 mmMinimum working air gap 0,1 mmRated supply voltage [ 5 VSupply-voltage range 4,75 ... 5,25 V ')Supply current ( Typically 5.5 mAOutput voltage [ 0 ...Output saturation range [ s 0,5 VSustained temperature in sensor and transition zone - 40 ...+ 150 CSustained temperature in connector zone - 40 ...+ 130 C') At ambient temperature 23 z 5 C.The trigger wheel must be designed as a 2-track wheel. The phase sensor must installed in central position. Permissible centre offset: z0.5 mm. Segment shape: Average diameter e 45 mm Segment width e 5 mm Segment length e 10 mm Segment height e 3.5 mm40 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketHall speed sensorDigital measurement of rotational speedsInstallation requirementsDr Direction of rotationDrL4S1S2Z1L190180Z3L3Z4L2Z2Test wheelL3Z4L4Z1L1Z2Z3-0, 5R3-0,5R30,1R32,566R22,50,1242466666624240, 1R27,5L2Ouput-signal profile[ Output voltage [ Output saturation voltage o Angle of rotation q Signal widthS

36027018090L2L4L3L1Z3Z4Z2Z1A,SatUA,OU0Rotational-speed sensors | 41Bosch Automotive Aftermarket 2009 | 2010Hall speed sensorDigital measurement of rotational speedsTechnical dataMinimum trigger-wheel speed 10 min.Maximum trigger-wheel speed 4500 min.Maximum working air gap 1,5 mmMinimum working air gap 0,1 mmRated supply voltage [ 12 VSupply-voltage range 4,5 ... 24 V )Supply current ( 10 mAOutput voltage [ 0 ...Output saturation range [ s 0,5 VSustained temperature in sensor and transition zone - 40 ...+ 150 C ')Sustained temperature in connector zone - 40 ...+ 120 C ')') Short-term -40...+150 C permissible.') Short-term -40...+130 C permissible.) At ambient temperature 23 z 5 C.Accessories Part numberConnector housing For 0.5...1.0 mm 1 928 403 110Contact pins For 0.5...1.0 mm; Contents: 20 x 1 987 280 103Contact pins For 1.5...2.5 mm; Contents: 20 x 1 987 280 105Individual seals For 0.5...1.0 mm; Contents: 50 x 1 987 280 106Individual seals For 1.5...2.5 mm; Contents: 20 x 1 987 280 107Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawing7,5 25 S O Tz SezStz 25 15 24,4 11,5 19 1221 17,98 49 24 1,515,4 31 UA UV Part number 0 232 103 022The trigger wheel is scanned radially. Segment shape: Diameter e 30 mm Tooth height e 4.5 mm Tooth width e 10 mm Material thickness e 3.5 mm42 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketInstallation requirementsDr Direction of rotation 24Z1Dr L1,5 s 4,545L1Test wheelOuput-signal profile[ Output voltage [ Output saturation voltage o Angle of rotation q Signal widthS

LOWA,SatHIGHUA,OU

Hall speed sensorDigital measurement of rotational speedsRotational-speed sensors | 43Bosch Automotive Aftermarket 2009 | 2010Hall speed sensorDigital measurement of rotational speedsTechnical dataMinimum trigger-wheel speed 0 min.Maximum trigger-wheel speed 4000 min.Maximum working air gap 1,8 mmMinimum working air gap 0,2 mmRated supply voltage [ 12 VSupply-voltage range 4,7 ... 18 VSupply current ( Typically 5.6 mAOutput voltage [ 0,3 ...Output saturation range [ s 24 VSustained temperature in sensor and transition zone - 40 ...+ 150 CSustained temperature in connector zone - 40 ...+ 150 CAccessories Part numberConnector housing 1 928 404 073Contact pins at 0.5...1.0 mm; Contents: 100 or 4000 units 1 928 498 054Contact pins at 1.5...2.5 mm; Contents: 100 or 4000 units 1 928 498 055Individual wire seal at 0.5...1.0 mm; Contents: 10 or 1000 units 1 928 300 599Individual wire seal at 1.52.5 mm; Contents: 10 or 1000 units 1 928 300 600FigureDimensional drawing20,4R8R13317,98241919,82510,54,110,911,831R11,5Part number 0 232 103 050The phase sensor is installed by pressing (not striking). Before installation, grease the sealing ring with a mineral oil based lubricant. The first cable support point must be on the sensor mounting, max. 150 mm after the connector. Max. tightening torque: 8 z0.5 Nm44 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketInstallation requirementsDr Direction of rotation7080DrLSFML(x)(y)(z)Test wheel708048Ouput-signal profile

