The present invention relates to a power assisted steering system arrangement (100A) for a vehicle comprising a steering wheel (120A), a first, driver, link arrangement (10A) comprises a linkage between the steering wheel (120C) and the front wheels (127,127) comprising a steering column (121A), a Recirculating Ball Joint, RCB, (123A) arranged on a first side of the vehicle, a track rod arrangement for steering the front wheels (127,127), a first lever arm (124A) arranged to transfer a driver torque applied by via the steering wheel to the track rod arrangement providing a connection between the RCB (123A) and the track rod arrangement. The system further comprises a torsion bar (128A) with a torsion-bar torque sensor associated with the steering column (121A), an assistance actuator (30A), arranged on a second side of the vehicle, opposite to the side of the vehicle where the RCB is arranged, said assistance actuator (30A) comprising at least an electric motor (115A) and an Electronic Control Unit, ECU, (110A) controlling the electric motor depending on control signals received from the torsion-bar torque sensor, and an assistance actuator link arrangement (20A) connected to said track rod arrangement, so that a steering torque applied by the driver as well as an assistance actuator torque provided or applied by the assistance actuator (30A) is transferred to the track rod arrangement steering the front wheels of the vehicle.


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    Title :

    A POWER ASSISTED STEERING SYSTEM ARRANGEMENT


    Contributors:
    HULTÉN JOHAN (author) / POHL JOCHEN (author)

    Publication date :

    2021-12-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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