Method to control auto-ignition in an internal combustion...

Details Method to control auto-ignition in an internal combustion... Method to control auto-ignition in an internal combustion...

2006-11-07

2006-11-07

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406290

Reexamination Certificate

active

07131425

ABSTRACT:
A method and control system to accomplish knock control on a multi-cylinder spark-ignition internal combustion engine equipped variable cam phasing system, comprising monitoring cam position, crankshaft position, and, engine knock signal, determining cam position relative to crankshaft position, and implementing either a global cylinder knock control strategy or an individual cylinder knock control strategy, based upon whether the determined cam position relative to crankshaft position is near a default position, the determined cam position indicates the variable cam phasing system is operating in a transient mode, or, the determined cam position relative to crankshaft position is substantially different from the default position.

REFERENCES:
patent: 5520145 (1996-05-01), Nagai et al.
patent: 6769404 (2004-08-01), Aoyama et al.
patent: 6910461 (2005-06-01), Tanei et al.
patent: 2004/0237917 (2004-12-01), Yasui et al.
patent: 2005/0000480 (2005-01-01), Yasui et al.

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