Idling rpm feedback control method for internal combustion engin

Details Idling rpm feedback control method for internal combustion engin Idling rpm feedback control method for internal combustion engin

1984-03-05

1985-07-02

Lall, Parshotam S.

Internal-combustion engines

Engine speed regulator

Idle speed control

123327, 123585, F02M 300

Patent

active

045261440

ABSTRACT:
A method of controlling a control valve that regulates the quantity of supplementary air being supplied to an internal combustion engine, in a feedback manner responsive to the difference between actual engine rpm and desired idling rpm at idling of the engine. During deceleration of the engine, the control valve is controlled so as to supply the engine with supplementary air at a volumetric flow rate dependent upon a detected value of ambient atmospheric pressure, after the engine has been determined to be in a predetermined operating condition and until the above feedback control is initiated. Preferably, the volumetric flow rate of the supplementary air quantity is set to larger values as the detected value of the atmospheric pressure decreases. The engine is determined to be in the above predetermined operating condition when at least one of conditions is satisfied that the actual engine rpm is smaller than a predetermined value larger than the desired idling rpm, and that the output shaft of the engine is not in engagement with a driven shaft driven by the engine.

REFERENCES:
patent: 4203395 (1980-05-01), Cromas et al.
patent: 4240145 (1980-12-01), Yano et al.
patent: 4337742 (1982-07-01), Carlson et al.
patent: 4378766 (1983-04-01), Yamazoe et al.
patent: 4388903 (1983-06-01), Yoshida et al.
patent: 4418665 (1983-12-01), Nagase
patent: 4438744 (1984-03-01), Hasegawa
patent: 4450824 (1984-05-01), Ando et al.

Affiliated with

Also associated with

Rating

Idling rpm feedback control method for internal combustion engin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Idling rpm feedback control method for internal combustion engin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Idling rpm feedback control method for internal combustion engin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-375909