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Title:
CHARGING AND DISCHARGING CONTROL METHOD FOR HIGH-VOLTAGE BATTERY, AND DEVICE FOR SAME
Document Type and Number:
WIPO Patent Application WO/2021/036750
Kind Code:
A1
Abstract:
A charging and discharging control method for a high-voltage battery of a hybrid vehicle, and a device for the same. The method comprises: determining a state-of-charge value of a high-voltage battery of a hybrid vehicle and a desired state-of-charge value; controlling a charging and discharging mode of the high-voltage battery on the basis of the state-of-charge value of the high-voltage battery or a difference between the state-of-charge value of the high-voltage battery and the desired state-of-charge value; and controlling, on the basis of the charging and discharging mode of the high-voltage battery and a vehicle parameter, a charging current or a discharging current of the high-voltage battery. The invention controls, on the basis of a parameter of a high-voltage battery of a hybrid vehicle, a charging and discharging mode of the high-voltage battery, and uses different charging and discharging policies for different charging and discharging modes, thereby achieving precision control with various stages, enabling vehicles to be more economical, and having a wide application range for various types of hybrid vehicles.

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Inventors:
QIAN CHAO (CN)
ZHANG NAN (CN)
LI LEI (CN)
LIU BAO (CN)
SONG DANDAN (CN)
SUN ZHAOLUE (CN)
SONG HAIJUN (CN)
Application Number:
PCT/CN2020/107838
Publication Date:
March 04, 2021
Filing Date:
August 07, 2020
Export Citation:
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Assignee:
GREAT WALL MOTOR CO LTD (CN)
International Classes:
B60L58/13; B60L58/25; H01M10/42; H01M10/44
Foreign References:
CN106143482A2016-11-23
CN103419614A2013-12-04
CN106143467A2016-11-23
CN105517868A2016-04-20
CN107342619A2017-11-10
JP2007269207A2007-10-18
CN201910796910A2019-08-27
Other References:
See also references of EP 4011688A4
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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