A steering system includes a steering mechanism, a motor that is a source of an assist force, and a battery that supplies a voltage to the motor. The system includes a voltage sensor that detects a power supply voltage, a steering sensor that detects a steering angle, and a motor control signal generation circuit that calculates a q-axis voltage command value to allow the motor to generate the assist force and that generates a motor control signal based on the q-axis voltage command value. The system includes a steering-angular-velocity limiting circuit that calculates a compensation amount for compensation for the q-axis voltage command value and that derives the compensation amount by calculating a power supply compensation component based on the power supply voltage when the absolute value of the steering angle is equal to or larger than a predetermined steering angle close to a maximum steering angle.


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    Title :

    Steering System


    Contributors:

    Publication date :

    2016-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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