et3206a - ecotrons · 2020. 11. 23. · 1.1 tcu introduction ... torque command, etc., and...

ET3206A Datasheet_V2.7

1

ET3206A

⚫ Main Microprocessor

• NXP MPC56xx

• 64MHz

• 1M Flash

• 80K SRAM

• Float Point Capability

⚫ Monitor Microprocessor

• NXP S9S08

• Automotive rated 8-bit

⚫ Inputs

• 12 Analog Inputs

• 10 Digital Inputs

• 6 Frequency Inputs

• 3 Wake-up Inputs

⚫ 9-32 V Operating Voltage

⚫ Outputs

• 4 High-Side Drivers (all 4 channels could be configured as PWM outputs)

• 8 Low-Side Drivers

⚫ Communication

• 3 CAN 2.0B channels

⚫ 5V Sensor Supply

• 2 channels ⚫ Environmental

• -40°C to +85°C Operating

• ISO16750 Compliant

⚫ Simulink Model Based Design

⚫ OTP: 6KB


2

Date Version Note

V1.0

Nov. 11, 2019 V2.6 Section 4.7

Bootloader Reset

May 11, 2020 V2.7 Contact info update

Contact us: Web: http://www.ecotron.ai Email: [email protected]

[email protected]

Address: 13115 Barton Rd, STE H Whittier, CA, 90605 United States

Tel: +1 562-758-3039

+1 562-713-1105

http://www.ecotrons.com/mailto:[email protected]:[email protected]


3

CONTENTS

Chapter 1 General Information ............................................................................................... 5

1.1 TCU Introduction ................................................................................................................ 5

1.2 TCU Features ..................................................................................................................... 5

Chapter 2 Hardware ................................................................................................................... 6

2.1 Specification ........................................................................................................................ 6

2.2 Dimension ........................................................................................................................... 7

Chapter 3 Connector ................................................................................................................. 8

3.1 Connector Parts ................................................................................................................. 8

3.2 Pinout ................................................................................................................................... 9

3.3 System Example .............................................................................................................. 12

Chapter 4 Function Description and Application Note .................................................. 13

4.1 Power ................................................................................................................................. 13

4.1.1 TCU Power ................................................................................................................ 13

4.1.2 Sensor Power Supply ............................................................................................ 14

4.1.3 VPWR Control Logic .............................................................................................. 15

4.2 Inputs ................................................................................................................................. 16

4.2.1 Digital Inputs ............................................................................................................ 16

4.2.2 Analog Inputs ........................................................................................................... 17

4.2.3 Frequency Inputs .................................................................................................... 20

4.3 Outputs .............................................................................................................................. 21

4.3.1 Low Side Outputs.................................................................................................... 21

4.3.2 High Side Outputs ................................................................................................... 22

4.3.3 H Bridge Outputs .................................................................................................... 23

4.4 Communication Module .................................................................................................. 24

4.4.1 TCU CAN Module Introduction ............................................................................ 24

4.4.2 DBC File Import ....................................................................................................... 26

4.4.3 CCP Protocol Implementation ............................................................................. 27

4.5 Safety Monitoring Module ............................................................................................... 28

4.6 Software architecture....................................................................................................... 29


4

4.7 Reset .................................................................................................................................. 30

Chapter 5 Software Compatibility ........................................................................................ 31

5.1 Prototype/Production Code Generation – EcoCoder ................................................. 31

5.2 Powerful Calibration Software – EcoCAL..................................................................... 32

5.3 TCU Programming Tool – EcoFlash.............................................................................. 33

Appendix: Test Standard ....................................................................................................... 34

Environmental Test Standards .............................................................................................. 34

EMC Test Standards .............................................................................................................. 34

Electrical Performance Tests Standards ............................................................................. 34


5

Chapter 1 General Information

1.1 TCU Introduction

Transmission Control Unit is designed for EV/HEV transmission control. As one of the main control

units of the CAN bus-based vehicle control network, TCU controls vehicle transmission shifting

based on the user-defined transmission control strategy, vehicle driving modes, driver behaviors,

etc. TCU determines the optimal gear shift timing based on various signal inputs such as the

vehicle speed, engine/E-machine RPM, torque command, etc., and coordinates the powertrain

torque output to ensure smooth gear shifting and improve the vehicle economy and drivability.

