Engine combustion control responsive to location and magnitude o

Details Engine combustion control responsive to location and magnitude o Engine combustion control responsive to location and magnitude o

1986-12-29

1987-11-17

Dolinar, Andrew M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123435, F02D 4300

Patent

active

047066288

ABSTRACT:
A combustion control for an internal combustion engine adjusts ignition timing and A/F ratio to even the torque pulses of the individual cylinders as well as adjust LPP toward a desired value (DLPP). The crank angle (LPP) and magnitude (MPP) of peak combustion pressure is sensed for each cylinder and the average MPP for all cylinders (AMPP) is derived. Ignition timing is trimmed, within a first limit, in response to LPP to attempt to maintain DLPP. MPP is compared with AMPP and, if it is too low, ignition timing is trimmed in the advance direction to a second limit, which is preferably larger than the first. Only if the MPP trim of ignition timing is at maximum advance, or if MPP is too high, is A/F ratio adjusted, with MPP trim of ignition reset to zero. Thus, fuel consumption is minimized as the cylinder torques are balanced.

REFERENCES:
patent: 3957023 (1976-05-01), Peterson
patent: 3977373 (1976-08-01), Sand
patent: 4063538 (1977-12-01), Powell et al.
patent: 4153019 (1979-05-01), Laubenstein et al.
patent: 4391248 (1983-07-01), Latsch
patent: 4406265 (1983-09-01), Brandt et al.
patent: 4556030 (1985-12-01), Aono
patent: 4561401 (1985-12-01), Hata et al.
patent: 4598680 (1986-07-01), Lanfer
patent: 4601197 (1986-07-01), Fattic et al.
patent: 4621603 (1986-11-01), Matekunas

Affiliated with

Also associated with

Rating

Engine combustion control responsive to location and magnitude o 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 combustion control responsive to location and magnitude o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine combustion control responsive to location and magnitude o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1443161