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Wheel speed velocity variation scaling system

  • US 9,187,119 B2
  • Filed: 06/28/2012
  • Issued: 11/17/2015
  • Est. Priority Date: 12/14/2011
  • Status: Active Grant
First Claim
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1. A control system for a power steering system, comprising:

  • a scaling module for calculating a scale factor based on a wheel frequency; and

    a command module that evaluates a wheel disturbance based on a wheel speed sensed by a wheel speed sensor and determines a wheel disturbance cancel amount based on the wheel speed, the command module further generates an assist command output to control the power steering system, the assist command is based on the wheel disturbance cancel amount and the scale factor, the scaling module further determines the scale factor based on a current magnitude, the current magnitude being based on a filtered wheel speed.

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