1.2 TCU Features

ISO26262 Functional Safety

Ecotron TCU is designed according to ISO26262 functional safety standard (ASIL-C/D) and comes with a master-slave structure (a main chip and a monitoring chip) for safety monitoring.

Basic Software (BSW) Ecotron TCU comes with the basic/low-level software, supporting all typical input/output drivers for vehicle controls.

Model Based Design and Automatic Code Generation

The BSW is encapsulated as a Simulink library, EcoCoder. User could take the advantage of this model-based design tool to quickly build control strategy with BSW and Simulink generic blocks. One-click code generation is supported to build executable file and A2L description file.

CAN Bus-Based Programming EcoFlash is a CAN bus-based programming software. With this software, users could program the executable into TCU conveniently.

CAN Calibration Protocol (CCP) Ecotron TCU supports Ecotron calibration software EcoCAL, also compatible with INCA, CANape, or other CCP-based calibration tools.


6

Chapter 2 Hardware

2.1 Specification Supply Voltage DC 12/24 V (9~32V)

Working Temperature -40~85°C

Humidity 0~95%, no condensation

Storage Temperature -40~85°C

Protection Level IP67

Mechanical Shock 50g

Expected Life 10 years

Electric Performance ISO16750, ISO7637 compliance

EMC CISPR25 compliance

Dimensions 207×150×42mm

Weight ≤700g

Housing Die-casting aluminum

Rated Power Consumption 3W


7

2.2 Dimension


8

Chapter 3 Connector

3.1 Connector Parts

Ecotron TCUs use the automotive rated connector, made by Tyco Electronics, to meet the

automotive safety requirements. The following table lists parts of the connector. Customers can

buy their own connector parts to make the harness, or they can ask Ecotron to buy for them.

No. Name Part Number Supplier

1 80-pin PCB connector 1743275-3 TE

2 28-pin connector (white sealing) 1393436-2 TE

3 28 pos cap 1393454-2 TE

4 52-pin connector (white sealing) 1393450-3 TE

5 52 pos cap 1393454-7 TE

6 MT Ⅱ terminal 964274-2 TE

7 Seal plug 963530-1 TE

8 JPT terminal 964286-2 TE

9 Seal plug 963294-1 TE


9

3.2 Pinout

Name Pin # Description Specification

BATT 2

DC 12/24 V power Voltage range: 9-32V

*See page 13 for application note

28

VBATT

63 H-bridge Power, 9-32V

70

77

PGND

1

TCU ground

27

68

69

75

5V2 45 5V sensor supply

Maximum current: 50mA *See page 14 for application note 5V3 34

GND 8

Sensor ground 19

KEYON 17 Key switch input

Active-high, digital input ≥8.5V *See page 15 for application note KEYON 2 5

CANA_SHIELD 29 CAN A Shielding

CANB_SHIELD 41 CAN B Shielding

CAN A_H 43 CAN A_H Built-in 120 Ω terminal resistor

CAN A_L 31 CAN A_L

CAN B_H 42 CAN B_H Built-in 120 Ω terminal resistor

CAN B_L 30 CAN B_L

CAN C_H 18 CAN C_H Built-in 120 Ω terminal resistor

CAN C_L 6 CAN C_L

AI01 37

Analog inputs

A/D resolution: 12bit Input voltage range: 0-5V Voltage dividing ratio: 1


AI02 11

AI03 49

AI04 23

AI05 39


10

AI06 38

Analog inputs

A/D resolution: 12bit Input voltage range: 0-5V Pull-up voltage: 5V Pull-up resistor: 10K Voltage dividing ratio: 1