op

UA,OhighlowUA,Sat

relHall speed sensorDigital measurement of rotational speedsRotational-speed sensors | 45Bosch Automotive Aftermarket 2009 | 2010Hall speed sensorDigital measurement of rotational speedsTechnical dataMinimum trigger-wheel speed 0 min.Maximum trigger-wheel speed 4500 min.Maximum working air gap 1,8 mmMinimum working air gap 0,2 mmRated supply voltage [ 5 VSupply-voltage range 4,5 ... 16 VSupply current ( Typically 5.6 mAOutput voltage [ 0,3 ...Output saturation range [ s 16 VSustained temperature in sensor and transition zone - 40 ...+ 150 CSustained temperature in connector zone - 40 ...+ 130 CAccessories Part numberConnector housing 1 928 404 073Contact pins at 0.5...1.0 mm; Contents: 100 units 1 928 498 058Contact pins at 1.5...2.5 mm; Contents: 100 units 1 928 498 059Individual wire seal at 0.5...1.0 mm; Contents: 10 or 1000 units 1 928 300 599Individual wire seal at 1.52.5 mm; Contents: 10 or 1000 units 1 928 300 600FigureDimensional drawing20,3R8R13317,98241919,831,51,51R11,5Part number 0 232 103 052The phase sensor is installed by pressing (not striking). Before installation, grease the sealing ring with a mineral oil based lubricant. The first cable support point must be on the sensor mounting, max. 150 mm after the connector. Max. tightening torque: 8 z0.5 Nm46 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketInstallation requirementsDr Direction of rotation7080DrLSFML(x)(y)(z)Test wheel708048Ouput-signal profile

op

UA,OhighlowUA,Sat

relHall speed sensorDigital measurement of rotational speedsRotational-speed sensors | 47Bosch Automotive Aftermarket 2009 | 2010Active speed sensorDesignMost modern braking systems these days only make use of active speed sensors. These usually consist of a silicon IC, her-metically sealed in plastic and located in the sensor head. In addition to magneto-resistive ICs (resist-ance changes in response to changes in magnetic field), Bosch predominantly em-ploys Hall sensor elements which react to even the slightest changes in the magnetic field and thus permit larger air gaps than passive speed sensors.Sensor ringsA multiple rotor acts as the sensor ring in the active speed sensor. This takes the form of alternately magnetized plastic elements in annular arrangement on a non-magnetic metallic substrate. These North and South poles assume the function of the sensor ring teeth. The IC in the sensor is exposed to the constantly changing magnetic field of these magnets. There is thus a constant change in the magnetic flux through the IC as the multiple rotor turns. A steel sensor ring can also be used as an alternative to the multiple rotor. In this case, the Hall IC is provided with a magnet which generates a constant magnetic field. As the sensor ring turns, the constant mag-netic field is disturbed by the constant alternation between tooth and gap. The measurement principle, signal processing method and the IC are otherwise identical to the sensor with no magnet.FeaturesA typical feature of active speed sensors is the integration of the Hall measuring element, signal amplifier and signal condi-tioning in an IC. The speed information is transmitted as a load-independent current in the form of rectangular pulses. The frequency of the current pulses is proportional to the wheel speed and de-tection is possible almost until the wheel has stopped (0.1 km/h). The supply voltage is between 4.5 and 12 V. The rectangular output signal level is 7 mA (low) and 14 mA (high). With this form of transmission using digital signals, inductive disturbance voltages are ineffective, unlike with passive induc-tive sensors for example. A two-core cable provides the connection to the control unit. Thanks to its compact design and low weight, the active speed sensor can be installed on or in a wheel bearing on a ve-hicle. Various standard sensor head forms are suitable for this purpose.Technical dataRated supply voltage [ 12 VSupply-voltage range 4,5 ... 12 VOutput current 5,9 ... 16,8 mASustained temperature in sensor and transition zone ') -40 ...+ 150 CSustained temperature in connector zone -40 ...+ 115 CSignal frequency 1 ... 2500 Hz') Short-term -40+170C permissible.48 | Rotational-speed sensorsThe signal strength is governed by the working air gap and the properties of the steel and multiple rotor.2009 | 2010 Bosch Automotive AftermarketActive speed sensorExploded view 1 Wheel hub 2 Ball bearing 3 Multiple rotor 4 Wheel-speed sensorSectional view through active rotational-speed sensor1 Sensor element 2 Multiple rotor with alternating North and South magnetisationDiagrammatic figure for rotational-speed sensing= Generated Hall voltage (in Volt)? Constant current (in amps)B Magnetic flux density (in Tesla)N North poleS South polea Hall IC with multi-pole pulse sensorb Hall IC with steel pulse sensor and solenoid in sensor1 Sensor element2 Multi-pole ring3 Solenoid4 Pulse wheelRotational-speed sensors | 49Bosch Automotive Aftermarket 2009 | 2010Active speed sensorAccessories Part numberConnector housing 2-polig 2 264 420 424Contact pins For 0,52,5 mm; Content: 100 x 2 263 124 303O-ring 2 260 210 308Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required. Customer must provide mating connector/contacts. If a different connector is used, the cable must be sealed against the incidence of moisture.FigureDimensional drawingPin 1 Supply voltage (white wire) Pin 2 Signal (black wire)1046,110,86,7R 7 R 101828,11858142018361921512014312

