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U.S. Department of Energy
Office of Scientific and Technical Information

Method of feedback-controlling idling speed of internal combustion engine

Patent ·
OSTI ID:7123683

This patent describes an idling speed feedback control method for use with an internal combustion engine having electrical load equipment and a generator for supplying electric power to the electrical load equipment, the generator being driven by the engine. An idling speed feedback control amount is effected as a function of the difference between an actual engine speed and a target idling speed. The method comprises the steps of detecting a generating state signal representing the generating state of the generator; determining an electrical load correction value as a function of the detected generating state signal; and determining the amount of charge of the electrical load correction value during a time period starting at or before the time when the electrical load correction value changes and ending at the time at or after the electrical load correction value changes. The method further comprises modifying the electrical load correction value in accordance with the magnitude of the amount of the change, and correcting the idling speed feedback control amount as a function of the modified electrical load correction value.

Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo
Patent Number(s):
US 4633093
OSTI ID:
7123683
Country of Publication:
United States
Language:
English