| 摘要 |
PURPOSE:To improve the exhaust characteristic of a Diesel engine to provide optimum injection timing, by providing a detection means for detecting the speed of variation in the opening degree of an accelerator, and by a hold means for holding the fuel injection timing for a predetermined time. CONSTITUTION:A step S4 the speed of variation theta' in the opening degree of an accelerator is calculated. Upon acceleration the control of compensation for injection timing is carried out in the direction of spark advance through steps S6 through S10. When an accelerator is not rapidly closed, at step S13 the duty ratio of a control signal to obtain optimum injection timing in accor dance with the operating condition of the engine. When the accelerator is rapidly closed, a countermeasure to a delay in response is controlled through steps S14 through S16. With this arrangement it is possible to improve the exhaust characteristic of the engine and to obtain optimum injection timing. |
