| 摘要 |
PURPOSE:To prevent the generation of knock without harming control response and reduce power shock by performing delay correction only at the time of judging the engine load to be in the high load state over the specified value upon detecting the accelerating state. CONSTITUTION:A control unit 50 inputs the analog output of an intake pressure sensor 26 and the like into a microcomputer 54 through a level converting circuit 52. In the microcomputer 54, the output of the level converting circuit 52 is converted into the digital value by an A/D converting circuit 54a according to the command of a CPU 54c and then stored temporarily in a RAM 54e, and also the output of a crank angle sensor 40 and the like is inputted through a waveform shaping circuit 56 and an I/O 54b. The output of a knock sensor 44 is further inputted into a knock detecting circuit 60. The CPU 54c determines the final ignition timing and commands ignition to an ignition device 70 via an output circuit 68. In this case, a delay process is performed only when the actual load state is in the load state over the specified value. |
