Idle speed control using alternator

Details Idle speed control using alternator Idle speed control using alternator

2006-05-02

2006-05-02

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S339160, C123S339230, C290S04000F

Reexamination Certificate

active

07036484

ABSTRACT:
An engine system includes an engine, an alternator, a load, and a controller that communicates with the engine, the alternator, and the load. The controller signals the engine to drive the alternator when the engine idles. When a load increase on the engine is detected, the controller reduces an alternator load on the engine in response to the load increase. Air flow into the engine is adjusted to compensate for the load increase, and concurrently the alternator load is increased. When a load decrease is detected, the alternator load is increased, and the air flow is subsequently adjusted while decreasing the alternator load. In another embodiment, spark timing of the engine is adjusted to compensate for the load decrease.

REFERENCES:
patent: 4520272 (1985-05-01), Danno et al.
patent: 5111788 (1992-05-01), Washino
patent: 5712786 (1998-01-01), Ueda
patent: 6109237 (2000-08-01), Pels et al.
patent: 6378492 (2002-04-01), Liu
patent: 3222825 (1991-10-01), None

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