公开(公告)号：US12276079B2

公开(公告)日：2025-04-15

申请号：US18710308

申请日：2022-12-27

Applicant: KOMATSU LTD.

Inventor： Takeshi Yoshikawa ,  Hiroaki Takeshima ,  Naoya Akiyama ,  Shinichi Otaka ,  Kazushi Nakata ,  Osamu Yatsuda

IPC: E02F3/04 ,  E02F3/84 ,  E02F9/02 ,  E02F9/20 ,  E02F9/22 ,  F15B13/06 ,  F15B15/18 ,  E02F3/76

Abstract: A crawler-type work machine includes left and right steering brakes configured to brake left and right output shafts, a turning motor configured to produce a rotation speed difference between the left and right output shafts, work implement cylinders configured to drive a work implement attached to a vehicle body, a hydraulic pressure supply unit configured to supply hydraulic fluid to the turning motor and the work implement cylinders, and a controller configured to control the hydraulic pressure supply unit. The controller is configured to execute a hydraulic fluid amount control in order to reduce the hydraulic fluid amount supplied from the hydraulic pressure supply unit to the turning motor when the work implement cylinders are driven while the turning motor is rotating.