This paper proposed a coordinated control of regenerative braking and EMB (electromechanical braking) in a PHEV (plug-in hybrid electric vehicle). The main objective is to maximise the regenerative braking energy while maintaining the safety and stability of the vehicle during braking. To achieve this goal, from the aspect of hardware, considering the braking torque can be controlled precisely and quickly, EMB system is used as the frictional braking system. From the aspect of control method, first, an I-curve is used to distribute the total braking torque between front and rear axles so more braking torque is distributed to the front axis. It there offers more possibility to capture more regenerative energy. Second, fuzzy logic control is used to distribute braking torque between regenerative braking and friction braking on the front axis. Comparing with look-up-table-based method, frizzy logic control strategy will distribute more braking torque to regenerative braking than to friction braking, which means more regenerative energy can be captured. To keep safety and stability of the vehicle, fuzzy-sliding mode control strategy is used to achieve the function of anti-lock braking. Standard driving cycles are used to test the performance of the control strategy. Simulation results indicate that the fuzzy-sliding mode control can keep the real slip ratio following the optimal slip ratio closely and quickly, so the braking distance can be shortened and safety and stability of vehicle maintained.


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    Title :

    Integrated control of electromechanical braking and regenerative braking in plug-in hybrid electric vehicles


    Additional title:

    Integrierte Regelung der elektromechanischen Bremsung sowie der Nutzbremsung bei Plug-In Hybridfahrzeugen


    Contributors:

    Published in:

    Publication date :

    2012


    Size :

    17 Seiten, 26 Bilder, 2 Tabellen, 15 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English







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