Measuring and testing – Vehicle chassis – Steering
Patent
1991-09-25
1993-01-12
Myracle, Jerry W.
Measuring and testing
Vehicle chassis
Steering
123414, 324459, G01M 1500
Patent
active
051780011
ABSTRACT:
An ignition apparatus for an internal combustion engine can prevent malfunctions due to noise induced by a high ignition voltage which is developed by an ignition coil upon ignition. Generation of a misfiring detection signal can also be prevented during fuel supply cut-off operations. To these ends, in one aspect, and ignition apparatus includes: a controller for controlling the ignition of a cylinder of the engine in synchronism with the rotation thereof; a detector connected to a spark plug and an ignition coil for detecting an ion current which is generated between the electrodes of the spark plug upon combustion of an air/fuel mixture in the cylinder; and mask a for masking the output signal of the detector in response to discharge of the spark plug. In another aspect, an ignition apparatus includes: a controller for controlling the ignition of and the fuel supply to a cylinder of the engine in synchronism with the rotation thereof; a detector for detecting misfiring in the cylinder; and mask a for masking the output signal of the detector when the fuel supply to the cylinder is cut off.
REFERENCES:
patent: 4262524 (1981-04-01), Russo et al.
patent: 4762106 (1988-08-01), Blauhut
Ikeuchi Masayuki
Murata Shigemi
Mitsubishi Denki & Kabushiki Kaisha
Myracle Jerry W.
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