Method for determining state of engine speed sensor for vehicle

Details Method for determining state of engine speed sensor for vehicle Method for determining state of engine speed sensor for vehicle

2006-09-19

2006-09-19

Kwon, John T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

C701S101000, C123S319000

Reexamination Certificate

active

07110868

ABSTRACT:
Disclosed is a method for determining the state of an engine speed sensor for a vehicle which can improve stability of the engine during the slow speed rotation of the engine through prompt entry into failure mode by changing a condition of the failure determination according to the state of the engine and thereby minimizing the failure determining time of the engine.

REFERENCES:
patent: 4255789 (1981-03-01), Hartford et al.
patent: 4570594 (1986-02-01), Egami et al.
patent: 5678521 (1997-10-01), Thompson et al.

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