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Passive starting of a torque-ripple-free electric power steering system

  • US 6,460,649 B2
  • Filed: 02/16/2001
  • Issued: 10/08/2002
  • Est. Priority Date: 02/16/2001
  • Status: Expired due to Fees
First Claim
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1. A method for passively starting an electric power steering system, comprising:

  • disabling assist torque upon power-up;

    detecting an index pulse;

    enabling assist torque upon detecting the index pulse;

    receiving a variable input torque command; and

    ramping a variable assist torque towards the variable input torque command after enabling assist torque.

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