| 摘要 |
PURPOSE:To prevent a fuel from being oversupplied, by performing asynchronous injection at a predetermined time interval in accordance with the number of times of asynchronous injection set on the basis of engine temperature (and an accelerating condition), in a system wherein asynchronous injection of performed in accordance with an accelerating condition. CONSTITUTION:In a system wherein a fuel injection valve 7 is operated to inject a fuel asynchronously when a controlling circuit 61 detects an engine accelerating condition from a time differential value of the pressure in an intake pipe detected by an intake pipe pressure sensor 11, a time differential value of the opening of a throttle valve detected by a throttle valve position sensor 2 or the like during operation of the engine, the number N of times of nonsynchronous injection which is set in accordance with cooling water temperature or with cooling water temperature and an accelerating condition when an accelerating condition is detected and which is set to be larger as the cooling water temperature is lower is read out from a predetermined map. The asynchronous injection is repeated at a predetermined time interval until the number N of times of asynchronous injection is exceeded. Accordingly, the fuel can be prevented from being oversupplied, without degrading operating performance at the time of acceleration. |
