Engine control apparatus

Details Engine control apparatus Engine control apparatus

2011-06-28

2011-06-28

Kwon, John T (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Combination igniting means and injector

C123S299000, C123S305000, C701S105000

Reexamination Certificate

active

07966989

ABSTRACT:
An engine control apparatus controls changeover of a combustion mode in an engine in which each cylinder has an injector that can perform fuel injection a predetermined number of times for each cylinder combustion. A control unit controls fuel injection and ignition timing from a spark plug. Upon combustion mode changeover from a first combustion mode, in which fuel injection is performed at least once for each cylinder combustion, to a second combustion mode, in which fuel injection is performed a greater number of times with a larger intake air volume than the first combustion mode, the control unit performs the steps of changing in the first combustion mode a target intake air volume required in the second combustion mode; retarding the ignition timing; changing to the second combustion mode; and further retarding the ignition timing.

REFERENCES:
patent: 6058906 (2000-05-01), Yoshino
patent: 6167863 (2001-01-01), Kazama et al.
patent: 6390063 (2002-05-01), Obata et al.
patent: 7689344 (2010-03-01), Kang et al.
patent: 2005-155498 (2005-06-01), None

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