Method and apparatus for determining cylinder #1 power firing ev

Details Method and apparatus for determining cylinder #1 power firing ev Method and apparatus for determining cylinder #1 power firing ev

1986-12-15

1989-01-03

Scott, J. R.

Electricity: measuring and testing

Internal-combustion engine ignition system or device

With analysis of displayed waveform

123643, F02P 1700

Patent

active

047959797

ABSTRACT:
A method of determining the cylinder #1 power firing event in a wasted spark ignition system comprises developing a first signal comprising the integration of all power firing event signals, a second signal comprises the integration of all wasted firing event signals and comparing the amplitudes of the two signals to determine which represents the power firing events. The firing event signals are sorted for integration based upon knowledge of the polarity of spark plug firings, the cylinder firing order and the occurrence of a #1 cylinder firing event signal.

REFERENCES:
patent: 4396888 (1983-08-01), Everett et al.

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