| 摘要 |
PURPOSE:To carry out switching between advance and retreat and increase and reduce the car speed only by operating an accelerating pedal by obtaining an accelerating pedal into an advance/retreat swing type and connecting the accelerating pedal to a control circuit for power shift speed change gear. CONSTITUTION:The oil pumped up through a strainer 10 from an oil tank 9 by a pump 8 is sent under pressure into a pressure rising valve 12 through a flow rate control valve 11. The oil is sent into an advance/retreat selecting valve 7, and a reverse speed change clutch 13 is selected to advance or retreat by ON/OFF-selecting a solenoid 7a, and the oil is returned into the oil tank 9. A control circuit 5 senses the stepping-in quantity of an accelerating pedal 2 by the change of the swing angle of an accelerating pedal 2, and the signal for increasing and reducing the revolution speed is sent to the revolution speed control mechanism for an engine 6. |
