公开(公告)号：US20220336873A1

公开(公告)日：2022-10-20

申请号：US17854358

申请日：2022-06-30

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Qing ZHAO ,  Shujiang CHEN

IPC: H01M10/44 ,  H02J7/00 ,  G01R31/382 ,  B60L58/13

Abstract: A method for controlling a lower limit of a state of charge of a power battery and a vehicle is provided. The method provided by the present disclosure includes: detecting a minimum ambient temperature for at least a period of time; predicting a minimum ambient temperature within a preset period of time after the at least a period of time according to the minimum ambient temperature within the at least a period of time; determining, according to the minimum ambient temperature within the preset period of time, a minimum state of charge value that able to meet power requirements for starting an engine of a vehicle under the minimum ambient temperature within the preset period of time; and adjusting a lower limit of the state of charge according to the minimum state of charge value.

公开(公告)号：US20230211694A1

公开(公告)日：2023-07-06

申请号：US17927084

申请日：2021-06-30

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Mingwang ZHOU ,  Shujiang CHEN ,  Qing ZHAO ,  Tong KANG

IPC: B60L53/66 ,  B60L53/16

CPC classification number: B60L53/66 ,  B60L53/16

Abstract: A method and a device for controlling vehicle charging, a program, a medium, and a vehicle is provided. The method by acquiring a current connection state of a telematics box in the vehicle and the server when a charging gun of a vehicle is determined in a connection state; and recording a first duration of the offline state when the current connection state is determined in an offline state, and controlling the vehicle charging according to the first duration. In this way, when it is determined that the current connection state is in the offline state, the vehicle charging can be controlled according to the duration of the offline state, which can effectively avoid the problem of charging failure due to network connection failure during the reservation charging process, the reliability of vehicle reservation charging is improved, and thus the vehicle user experience is effectively improved.

公开(公告)号：US20230202457A1

公开(公告)日：2023-06-29

申请号：US17927048

申请日：2021-06-30

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Tong KANG ,  Shujiang CHEN ,  Qing ZHAO ,  Mingwang ZHOU ,  Di WU ,  Han LIU

IPC: B60W20/20 ,  B60W30/182 ,  B60W10/08 ,  B60W10/06 ,  B60W10/02 ,  B60W10/10

CPC classification number: B60W20/20 ,  B60W30/182 ,  B60W10/08 ,  B60W10/06 ,  B60W10/02 ,  B60W10/10 ,  B60W2520/10 ,  B60W2710/021

Abstract: A method and a device for controlling mode switching of a hybrid electric vehicle, and a vehicle is provided, and belongs to the field of hybrid electric vehicles. The method includes: performing, if the drive state information indicates that a current drive mode of the hybrid electric vehicle is a forward mode of a non-hybrid drive and in a case that a current speed reaches a speed limit, a pre-gear operation when a transmission gear of the hybrid electric vehicle is a neutral gear, to switch the transmission gear from the neutral gear to a second gear. The technical solution provided by the embodiments of the present disclosure can make the hybrid electric vehicle unable to switch to the hybrid drive mode due to the limitation of the ability of synchronizer on gear shifting when driving at a high speed.

公开(公告)号：US20230050845A1

公开(公告)日：2023-02-16

申请号：US17790312

申请日：2021-01-13

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Shuai ZHANG ,  Shujiang CHEN ,  Wentao HOU ,  Qing ZHAO ,  Xiao CHANG ,  Tong KANG ,  Jiaxin SUN ,  Wenchao LING ,  Weifeng DENG

IPC: B60L15/20 ,  B60L7/26 ,  B60T8/26 ,  B60T8/52

Abstract: The method includes: when the vehicle satisfies a one-pedal activating condition, controlling the vehicle to enter a one-pedal-function activating mode; when the vehicle enters the one-pedal-function activating mode and satisfies a parking-controlling-function activating condition, acquiring current-vehicle-speed information, road-slope information and a first electric-motor recovering torque; based on the current-vehicle-speed information and the road-slope information, calculating to obtain a parking torque; acquiring a first torque difference between the parking torque and the first electric-motor recovering torque; and performing pressure buildup to the vehicle based on the first torque difference, to control the vehicle to complete a parking operation.

公开(公告)号：US20220340012A1

公开(公告)日：2022-10-27

申请号：US17754359

申请日：2020-11-23

Applicant: Great Wall Motor Company Limited

Inventor： Qing ZHAO ,  Shujiang CHEN

IPC: B60L3/04 ,  B60L58/26 ,  B60L58/27 ,  B60L58/12 ,  B60L3/00

Abstract: The present disclosure provides a battery pack control method, a system and a vehicle, wherein the vehicle includes a battery sensor, a heating module and a cooling module; when the vehicle is in a powered-off state, a battery sensor is firstly used to detect the current battery temperature value of the battery pack and the current state of the thermostatic control function of the battery pack; and when the current temperature value of the battery pack is out of a preset range and the thermostatic control function of the battery pack opens, the vehicle is waken up, and then the battery pack is thermostatic controlled, so that the temperature of the battery pack is maintained within the preset range, which facilitates the restarting and use of the vehicle.

公开(公告)号：US20230038882A1

公开(公告)日：2023-02-09

申请号：US17790154

申请日：2021-02-25

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Qing ZHAO ,  Shujiang CHEN

IPC: B60W20/13 ,  H01M10/42 ,  H01M10/48 ,  H02J7/00

Abstract: A method for controlling a lower limit of a state-of-charge state of a power battery, and a vehicle are provided, the method includes: detecting, by a detection unit, a minimum ambient temperature and a minimum power battery temperature in at least one time period; evaluating, by an evaluation unit, a minimum power battery temperature in a preset time period after the at least one time period according to the minimum ambient temperature and the minimum power battery temperature in the at least one time period; determining, by a processing unit, a minimum state-of-charge value that meets a start-up power requirement of a vehicle engine at the minimum power battery temperature in the preset time period, and adjusting a lower limit value of the state-of-charge according to the minimum state-of-charge value, in order that the vehicle can be powered-up by a state-of-charge value of the power battery at low temperature environment.

公开(公告)号：US20230029384A1

公开(公告)日：2023-01-26

申请号：US17754367

申请日：2020-11-23

Applicant: Great Wall Motor Company Limited

Inventor： Qing ZHAO ,  Shujiang CHEN

IPC: B60L58/26 ,  B60L58/27 ,  B60L58/12 ,  B60L1/00 ,  B60W20/00 ,  H01M10/615 ,  H01M10/613 ,  H01M10/625 ,  H01M10/635 ,  H01M10/48 ,  H01M10/663 ,  H01M10/6564 ,  H01M10/6568

Abstract: The present disclosure provides a battery pack control method, a system, and a vehicle which are applied to a vehicle having a vehicle-mounted communication terminal, and relates to the technical field of automobiles. Wherein the vehicle includes a heating module and a cooling module; when the vehicle is in a powered-off state, and when a trigger condition of the predetermined timing task is reached, the vehicle is waken up by the vehicle-mounted communication terminal, and then the temperature of the battery pack is controlled so that the temperature of the battery pack is maintained within the preset range, so as to restart and use the vehicle; thus to solve the problems in the prior art that after the vehicle is in a powered-off state, the temperature of the battery pack cannot be controlled using a heat management system, and the temperature of the battery pack is easily too low or too high due to a lower or a higher ambient temperature.