A robust controller is proposed for the clutch-to-clutch shift of a stepped-ratio automatic transmission. The control strategy consists of three parts: a feedback controller is derived using µ synthesis, which guarantees the system robustness; a feedforward controller is designed to improve the tracking performance; a disturbance compensator is used to reduce the effect of the disturbance on the system output. Finally the designed controller is tested on a powertrain simulation model, which contains a complete drivetrain and clutch actuators. It is demonstrated that the controller is robust against uncertainties in the parameters and variations in the driving conditions. Moreover, discrete implementations with a sampling time of 10 ms show the potential of the proposed controller for use in real vehicles.


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    Title :

    Design of a robust controller for shift control of an automatic transmission


    Contributors:


    Publication date :

    2012-12-01


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





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