Vehicle speed sensor failure detection apparatus and method...

Details Vehicle speed sensor failure detection apparatus and method... Vehicle speed sensor failure detection apparatus and method...

2006-06-06

2006-06-06

Chin, Gary (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

C701S063000, C702S116000

Reexamination Certificate

active

07058490

ABSTRACT:
A vehicle speed sensor failure detection apparatus for an electronic control system having a vehicle speed sensor for generating a vehicle speed information signal indicating vehicle speed information includes a vehicle behavior detection portion, a brake sensor and a failure detection portion. If vehicle speed information generated from the vehicle speed sensor is less than or equal to a vehicle speed reference level stored in the failure detection portion, the vehicle behavior information signal generated during a predetermined period of time has a portion exceeding the behavior reference level stored in the failure detection portion and the brake is in the OFF state, the failure detection portion generates a failure signal.

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