This paper presents a novel decoupling control method on the engine torque control for the automotive engine tester. The engine tester is mainly composed of a dynamometer control system and an engine control system. The conventional engine tester has the problem that the performance of the engine torque control system is deteriorated by the influences of the interference between the dynamometer speed control system and the engine torque control system. The authors proposed the practical engine torque control system based on an observer and an identification system to eliminate the inference of dynamometer speed control system. The effect of observer's parameters error on the engine torque estimation response was analyzed. According to the result of this analysis, a practical method is proposed to identify the engine inertia moment and the shaft spring coefficient that are parameters of the observer. The authors confirmed that the proposed decoupling engine torque control system realised a robust control system from the interference with the dynamometer speed control system through simulation and experiments.


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    Title :

    High-performance automotive engine control in engine tester


    Additional title:

    Ein Hochleistungssteuerungssystem für Fahrzeugmaschinen auf Motorprüfständen


    Contributors:
    Hari, M. (author) / Suzuki, M. (author) / Nomura, M. (author) / Terashima, M. (author)


    Publication date :

    1995


    Size :

    8 Seiten, 14 Bilder, 2 Tabellen, 5 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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