Vector J1939 User Day - Vector: Software + Services for ... Code Field Deployement Define...

Vector J1939 User DayStuttgart - Weilimdorf5th March 2008

Verification, virtual validation with CANoe/Matlab

Anthony Faucogney, Vector FranceStéphane Martin, Volvo 3P - EEEL

Summary

Verification, virtual validation with CANoe / MatlabVolvo 3PEEEL- 6972, Stéphane [email protected] 2

➡ Background

➡ Challenges

➡ Modeling concepts

➡ GSECU demonstrator

➡ Conclusions

➡ Next step...

mailto:[email protected]


Level of complexicity is growing and number of ECUs is increasing


Background

Time




Background toolsSeparated worlds...and how to reunify them

Network simulation:J1939J1587LIN...

Function simulation (ECU level)

Vehicle model (or mechanical model)

Acquisition cardsSimulation cards

HIL

CA

Noe

Matlab

Automatic tests




Challenges

2005 2006 2007 2008 20092004

Implementation Demonstrator and first applications New test rigsMATLAB CANoe

FocusImprove tools used in all EEE department in the product development and verification phases.Analysis of interaction Mechanics - Networks - Electrics - SoftwareMethods: Co-simulation between networks and modelsEstablished software plateforms

ModelsMechanics: PowerTrain driveline - VehicleFunctions: ECUs functionsNetworks: J1939 - J1587 - LIN

ApplicationsUnitary testsSub-system testsRequirements verification




Real ECU Virtual ECU

Modeling conceptsECU architecture




Real ECU Virtual ECU

Matlab/Simulink

model wich simulates the

functions included in the ECU

Functions included in the ECU

Activators

Sensors

NetworksJ1939/J1587/LIN

Acquisition boards drivers

Simulation boards drivers

CANoeJ1939/J158/LIN

Modeling conceptsECU architecture




Modeling conceptsNetwork - J1939 Interaction Layer

The J1939 Interaction Layer (J1939 IL) provides signal oriented access to the J1939 bus. The mapping of the signal on the Tx messages is dones accordingly to the configuration in the used database.

Database preparation

Database attributes to use the Vector Interaction Layer

Node configuration in CANoe to use the Vector Interaction Layer




Modeling conceptsVehicle model or functional model?




Modeling conceptsVehicle model or functional model?

Functional modelTransmission ECU (Robotized gearbox)e.g: gear selection, gear shifting

Mechanical model or vehicle modele.g: speed range (mechanical)

e.g. robotized gearbox




Modeling conceptsSimulation Toolkit

CANoe (networks simulation)

Simulink, ECU models (compiled for CANoe with RTW)

Simulink, Vehicle model (compiled for CANoe with RTW)

CANoe (automatic tests)

Matlab

Matlab

CANoe (HMI)




Modeling conceptsInterface between CANoe and Simulink

CANoe (networks simulation)

Simulink, ECU models (compiled for CANoe with RTW)

Simulink, Vehicle model (compiled for CANoe with RTW)

CANoe (automatic tests)

Matlab

Matlab

CANoe (HMI)

Interface definition• What variables do we must transmit?• Naming rules• Variable unit...




Gear shift ECU demonstratorWhat is a gear shift ECU?

EMS2 TECU EBS

ECS

VECUIC

GSECU

EMS2 TECUICVECUEBSECSGSECU

Engine ECUTransmission ECUInstrument ClusterVehicle ECUBrake ECUAir suspension ECUGear shift ECU

Real ECU

Virtual ECU

J1939




Gear shift ECU demonstratorGSECU test rig - Synoptic

Matlab

Matlab/Simulink allows to design:• ECUs models (fonctional models)• Vehicle model

RTW (Real Time Workshop) with the Vector target allows to generate a *.dll to CANoe.




Gear shift ECU demonstratorCANoe’s use for the panels design




Gear shift ECU demonstratorConclusions

All the objectives of the demonstrator were performed.

In the different development phases this demonstrator allowed to detect errors:

During the conception In sub-system test (one real ECU and virtual ECUs)








ProductionCode

FieldDeployement

DefineRequirements

System modeling

Softwaredesign

System integration &

tests

Softwareintegration &

testsHIL








This platform allows us to develop and to validate the specifications and the integration systems upstream to the V-Cycle by short verification cycles joined into the development cycle.

All components are simulated (with Matlab/simulink) In interface with a dSpace Micro Autobox (rapid prototyping)










ProductionCode

FieldDeployement

DefineRequirements

System modeling

Softwaredesign


tests


testsHIL

MIL

SIL










This plateform allows to create a simulator for 2 ECUs with more or less strong interaction depending of the brands

Development for 4 sites two different suppliers (Siemens & Delphi) on two far location Results: only 9 minors bugs on ECU software before test loop.










This plateform allows to create a simulator for 2 ECUs with more or less strong interaction depending of the brands

Development for 4 sites two different suppliers (Siemens & Delphi) on two far location Results: only 9 minors bugs on ECU software before test loop.

ProductionCode

FieldDeployement

DefineRequirements

System modeling

Softwaredesign


tests


tests

MIL HIL




The next step....

Integration of reflective memory in CANoe

Create a “universal port” for CANoe which would allow a seamless test environment combining simulation (e.g. Simulink models), networks (e.g. J1939, LIN, Flexray) and hardware (e.g, digital I/O and analog I/O).

Allow to create a real-time and determinist link with others applications (e.g. LabVIEW, MathWorks Xpc Target)

Allow to create a multiprocessor architecture based on CANoe realtime

Parameterization of models with a setting tool

Using this work for the new platform of tests




Thank you for your attention

[email protected]@volvo.com







Vector J1939 User Day - Vector: Software + Services for ... Code Field Deployement Define...

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