Part number 0 265 007 52750 | Rotational-speed sensors2009 | 2010 Bosch Automotive AftermarketActive speed sensorAccessories Part numberConnector housing 2-pin Tyco number 1-967 644-1 ')Contact pins For 0.5...2.5 mm Tyco number 962 885-1 ')Single-wire seal For 0.5...1.0 mm Tyco number 967 067-2 ')Single-wire seal For 1.5...2.5 mm Tyco number 967 067-1 ')Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required. Customer must provide mating connector/contacts. If another plug connector is to be used, then the cable must be sealed against ingress of moisture.') Available from Tyco Electronics.FigureDimensional drawingPin 1 Supply voltage (white wire) Pin 2 Signal (black wire)1013,69,725,37,14,5R2R 7R 84,215,227,986,186,2143,2330760120016585951053010,212

Part number 0 265 007 544Rotational-speed sensors | 51Bosch Automotive Aftermarket 2009 | 2010Piezoelectric acceleration sensorMeasurement of acceleration up to 35 g Acceleration measurement

using piezoelectric bending element (bimorph strips) Micromechanical acceleration

sensor (available on request) Little dependence on

temperature High sensitivity

Large measuring range Application In passenger protection systems on motor vehicles for triggering the airbags, the belt tensioners, the anti-roll bar and the belt locking systems. For example as impact sensors for moni-toring impact loads on transporters. As the lower cut-off frequency is 0.9 Hz, the sensor is only able to detect changes in acceleration.Design and operationThe heart of the acceleration sensor is a piezoceramic strip made of a polycrystal-line sintered material. Following electric polarisation, this material exhibits the piezoelectric effect: When pressure is exerted, the mechanical strain results in charge separation or a voltage which can be tapped by way of electrodes. The piezo-electric bending element is a cemented assembly formed of two piezoelectric strips, the so-called bimorph strips, of opposite polarity. They are provided with electrodes and bonded to a centre electrode. The advantage of this configuration is that the pyroelectric signals arising from changes in temperature are mutually compensated. If acceleration occurs, the piezoceramic element bends by up to 10` m on account of its mass inertia. For signal conditioning, the sensor is provided with a hybrid circuit consisting of an imped-ance transformer, a filter and an amplifier. The sensitivity and useful frequency range are thus specified. The filter blanks out high-frequency signal components. A lower cut-off frequency of 0.6 Hz is defined by the actual piezoelectric element. An addi-tional test input permits monitoring of the electronic functions of the sensor and the integrity of the piezoelectric strip.Test signalOn applying +5 V very briefly to the test input, a functional sensor supplies a positive output pulse. If there is a break in the signal path there will be no pulse and if the bimorph strip has broken off the magnitude of the pulse will increase. The pulses must be applied to both outputs in the case of versions with two bimorph strips.Installation instructionsAcceleration sensors must be installed such that the base plate is either perpendicular or parallel to the direction of acceleration or deceleration.Block diagram of two-channel sensor+ + Technical dataParameter min type maxMeasuring range at = 5 V g ') - 35 + 35Frequency range (-3dB) Hz 0,9 Calibrated sensitivity at room temperature mV g 57,5 60 62,5Operating temperature range C - 45 + 95') Acceleration due to gravity g = 9.81 m/s.52 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketPiezoelectric acceleration sensorMeasurement of acceleration up to 35 gTechnical dataParameter min type maxFrequency range (-3dB) Hz 340Supply voltage V 4,00 5,00 5,25Supply current ( mA 15No-load voltage with zero acceleration mV /2z60 mVElectrical output Connection assignment Pin 1 Output BConnection assignment Pin 2 = +5 VConnection assignment Pin 3 DataConnection assignment Pin 4 Test inputConnection assignment Pin 5 Output AConnection assignment Pin 6 Housing, groundFigureDimensional drawing1 2 3 4 5 680,73,82011,418,81 2 3 4 5666XXInstallation positionA, B Measurement direction Base plate parallel to measurement direction Acceleration direction A, output voltage Channel A _ > /2 Acceleration in direction B, output voltage Channel B [ > /2.Part number 0 273 101 150With two 90 offset sensing directions. Suitable for PCB mounting.Acceleration sensors | 53Bosch Automotive Aftermarket 2009 | 2010Surface micromechanical acceleration sensorMeasurement of z35 g or z50 g acceleration Complete 35 g or 50 g