AI07 12

AI08 13

AI09 50

AI10 24

AI11 53 Analog inputs PT type sensor input

AI12 60

DI01 47

Digital inputs

Active-high: ≥8.5V Input voltage range: 0-24V


DI02 20

DI03 35

DI04 36

DI05 21

DI06 46

Digital inputs Active-low: ≤4V Input voltage range: 0-24V

DI07 9

DI08 22

DI09 10

DI10 48

SPEED1 26

Frequency inputs

Input frequency range: 1Hz – 1kHz


SPEED2 52

SPEED3 14

SPEED4 25

SPEED5 40

SPEED6 51

HSO01 7

High-side drivers

Nominal current: 1A; All 4 HSOs can be configured as PWM output


HSO02 44

HSO03 32

HSO04 33

LSO01 61

Low-side drivers

Nominal current: 250mA

LSO02 54

LSO03 74


11

LSO04 67 *See page 21 for application note

LSO05 55

LSO06 56

LSO07 62

LSO08 76

Hbridge 1A 78 1st output of the H-

bridge 1 Nominal current: 15A H-bridge 1 is internally connected to AI20 H-bridge 2 is internally connected to AI21 AI20/21 A/D resolution: 12bit Input voltage range: 9-32V


64

Hbridge 1B 71 2nd output of the H-

bridge 1 57


bridge 2 73


bridge 2 80


bridge 3

H-bridge 3 is internally connected to AI22 Nominal current: 15A A/D resolution: 10bit Input voltage range: 9-32V

65


bridge 3 58


12

3.3 System Example

VPWR

PGND

Power Supply

GND

Active High

Active Low

2

28

63

70

77

45

49

8

5V2

AI03

GND

47

46

KEYON

KEYON2

DI01

DI06

17

5

Sensor

BATT

VBATT

VBATT

BATT

VBATT

CANA_H

CANA_L

CANB_H

CANB_L

CANC_H

CANC_L

CANA_SHILD1

CANA_SHILD2

43

31

29

42

30

41

18

6

PGND

75

69

68

27

1

61

7

LSO01

HSO01

PGND

PGND

PGND

PGND

LOAD

LOAD


13

Chapter 4 Function Description and Application Note

4.1 Power 4.1.1 TCU Power

Example Diagram

Fuse

+

-

GND

TCU

BATT

BATT

19

2

8

Fuse63

70

8GND

VBATT

VBATT

77VBATT

PGND1

PGND27

PGND68

PGND69

PGND75

• Always connect all available power supply pins to allow maximum current capability, because each power pin only allows limited current through. To avoid current overload on certain pins, and to avoid the potential damage, all power pins should be connected even they seem to be redundant.

• The current rating of TCU for H bridge power supply is 15A and VCU current rating is 8A.

• Analog input channel AI28 is internally connected to BATT for TCU power supply voltage measurement. Its input voltage range is 0-32V.

• ‘Read ADC Volt’ block in EcoCoder could help read voltage of BATT, please refer to ‘0-32V Analog Voltage Input’ part of section 4.2.2 for block setting details.

• It is recommended to use a 5A fuse for pin2 and pin28. And 15A fuse for pin63, pin70 and pin77.


14

4.1.2 Sensor Power Supply

Example Diagram

TCU

45

8

5V2

AI02

GND

11Sensor

• ET3206A provides 2 channels of 5V sensor power supply.

• 5V sensor ground is common grounded internally with TCU power ground.

• Sensor ground should connect to TCU signal ground instead of vehicle chassis ground.


15

4.1.3 VPWR Control Logic

CAN Wake

KEYON

KEYON 2

PowerDelay

OR

OR

BATT

Power Supply

• With BATT connected, TCU Power (VPWR) could be activated by KEYON, KEYON 2, CAN Wake and Power Delay signal.

• Power Delay signal is controlled by the low-level software and it is used for TCU power-down delay. This delay function provides the power to the TCU for an extended time window after the user turning off the key-switch. During this extended time, or “after-run”, TCU could do some “house-keeping” work, such as storing the critical data into non-volatile memory (NVM).

• KEYON, KEYON 2 are wake-up inputs with actual pins on the TCU connector. They are active-high and could be used as wake-up signal inputs for some applications that need to wake up TCU.

• The user application software shall, before initiating the TCU shutdown process, make sure all the wake-up signals mentioned above are not keeping the TCU awake:

• KEYON, KEYON 2 need to be low. • Make sure there is no traffic on CAN bus.

