公开(公告)号：US20230226952A1

公开(公告)日：2023-07-20

申请号：US18010404

申请日：2021-11-05

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Maiqing WU ,  Dandan SONG

IPC: B60L58/30 ,  B60L15/20 ,  B60L7/18

CPC classification number: B60L58/30 ,  B60L7/18 ,  B60L15/2009 ,  H01M2250/20

Abstract: A method for determining a coasting torque, a storage medium, and a computer program are provided, this method includes: obtaining operating parameters of an electric vehicle when a fuel cell system of the electric vehicle is out of operation and the electric vehicle enters a coasting state; determining a theoretical recovery torque and a correction torque of the electric vehicle according to the operating parameters, where the correction torque includes an additional torque of the fuel cell system; and correcting the theoretical recovery torque according to the correction torque to obtain the coasting torque of the electric vehicle. The coasting torque is used for energy recovery of the electric vehicle during a coasting process of the electric vehicle.

公开(公告)号：US20240239353A1

公开(公告)日：2024-07-18

申请号：US18013762

申请日：2022-01-13

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Maiqing WU ,  Gang YAN ,  Xu SHI ,  Xuejing LI ,  Dandan SONG ,  Shengbo WANG ,  Nan ZHANG ,  Chunmei ZHANG

IPC: B60W40/12 ,  B60L3/12 ,  B60L58/12 ,  B60W50/00

CPC classification number: B60W40/12 ,  B60L3/12 ,  B60L58/12 ,  B60W50/0097 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2260/54 ,  B60W2050/0025 ,  B60W2050/0044 ,  B60W2530/18

Abstract: The embodiments of the present application provide a method and an apparatus for predicting an average energy consumption of an electric vehicle. The method comprises: according to a real-time voltage and a real-time current of a battery pack of an electric vehicle, determining an actual energy consumption of the electric vehicle in the traveled mileage segment corresponding to the current time, the traveled mileage segment comprising a plurality of unit mileage segments; according to the actual energy consumption of each unit mileage segment of the traveled mileage segment, determining an initial average energy consumption of the electric vehicle at the current time; acquiring a target average energy consumption and average energy consumption adjustment parameters of the electric vehicle; and according to the initial average energy consumption, the target average energy consumption and the average energy consumption adjustment parameters, determining the actual average energy consumption of the electric vehicle at the current time. The present application can accurately calculate the actual average energy consumption of the electric vehicle at the current time in real time.

公开(公告)号：US20230271530A1

公开(公告)日：2023-08-31

申请号：US17918148

申请日：2021-04-23

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Maiqing WU ,  Lei LI ,  Zhiwei LIU ,  Dandan SONG ,  Haijun SONG ,  Leiming DU

IPC: B60L58/27 ,  B60L58/34 ,  B60L58/40 ,  H01M10/625 ,  H01M10/657 ,  H01M16/00 ,  H01M10/633

CPC classification number: B60L58/27 ,  B60L58/34 ,  B60L58/40 ,  H01M10/625 ,  H01M10/633 ,  H01M10/657 ,  H01M16/006 ,  B60L2240/545

Abstract: A method for heat preservation of a battery of a vehicle by feeding electric power is provided. This method includes: determining an expected vehicle usage time after charging of the battery of the vehicle has been completed and an expected activation time of a function of heating by feeding electric power for heating the battery; and controlling, when the expected activation time is reached, the vehicle to activate the function of heating by feeding electric power according to a current temperature of the battery and the expected vehicle usage time in order that the current temperature of the battery reaches a safety temperature upper threshold to complete heat preservation for the battery. According to the method in the present disclosure, an influence of low temperature on the battery will be avoided, and a waste of electric energy caused due to continuous heating of the battery may be avoided.

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.