Patent ID: 6055948
Filing Date: 2000-05-02
Classification: F01L,F02B,F02D,Y02T

Abstract:
An internal combustion engine control system for controlling an internal combustion engine, comprising:a fuel injection control means for controlling fuel injection quantity to be injected by a fuel supply system for supplying fuel to the internal combustion engine, and fuel injection timing; anda variable valve control means for continuously or gradually varying at least one of opening timing, closing timing or lift of one of an intake valve and an exhaust valve for sealing up a combustion chamber of the internal combustion engine;wherein the fuel injection control means controls at least one of fuel injection quantity and fuel injection timing on the basis of a value of a controlled variable provided by the variable valve control means, further comprising a supercharger disposed in an intake passage, and a knocking sensing means for sensing or estimating knocking in the internal combustion engine,wherein the variable valve control means controls at least one of valve opening timing, valve closing timing and valve lift of the intake valve continuously or gradually on the basis of the result of sensing action of the knocking sensing means to control the compression ratio of the internal combustion engine.