Fuel injection system of an internal combustion engine

Internal-combustion engines – Charge forming device – Fuel injection system

Patent

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Details

123480, 123494, 36443105, 36443111, F02D 4114, F02D 4126

Patent

active

048649988

ABSTRACT:
A fuel injection system of an internal combustion engine in which the fuel injection amount is controlled corresponding to an atmospheric pressure change by utilizing an altitude compensating learning correction factor stored in a backup RAM. Even thought a battery is disconnected from the memory of the backup RAM and the stored data of the learning correction factor is lost, the altitude compensating learning correction factor is directly determined based on the atmospheric pressure without executing learning control so that the fuel injection amount is corrected at the time of the initial cranking of the engine.

REFERENCES:
patent: 4497297 (1985-02-01), Daniel et al.

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