公开(公告)号：US11760325B2

公开(公告)日：2023-09-19

申请号：US17434788

申请日：2020-09-15

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： Masayuki Fukushi ,  Shinjiro Saito ,  Daiki Tetsuka

IPC分类号： B60T13/14 ,  B60P1/04 ,  B60T17/22

CPC分类号： B60T13/14 ,  B60T17/22 ,  B60T2230/00 ,  B60T2270/40

摘要： Provided is a dump truck capable of performing an actuation test of an emergency brake system at an appropriate timing. The dump truck comprises: front wheel and rear wheel emergency brake systems, each system including an accumulator that accumulates hydraulic oil supplied from a hydraulic pump, a brake device that is actuated by the hydraulic oil supplied from the accumulator, and a solenoid valve that opens and closes a flow path of the hydraulic oil extending from the accumulator to the brake device; and a controller configured to execute front test processing and rear test processing alternately (step S16/step S18) in the case of determining that the dump truck is stopped (step S11: Yes), a vessel is in a fallen position (step S12: YES), and a loading operation onto the vessel is completed (step S15: Yes/step S17: Yes).