Control system for internal combustion engine

Details Control system for internal combustion engine Control system for internal combustion engine

2008-07-22

2008-07-22

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

C123S435000, C123S478000, C701S104000, C701S105000

Reexamination Certificate

active

07401591

ABSTRACT:
A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel into a combustion chamber of the engine and burning the injected fuel by compression ignition. A fuel injection control parameter for controlling at least one fuel injection valve is changed. A combustion state of the engine is then detected. A cetane number of the fuel is then estimated based on the changed fuel injection control parameter and the detected combustion state.

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