Lean burn control system for internal combustion engine

Details Lean burn control system for internal combustion engine Lean burn control system for internal combustion engine

1993-05-18

1994-06-14

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123695, F02D 4114

Patent

active

053200802

ABSTRACT:
In a lean burn control system for an internal combustion engine, when surging in the engine is caused due to lowering of an engine lean limit, a first correction circuit decreases a target air-fuel ratio irrespective of whether the system is operated under an open loop control or a feedback control. On the other hand, when the surging is caused due to variation in output characteristic of an air-fuel ratio monitoring sensor, a second correction circuit decreases the target air-fuel ratio only when the system is operated under the feedback control. Accordingly, the target air-fuel ratio as corrected by the first correction circuit is used in the open loop control, while the target air-fuel ratio as corrected by the first and second correction circuits is used in the feedback control.

REFERENCES:
patent: 4653451 (1987-03-01), Kobayashi et al.
patent: 4825838 (1989-05-01), Osuga et al.

Affiliated with

Also associated with

Rating

Lean burn control system for internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1241038