US 12,115,825 B2
Work vehicle and controller for work vehicle
Shinya Yamada, Sakai (JP)
Assigned to KUBOTA CORPORATION, Osaka (JP)
Filed by KUBOTA CORPORATION, Osaka (JP)
Filed on Nov. 15, 2022, as Appl. No. 17/986,939.
Claims priority of application No. 2021-186896 (JP), filed on Nov. 17, 2021.
Prior Publication US 2023/0150330 A1, May 18, 2023
Int. Cl. B60G 17/016 (2006.01); B60G 17/015 (2006.01); B60G 17/0195 (2006.01); B60G 17/08 (2006.01); B62D 49/08 (2006.01); B62D 49/06 (2006.01)
CPC B60G 17/0162 (2013.01) [B60G 17/0152 (2013.01); B60G 17/0195 (2013.01); B60G 17/08 (2013.01); B62D 49/08 (2013.01); B60G 2202/24 (2013.01); B60G 2204/62 (2013.01); B60G 2300/082 (2013.01); B60G 2400/0513 (2013.01); B60G 2400/052 (2013.01); B60G 2400/0523 (2013.01); B60G 2400/41 (2013.01); B60G 2400/60 (2013.01); B60G 2400/97 (2013.01); B60G 2500/30 (2013.01); B60G 2600/182 (2013.01); B60G 2800/914 (2013.01); B62D 49/06 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A work vehicle comprising:
a vehicle body;
running gear to cause the vehicle body to travel;
a linkage via which an implement is linked to the vehicle body;
a height adjuster to change a height of a center of gravity of the vehicle body; and
a controller configured or programmed to, in accordance with at least one of a turning radius and an angular velocity of the vehicle body during a turn, control the height adjuster to maintain or lower the height of the center of gravity; wherein
the controller is configured or programmed to:
control the height adjuster to lower the center of gravity when a state of a small turn where the turning radius is smaller than a reference radius is entered during a turn, and if the height of the center of gravity is higher than a reference height;
change at least one of an amount of lowering the center of gravity and the reference height, in accordance with at least one of the turning radius, the angular velocity, and a weight of the work vehicle; and
change at least one of the amount of lowering the center of gravity, the reference height, and the reference radius, in accordance with a type of the implement or a presence or an absence of the implement.