measuring range. Few external components.

Integrated self-diagnosis.

Integrated offset compensation.

Integrated 2nd-order Bessel

filter. Ratiometric output signal.

Standard SMD PLCC28 housing.

Temperature range for automo-

tive applications.ApplicationThis type of acceleration sensor is used in motor vehicles as part of the airbag system. Depending on the installation position, the sensor can detect longitudinal or lateral acceleration in the passenger compartment (referenced to the direction of travel).Design and operationThe acceleration sensors operate on the capacitive measurement principle. Lateral sensing direction (in component plane): Acceleration causes deflection of the seismic element in an x-direction. This is suspended from wave-shaped bending springs. A set of electrodes connected to the seismic element (comb structure) moves in accordance with the given ac-celeration. These moving electrodes are designed as capacitor plates and are provided with fixed counter electrodes separated by a narrow air gap. The use of a capacitive differential circuit with two capacitors reduces the non-linearity of the signal evaluation. Integrated overload stops are designed to guard against direct contact between the electrodes (combs) in the event of excessively high acceleration. The mechanical sensitivity is governed by the geometrical shape of the springs. Changes in C1 and C2 are detected and converted into a corresponding voltage by a capacitance/voltage converter.Explanation of characteristic quantitiesW Acceleration ( = 9.81 m/s) , Supply voltage , Offset voltage 5 Sensitivity Output voltage =(,/2) + (,+5 o) (,/5V)Installation instructionsA deviation of 1 of the installation position from the horizontal causes an acceleration measurement error of 0.02 g. The sensor is protected against reverse polarity.Principle of operation1 Horizontally sprung seismic element with electrodes 2 Spring 3 Fixed electrodes with capacitance 4 Al printed conductor 5 Bond pad 6 Fixed electrodes with capacitance 7 Silicon oxide 8 Torsion spring 9 Vertically sprung seismic element with electrodes a Acceleration in sensing direction Measurement capacitance a~( - ) / ( + )C1C2CM231456789aC1C2CM54 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketSurface micromechanical acceleration sensorMeasurement of z35 g or z50 g accelerationSensing direction+aYX+a-a-aVDDU (X Out)VDD/2GNDDesign and operationX AxisC/V ConverterY AxisSC FilterC/V ConverterEvaluation ASICGNDTestOut Y Out X VDD Off Y Off X Sensor-ElementSC FilterOffsetAdjustOffsetAdjustOscillatorPin assignmentSMB05x/SMB06xM(PLCC28)42312826272519 2021 22232418121314151617115 6 7 8 910Acceleration sensors | 55Bosch Automotive Aftermarket 2009 | 2010Surface micromechanical acceleration sensorMeasurement of z35 g or z50 g accelerationTechnical dataParameter min normal max Limit values Supply voltage V -0,3 6Storage temperature C -55 +105Mechanical impact when deenergized ) g 2000Mechanical impact when energized g 1000ESD (each pin) kV 1,5 Temperature