Systeme de regulation pour moteurs a combustion interne

Control system for internal combustion engines

Abstract

A control system for an internal combustion engine estimates an amount of adherent fuel adhering to the inner surface of the intake passage, as well as an amount of carried-off fuel evaporated from fuel adhering to the inner surface of the intake passage and carried into combustion chambers, determines an amount of supply fuel to be supplied to the engine, based upon operating conditions of the engine, the estimated adherent fuel amount, and the estimated carried-off fuel amount, and supplies the determined supply fuel amount into the intake passage. The control systems corrects the estimated adherent fuel amount and the estimated carried-off fuel amount, in response to an intake parameter which is changeable within the intake passage. The intake parameter includes an amount of evaporative fuel purged, valve operating characteristics of intake valves and/or exhaust valves, an amount of assist air supplied to fuel injection valves.

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