| 摘要 |
PURPOSE:To secure a good combustion stability by changing the set value of opening degree of a throttle valve to a low opening degree side to increase the flow speed of suction air and promote the atomization of fuel when an engine is cold. CONSTITUTION:Outputs of an accelerator position sensor 16, a brake position sensor 18, a water temperature sensor 20, an engine revolving number sensor 21, a throttle position sensor 23 and an airflow meter 24 are inputted into a control means 25. The control means 25 receives the output of the water temperature sensor 20 and changes the set value of opening degree of throttle valve to a low opening degree side when the engine is cold. As a result, the flow speed of the suction air may be increased by the choking of the suction air, the atomization of the fuel may be promoted and the stability of combustion may be brought into a good condition. |
