Control device for internal combustion engine and method for...

Details Control device for internal combustion engine and method for... Control device for internal combustion engine and method for...

2007-05-01

2007-05-01

Huynh, Hai (Department: 3747)

Internal-combustion engines

Charge forming device

Including cylinder pressure or temperature responsive means

C073S118040

Reexamination Certificate

active

10566604

ABSTRACT:
An internal combustion engine (1) generates power by burning an air-fuel mixture in a combustion chamber (3). The internal combustion engine (1) is provided with an in-cylinder pressure sensor (15) and an ECU (20). The ECU20calculates at two predetermined points control parameters each of which is a product of an in-cylinder pressure detected by the in-cylinder pressure sensor (15) and a value obtained by exponentiating an in-cylinder volume at the time of detecting the in-cylinder pressure by a predetermined index number, as well as determines a misfire condition in the combustion chamber (3) based on the difference component in the control parameters between the two predetermined points.

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