Idling speed feedback control method for internal combustion engines

Patent · Tue Feb 03 04:00:00 EST 1987

OSTI ID:6813556

Koike, Y; Koike, A; Ueno, M

A method is described of controlling the operating amount of a control valve for regulating the quantity of intake air being supplied to an internal combustion engine, in a feedback manner responsive to the difference between a desired idling speed and an actual engine speed while the engine is in a predetermined idling region. The engine has a generator driven for supplying electric power to at least one electrical device in dependence upon the operative states of the electrical device. The method comprises: (1) detecting the value of a signal indicative of generating conditions of the generator; (2) determining a correction value for the operating amount of the control valve in dependence upon the value of the signal thus detected; (3) correcting the operating amount of the control valve by means of the correction value thus determined; and (4) setting an initial value of the operating amount of the control valve which is applied at the start of the feedback control to a sum of a value obtained by correcting the correction value by a predetermined increment, and a predetermined reference value, when the engine has entered the predetermined idling region immediately after deceleration thereof.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4640244
• OSTI ID: 6813556
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ACCELERATION
AIR FLOW
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
CORRECTIONS
ENGINES
EQUIPMENT
FEEDBACK
FLOW REGULATORS
FLUID FLOW
GAS FLOW
HEAT ENGINES
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
SIGNALS
SPEED REGULATORS
VALVES
VELOCITY