Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1988-07-25
1989-09-12
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Fuel injection system
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.
Dolinar Andrew M.
Toyota Jidosha & Kabushiki Kaisha
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