US 12,337,907 B2
Valve system, work machine, method for controlling valve, program, and recording medium
Yuita Takenaka, Tokyo (JP); and Yuichi Teranishi, Tokyo (JP)
Assigned to KOMATSU LTD., Tokyo (JP)
Appl. No. 17/628,278
Filed by KOMATSU LTD., Tokyo (JP)
PCT Filed Sep. 14, 2020, PCT No. PCT/JP2020/034792
§ 371(c)(1), (2) Date Jan. 19, 2022,
PCT Pub. No. WO2021/065455, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 2019-180490 (JP), filed on Sep. 30, 2019.
Prior Publication US 2022/0266898 A1, Aug. 25, 2022
Int. Cl. B62D 5/09 (2006.01); B62D 12/00 (2006.01); B62D 6/02 (2006.01)
CPC B62D 5/091 (2013.01) [B62D 12/00 (2013.01); B62D 6/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A valve system comprising:
a valve configured to adjust a flow rate of hydraulic fluid in order to steer a work machine; and
a control section configured to determine a command signal sent to the valve, the command signal determining a command flow rate of the hydraulic fluid based on
a target flow rate corresponding to an input operation command and
a change amount in the target flow rate,
the control section being configured to control a change amount in the command flow rate according to a magnitude of a reversal operation command when receiving the reversal operation command in order to operate the work machine in a direction opposite to a direction in which steering is operating.