Working vehicle, a control method for a working vehicle, and method of calibrating sensors swash plate of the hydraulic pump in a working vehicle

摘要

PROBLEM TO BE SOLVED: To provide a working vehicle having an effect of accurately detecting swash plate angle of a hydraulic pump, a control method of the working vehicle, and a useful method for calibrating a swash plate sensor of the hydraulic pump in the working vehicle.;SOLUTION: In the working vehicle, hydraulic pumps 31 and 32 are changed in discharge capacity of working oil by changing the angles of swash plates 41 and 46. A pair of hydraulic motors 34 and 35 is driven by the working oil discharged from the hydraulic pumps 31 and 32. A lateral pair of traveling devices is driven respectively by the hydraulic motors 34 and 35. An operation device 60 is operated by an operator to control the output of the traveling devices. Swash plate angle sensors 53 and 54 detect the angles of the swash plates 41 and 46. A pump controller 52 performs calibration of maximum angle using the angle of the swash plate 41 detected by the swash plate angle sensor 53 or the angle of the swash plate 46 detected by the swash plate angle sensor 54 in a state where a maximum output is instructed to one of the traveling devices by the operation device 60.;COPYRIGHT: (C)2010,JPO&INPIT