Document Type and Number:
Japanese Patent JPS644062
Kind Code:
B2
Abstract:
An intake pipe of an internal combustion engine is formed with an air passageway so as to bypass a throttle valve portion and an air control valve to control the amount of the air flowing through this passageway is provided for this air passageway. This control valve is constituted so as to drive an actuator in accordance with the amount of an exciting current and thereby to control the amount of the air which flows through this passageway. An exciting coil of this control valve is heated and controlled by the cooling water of the internal combustion engine. When the internal combustion engine is in the idle operation state and also in the feedback control state, the temperature of the cooling water is detected. In the case where this temperature falls within a specified range, a correction value of a control amount for feedback control to allow the present rotating speed of the internal combustion engine to approach the idle objective rotating speed is calculated and stored. A control amount for open loop control subsequent to this feedback control state is calculated on the basis of this correction value stored.
Inventors:
TAKAO MITSUNORI
KIMURA TAKAHIKO
KIMURA TAKAHIKO
Application Number:
JP7372484A
Publication Date:
January 24, 1989
Filing Date:
April 11, 1984
Export Citation:
Assignee:
NIPPON DENSO CO
International Classes:
F02D41/16; F02D31/00; F02D35/00; F02D41/00; F02M3/07
Next Patent: プリント回路基板接続用電気コネクタ