| 摘要 |
<p>A range-type transmission comprising: a flow path switching valve that switches the flow path supplying hydraulic fluid to a hydraulic chamber in an actuator, which changes the speed of a sub transmission, in accordance with the state of supply of control fluid to a control port; a switching lever that controls the supply of the control fluid to the control port for the flow path switching valve; an open/close valve that opens/closes the supply path for the control fluid to the control port; and a control unit. The control unit controls the open/close valve so as to open/close the supply path for the control fluid in accordance with the properties of the flow path switching valve, when the rotation speed of an output shaft for the sub transmission is greater than a prescribed value.</p> |
