Marine engine control

Details Marine engine control Marine engine control

1998-05-18

2000-08-08

Kwon, John

Internal-combustion engines

Engine speed regulator

Idle speed control

12340652, 12340665, F02M 300

Patent

active

060985917

ABSTRACT:
A number of embodiments of engine control for marine application wherein the engine is called upon to operate for long periods at speeds substantially below normal idling speed. This is encountered when trolling. The arrangement includes a system for substantially retarding the spark to assist in shifting and also to maintain stability when running at these low speeds. Adjustments may be made in air flow and fuel supply amounts so as to further augment the smooth running and avoid stalling under these trolling conditions. Various control routines for achieving appropriate ignition timing under the widely varying instantaneous speeds during trolling are also disclosed.

REFERENCES:
patent: 4872436 (1989-10-01), Schultes
patent: 5012779 (1991-05-01), Fukui et al.
patent: 5133319 (1992-07-01), Ikeda et al.
patent: 5450828 (1995-09-01), Sakamoto et al.
patent: 5588409 (1996-12-01), Mizuno et al.

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