Method and apparatus for control of the start-up air-fuel ratio

Details Method and apparatus for control of the start-up air-fuel ratio Method and apparatus for control of the start-up air-fuel ratio

1994-02-01

1995-11-28

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

F02M 5100

Patent

active

054698278

ABSTRACT:
The air/fuel ratio of an intake mixture of an internal combustion engine becomes excessively rich due to fuel leaked from the fuel injection valve into the intake system during a period from shut-down until restart. To overcome the resultant poor starting, the amount of leakage is estimated based on the engine temperature at shut down, and an elapsed time from shut-down until restart which is determined for example based on a difference between the engine shut-down temperature and the engine temperature at restart. The start-up fuel injection amount or the start-up intake flow rate is then corrected corresponding to this leakage amount.

REFERENCES:
patent: 5188082 (1993-02-01), Udo et al.
patent: 5199394 (1993-04-01), Hartmann et al.
patent: 5215062 (1993-06-01), Asano et al.
patent: 5224456 (1993-07-01), Hosoda et al.
patent: 5289808 (1994-03-01), Takahashi et al.
patent: 5365917 (1994-11-01), Adams et al.

Affiliated with

Also associated with

Rating

Method and apparatus for control of the start-up air-fuel ratio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for control of the start-up air-fuel ratio , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for control of the start-up air-fuel ratio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2006196