Control system for internal combustion engines

摘要

A control system for an internal combustion engine (1) estimates an amount of fuel adhering to the inner surface of the intake passage (2), as well as an amount of fuel evaporated from fuel adhering to the inner surface of the intake-passage (2) and carried into the combustion chambers, determines an amount of supply fuel to be supplied to the engine (1), based upon operating conditions of the engine (1), the estimated adherent fuel amount, and the estimated carried-off fuel amount, and supplies the determined supply fuel amount into the intake passage (2). The control system corrects the estimated adherent fuel amount and the estimated carried-off fuel amount, in response to an amount of auxiliary air supplied to the fuel injection valves (6).