• Notice: It is recommended to connect KEYON (Pin 17) to the actual vehicle key switch and use the “Power Management Example” block in EcoCoder to manage the TCU and vehicle shutdown process. Proved power management strategies are integrated in that block.


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4.2 Inputs 4.2.1 Digital Inputs

Example Diagram

Active High

Active Low

TCU

47

46

DI01

DI06

• The digital inputs on ET3206A can be used to read the state of a digital signal which shares ground reference with TCU.

• There are two kinds of inputs: • Active-high: EcoCoder block will read a default value of 0; When the channel reads a voltage≥8.5 V, the EcoCoder block will read the input as 1. • Active-low: EcoCoder block will read a default value of 1; When the channel reads a voltage≤4 V, the EcoCoder block will read the input as 0.


17

4.2.2 Analog Inputs

Type Resolution Voltage Range Channel # Description

Resistance

12bits 0-5 V

AI 06, 07, 08, 09, 10

Voltage AI 01, 02, 03, 04, 05

PT AI 11, 12

• ET3206A offers 12 analog inputs with 12bits resolution. The voltage range is 0-5V. There are three types of analog inputs, Resistance Input, Voltage Input and PT Type Input (PT1000 by default).


18

Analog Input Wiring Examples

Resistance Input Diagram

TCU5V

ADCAI06

100K

10K

38

10K

Voltage Input Diagram

0-5V dc 37

TCU

ADCAI01

100K


19

• Analog input channel AI28 in EcoCoder is dedicated for TCU power supply voltage measurement and is internally connected with TCU power supply pins. Users need to specify ‘Custom Voltage Ratio’ in the following EcoCoder block to help application software read correct voltage input- the ratio is ‘(200 + 31.6) / 31.6’.


20

4.2.3 Frequency Inputs

Example Diagram

26 Filter

100k

68k

PWM Input

Frequency Input

• ET3206A provides 6 PWM frequency input channels with pull-down resistors by default.

• The maximum resolution for period measurement is 0.01Hz.

• The measurable frequency range is 1Hz-1kHz.


21

4.3 Outputs 4.3.1 Low Side Outputs

Low Side Outputs Wiring Example

LOAD

V

61

TCU

LSO01

LSO Control

Low Side Outputs Driver Diagnostic

Channel Number Diagnostic Method

LSO 01, 02, 03, 04, 05, 06, 07, 08

– Output shorted to V + – Output shorted to GND – Open circuit – Over load – Over temperature

• ET3206A provides 8 low side outputs with overcurrent and overvoltage protection. These drivers could be used as Boolean outputs for driving peripheral devices such as relays, pumps, etc.

• 8 channels x 250mA continuous current.


22

4.3.2 High Side Outputs

High Side Outputs Wiring Examples

LOAD

7

TCU

HSO01

HSO Control

GND

VPWR

High Side Outputs Driver Diagnostic

Channel Number Diagnostic Method

All HSOs

– Output shorted to V + – Output shorted to GND – Open circuit – Over load – Over temperature

• This TCU provides 4 high side outputs with overcurrent and overvoltage protection. These drivers could be used as Boolean outputs for driving peripheral devices such as relays, pumps, etc.

• 4 channels (HSO 01, 02, 03, 04) x 1A continuous current

• All high side outputs, HSO01, 02, 03, 04, can be configured as PWM outputs. They could output 15Hz – 1KHz square wave PWM signals with resolution of 1Hz.


23

4.3.3 H Bridge Outputs

Example Diagram

TCU

78

71

H-Bridge1A

H-Bridge1B

LOAD

• H bridge drivers can provide three working modes: single-quadrant mode, double-quadrant mode and four-quadrant mode. H bridge has over temperature, over voltage, under voltage shutdown and dead zone protection.

• The H-bridge feedback current is used as a feedback signal for current limit/over-current protection, or current closed-loop control. The H-bridge driver hardware is controlled by PWM signal defined by lower level software.

• H-bridge 1 is internally connected to AI20, H-bridge 2 is internally connected to AI21, H-bridge 3 is internally connected to AI22. There are there types of input signal voltage range, 0-5V with 10bits resolution, and users could realize the diagnostic functions for all 3 H-bridge channels based on the voltage value.


