Control apparatus of internal combustion engine

Details Control apparatus of internal combustion engine Control apparatus of internal combustion engine

2008-02-28

2011-11-08

Wolfe, Jr., Willis (Department: 3747)

Internal-combustion engines

Charge forming device

Including cylinder pressure or temperature responsive means

C123S575000, C073S114380

Reexamination Certificate

active

08051836

ABSTRACT:
An internal combustion engine (1) is provided with an in-cylinder pressure sensor (15) for detecting an in-cylinder pressure in a combustion chamber (3) and an ECU (20). The ECU20calculates a heat release quantity parameter showing a combustion state based upon a detected in-cylinder pressure, calculates a combustion delay based upon the detected in-cylinder pressure, and determines fuel property based upon a comparison between a calculated heat release quantity parameter and the calculated combustion delay; and a heat release quantity parameter and a combustion delay corresponding to reference fuel.

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