A steer-by-wire steering system for a vehicle comprises: a rotatable steering shaft; a driver-operated steering input member connected to the steering shaft; and first and second torque feedback motors having output shafts connected to the steering shaft and each being operable to apply either a feedback torque or an offset torque to the steering shaft. The system further comprises: an angular position measuring arrangement for measuring the angular position of the steering shaft; an angular acceleration determination arrangement for determining the angular acceleration of the steering shaft; an envelope determination arrangement for establishing or determining an envelope of the measured or calculated angular acceleration of the steering shaft; a magnitude determination arrangement for determining the magnitude of the offset torque to be applied by the motors as a function of the envelope of the angular acceleration of the steering shaft, as modified by a scaling factor whereby a maximum defined offset torque is applied at a maximum defined amplitude and angular acceleration of the steering shaft.


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    Title :

    VEHICLE STEERING SYSTEM AND A METHOD OF CONTROLLING A VEHICLE STEERING SYSTEM


    Contributors:

    Publication date :

    2023-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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