Title:
AGING DETECTION METHOD, AGING DETECTION DEVICE, AND COMPUTER READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/051370
Kind Code:
A1
Abstract:
An aging detection method for an electric drive system. The electric drive system (100) comprises a motor (110), a motor control device (120), and a cooling mechanism for the motor (110) and the motor control device (120). The method comprises the following steps: S100: on the basis of vehicle state parameters, determining whether a vehicle is in a preset working condition; S200: in response to the fact that the vehicle is in the preset working condition, determining an overall aging degree of the electric drive system on the basis of monitored data of the cooling mechanism in a preset time, the monitored data comprising an inlet temperature and an outlet temperature of a cooling medium at the motor control device, an inlet temperature and an outlet temperature of the cooling medium at the motor, and a cooling medium flow rate; and S300: in response to the fact that the overall aging degree reaches a preset aging level, determining an aging type according to an aging root cause positioning model, the aging type representing location information of the aging related to each sub-component of the motor and the motor control device. Also provided are an aging detection device for an electric drive system, and a computer readable storage medium.
More Like This:
Inventors:
SUN YONGCHAO (CN)
WANG KAI (CN)
WANG BEI (CN)
WANG KAI (CN)
WANG BEI (CN)
Application Number:
PCT/CN2023/109085
Publication Date:
March 14, 2024
Filing Date:
July 25, 2023
Export Citation:
Assignee:
XPT EDS HEFEI CO LTD (CN)
International Classes:
G01M17/007
Foreign References:
| CN112304635A | 2021-02-02 | |||
| CN107121637A | 2017-09-01 | |||
| CN107433881A | 2017-12-05 | |||
| CN109240253A | 2019-01-18 | |||
| CN114879639A | 2022-08-09 | |||
| JP2005163754A | 2005-06-23 | |||
| US20080055799A1 | 2008-03-06 | |||
| US20110202494A1 | 2011-08-18 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
Download PDF: