| 摘要 |
PURPOSE:To prevent a connecting shock from occurring, by opening a throttle valve at a speed of more than the specified one via engine speed at the time of disengagement of the clutch installed in a drive shaft of a supercharger, and engaging the clutch when throttle valve is fully opened. CONSTITUTION:A supercharger 4 to be driven by an engine is installed in a suction passage 12 at the downstream side of a compressor 6 of a turbocharger 3, and a bypass passage 20 is connected to the suction passage 12 so as to bypass this supercharger 4, then a bypass valve 21 is installed in this passage 20. In an drive shaft of the supercharger 4, there is provided with an electromagnetic clutch 14 which intermits power being inputted from the engine via a belt 13. This electromagnetic clutch 14 is controlled by a control unit 33, but at the time of release of the clutch 14, the throttle valve 17 is opened at a speed of more than the specified one in relation to engine speed, and when the throttle valve 14 is fully opened, the electromagentic clutch 14 is controlled so as to be connected. |
