Title:
FAULT DIAGNOSIS METHOD FOR HYDRAULIC SYSTEM, CONTROL METHOD FOR VEHICLE DRIVING SYSTEM, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/041624
Kind Code:
A1
Abstract:
A fault diagnosis method for a hydraulic system, a control method for a vehicle driving system, and a vehicle, which relate to the technical field of vehicle control, and aim to solve the technical problem of fault diagnosis for a hydraulic system. The fault diagnosis method comprises: acquiring an actual oil pressure outputted by an oil pump unit, the maximum oil pressure threshold and the minimum oil pressure threshold; determining whether the actual oil pressure is greater than the maximum oil pressure threshold or whether the actual oil pressure is less than the minimum oil pressure threshold; and if the actual oil pressure is greater than the maximum oil pressure threshold, determining that clogging occurs in a hydraulic system; or if the actual oil pressure is less than the minimum oil pressure threshold, determining that leakage occurs in the hydraulic system. Fault diagnosis for a hydraulic system is thus achieved, and the accuracy of fault determination for the hydraulic system is improved, thereby facilitating the safe driving of a vehicle.
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Inventors:
GONG WENTAO (CN)
LI JIQIANG (CN)
BI LU (CN)
XU SHILONG (CN)
REN CHUANWEI (CN)
LI XIAOLONG (CN)
SHEN YONG (CN)
LI JIQIANG (CN)
BI LU (CN)
XU SHILONG (CN)
REN CHUANWEI (CN)
LI XIAOLONG (CN)
SHEN YONG (CN)
Application Number:
PCT/CN2023/114836
Publication Date:
February 29, 2024
Filing Date:
August 25, 2023
Export Citation:
Assignee:
XPT EDS HEFEI CO LTD (CN)
International Classes:
B60W50/02; B60L15/20
Foreign References:
| CN115303292A | 2022-11-08 | |||
| CN104442800A | 2015-03-25 | |||
| CN112433151A | 2021-03-02 | |||
| CN113357032A | 2021-09-07 | |||
| JP2016070488A | 2016-05-09 |
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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