Fuel supply control method for internal combustion engines after

Details Fuel supply control method for internal combustion engines after Fuel supply control method for internal combustion engines after

1987-11-13

1988-10-18

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123491, F02D 4114

Patent

active

047779241

ABSTRACT:
After starting of an internal combustion engine, a quantity of fuel to be supplied to the engine is increased by the use of a fuel increment, and at the same time a period of time is counted which elapses from the time an oxygen concentration sensor has its internal resistance decreased below a predetermined value. When the period of time counted exceeds a predetermined period of time, the increase of the quantity of fuel is terminated and simultaneously calculation of a correction value responsive to oxygen concentration in exhaust gases sensed by the sensor is started, and the quantity of fuel is corrected by means of the correction value calculated. A temperature in the engine intake system is sensed, and the above predetermined period of time is to a larger value as the sensed intake system temperature is higher.

REFERENCES:
patent: 4399792 (1983-08-01), Otsuka et al.
patent: 4505246 (1985-03-01), Nakajima et al.

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