Title:
HYDRAULIC SYSTEM FAULT LOCATING METHOD AND APPARATUS, STORAGE MEDIUM, AND OPERATION MACHINERY
Document Type and Number:
WIPO Patent Application WO/2024/051089
Kind Code:
A1
Abstract:
A hydraulic system fault locating method, comprising: determining maximum output power of a power system and maximum output power of a hydraulic system, and according to respective size relationships between the maximum output power of the power system and a preset power threshold, and between the maximum output power of the hydraulic system and the preset power threshold, determining whether to perform a health test on the hydraulic system; when determined to perform a health test on the hydraulic system, determining a hydraulic efficiency index of the hydraulic system, the hydraulic efficiency index comprising a single-action efficiency index and a compound-action efficiency index; when the single-action efficiency index is smaller than a corresponding preset single-action target efficiency index, determining a loop fault corresponding to a single action; when the compound-action efficiency index is less than a corresponding preset compound-action target efficiency index, determining a loop fault corresponding to a compound action. A fault of the hydraulic system can be located more accurately by means of power comparison and the hydraulic efficiency index. In addition, further disclosed are a hydraulic system fault locating apparatus, a storage medium storing a computer program that uses the locating method, and operation machinery which comprises the hydraulic system fault locating apparatus and which performs the hydraulic system fault locating method.
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Inventors:
JIN HEDIAN (CN)
ZHU CHAO (CN)
ZHU XIAOGUANG (CN)
YUAN AIJIN (CN)
YAN XIN (CN)
LUO JIANHUA (CN)
ZHU CHAO (CN)
ZHU XIAOGUANG (CN)
YUAN AIJIN (CN)
YAN XIN (CN)
LUO JIANHUA (CN)
Application Number:
PCT/CN2023/076163
Publication Date:
March 14, 2024
Filing Date:
February 15, 2023
Export Citation:
Assignee:
SHANGHAI HUAXING DIGITAL TECHNOLOGY CO LTD (CN)
International Classes:
F15B19/00
Foreign References:
| CN115596737A | 2023-01-13 | |||
| CN110219859A | 2019-09-10 | |||
| CN102338137A | 2012-02-01 | |||
| CN106151170A | 2016-11-23 | |||
| CN109898592A | 2019-06-18 | |||
| CN110886743A | 2020-03-17 | |||
| CN111536103A | 2020-08-14 | |||
| KR20140048375A | 2014-04-24 | |||
| US20130313048A1 | 2013-11-28 |
Other References:
ZHONG, CHENTIAN: "Common failure Analysis and Troubleshooting for Excavator Hydraulic System", SCIENCE & TECHNOLOGY INFORMATION, BEIJING GUOJI KEJI FUWU ZHONGXIN, CN, vol. 22, 3 August 2007 (2007-08-03), CN , pages 33 - 34, XP009553642, ISSN: 1672-3791, DOI: 10.16661/j.cnki.1672-3791.2007.22.047
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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