System and method for controlling ignition timing for internal c

Details System and method for controlling ignition timing for internal c System and method for controlling ignition timing for internal c

1990-04-19

1991-09-24

Argenbright, Tony M.

Internal-combustion engines

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

123425, F02P 515

Patent

active

050505556

ABSTRACT:
A system and method for controlling ignition timing for a lean burn type internal combustion engine in which alcohol is mixed with gasoline. A final ignition timing value ADV is determined from a basic ignition timing value BASE, a feedback correction quantity .DELTA..sub.1, plus a second correction quantity .DELTA..sub.2, the basic ignition timing value being derived for conventional fuel (gasoline) on the basis of the operating conditions of an engine having a driving region in which the engine is driven with a lean air/fuel mixture ratio. The second correction quantity, .DELTA..sub.2, is derived according to an estimated value of a percentage R of mixture of an alternative fuel (alcohol) to the conventional fuel (gasoline).

REFERENCES:
patent: 4640249 (1987-02-01), Kawamura et al.
patent: 4660535 (1987-04-01), Asano
patent: 4905649 (1990-03-01), Washino et al.

Affiliated with

Also associated with

Rating

System and method for controlling ignition timing for internal c does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for controlling ignition timing for internal c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for controlling ignition timing for internal c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1690286