rise K/min. 20Operating conditions Supply voltage V 4,75 5 5,25Supply current ( 1-channel unit mA 6 7Supply current ( 2-channel unit mA 10 14Operating temperature C -40 +85Measurement and operating features Sensitivity mV/g 55 Sensitivity mV/g 38,5 Sensitivity tolerance ') % 5 9Non-linearity of sensitivity % 0,8 2Transverse-axis sensitivity ') % 5Output at zero acceleration VDD/ 2 Offset at zero acceleration after offset adjustment mV z150Offset at zero acceleration without offset adjustment V zVdd/ 4Offset adjustment s 1,65Offset / test input voltage (X/Y) low V 0,25 VDDOffset / test input voltage (X/Y) high V 0,75 VDDSelf-test z35g, at 5 V mV 250 385 866Self-test z50g, at 5 V mV 200 336 610Output voltage range [ _ = z50 A V 0,25 VDD -0,25Output current A z50 Capacitive output load pF 10003 dB cut-off frequency 2nd-order Bessel filter Hz 320 400 480Output noise 10 to 1000 Hz ) mg/vHz 2,5 4,5) Excessive shock can cause permanent damage to the unit. Sensor malfunctioning due to mechanical impact or excessive g levels is detected by the on-chip self-test.') As a percentage of nominal sensitivity over service life and temperature range.') Output signal resulting from acceleration in any axis perpendicular to the sensing axis.) Output noise with offset adjustment not in operation. With offset adjustment in operation, the noise level is roughly twice as high.56 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketTechnical dataAcceleration ') z 35 gSensing axis XSensor type SMB 050') Measuring range for full-load deflection is guaranteed after setting offset to VDD/2 .FigurePart number 0 273 101 138Surface micromechanical acceleration sensorMeasurement of z35 g or z50 g accelerationTechnical dataAcceleration ') z 35 gSensing axis X/YSensor type SMB 060') Measuring range for full-load deflection is guaranteed after setting offset to VDD/2 .FigurePart number 0 273 101 143Technical dataAcceleration ') z 35 gSensing axis X/-XSensor type SMB 065') Measuring range for full-load deflection is guaranteed after setting offset to VDD/2 .FigurePart number 0 273 101 144Technical dataAcceleration ') z 50 gSensing axis XSensor type SMB 052') Measuring range for full-load deflection is guaranteed after setting offset to VDD/2 .FigurePart number 0 273 101 155Acceleration sensors | 57Bosch Automotive Aftermarket 2009 | 2010Surface micromechanical acceleration sensorMeasurement of z35 g or z50 g accelerationTechnical dataAcceleration ') z 50 gSensing axis X/-XSensor type SMB 067') Measuring range for full-load deflection is guaranteed after setting offset to VDD/2 .FigurePart number 0 273 101 157Technical dataAcceleration ') z 50 gSensing axis X/YSensor type SMB 062') Measuring range for full-load deflection is guaranteed after setting offset to VDD/2 .FigurePart number 0 273 101 15458 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketNotesNotes | 59Bosch Automotive Aftermarket 2009 | 2010Piezoelectric vibration sensorMeasurement of structure-borne sound and acceleration Reliable detection of

