Engine control device

Details Engine control device Engine control device

2006-01-24

2006-01-24

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S406180

Reexamination Certificate

active

06990405

ABSTRACT:
An engine control device is provided to reliably detect an abnormality in crank pulses. The device determines that there is an abnormality in crank pulses when the situation, in which a standard pitch crank pulse counter T does not reach a prescribed value T0between irregular pitch crank pulses (interval abnormality), repeatedly occurs at least a prescribed value CNT0times, when an irregular pitch is not detected for a prescribed period of time for the crank pulse counter T to count up to TMAXor longer, or when the situation, in which a prescribed number or more of clank pulses are not detected for a prescribed period of time, repeatedly occurs at least a count-up value KMAXof times.

REFERENCES:
patent: 4788956 (1988-12-01), Suzuki et al.
patent: 6840224 (2005-01-01), Tanabe et al.
patent: 2001/0010218 (2001-08-01), Yamazaki et al.
patent: 63-61754 (1988-03-01), None
patent: 04-194345 (1992-07-01), None
patent: 8-30889 (1996-01-01), None
patent: 10-227252 (1998-08-01), None
patent: PCT/JP03/04665 (2003-07-01), None

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