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01/04/2008
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Hardware-in-the-loop testing of hybrid vehicles on dynamic motor and drivetrain test benches is now possible following intensive cooperation in Germany between simulation specialist IPG and AVL.
Called AVL InMotion, the solution is based on IPG’s well-established vehicle dynamics software, CarMaker, and is a key part of AVL’s hybrid development platform (HDP) strategy.
InMotion allows for virtual driving manoeuvres at test stands to analyse the dynamic behaviour of combustion engines and hybrid systems and their ECUs working in harmony. It should help car-makers to optimise consumption and emission values.
Normally only the combustion engine, with or without the hybrid components, and the gearbox are installed as real components on the test bench. The rest of the hybrid vehicle needs to be simulated.
For this purpose AVL InMotion contains the CarMaker models which simulate the complete dynamics of the hybrid vehicle to be tested. Next to the unit under test all relevant ECUs can be integrated as real hardware or software models into the simulation environment and analysed in their interaction with the real drivetrain.
Linked to virtual vehicle modules InMotion contains three-dimensional road models and a fully parameterised driver model that is able to perform closed-loop manoeuvres up to the stability limits. The simulation of arbitrary traffic scenarios allows the user to conduct virtual driving tests that are exactly reproducible.
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Author
Roger Bishop
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Copyright European Automotive Design.
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