| 摘要 |
PURPOSE:To reduce a knocking action of an engine and improve its combustion quality, by detecting the knocking action in the engine with a turbosupercharger and correcting its ignition timing and air-fuel ratio at occurrence of the knocking action. CONSTITUTION:In an engine 1 provided with a turbosupercharger 2 a vibration sensor 20 for detecting a knocking action is provided to input its signal to a control unit 16. While each of signals from an air flow sensor 9, throttle valve switch 17, water temperature sensor 18 and O2 sensor 19 is input to the unit 16. Then at a high speed highly loaded state of the engine 1, ignition timing of a spark plug 25 is corrected by the switch 17 and the like through an igniter 22, ignition coil 23 and distributor 24, simultaneously at the other state of engine operation an injection amount from a fuel injection valve 21 is corrected by the unit 16. Thus as a result a supercharge rate from the turbosupercharger 2 can be decreased. |
