公开(公告)号：US10059372B2

公开(公告)日：2018-08-28

申请号：US15511069

申请日：2016-11-02

Applicant: KOMATSU LTD.

Inventor： Atsushi Sasada ,  Hiroaki Takeshima ,  Osamu Takatori

IPC: B60W10/02 ,  B62D11/08 ,  B60T17/22 ,  B60W10/06 ,  B60W10/196 ,  B60W50/02 ,  E02F9/20 ,  E02F9/26 ,  E02F9/22

CPC classification number: B62D11/08 ,  B60T8/00 ,  B60T17/22 ,  B60W10/06 ,  B60W10/196 ,  B60W50/0205 ,  B60W2050/021 ,  B60W2300/17 ,  B60W2710/0644 ,  E02F3/76 ,  E02F9/2066 ,  E02F9/2083 ,  E02F9/226 ,  E02F9/26 ,  E02F9/268

Abstract: A bulldozer is provided with left and right steering brakes that brake the rotations of left and right drive wheels, and a control unit for hydraulically controlling the braking state of the respective left and right steering brakes. The control unit executes protection processing on the left steering brake or the right steering brake when a state of the degree of engagement of the left steering brake or the right steering brake being within a predetermined range and the vehicle speed being equal to or greater than a predetermined vehicle speed continues for a predetermined time.