| 摘要 |
PROBLEM TO BE SOLVED: To suitably perform automatic transmission of a main transmission by an accelerator pedal during traveling on a road regardless of the weight of a working vehicle. SOLUTION: In the transmission of the working vehicle having a shifting clutch device B, a switching clutch C and a sub transmission D in a transmission case, the shifting clutch device B and switching clutch C can be automatically shifted, a sub transmission detection means 147 detecting a shift position of the sub transmission D is provided, and the shifting clutch device B and switching clutch C are automatically controlled to be shifted in a plurality of stages by operation of the accelerator pedal 173 when the sub transmission detecting means 147 detects the road traveling shift position, and a plurality of shift areas H1 and H2 are provided in the plurality of shift stages of combination of the shifting clutch device B with the switching clutch C, and the shift areas H1 and H2 can be suitably selected. COPYRIGHT: (C)2011,JPO&INPIT |
