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公开(公告)号：US20230139991A1
公开(公告)日：2023-05-04
申请号：US17915674
申请日：2021-04-09
Applicant: GREAT WALL MOTOR COMPANY LIMITED
Inventor： Maiqing WU , Shengbo WANG , Lei LI , Zhiwei LIU , Yang HAO , Gengnan ZHANG , Linxiao WANG , Yazhou SHEN , Mingwang ZHOU , Yanlong GENG
Abstract: The present disclosure provides a method and system for determining a pure electric available power and a vehicle, the method being applied to a vehicle including a fuel cell, the vehicle further including a battery pack and a motor, the fuel cell and the battery pack being electrically connected to the motor, wherein the method includes: monitoring a current travelling state of the vehicle and a current on-off state of the fuel cell; acquiring a maximum peak power outputted by the motor, a maximum output power of the battery pack and a starting-up power of the fuel cell; and according to the current travelling state, the current on-off state of the fuel cell, the maximum peak power, the maximum output power and the starting-up power, determining the pure electric available power. The present disclosure may quickly determine the pure electric available power, without complicated logical operation, and the operation states of the vehicle, the fuel cell system, the motor and the battery pack are taken into consideration at a same time, whereby the determined pure electric available power is closer to the actual available power.
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公开(公告)号：US20230034887A1
公开(公告)日：2023-02-02
申请号：US17790290
申请日：2021-04-28
Applicant: GREAT WALL MOTOR COMPANY LIMITED
Inventor： Maiqing WU , Lei LI , Na LU , Yang HAO , Mingwang ZHOU
Abstract: A method for determining a remaining range of a vehicle, including: determining a remaining range of the vehicle driven depending on a current residual energy of a power battery, determining a remaining range of the vehicle driven depending on a current residual energy of a fuel cell, and determining a remaining range of the vehicle driven depending on a recuperated energy when an energy recuperation function of the vehicle is activated; and determining the remaining range of the vehicle based on the aforesaid remaining ranges of the vehicle. According to this method of the present disclosure, the remaining range of the vehicle may be accurately reflected, and it is more convenient for a user to schedule a vehicle trip.
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公开(公告)号：US20230173950A1
公开(公告)日：2023-06-08
申请号：US17921935
申请日：2021-05-08
Applicant: GREAT WALL MOTOR COMPANY LIMITED
Inventor： Maiqing WU , Nan ZHANG , Dandan SONG , Haijun SONG , Yang HAO , Chaozhi ZHANG
IPC: B60L58/40 , H01M16/00 , H01M8/04858
CPC classification number: B60L58/40 , H01M8/04925 , H01M16/006 , H01M2250/20 , H01M2250/402
Abstract: A method and system for managing energy of a fuel cell vehicle and a vehicle. The method is applied to a vehicle including a fuel cell, the vehicle further includes a power battery and a motor, the fuel cell and the power battery are electrically connected to the motor, and the method includes: acquiring a required power of the vehicle, a rated output power of the fuel cell and a current energy efficiency of the power battery; and according to at least one of the required power, the rated output power and the current energy efficiency, controlling the power battery to operate, and controlling the fuel cell to supply electric power at the rated output power or stop supplying electric power. In the present disclosure, not only the power battery can operate in the state of a reasonable energy efficiency to the largest extent, but also the fuel cell can always be in the two states of operating at the rated output power or of stopping operating, which prevents the problem that the fuel cell frequently operates at a non-rated output power, which results in a low economic efficiency of the hydrogen fuel and affects the economic efficiency of the entire vehicle.
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