公开(公告)号：US20240308333A1

公开(公告)日：2024-09-19

申请号：US18533267

申请日：2023-12-08

Applicant: KUBOTA CORPORATION

Inventor： Tomoya KATSUURA ,  Yuichiro MATOBA ,  Shigeru KOMATSU ,  Kazuya OKUBO

IPC: B60K25/02 ,  B60K25/06 ,  B62D5/06 ,  B62D5/07 ,  B62D49/06 ,  F15B15/20 ,  F15B21/0423 ,  F16H47/02 ,  F16H63/30

CPC classification number: B60K25/02 ,  B60K25/06 ,  B62D5/063 ,  B62D5/07 ,  B62D49/06 ,  F15B15/20 ,  F15B21/0423 ,  F16H47/02 ,  F16H63/3023 ,  B60K2025/026 ,  F16H2047/025

Abstract: A working vehicle includes a first hydraulic pump (e.g., a variable displacement pump) with a delivery flow rate controlled by load sensing control, a second hydraulic pump (e.g., a fixed displacement pump), at least one working-machine-related control valve to control at least one working-machine-related hydraulic actuator, a power shift valve to control at least one traveling-power-transmission-related hydraulic actuator, and a power steering controller to control a steering-related hydraulic actuator. The at least one working-machine-related control valve is provided in a first hydraulic system supplied with hydraulic fluid by the first hydraulic pump, and at least one of the power shift valve or the power steering controller is provided in a second hydraulic system supplied with hydraulic fluid by the second hydraulic pump.