Valve control system of internal combustion engines

Details Valve control system of internal combustion engines Valve control system of internal combustion engines

1988-10-03

1990-01-23

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Idle speed control

123585, F02D 4116

Patent

active

048951188

ABSTRACT:
A valve control system of an internal combustion engine has a control circuit comprising valve control quantity setting means for setting the control quantity of valve means installed in the engine in accordance with the operational state of the engine and generating a first actuation signal in accordance with said control quantity and actuating means for actuating said valve means in accordance with said first actuation signal, in which said control circuit comprises: clock oscillation means for generating a check signal shorter than the reaction time of said valve means; synthesizing means for synthesizing said check signal and said first actuation signal and generating a synthesized signal; actuating means converting said synthesized signal into a second actuation signal and a valve actuation state determination signal as outputs, which are transmitted to said valve means; and valve actuation state decision means formed for detecting said valve actuation state determination signal and deciding the actuation state of said valve means.

REFERENCES:
patent: 4488527 (1984-12-01), Pfalzgraf et al.
patent: 4491112 (1985-01-01), Kanegae et al.
patent: 4519360 (1985-05-01), Murakami
patent: 4519361 (1985-05-01), Murakami
patent: 4612615 (1986-09-01), Murakami
patent: 4760824 (1988-08-01), Sakurai
patent: 4760825 (1988-08-01), Morita
patent: 4763623 (1988-08-01), Sasaki
patent: 4765299 (1988-08-01), Wataya et al.
patent: 4771755 (1988-09-01), Asakura et al.

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