| 摘要 |
PURPOSE:To eliminate depression of torque in time of selecting a speed from low to high, by continuously controlling the opening of a control valve in an interconnecting passage according to the engine speed. CONSTITUTION:In time of controlling a control valve 24 in an interconnecting passage 22 which interconnects a first suction passage 14 to a second suction passage 16, a control circuit 31 controls the valve 24 so as to secure such a torque characteristic as being made into flatness having no torque depression. That is to say, in the case where these characteristics A and B with both full open and close positions in the control valve 24 are linked together, if an engine speed in a point D, which becomes a trough of torque, is set down to N, while the engine speed in a point F of the characteristic A in which this torque is securable, to N2, an interval between these engine speed N1 and N2 is set to a control range whereby the control valve 24 is gradually opened from the full close of the engine speed N2 and then set to the full open with the engine speed N1. With this constitution, a flattened torque characteristic can be secured. |
