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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR IDENTIFYING WHEEL SLIP AND COASTING OF VEHICLE, AND DEVICE AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/108976
Kind Code:
A1
Abstract:
A method and apparatus for identifying wheel slip and coasting of a vehicle, and a device and a storage medium, which relate to the technical field of rail vehicle control. The method comprises: determining a first target threshold set and a second target threshold set on the basis of the current traction braking state of a vehicle, the currently output three-phase current and a torque instruction value; determining a first degree of wheel slip and coasting by using the first target threshold set, and determining a second degree of wheel slip and coasting by using the second target threshold set; determining a first weight coefficient on the basis of the number of target wheels which currently meet a preset rotation speed condition, and the accelerations corresponding to the target wheels, and determining a second weight coefficient on the basis of the currently output three-phase current and the change rate of the torque instruction value; and performing calculation on the first degree of wheel slip and coasting and the second degree of wheel slip and coasting by using the first weight coefficient and the second weight coefficient, so as to determine the current wheel slip and coasting state of the vehicle. In this way, subsequent protective control can be provided when a speed sensor is faulty.

Inventors:
WEI NIANWEI (CN)
LI GUOCHENG (CN)
ZHANG WEI (CN)
JIANG TONG (CN)
DU WEIDONG (CN)
Application Number:
PCT/CN2023/099029
Publication Date:
May 30, 2024
Filing Date:
June 08, 2023
Export Citation:
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Assignee:
NEW UNITED RAIL TRANSIT TECH CO LTD (CN)
NEW UNITED GROUP CO LTD (CN)
International Classes:
G07C5/08; G01M17/00
Foreign References:
CN115546928A2022-12-30
CN103231714A2013-08-07
CN113392900A2021-09-14
JP2002281606A2002-09-27
JP2017197019A2017-11-02
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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