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Abnormality detecting apparatus for an air temperature sensor

  • US 5,880,361 A
  • Filed: 08/12/1997
  • Issued: 03/09/1999
  • Est. Priority Date: 08/23/1996
  • Status: Expired due to Term
First Claim
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1. An abnormality detecting apparatus for detecting an abnormality of an air temperature sensor which detects a temperature of air in an engine compartment of a vehicle, said abnormality detecting apparatus comprising:

  • warmed state determining means for determining whether an engine in said engine compartment is in a predetermined warmed state;

    vehicle stop determining means for determining whether said vehicle is stopped; and

    sensor abnormality determining means for determining whether said air temperature sensor is abnormal based on a detected temperature of said air temperature sensor, a determination of said sensor abnormality determining means being performed when said warmed state determining means determines that said engine is in the predetermined warmed state and said vehicle stop determining means determines that said vehicle is stopped.

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