Apparatus for measuring the dwell of an automotive ignition syst

Details Apparatus for measuring the dwell of an automotive ignition syst Apparatus for measuring the dwell of an automotive ignition syst

1976-03-31

1978-02-14

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

F02P 1700

Patent

active

040741834

ABSTRACT:
An apparatus for measuring the dwell of an automobile ignition system is disclosed. The dwell measuring apparatus is applicable to conventional and solid state ignition systems. The apparatus analyzes the primary coil ignition waveform and generates a signal proportional to the dwell ratio, based upon the amount of time the primary voltage is approximately zero.

REFERENCES:
patent: B495331 (1976-03-01), Johnston et al.
patent: 3870947 (1975-03-01), Fields
patent: 3921062 (1975-11-01), Kuhn et al.
patent: 3984760 (1976-10-01), Maringer

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