Apparatus for detecting the failure of a sensor

U.S. Patent Number: 5394341

Abstract: An apparatus to detect the failure of sensor is comprised of a microprocessor which reads sensor values. If the sensor values exceed the inherent noise level and exceed the maximum mechanical change in the system that portion of the signal is counted as noise. If the noise count exceeds a predetermined count, indicator signals the sensor is bad.

Inventors: Kepner; Charles M. (Walled Lake, MI)

Assignee: Ford Motor Company (Dearborn, MI)

Application Number: 08/037,157

Issued: 1995-02-28

Expired: 2007-02-28

Classes: 702/183 ; 324/537

Field of search: 364/550,551.01,481,483 324/537,538,549 340/650,652,653,654,661 341/118

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