Internal-combustion engines – High tension ignition system – Safety device
Patent
1993-09-13
1995-03-28
Nelli, Raymond A.
Internal-combustion engines
High tension ignition system
Safety device
F02P 1100
Patent
active
054007607
ABSTRACT:
In a misfire detector device for internal combustion engine, an ignition coil is provided to be on-off actuated by a primary current interruptor circuit, each end of the ignition coil being connected to a spark plug installed in each cylinder of an internal combustion engine. A peak voltage detector circuit detects a peak voltage applied across the spark plug electrodes after an end of spark action of the spark plug. A peak voltage value distinction circuit recognizes a misfire when a voltage level exceeds a predetermined level which is detected by the peak voltage detector means after an end of spark action of the spark plug upon running the internal combustion engine at a high speed. A distinction circuit recognizes a variation of angles detected by the crank angle sensor so as to determine the misfire when the variation of angles exceeds a predetermined value upon running the internal combustion engine at a low speed.
REFERENCES:
patent: 3942102 (1976-03-01), Kuhn et al.
patent: 4827891 (1989-05-01), Miura et al.
patent: 5046470 (1991-09-01), Entenmann et al.
patent: 5159912 (1992-11-01), Klein et al.
patent: 5226394 (1993-07-01), Shimasaki et al.
patent: 5309884 (1994-05-01), Fukui et al.
Ito Yasuo
Miyata Shigeru
Nelli Raymond A.
NGK Spark Plug Co. Ltd.
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