structure-borne sound to protect machines and motors. Piezoceramic element with high

measurement sensitivity. Sturdy compact design. ApplicationVibration sensors of this type are suitable for detecting structure-borne vibration occurring for example in motor-vehicle en-gines due to irregular combustion and in machines. Thanks to their robust design, these vibration sensors can withstand even the most severe operating conditions.Areas of application Knock control for internal-combustion engines Machine-tool protection Cavitation detection Monitoring of pivot bearings Anti-theft systemsDesign and operationOn account of its inertia, a mass exerts compressive forces on an annular piezo-ceramic element in the same rhythm as the vibrations causing them. As a result of these forces, charge transfer occurs within the ceramic element and a voltage is gen-erated between the upper and lower sides of the ceramic element. The voltage is tapped via contact washers - often filtered and integrated - and is available for use as a measurement signal. Vibration sensors are bolted to the object to be measured so as to relay the vibrations at the measure-ment location directly to the sensors.NoteFor a 3-pin connector, 1 connector housing, 3 contact pins and 3 individual seals are required. Genuine Tyco crimping tools must be used for motor vehicle applications.Measurement sensitivityEach vibration sensor has individual trans-mission characteristics closely related to the measuring sensitivity. The sensitivity is defined as the output voltage per unit of acceleration due to gravity (refer to char-acteristic curve). The production-related sensitivity scatter is acceptable for applica-tions in which the main emphasis is on re-cording the occurrence of vibrations rather than on their amplitude. The low voltages supplied by the sensor can be evaluated using a high-impedance AC voltage amplifier.EvaluationThe signals from these sensors can be evaluated with an electronic module.Installation instructionsThe sensors must rest directly on their metal surfaces. Use must not be made of packing plates, spring or toothed lock washers for support. The contact surface of the mounting hole must be of high quality to ensure low-resonance coupling of the sensors to the measurement loca-tion. The sensor cable is to be laid such that no resonance vibration can occur. The sensor must not be allowed to have contact with liquids for lengthy periods.Explanation of characteristic quantitiesF Sensitivity | Frequency g Acceleration due to gravityPin assignmentPin 1, 2 Measurement signal Pin 3 Screen, dummy60 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketPiezoelectric vibration sensorMeasurement of structure-borne sound and accelerationTechnical dataPermissible short-term vibration s 400 gInstallation Grey cast iron bolt M 8 x 25 ; Quality 8.8Aluminium bolt M 8 x 30 ; Quality 8.8Tightening torque (possible with lubrication) 20 z 5 NmInstallation position AnyVibration sensor (design)1 Seismic element with compressive forces F2 Housing 3 Piezoceramic element 4 Screw 5 Contact 6 Electrical connection 7 Machine blockV VibrationV7FF123456Mounting hole0,050,05M822RZ16AACharacteristic curveTransmission characteristics as a function of frequency51015kHz 0 10 20 30 mV g-1.fEAcceleration sensors | 61Bosch Automotive Aftermarket 2009 | 2010Piezoelectric vibration sensorMeasurement of structure-borne sound and accelerationTechnical dataVibration sensors 2-pole, without cableFrequency range 3 ... 22 kHzSensitivity at 5 kHz 26 z 8 mV/gLinearity between 5...20 kHz at resonance 15 %Main resonance frequency > 25 kHzSelf-impedance > 1 MOCapacitance range 800 ... 1400 pFTemperature dependence of sensitivity s 0,06 mV/g KOperating temperature range - 40 ...+ 150 CPermissible sustained vibration s 80 gAccessories Part numberConnector housing For 0.5...1.0 mm 1 928 403 137Contact pins For 0.5...1.0 mm; Contents: 20 x 1 987 280 103Contact pins For 1.5...2.5 mm; Contents: 20 x 1 987 280 105Individual seal For 0.5...1.0 mm; Contents: 50 x 1 987 280 106Individual seal For 1.5...2.5 mm; Contents: 20 x 1 987 280 107Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawinga Contact surfacePart number 0 261 231 14862 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketPiezoelectric vibration sensorMeasurement of structure-borne sound and accelerationTechnical dataVibration sensors 2-pole, with cable, up to 130 CFrequency range 3 ... 22 kHzSensitivity at 5 kHz 26 z 8 mV/gLinearity between 5...20 kHz at resonance 15 %Main resonance frequency > 25 kHzSelf-impedance > 1 MOCapacitance range 800 ... 1400 pFTemperature dependence of sensitivity s 0,06 mV/g KOperating temperature range - 40 ...