| 摘要 |
PURPOSE:To enhance stability of operation of a vehicle in which auxiliary air is supplied to an engine at the rate controlled by a control valve according to the deviation between an aimed idling speed and an actual idling speed, by correcting the control value of said control valve to increase the same according to the electric load of the engine. CONSTITUTION:An air passage 8 communicated with an air cleaner 7 is connected to an intake pipe 3 at the portion thereof located on the downstream side of a throttle valve 9, and a control valve 6 for controlling the quantity of auxiliary air having a solenoid 6a controlled by an ECU5 is disposed at a portion of said air passage 8. The control valve 6 is controlled by the ECU5 according to the deviation between an aimed idling speed obtained from the output of a throttle-valve opening sensor 17 and an actual idling speed obtained from an engine-speed sensor 14. When electric apparatuses 15a-15c such as head lights, a room fan, etc. are set into operation by turning on respective switches 16a-16c and an AC motor 20 is also set into operation, the control value of the control valve 16 is increased to compensate drop of the engine speed. |
