The usage of simulation methods for the calibration of electronic control units (ECU) is state of the art. Here simple, physical motivated models for the description of the relevant system behavior are widely used. For detailed function test or even for the calibration of electronic control unit software functions models which describe the relevant behavior quantitatively and qualitatively in a sufficient manner are required. The enhanced application area that is reached by using such models provides a substantial contribution to deal with increasing complexity and cost pressure by at the same time good quality. In order to bail out the whole potential of the method, the prerequisites for in series usage of simulation must be created. In this paper first the motivation for using simulation for ECU calibration is described. After that the development of suitable models with a three way catalyst as an example is shown. The practical usage of the model is described exemplary by the engine-exhaust gas system. The required model chain is described and the main components are verified by a comparison between a measured and simulated emission cycle. The potential for selected calibration packages is shown. Finally the special prerequisites and measures for a series-production usage of simulation are discussed and it is shown which of the measures are already put into practice within Bosch.


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    Title :

    Use of simulation for the calibration of engine electronic control units


    Contributors:


    Publication date :

    2012


    Size :

    15 Seiten, 9 Bilder, 6 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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