24

4.4 Communication Module 4.4.1 TCU CAN Module Introduction

CAN Node

CAN0H

CAN Node

CANH CANLCANH CANL

CAN Node

CANH CANL

CAN1H CAN1L

Driver

CAN Node

CANH CANL

12

0Ω

Dri

ver

C

AN

2H

CA

N2L

PC

CAN Bus CAN Bus

120ΩCAN0L

Driver

120Ω 120Ω 120Ω

TCU

CAN

120Ω

• This TCU provides 3 CAN channels– CAN A, CAN B, CAN C, all CAN channels are CAN 2.0B high speed buses.

• All CAN channels are equipped with built-in 120Ω terminal resistors.

• CANA supports TCU wake-up function, the TCU could be woken up by any messages on CANA. This function could be used for situations where TCU need to be turned on for certain applications.


25

CAN Implementation Layers

(1) Driver layer: the data link layer of communication model, including the IO driver and CAN drive

of the microcontroller.

(2) Abstraction layer: the network layer of communication model. It is responsible for choosing

corresponding IOs, providing CAN channel initialization, CAN sender/receiver interface for the

service layer.

(3) Service layer: the interactive layer of communication model. The implementation of this layer

is based on the interface function provided by the abstraction layer and achieved with the

Simulink model and s-function.

(4) Application layer: with DBC file and customer’s Simulink model, specific CAN communication

setup based on user-defined parameters could be implemented in this layer.


26

4.4.2 DBC File Import

The implementation of CAN messages in the application software can utilize the DBC file which

specifies formats and scaling of the CAN messages and signals already. In many cases, the DBC

file is existing and full of CAN signals, and it saves a lot of work for users simply import the DBC

file into the Simulink models, and populate the CAN messages. Ecotron provides a convenient

way to convert the “*.DBC” file to “*.M” file and then populate the Simulink models. The

procedure is shown as below:


27

4.4.3 CCP Protocol Implementation

CCP service, DAQ definition and storage page configuration are implemented in low level

software; while the station address, DTO ID, CRO ID and other basic parameters can be configured

in the s-function.

Ecotron VCU/TCU supports CCP-based online calibration, the VCU/TCU is compatible with EcoCAL,

the Ecotron’s own calibration software, and other CCP-based calibration software such as INCA.

For more information about our calibration software EcoCAL, please refer to the EcoCAL User’s

Manual.


28

4.5 Safety Monitoring Module The VCU/TCU design is based on advanced safety monitoring concept. It implements a master-

slave architecture to assure the system safety. The microcontroller (master chip) is a 32-bit

controller, SPC56xx, while the slave chip is an 8-bit automotive level microchip, S9S08.

Three-level safety monitoring architecture

Level 1: Vehicle control functions, including all vehicle control strategies and fault diagnosis.

Level 2: Monitoring level 1 by a redundancy design, level 2 is independent to the Level 1. If there

is discrepancy between level 2 and the level 1, level 2 will force the critical safety related signals

such as torque request to ‘Neutral’.

Level 3: A slave chip is implemented in this level for monitoring the master controller. Master and

slave chips will constantly cross-check each other, if the check fails, the torque command will be

neutralized, as a result, hazardous situation could be avoided.


29

4.6 Software architecture

• There are two layers of software residing on top of microcontroller, application software (ASW) and basic software (BSW). BSW is preloaded into microcontroller by Ecotron. ASW is created by customer in Simulink environment and loaded to VCU/TCU with EcoFlash.

• BSW consist of three sub layers: • Service layer includes system service, memory service and communication service. This layer encapsulates all basic software functions into different service which would be directly called by command in application software. • ECU* abstraction layer encapsulates drivers of microprocessor and peripherals. Then, software and ECU hardware are separated. • Microprocessor and peripheral driver layer include drivers of microprocessor and peripherals. Typically, microprocessor includes driver of watchdog, timer, SPI, LIN, CAN, ADC, PWM and Flash. Peripheral includes drivers of HSO, LSO, power management chip and CAN transceiver.

