Title:
ダンプトラックのブレーキシステム
Document Type and Number:
Japanese Patent JP6781117
Kind Code:
B2
Abstract:
An automatic brake subsystem (24) includes second accumulators (25F, 25R), a front second line (28) and a rear second line (29), second brake valves (30F, 30R), a first solenoid switching valve (32), first shuttle valves (33F, 33R), and a controller 37. A second solenoid switching valve (34F) and a pressure sensor (35F) are provided in the front second line (28), and a second solenoid switching valve (34R) and a pressure sensor (35R) are provided in the rear second line (29). In a case where it is determined that each of the second brake valve (30F, 30R) is not performing normally based upon a pressure of a hydraulic fluid detected by each of the pressure sensors (35F, 35R) and an operating signal supplied to the first solenoid switching valve (32) or each of the second brake valves (30F, 30R), a controller 37 performs control to switch each of the second solenoid switching valves (34F, 34R).
Inventors:
Takateru Tanaka
Takanobu Ikari
Yasuki Tsuriga
Takayuki Sato
Takashi Sasaki
Takanobu Ikari
Yasuki Tsuriga
Takayuki Sato
Takashi Sasaki
Application Number:
JP2017146503A
Publication Date:
November 04, 2020
Filing Date:
July 28, 2017
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
B60T13/68; B60T7/16; B60T13/14; B60T17/18; F15B20/00; F16K31/06
Domestic Patent References:
| JP2011213347A | ||||
| JP59040161U |
Foreign References:
| US20090309412 |
Attorney, Agent or Firm:
Hirowa Patent Office