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公开(公告)号：US20230182603A1
公开(公告)日：2023-06-15
申请号：US17924162
申请日：2021-06-30
Applicant: GREAT WALL MOTOR COMPANY LIMITED
Inventor： Mingwang ZHOU , Shujiang CHEN , Xuejing YANG
CPC classification number: B60L53/62 , H02J7/00714
Abstract: The vehicle includes a battery pack. When the battery pack is charged by using a charging gun of a charging pile, battery pack is charged according to smaller value of a first charging current upper limit value of a charging device and a second charging current upper limit value of the battery pack, so that the charging efficiency is improved to the greatest extent, and the charging time is shortened on the premise of ensuring safety, and a situation that the charging time is prolonged as the charging current is set to be too small is avoided; and when the battery pack is charged by using an on-board charging gun, the battery pack is charged according to the smallest value of the first charging current upper limit value of the charging device, the second charging current upper limit value of the battery pack, and a preset charging current value.
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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.
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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
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.
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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
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.
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公开(公告)号：US20230060311A1
公开(公告)日：2023-03-02
申请号：US17790196
申请日：2021-01-07
Applicant: GREAT WALL MOTOR COMPANY LIMITED
Inventor： Shuai ZHANG , Shujiang CHEN , Wentao HOU , Xinran DONG , Ce SUN , Jiaxin SUN , Weifeng DENG
IPC: B60W30/18
Abstract: A method for parking control is provided in the present application, which includes the following steps: determining whether a single-pedal mode is activated determining whether conditions for deceleration control are met when the single-pedal mode is activated; controlling the new-energy vehicle to decelerate when the conditions for deceleration control are met; determining whether conditions for sending a brake request to a motor controller are met during a process of controlling the new-energy vehicle to decelerate; sending the brake request to the motor controller when the conditions for sending a brake request to the motor controller are met; and sending a parking request to an electronic handbrake when the new-energy vehicle is in the brake mode and the speed of the new-energy vehicle is smaller than the third preset value for a third preset time, enable the new-energy vehicle to enter in a parking mode.
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Patent Agency Ranking
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
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.
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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.
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公开(公告)号：US20230256857A1
公开(公告)日：2023-08-17
申请号：US18010602
申请日：2021-09-30
Applicant: GREAT WALL MOTOR COMPANY LIMITED
Inventor： Mingwang ZHOU , Xuejing YANG , Shujiang CHEN , Zhimeng YUAN
CPC classification number: B60L53/66 , B60L58/12 , B60L2260/40
Abstract: Provided are a method and a device for timing a scheduled charging, and a terminal device. The method for timing a scheduled charging comprises steps of: acquiring, in response to a condition that a charging gun is connected, a scheduled-charging start time for equipment and a first current-absolute-time at which a connection of the charging gun is completed; determining a first time duration to the scheduled-charging start time according to the scheduled-charging start time and the first current-absolute-time; performing a compensation on the first time duration to obtain a second time duration, and starting a timing; and terminating the timing, when the second time duration is reached, and waking up the equipment.
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公开(公告)号：US20230219436A1
公开(公告)日：2023-07-13
申请号：US18009363
申请日：2021-09-29
Applicant: GREAT WALL MOTOR COMPANY LIMITED
Inventor： Mingwang ZHOU , Xuejing YANG , Shujiang CHEN , Gengnan ZHANG , Yipo HU
Abstract: A DC converter, a controlling method, and a vehicle are provided. The DC converter includes: a first inductor, a switching unit, a diode, a first capacitor, a load resistor, a pre-charge control unit and a controller. The output terminal of the controller is connected with the control terminal of the switching unit and the control terminal of the pre-charge control unit. The controller is configured to control the switching unit to be turned on or turned off, and to control the resistor connected between the negative electrode of the diode and the first end of the load resistance in the pre-charge control unit when the switching unit is turned off, such that the direct current converter is pre-charged by the low-voltage power supply.
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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
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.
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