The ever-growing number of interacting electronic vehicle control systems requires new control algorithms to manage the increasing system complexity. As a result, torque-based control architecture has been popular for its easy extension as the torque demand variable is the only interface between the engine control algorithms and other vehicle control systems. Under the torque-based control architecture, the engine and AT coordinated control for upshift process is investigated. Based on the dynamics analysis, quantitative relationship between the turbine torque of HTC and output shaft torque of AT has been obtained. Then the coordinated control strategy has been developed to smooth the torque trajectory of AT output shaft. The designed control strategy is tested on a powertrain simulation model in MATLAB/Simulink and a test bench. Through simulation, the shift time range in which the engine coordinated control strategy is effective is acquired. The experimental results show that torque response of the diesel engine with electronic unit pumps can meet the requirements of coordinated control and the developed strategy can reduce the shift jerk and sliding friction work apparently.


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    Title :

    Diesel Engine Coordinated Control for AT Upshift Process


    Additional title:

    Sae Technical Papers


    Contributors:
    Ge, Yanwu (author) / Huang, Ying (author)

    Conference:

    SAE 2016 Commercial Vehicle Engineering Congress ; 2016



    Publication date :

    2016-09-27




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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