| 摘要 |
PURPOSE:To inrease the power upon acceleration and improve the followability of the acceleration by providing an acceleration detector for detecting the engine acceleration conditions, and the acceleration corrector for increasing a highest supercharge pressure to more than the set value by the output signal of the acceleration detector. CONSTITUTION:When an engine assumes an acceleration driving state, an acceleration detector 16 produces an acceleration detection signal to a timer 15. Then, the timer 15 turns ON a switch 17, and opens a solenoid valve 14 to open a supercharge pressure relief passage 13. Therefore, a part of the supercharge pressure introduced through a pressure passage 12 to the pressure chamber 11e of a waste gate valve 11 is relieved to the upstream of a blower 3 through a relief passage 13, and the supercharge pressure acting on the valve 11 is lowered. The valve opening pressure of the vavle 11, that is, the highest supercharge pressure is corrected to a large value apparently, and the supercharge pressure to the engine 1 is increased. Thus, the acceleration function of the engine can be increased. |
