US 11,951,827 B2
Work vehicle
Tsuyoshi Gono, Osaka (JP); Naoya Nihei, Osaka (JP); Keiji Takahashi, Osaka (JP); Susumu Takeoka, Osaka (JP); Shusaku Yamaguchi, Osaka (JP); and Yoichi Sugihara, Osaka (JP)
Assigned to KUBOTA CORPORATION, Osaka (JP)
Filed by KUBOTA CORPORATION, Osaka (JP)
Filed on May 27, 2022, as Appl. No. 17/826,855.
Application 17/826,855 is a continuation of application No. PCT/JP2020/047949, filed on Dec. 22, 2020.
Claims priority of application No. 2019-239897 (JP), filed on Dec. 27, 2019.
Prior Publication US 2022/0281315 A1, Sep. 8, 2022
Int. Cl. B60K 17/06 (2006.01); B60K 17/10 (2006.01); B60K 23/02 (2006.01); B62D 49/06 (2006.01); F16H 59/54 (2006.01); F16H 61/4035 (2010.01); F16H 61/431 (2010.01)
CPC B60K 17/06 (2013.01) [B60K 17/10 (2013.01); B60K 23/02 (2013.01); B62D 49/06 (2013.01); F16H 59/54 (2013.01); F16H 61/4035 (2013.01); F16H 61/431 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A work vehicle comprising:
a vehicle body provided with a travel device;
a continuously variable transmission including a hydraulic pump having a swash plate that changes an output in accordance with a swash-plate angle, and a travel motor having an output shaft whose rotation speed changes in accordance with the output of the hydraulic pump and being capable of transmitting power of the output shaft to the travel device;
a travel operation member operable to a forward position to cause the vehicle body to travel forward, a reverse position to cause the vehicle body to travel backward, and a neutral position to keep the vehicle body from traveling forward or backward;
a clutch mechanism that switches a driving force having been speed-changed by the continuously variable transmission on the basis of an operation of the travel operation member among the forward position, the reverse position, and the neutral position;
a brake that brakes the travel device;
a brake operation member whose operation causes a braking action of the brake; and
a controller that determines a neutral target value of a driving force output from the continuously variable transmission while the travel operation member is held at the neutral position and the travel device is stationary while braked by the brake, and that changes the neutral target value in accordance with an operation amount of the brake operation member.