Ion current detection apparatus for an internal combustion engin

Details Ion current detection apparatus for an internal combustion engin Ion current detection apparatus for an internal combustion engin

1998-05-01

2000-06-13

Brown, Glenn W.

Electricity: measuring and testing

Internal-combustion engine ignition system or device

Electronic ignition system

324388, 324464, 73 3508, 73116, F02P 1712

Patent

active

060753668

ABSTRACT:
An ion current detection apparatus for an internal combustion engine includes a voltage limiting device for limiting an amount of counterelectromotive force of a primary coil of ignition coil applied to switching elements, a capacitor for applying an ion current detection voltage to a spark plug, and an ion current detection circuit for detecting an ion current wherein the capacitor is connected to the voltage limiting device.

REFERENCES:
patent: 5534781 (1996-07-01), Lee et al.
patent: 5548220 (1996-08-01), Kawamoto et al.
patent: 5781012 (1998-07-01), Yasuda
patent: 6011397 (2000-01-01), Yasuda

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