• Notice: TCU stands for transmission control unit. TCU is a kind of ECU.


30

4.7 Reset This section is intended to demonstrate how to reset the VCU if it is powered off by accident during flashing procedure/voltage does not conform the operating voltage while flashing. Note: the consequence for the behaviors above is that the PC cannot recognize the VCU via EcoFlash, thus SW can’t be flashed, therefore, users must do the reset process. Solution: 1. Connection Connect SPEED2 (pin 52), SPEED4 (pin 25), SPEED6 (pin 51) to Ground. Connect SPEED1 (pin 26), SPEED3 (pin 14), SPEED5 (pin 40) to Power Supply. 2. Flash Configuration: CRO ID: 100; DTO ID: 101 Choose the correct baud rate (by default 500kbs) During the flashing process, make sure the switch is always on Note: It is highly recommended to flash the demotest SW for bootloader reset.


31

Chapter 5 Software Compatibility

5.1 Prototype/Production Code Generation – EcoCoder EcoCoder is an enhanced auto code generation library added on top of Simulink’s generic

Embedded Coder.

It is specifically designed for Ecotron hardware and it bridges the Simulink models directly to the

target hardware, providing users the capability to generate the production code by ‘ONE CLICK’.

For more details, please refer to the EcoCoder User Manual.


32

5.2 Powerful Calibration Software – EcoCAL EcoCAL is a professional calibration tool, developed by Ecotron. It is specifically designed for

Ecotron VCUs/TCUs or Controllers.

The software is based on the CCP protocol and uses the CAN bus for data communication with

target hardware. It has various measurement tools integrated for different kinds of signals,

providing a more straightforward interface. EcoCAL also integrates data logging function and

provides an integrated data analysis tool.

It parses the standard A2L files and manages the calibration data in the format of S19 files, Mot

files or CAL files.

For more details, please refer to EcoCAL User manual.


33

5.3 TCU Programming Tool – EcoFlash EcoFlash is a simple PC based software to program the controller, developed by Ecotron, using

CAN communication for programming, with a typical bootloader pre-programmed in the

microprocessor.

For more details, please refer to Ecotron EcoFlash User Manual.


34

Appendix: Test Standard

These tables are extracted from third party test report. For complete report, please email [email protected].

Environmental Test Standards Topic Test standard Electrical operation during cycling ambient temperature

ISO16750-4

Ambient storage temperature ISO16750-4

High and low temperature test ISO16750-4

Thermal shock ISO16750-4

Humid heat – cyclic test ISO16750-4

Damp heat, steady-state test ISO16750-4

Dust and particulate IP67

Splash test ISO16750-4

Leakage and function test ISO16750-4

Corrosion test ISO16750-4

Fluids and chemicals IP66

Mechanical shock / Pot hole test ISO16750-3

Vibration ISO16750-3

Drop ISO16750-3

EMC Test Standards Topic Test Standard Over voltage test ISO16750-2

Reverse polarity protection test ISO16750-2

AC voltage superposition test ISO16750-2

Supply voltage slow down test ISO16750-2

Voltage transient drop test ISO16750-2

Reset performance test NA

Starting voltage test ISO16750-2

Quiescent current measurement test Average quiescent current ≤ 1mA

Single - wire open circuit test ISO16750-2

Multi - line open circuit test ISO16750-2

Short-circuit protection ISO16750-2

Insulation resistance ISO16750-2

Electrical Performance Tests Standards Topic Test Standard

mailto:[email protected]


35

Over voltage test ISO16750-2

Reverse polarity protection test ISO16750-2

AC voltage superposition test ISO16750-2

Supply voltage slow down test ISO16750-2

Voltage transient drop test ISO16750-2

Reset performance test NA

Starting voltage test ISO16750-2

Quiescent current measurement test Average quiescent current ≤ 1mA

Single - wire open circuit test ISO16750-2

Multi - line open circuit test ISO16750-2

Short-circuit protection ISO16750-2

Insulation resistance ISO16750-2

et3206a - ecotrons · 2020. 11. 23. · 1.1 tcu introduction ... torque command, etc., and...

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