Device for generating a reference signal corresponding to a give

Details Device for generating a reference signal corresponding to a give Device for generating a reference signal corresponding to a give

1980-07-03

1982-06-22

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

G01M 1500

Patent

active

043355994

ABSTRACT:
A reference signal corresponding to a predetermined state in the operation of a four-cycle internal combustion engine and especially an internal combustion engine with an odd number of cylinders, is produced by combining the pulses from a pulse generator responding to the position of the crankshaft and emitting an indicator signal with a signal generator, e.g. of the Hall generator type, which emits an H signal during a first angle range of the cam shaft which rotates at one half the speed of the crankshaft and a zero signal during the second angle range with the positions of the first angle range and the second angle range so selected that the indicator signal alternately appears during the H and zero signal. An AND gate receiving both sets of signals generates the reference signal at its output when the input is coincidentally triggered by both an indicator signal and an H signal.

REFERENCES:
patent: 3625054 (1971-12-01), Vesper et al.
patent: 4156411 (1979-05-01), Crall et al.
patent: 4258324 (1981-03-01), Henrich

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