Document Type and Number:
Japanese Patent JPH0159418
Kind Code:
B2
Abstract:
An engine has a main intake passage having a throttle valve therein. A bypass passage is branched off from the main intake passage located upstream of the throttle valve and is connected to the main intake passage located downstream of the throttle valve. A flow control valve, actuated by a stepper motor, is arranged in the bypass passage. The step position of the stepper motor is so controlled that the idling speed becomes equal to a desired speed. When an engine stall takes place and, then, the engine is started again, the step motor is rotated by five steps in a rotating direction wherein the flow area of the flow control valve is increased.
Inventors:
OOKAWA NOBUNAO
ITO HIROSHI
ITO HIROSHI
Application Number:
JP3881A
Publication Date:
December 18, 1989
Filing Date:
January 05, 1981
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD
International Classes:
F02D41/16; F02D31/00; F02D33/00; F02D41/06; F02M69/32
Next Patent: JPH0159419