+ 130 CPermissible sustained vibration s 80 gAccessories Part numberConnector housing For 0.5...1.0 mm 1 928 403 826Contact pins For 0.5...1.0 mm; Contents: 100 x 1 928 498 060Contact pins For 1.5...2.5 mm; Contents: 100 x 1 928 498 061Individual seal For 0.5...1.0 mm; Contents: 10 x 1 928 300 599Individual seal For 1.5...2.5 mm; Contents: 10 x 1 928 300 600Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawinga Contact surfacePart number 0 261 231 153Acceleration sensors | 63Bosch Automotive Aftermarket 2009 | 2010Piezoelectric vibration sensorMeasurement of structure-borne sound and accelerationTechnical dataVibration sensors 3-pole, with cable, up to 150 CFrequency range 3 ... 22 kHzSensitivity at 5 kHz 26 z 8 mV/gLinearity between 5...20 kHz at resonance 15 %Main resonance frequency > 25 kHzSelf-impedance > 1 MOCapacitance range 800 ... 1400 pFTemperature dependence of sensitivity s 0,06 mV/g KOperating temperature range - 40 ...+ 150 CPermissible sustained vibration s 80 gAccessories Part numberConnector housing For 0.5...1.0 mm 1 928 403 110Contact pins For 0.5...1.0 mm; Contents: 20 x 1 987 280 103Contact pins For 1.5...2.5 mm; Contents: 20 x 1 987 280 105Individual seal For 0.5...1.0 mm; Contents: 50 x 1 987 280 106Individual seal For 1.5...2.5 mm; Contents: 20 x 1 987 280 107Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawinga Contact surfacePart number 0 261 231 11864 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketPiezoelectric vibration sensorMeasurement of structure-borne sound and accelerationTechnical dataVibration sensors 2-pole, without cableFrequency range 3 ... 22 kHzSensitivity at 5 kHz 30 z 6 mV/gLinearity between 5...20 kHz at resonance 10 %Main resonance frequency > 30 kHzSelf-impedance > 1 MOCapacitance range 950 ... 1350 pFTemperature dependence of sensitivity s 0,04 mV/g KOperating temperature range - 40 ...+ 150 CPermissible sustained vibration s 80 gAccessories Part numberConnector housing 2-pin 1 928 403 874Contact pins For 0.5...1.0 mm; Contents: 100 x 1 928 498 056Contact pins For 1.5...2.5 mm; Contents: 100 x 1 928 498 057Individual seal For 0.5...1.0 mm; Contents: 10 x 1 987 300 599Individual seal For 1.5...2.5 mm; Contents: 10 x 1 987 300 600Dummy plug For 1.5...2.5 mm; Contents: 10 x 1 928 300 601Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawing51,826138,3180,4242022Part number 0 261 231 173Acceleration sensors | 65Bosch Automotive Aftermarket 2009 | 2010Piezoelectric vibration sensorMeasurement of structure-borne sound and accelerationTechnical dataVibration sensors 2-pole, without cableFrequency range 3 ... 22 kHzSensitivity at 5 kHz 30 z 6 mV/gLinearity between 5...20 kHz at resonance 10 %Main resonance frequency > 30 kHzSelf-impedance > 30 MOCapacitance range 950 ... 1350 pFTemperature dependence of sensitivity s 0,04 mV/g KOperating temperature range - 40 ...+ 130 CPermissible sustained vibration s 50 gAccessories Part numberConnector housing 2-pin 1 928 403 874Contact pins For 0.5...1.0 mm; Contents: 100 x 1 928 498 056Contact pins For 1.5...2.5 mm; Contents: 100 x 1 928 498 057Individual seal For 0.5...1.0 mm; Contents: 10 x 1 987 300 599Individual seal For 1.5...2.5 mm; Contents: 10 x 1 987 300 600Dummy plug For 1.5...2.5 mm; Contents: 10 x 1 928 300 601Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawing51,826138,3180,4242022Part number 0 261 231 17666 | Acceleration sensors2009 | 2010 Bosch Automotive AftermarketPiezoelectric vibration sensorMeasurement of structure-borne sound and accelerationTechnical dataVibration sensors 2-pole, with cable, up to 130 CFrequency range 0 ... 24 kHzSensitivity at 5 kHz 30 z 6 mV/gLinearity between 5...20 kHz at resonance 10 %Main resonance frequency > 30 kHzSelf-impedance > 1 MOCapacitance range 950 ... 1350 pFTemperature dependence of sensitivity s 0,04 mV/g KOperating temperature range - 40 ...+ 130 CPermissible sustained vibration s 80 gAccessories Part numberConnector housing 2-pin 1 928 403 874Contact pins For 0.5...1.0 mm; Contents: 100 x 1 928 498 054Contact pins For 1.5...2.5 mm; Contents: 100 x 1 928 498 055Individual seal For 0.5...1.0 mm; Contents: 10 x 1 987 300 599Individual seal For 1.5...2.5 mm; Contents: 10 x 1 987 300 600Dummy plug For 1.5...2.5 mm; Contents: 10 x 1 928 300 601Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.FigureDimensional drawing26 1833,240,5220,4270PIN 1PIN 2138,35Part number 0 261 231 196Acceleration sensors | 67Bosch Automotive Aftermarket 2009 | 2010Signal evaluation for vibration sensorsSignal-evaluation module Programmable amplification.

Programmable band pass filter.

No external calibration required.

Choice of 4 selectable sensor

inputs or 2 symmetrical inputs. Integrated programmable

frequency divider. Analog stage with signal test.

Suitable for a wide range of

micro controller types. PLCC28 housing. ApplicationEvaluation of analog signals with piezoelec-tric acoustic pick-ups (vibration sensors)Design and operationA circuit integrated into the module evalu-ates the analog signals. The circuit contains a programmable amplifier, a band pass filter, a rectifier, an integrator and control logic. The use of SC circui