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Steering angle middle point detecting apparatus

  • US 4,961,474 A
  • Filed: 07/10/1989
  • Issued: 10/09/1990
  • Est. Priority Date: 07/11/1988
  • Status: Expired due to Term
First Claim
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1. An apparatus for detecting a steering angle middle point of a steering mechanism for converting rotations of a steering wheel to motion in right and left direction for steering a vehicle, comprising:

  • a vehicle speed detecting means for detecting a vehicle speed of said vehicle;

    a torque sensor for detecting steering torque exerted on said steering wheel at regular intervals;

    a steering position detecting means for detecting a steering position of said steering mechanism;

    a means for comparing a steering torque set value previously set according to said vehicle speed with a steering torque detected by said torque sensor; and

    a steering angle middle point calculating means for calculating a middle point of said steering angle by using the steering position of the steering mechanism detected by said steering position detecting means, when said detected steering torque is smaller than said steering torque set value.

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