An electro-hydraulic power steering system 34 for an electric vehicle comprises a pump 17 providing hydraulic pressure for power steering, and a controller 40 configured to control operation of pump 17 according to an upcoming power steering requirement of the vehicle. The upcoming power steering requirement is preferably predicted according to a vehicle operating condition, such as the location or a route determined by a navigation device. Pump 17 may also be controlled according to a current power steering requirement as determined with reference to a sensor, such as a steering wheel angle sensor, a steering wheel torque sensor, a vehicle speed sensor or a tyre pressure sensor, and the greater of the upcoming and current requirements may be used to control pump 17.


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    Title :

    Electro-hydraulic power steering system


    Contributors:

    Publication date :

    2018-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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