Diagnostic apparatus for internal combustion engine ignition sys

Details Diagnostic apparatus for internal combustion engine ignition sys Diagnostic apparatus for internal combustion engine ignition sys

1981-09-08

1983-08-30

Krawczewicz, Stanley T.

Electricity: measuring and testing

Internal-combustion engine ignition system or device

324 60C, 324388, 324390, F02P 1700

Patent

active

044019483

ABSTRACT:
A diagnostic apparatus for an internal combustion engine ignition system measures the rise of the secondary voltage at the ignition coil represented by time lapse between initiation of the secondary voltage rising and occurrence of break and the ignition coil primary breaking current value. Results of the measurement are computed to determine stray capacitance existing in the internal combustion engine ignition system and secondary voltage.

REFERENCES:
patent: 3771047 (1973-11-01), Spengler et al.
patent: 3921062 (1975-11-01), Kuhn et al.
patent: 3984768 (1976-10-01), Staples
patent: 4112351 (1978-09-01), Back et al.

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