Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1982-01-27
1984-04-24
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
Idle speed control
123340, 123179B, 123179G, F02D 104
Patent
active
044441681
ABSTRACT:
An engine speed control method and apparatus employs at least two basic control variable maps comprising a first basic control variable map for determining the desired air flow to an internal combustion engine in accordance with the warming conditions of the engine during the starting period and a second basic control variable map for determining the desired air flow in accordance with the warming conditions of the engine after the starting period, and the maps are used selectively in accordance with the warming conditions of the engine. Upon change-over from the control according to one map to the control according to the other map, the air flow is varied gradually at intervals of predetermined engine revolutions or a predetermined period of time so as to effect the change-over to the control according to the desired map. During the idling operation after the engine has been warmed up sufficiently, the difference between each of the desired idling speeds preliminarily established in correspondence to the operating conditions of the engine and the actual idling speed is detected and the required correction values of the basic control variable for controlling the air flow are computed and stored thereby controlling the idling speed of the engine.
REFERENCES:
patent: 3964457 (1976-06-01), Coscia
patent: 4191051 (1980-03-01), Kawata et al.
patent: 4203395 (1980-05-01), Cromas et al.
patent: 4237833 (1980-12-01), Des Lauriers
patent: 4237838 (1980-12-01), Kinugawa et al.
patent: 4289100 (1981-09-01), Kinugawa et al.
patent: 4344399 (1982-08-01), Matsumura et al.
patent: 4359983 (1982-11-01), Carlson et al.
patent: 4378768 (1983-04-01), Itoh et al.
Matsumura Toshimi
Omori Norio
Nelli Raymond A.
Nippondenso Co. Ltd.
LandOfFree
Engine idling speed control method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine idling speed control method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine idling speed control method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-110686