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Apparatus for detecting anomaly of wheel speed sensors

  • US 7,734,388 B2
  • Filed: 08/28/2006
  • Issued: 06/08/2010
  • Est. Priority Date: 08/29/2005
  • Status: Expired due to Fees
First Claim
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1. A wheel-speed-sensor-anomaly detection apparatus for a vehicle equipped with wheel speed sensors for detecting rotational speeds of respective wheels, comprising:

  • anomaly detection means for detecting anomaly of the wheel speed sensors on the basis of at least rotational speeds of the wheels detected by the wheel speed sensors, wherein a wheel speed sensor detects a wheel rotational speed as a smaller value compared with a normal value when an anomaly of the wheel speed sensors occurs;

    gas-pressure-decrease detection means for detecting a decrease in tire gas pressure of each wheel; and

    restriction means for imposing a restriction on the wheel-speed-sensor-anomaly detection operation of the anomaly detection means based on detection of a decrease in the tire gas pressure.

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