초록 ▼

A control system for an internal combustion engine comprises a transducer for issuing a signal representative of combustion pressure in a combustion chamber, a unit consisting of a bandpass filter and a wave-form shaping circuit for issuing a signal representative of existing combustion timing of th

A control system for an internal combustion engine comprises a transducer for issuing a signal representative of combustion pressure in a combustion chamber, a unit consisting of a bandpass filter and a wave-form shaping circuit for issuing a signal representative of existing combustion timing of the combustion chamber by processing the signal from the transducer for detection of rapid increase of the combustion pressure; a reference timing circuit for issuing a signal representative of a predetermined reference combustion timing of the combustion chamber in accordance with operation modes of the engine, a comparator circuit for issuing a signal representative of a difference between the signal from the unit and the signal from the reference timing circuit, and a unit consisting of a discriminating circuit and an actuator driving circuit for controlling the ignition timing, the air-fuel ratio of air-fuel mixture and the amount of exhaust gas recirculated into the intake system of the engine, by processing the signal from the comparator circuit.

대표청구항 ▼

A control system for an internal combustion engine, comprising: first means for issuing a signal representative of combustion pressure in a combustion chamber of said engine; second means for issuing a signal representative of existing combustion timing of said combustion chamber by processing said

A control system for an internal combustion engine, comprising: first means for issuing a signal representative of combustion pressure in a combustion chamber of said engine; second means for issuing a signal representative of existing combustion timing of said combustion chamber by processing said signal from said first means for detection of rapid increase of the combustion pressure; a reference timing circuit for issuing a signal representative of a predetermined reference combustion timing of said combustion chamber in accordance with operation modes of said engine; a comparator circuit for issuing a signal representative of a difference between the signal from said second means and the signal from said reference timing circuit; and third means for controlling at least one of engine operating parameters consisting of the ignition timing, the air-fuel ratio of air-fuel mixture fed to said engine and the amount of exhaust gas recirculated into an intake system of said engine, by processing the signal from said comparator circuit.