Title:
TRACTION BATTERY PROTECTION CONTROL METHOD AND SYSTEM, AND RAIL TRANSIT VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/035713
Kind Code:
A1
Abstract:
Disclosed are a traction battery protection control method and system, and a rail transit vehicle. A voltage value of a traction battery is monitored in real time; when the voltage of the traction battery reaches or is lower than a protection voltage, a locomotive actively reduces the traction power, and the purpose of reducing the discharge current is achieved by sacrificing part of the traction power of the whole vehicle; in this case, partial high-power traction limitation may occur, but current may still be discharged. When the discharge current is finally zero, the traction battery stops working. In the present invention, under the condition that the traction battery is protected from being over-discharged, the traction battery is fully used for discharging, thereby increasing the utilization rate of the traction battery, effectively improving the endurance capability of the traction battery locomotive or engineering vehicle, realizing maximization of energy utilization of the traction battery, reducing unnecessary energy consumption, and significantly improving the economy of the vehicle.
Inventors:
QIN QINGMIN (CN)
LIU HUA (CN)
ZHANG PENG (CN)
HU RUNWEN (CN)
LI JING (CN)
HUANG XUANTAO (CN)
LIU HUA (CN)
ZHANG PENG (CN)
HU RUNWEN (CN)
LI JING (CN)
HUANG XUANTAO (CN)
Application Number:
PCT/CN2022/098846
Publication Date:
March 16, 2023
Filing Date:
June 15, 2022
Export Citation:
Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO LTD (CN)
International Classes:
B60L58/14; B61C3/02
Foreign References:
| CN113799653A | 2021-12-17 | |||
| CN110065394A | 2019-07-30 | |||
| CN107139740A | 2017-09-08 | |||
| CN113291204A | 2021-08-24 | |||
| CN107985090A | 2018-05-04 | |||
| CN110509814A | 2019-11-29 | |||
| US20120242289A1 | 2012-09-27 |
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (CN)
Download PDF: