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Steering apparatus for vehicle

  • US 6,389,342 B1
  • Filed: 04/07/2000
  • Issued: 05/14/2002
  • Est. Priority Date: 04/14/1999
  • Status: Active Grant
First Claim
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1. A steering apparatus for vehicle, comprising:

  • a steering mechanism for changing a direction of a tire wheel;

    an actuator for actuating said steering mechanism;

    a steering wheel mechanically unconnected to said steering mechanism;

    an electric motor connected to a rotational shaft of said steering wheel;

    a steering angle detector for detecting the steering angle of said steering wheel;

    a calculator for calculating a steering torque applied to said steering wheel based on the steering angle detected by said steering angle detector, a moment of inertia of said steering wheel, and a moment of inertia of said electric motor; and

    a controller for driving and controlling said actuator based on the steering torque calculated by said calculator.

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