US 12,330,621 B2
Battery energy management method and device for hybrid vehicle, and machine-readable storage medium
Zhimin Hu, Baoding (CN); Bao Liu, Baoding (CN); Wentao Hou, Baoding (CN); Leiguang Tong, Baoding (CN); Guixian Guo, Baoding (CN); and Fei Zheng, Baoding (CN)
Assigned to Great Wall Motor Company Limited, Hebei (CN)
Appl. No. 18/013,362
Filed by GREAT WALL MOTOR COMPANY LIMITED, Baoding (CN)
PCT Filed Aug. 19, 2021, PCT No. PCT/CN2021/113461
§ 371(c)(1), (2) Date Dec. 28, 2022,
PCT Pub. No. WO2022/037632, PCT Pub. Date Feb. 24, 2022.
Claims priority of application No. 202010837547.2 (CN), filed on Aug. 19, 2020.
Prior Publication US 2023/0303056 A1, Sep. 28, 2023
Int. Cl. B60W 20/10 (2016.01); B60L 58/12 (2019.01)
CPC B60W 20/10 (2013.01) [B60L 58/12 (2019.02)] 10 Claims
OG exemplary drawing
 
1. A battery energy management method for a hybrid vehicle, comprising:
acquiring, for a vehicle usage circulation, a historical cutoff remaining state of charge value and a historical maximum power demand, wherein one vehicle usage circulation is a circulation from a last charging completion to a next charging starting;
predicting a next cutoff remaining state of charge value according to the historical cutoff remaining state of charge value;
predicting, according to the historical maximum power demand, a lower limit value of a next remaining state of charge threshold for switching from a power consumption mode to a power holding mode;
determining a larger one of the predicted next cutoff remaining state of charge value and the lower limit value of the remaining state of charge threshold as a next remaining state of charge threshold for switching from the power consumption mode to the power holding mode;
sending, to the hybrid vehicle, the determined next remaining state of charge threshold for switching from the power consumption mode to the power holding mode;
receiving the next remaining state of charge threshold for switching from the power consumption mode to the power holding mode determined by a server; and
controlling the switching from the power consumption mode to the power holding mode based on the next remaining state of charge threshold.