| 摘要 |
PROBLEM TO BE SOLVED: To provide a tractor that automatically changes revolving speed of an engine, a transmission gear ratio of a transmission, and the like by linking them with action of a front loader.SOLUTION: A tractor 10 comprises: an engine 16; a hydraulic pressure stepless transmission 30; a communication control unit 73; and a hydraulic pressure pump. The communication control unit 73 controls revolving speed of the engine 16 and a transmission gear ratio of the hydraulic pressure stepless transmission 30. The hydraulic pressure pump operates by using output of the engine 16. A front loader 14 for performing lift drive of a bucket by using pressure oil from the hydraulic pressure pump can be connected to the tractor 10. The communication control unit 73 is connected to the front loader 14 through a CAN; and performs control of changing both of the revolving speed of the engine 16 and the transmission gear ratio of the hydraulic pressure stepless transmission 30 by receiving, through the CAN, a content of operation performed to a joystick 26. |
