Fuel injection control system for engine

Details Fuel injection control system for engine Fuel injection control system for engine

1994-01-27

1995-12-05

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123682, F02M 5100

Patent

active

054719631

ABSTRACT:
A fuel injection control system for an engine includes fuel injection valves, each of which injects fuel to one cylinder a plurality of times during each cycle. The system has an arithmetic device for calculating a required fuel injection amount based on driving conditions and a trailing side injection capability of a trailing side injection time point, a determination device for comparing the required fuel injection amount with the trailing side injection capability and determining which is greater, and a fuel injection controller for setting a leading side injection time point and a trailing side injection time point and setting a leading side injection amount and a trailing side injection amount. The fuel injection controller carries out a fuel injection only at the trailing side injection time point when the required fuel injection amount is not greater than the trailing side injection capability and divides the fuel injection between a fuel injection at the leading side injection time point and a fuel injection at the trailing side injection time point when the required fuel injection amount is greater than the trailing side injection capability.

REFERENCES:
patent: 5136517 (1992-08-01), Cullen et al.
patent: 5159914 (1992-11-01), Follmer et al.
patent: 5209205 (1993-05-01), Auracher et al.
patent: 5337719 (1994-08-01), Togai
patent: 5347974 (1994-09-01), Togai et al.

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