Air-fuel ratio control system for internal combusion engines

Details Air-fuel ratio control system for internal combusion engines Air-fuel ratio control system for internal combusion engines

1992-09-16

1993-10-19

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123679, 123680, 123687, 123689, F02D 4114, F02D 4116

Patent

active

052536300

ABSTRACT:
An air-fuel ratio control system for an internal combustion engine controls the air-fuel ratio of a mixture supplied to the engine to a desired air-fuel ratio in response to an output from an exhaust gas ingredient concentration sensor. A first value of the desired air-fuel ratio is calculated based on the rotational speed of the engine and the load on the engine. A second value of the desired air-fuel ratio is calculated based results of determination on whether a vehicle on which the engine is installed has just started from a standing position thereof. A third value of the desired air-fuel ratio is calculated based on results of determination on whether the temperature of the engine is lower than a predetermined value. The largest value of at least the first to third values of the desired air-fuel ratio is set to a final value of the desired air-fuel ratio.

REFERENCES:
patent: 4156413 (1979-05-01), Taplin
patent: 4169440 (1979-10-01), Taplin et al.
patent: 4452207 (1984-06-01), Moore, Jr.
patent: 4509489 (1985-04-01), Hasegawa et al.
patent: 4572135 (1986-02-01), Nakajima et al.
patent: 4644921 (1987-02-01), Kobayashi et al.
patent: 4719888 (1988-01-01), Kobayashi et al.
patent: 5014668 (1991-05-01), Klenk et al.
patent: 5033440 (1991-07-01), Kumagai et al.

Affiliated with

Also associated with

Rating

Air-fuel ratio control system for internal combusion engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air-fuel ratio control system for internal combusion engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-fuel ratio control system for internal combusion engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1345480