Method of detecting the number of revolutions of internal combus

Details Method of detecting the number of revolutions of internal combus Method of detecting the number of revolutions of internal combus

1986-03-21

1988-05-17

Lall, Parshotam S.

Boots, shoes, and leggings

364565, 364569, 73119A, G05B 1500

Patent

active

047455543

ABSTRACT:
The present invention relates to a method of detecting the number of revolutions of an internal combustion engine. Utilizing the presence of a certain multiple relationship between the period of a top dead-center signal and the period of a cylinder discrimination signal, the present invention is constructed so that, with respect to clock signals to be counted for detecting the number of revolutions, between the period of a clock signal used when using the top dead-center signal and the period of a clock signal used when using the cylinder discrimination signal there exists a multiple relationship which is the same as the multiple relationship between the period of the top dead-center signal and that of the cylinder discrimination signal.

REFERENCES:
patent: 4197767 (1980-04-01), Leung
patent: 4395905 (1983-08-01), Fujimori et al.
patent: 4434470 (1984-02-01), Thomas et al.
patent: 4566069 (1986-01-01), Hirayama et al.
patent: 4578755 (1986-03-01), Quinn et al.

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