To improve the shift quality of the vehicle with clutch-to-clutch gear shifts, a nonlinear feedforward–feedback control scheme is proposed for clutch slip control during the shift inertia phase. The feedforward control is designed based on flatness in consideration of the system nonlinearities, and the linear feedback control is given to accommodate the model errors and the disturbances. Lookup tables, which are widely used to represent complex nonlinear characteristics of powertrain systems, appear in their original form in the designed feedforward controller, while the linear feedback controller is calculated through linear matrix inequalities such that the control system is robust against the parameter uncertainties. Finally, the designed controller is tested on an AMESim powertrain simulation model, which contains a time-variant model of clutch actuators.


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    Title :

    Nonlinear feedforward–feedback control of clutch-to-clutch shift technique


    Contributors:
    Gao, Bingzhao (author) / Chen, Hong (author) / Hu, Yunfeng (author) / Sanada, Kazushi (author)

    Published in:

    Vehicle System Dynamics ; 49 , 12 ; 1895-1911


    Publication date :

    2011-12-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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