Controller of engine

Details Controller of engine Controller of engine

2009-02-12

2010-11-09

Solis, Erick (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406460, C123S406470

Reexamination Certificate

active

07827960

ABSTRACT:
A controller of an engine that can use a blended fuel with alcohol blended therein, the controller includes: an ignition timing controller, operable to control an ignition timing of the engine; an exhaust air-fuel ratio detector, operable to detect an exhaust air-fuel ratio of the engine; a concentration detector, operable to detect concentration of the alcohol in the blended fuel; an operation state detector, operable to detect an operation state of the engine; and a corrector, when the operation state which is detected by the operation state detector is a high-speed, high-load operation state, as the concentration of the alcohol which is detected by the concentration detector is higher, operable to control an injection amount which is injected from a fuel injection valve to correct a target equivalence ratio more in a lean direction, and operable to correct the ignition timing which is controlled by the ignition timing controller more to a spark advance side.

REFERENCES:
patent: 4408582 (1983-10-01), Merrick
patent: 4993386 (1991-02-01), Ozasa et al.
patent: 5050555 (1991-09-01), Mitsumoto
patent: 5233959 (1993-08-01), Kojima
patent: 7581528 (2009-09-01), Stein et al.
patent: 2006/0102146 (2006-05-01), Cohn et al.
patent: 5-33748 (1993-02-01), None

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