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Torque-based steering system for steer by wire vehicles

  • US 6,554,095 B2
  • Filed: 04/06/2001
  • Issued: 04/29/2003
  • Est. Priority Date: 04/06/2001
  • Status: Expired due to Term
First Claim
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1. A steering system comprising:

  • a steering wheel used to control vehicle direction;

    a torque sensor generating a torque signal wherein said torque signal is proportional to an amount of torque a driver applies to said steering wheel and wherein said torque sensor is mounted on said steering shaft;

    an angle sensor generating an angle signal wherein said angle signal is proportional to a change in position of said steering wheel and wherein said angle sensor is mounted on said steering shaft; and

    an electronic unit to generate a reference signal to control vehicle direction wherein during a malfunction, said reference signal is generated utilizing said torque sensor signal without the angle sensor signal and, during normal operation said reference signal is generated utilizing said angle sensor signal without the torque sensor signal.

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