| 摘要 |
PURPOSE:To prevent an engine from a great change of the number of revolutions by providing a load control means for receiving the output of an idling detecting means and making the load working to an air conditioner and the like during idling work gradually to the engine. CONSTITUTION:When an idling state of operation is decided by an idling decision circuit 14 on the basis of signals A and B from an idling switch 7 and a revolution sensor 8, a drive circuit 17 is operated by an idling signal D. Then an actuator 6 is controlled to control the opening degree of a throttle valve via the drive circuit 17 in accordance with the deviation in a comparison circuit 16 to compare the revolution number signal B with a target idling number signal E. At this stage, when a cooler switch 12 is thrown in, since an idling time contact 18c is closed by the said signal D in a relay 18 in a load control circuit 13, the load signal E is inputted into an electromagnetic clutch 10 via a delay circuit 19, and a compressor is gradually connected to an engine. |
