Method of correcting air-fuel ratio for atmospheric pressure in

Details Method of correcting air-fuel ratio for atmospheric pressure in Method of correcting air-fuel ratio for atmospheric pressure in

1987-01-21

1987-11-24

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123412, 123478, F02D 4134

Patent

active

047081155

ABSTRACT:
An amount of fuel to be supplied to an internal combustion engine is determined in dependence upon operating conditions of the engine and is corrected by a correction variable dependent upon atmospheric pressure. The correction variable is set so as to increase with a decrease in atmospheric pressure, and the set value of the correction variable is modified so as to decrease with a rise in the engine rotational speed. The correction variable resulting from this modification is added to the amount of fuel to be supplied to the engine to correct the same.

REFERENCES:
patent: 4271797 (1981-06-01), McCarbery
patent: 4481929 (1984-11-01), Hasegawa
patent: 4590563 (1986-05-01), Matsumura et al.

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