| 摘要 |
PURPOSE:To directly read out the angles of normal revolution and reverse revolution of a throttle valve driving motor from a memory according to the deviation of a revolution speed of an engine at idling from the set value and control the opening of the throttle valve on the basis of the read-out data. CONSTITUTION:A control unit 21 sends valve opening signals P and Q to a throttle valve opening control stepping motor 16 and a choke valve opening control stepping motor 6, respectively to control those rotary positions. Home position switches 22 and 23 detect the home positions of a choke valve 2 and a throttle valve 3, that is, the home positions of motor output levers 8 and 18, respectively and generates the equivalent signals to send them to the control unit 21. The control unit 21 is in the state of being supplied with at least one of the signals of an engine r.p.m., an engine temperature, the atmospheric temperature, and quantity of fuel supply. |
