Algorithm Developmentfor Diesel EnginesMechatronic Powertrain Systems

Confidence that paysWe can provide you with project solutionsfrom the idea to the start of productionusing proven, specialized and efficientprocesses. From more than 20 years ofexperience in developing and calibrating

engine control units, we have the confi-dence to fulfill your most challengingproject assignments to production level.Doing so, you and we can draw on thelargest pool of experts the market has tooffer.

Contact:

Oliver Predelli

+49 5371 805-1785

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Contents

Integral Component of Powertrain Development 4

Our Concepts and Tools 6

References and Tools 8

Our Software Tools – Our Seals of Quality 10

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R ealizing innovations forimplementation in mass productionis supported or sometimes only

made possible through new functionalitieson the engine control unit in powertrainengineering.

This is where we see algorithm devel-opment as an integral part of powertraindevelopment that works hand in hand withall of the engineering disciplines involved.This produces the following benefits:

• Processes can be handled on a modular basis and therefore more efficiently.

• Interfaces and interrelated sub-processes are mutually coordinated.

• You can choose whether to take advantage of the entire service spectrum or opt for the appropriate module.

Ensuring a high level of efficiency, IAV’s unique portfolio provides you with expertisein all areas of engine control.

Integral Component ofPowertrain Development

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Software Development ProcessV-Model

Requirement and concept

Implem

entation and integration

Customer requirements Conclude project

Requirements specification

• Compare with existing REQ• Analyze patent situation

Function concept

• Define interfaces• Approaches / evaluate• Concept review / validate concept• Issue tags (REQ_IAV_xxx)

Function specification

Function specification

Software coding

• Design function using Simulink®• Document functions• Prepare application information• Review function

• Test software module with MiL-Desk• Configure integration status

• Integrate functions• Test integration

Application

• Basic application• Generate dataset• Conduct tests (ST / WT)• Version application• Master EEPROM

System validation

• Validate function in vehicle / HiL

Cal

ibra

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valid

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Plan

Do Check

Act

• Generate target-specific code• Integrate manual code

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Algorithm and model testing with target hardware and real-time simulation, e. g. THEMOS,TR Sim, Axisuite

Managing data, versioning, evaluatingmeasurement data and providingdocumentation with standard software,e.g. IAV CalGuide, Borland StarTeam, IAVADoS, in production-level calibration

Algorithm realization and calibrationon the target system (single cylinder, multiple cylinder, vehicle) usingstandard calibration software, e. g.CANoe, INCA, CALDESK, IAV MiL-Desk, CaliAV

Re-utilization of existing algorithmmodules Modular principle forengine management inMATLAB®/SIMULINK®,ETAS ASCET

Adapting models to the targetsystem (engine, exhaust system, vehicle) independently ofthe system using scalablemodules, e.g. IAV MPEC withEtherCat link, ETAS ES 910, ETASES1000, dSPACE MicroAutoBox

Model-based development of new algorithms using MATLAB®/SIMULINK®

Automatic code generation andASAM-MCD2 generation

Advanced Rapid

Controller Prototyping

“Advanced Rapid Controller Prototyping”methodology

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IAV is a competent partner in developingalgorithms from the initial idea to start ofproduction. Our development activitycovers algorithms for functions throughoutthe engine, for the exhaust path as well asall for stages from air-filter inlet to tailpipe.Alongside solutions tailored to specificcustomer requirements, examples ofalgorithms IAV has developed in-house areshown below. In addition to commerciallyavailable standard tools, IAV uses testenvironments it has developed to validatethese advanced algorithms in the virtual(IAV Mil-Desk) or real world (IAV - MPEC).

• IAV Model-Based Controlled SCR – IAV SCR Control

• Model-Based Controlled Air Path – IAV MBCAP

• Hydraulic Wave Compensation Software – IAV HyWaCoS

• Modular Prototyping Engine Controller –IAV MPEC

• Advanced Closed-Loop CombustionControl Software – IAV AC3

• Virtual development environment –IAV MiL-Desk

Our Concepts and Tools

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IAV MPEC His concept provides a start-to-finish Rapid Prototyping tool chain. Itconsists of an algorithm developmentenvironment for an engine control unit andthe associated software. Using IAV’s FI2RE

injection and ignition control unit, numerousdegrees of freedom are provided foroptimizing engine development.

IAV AC3 Is a cylinder-pressure-based engine management system combining control ofthe main center of energy release, theenergy release rate, in-cylinder pressure aswell as indicated torque. This system is theideal tool for developing and calibratingalternative combustion processes.

IAV MBCAP MBCAP is a model-based control conceptfor regulating and pre-controlling the air-path. For example, the high-pressureexhaust-gas turbocharger can be continu-ously activated and deactivated for a two-stage supercharged diesel engine withoutsignificant losses in boost pressure.

IAV HyWaCoS HyWaCoS provides a correction functionthat reliably compensates for fluctuations inthe injected fuel quantity in a CR injectionsystem. Its model-based character makes ituniversally applicable while minimizingcalibration work input.

IAV SCR-Control Developed in-house by IAV, this softwareprovides the capability of operatingdifferent SCR systems. Modular in structure,the software can be adapted to differentSCR system types through its model-basedcharacter on the one hand and an opensource code on the other. This permits thefast and efficient implementation andvalidation of new SCR metering strategies.

IAV MiL-Desk IAV’s MiL-Desk tool chain combines real-time software modules with the benefits ofmodern calibration tools. Using a specialMatlab / Simulink block set, IAV’s MiL-Desktool chain provides access to measuredand adjusted variables in real time. It takes aSimulink model as the basis for generatingan executable autonomous file as well asthe interface descriptions required by thecalibration tool.

OBD For many years, we have been a reliablepartner to our customers in helping them tomeet the many different demands (USA,Europe etc.) on OBD systems. We havebeen able to demonstrate our expertiseworldwide and in all manner of vehicleconcepts.

References and Tools

Figure: Algorithm developmentin general

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• IAV – CalGuide• IAV/ETAS – CaliAV • IAV – Themos, TR-Sim• ATI – Vision, No-Hooks• dSPACE – CalDesk, Controldesk• ETAS – INCA/ASCET/Intecrio

IAV can adapt its tool chain to customerrequirements quickly and efficiently. Thisapplies to commercially available tools aswell as customer-specific tools and onesdeveloped in-house. Examples ofcommonly used tools are shown below.

• Imagine LMS – AMESim• MATLAB – Simulink, RT Workshop• Vector – CANalyzer, CANoe, CANape• Gamma Technologies – GT-Power• HiL simulations: dSpace, IAV, customer

• IAV – MiL-Desk • Exothermia – Axisuite • IAV – ADoS • Borland – StarTeam • IBM – DOORS

Our Software Tools

• Certified under DIN EN ISO 9001• Systems in conformity with AUTOSAR• Programming in conformity with MAAB• Software handling in line with SPICE• Development in conformity with ISO 26262

Our Seals of Quality

IAV GmbHCarnotstrasse 110587 BerlinGERMANY

Tel. +49 30 39978-0Fax +49 30 39978-9790

www.iav.com