公开(公告)号：US20230064434A1

公开(公告)日：2023-03-02

申请号：US17706648

申请日：2022-03-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhanliang LI ,  Zhimin DAN ,  Miaomiao ZHANG ,  Yu YAN ,  Zhenhui HUANG

IPC: B60S5/06 ,  G05B15/02 ,  G06T7/70

Abstract: Embodiments of the present application provide a battery swapping method, module, device and medium. The method includes: acquiring a first image captured for a vehicle within a battery swapping area, and acquiring a first location of a battery on the vehicle; determining a second location of the vehicle in the battery swapping area according to the first image; determining, according to the first location and the second location, a target location of the battery in the battery swapping area to control a battery swapping device to move to the target location for battery swapping. According to the embodiments of the present application, battery swapping can be completed in a case where a user parks the vehicle randomly in the battery swapping area. Thus, convenience of the battery swapping process is improved.

公开(公告)号：US20230062270A1

公开(公告)日：2023-03-02

申请号：US17562259

申请日：2021-12-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanliang LI ,  Yuanmiao ZHAO ,  Xiyang ZUO ,  Xiaojian HUANG ,  Zhimin DAN ,  Yu YAN

IPC: H01M10/615 ,  H01M10/625 ,  H01M10/63 ,  H01M50/249

Abstract: The present application relates to a method for heating a battery pack, where the battery pack is connected to an inductive load via a converter and the method includes: controlling on and off of a switch module in the converter upon receiving a heating request, so as to control discharging and charging between the battery pack and the inductive load, connecting the battery pack and an auxiliary heating mechanism in parallel during a discharging stage of the battery pack; and disconnecting the auxiliary heating mechanism from the battery pack during a charging stage of the battery pack. The present application further relates to a battery heating system and an electric apparatus.

公开(公告)号：US20220239127A1

公开(公告)日：2022-07-28

申请号：US17459220

申请日：2021-08-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Weiping SUN ,  Zhimin DAN ,  Zhanliang LI ,  Shuyun XIONG ,  Yu YAN

IPC: H02J7/00 ,  B60L58/12 ,  G01R31/382

Abstract: Embodiments of the present application provides a method for pre-charging a power conversion device and a power conversion device. The power conversion device is configured to perform power conversion between a charging pile and a traction battery, and the method includes: receiving, by the power conversion device, a first message sent by a battery management system of the traction battery, and the first message is configured to indicate that the battery management system is ready for charging; performing, by the power conversion device, a pre-charging, and the pre-charging includes: charging a capacitor in the power conversion device; and forwarding, by the power conversion device, the first message to the charging pile after the pre-charging is completed. The technical solution of the embodiments of the present application can ensure a normal charging process.

公开(公告)号：US20220239120A1

公开(公告)日：2022-07-28

申请号：US17543061

申请日：2021-12-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Weiping SUN ,  Zhimin DAN ,  Zhanliang LI ,  Shuyun XIONG ,  Xiyang ZUO

IPC: H02J7/00

Abstract: Embodiments of the present application provide a pre-charging method of a power conversion device and a power conversion device. The power conversion device is used for a power conversion between a charging pile and a power battery and the method includes: receiving, by the power conversion device, a first message transmitted by a battery management system of the power battery, where the first message is used to indicate a charging readiness of the battery management system; and forwarding, by the power conversion device, the first message to the charging pile and performing a pre-charging, where the pre-charging includes charging a capacitor in the power conversion device. The technical solution in embodiments of the present application is capable of ensuring normal performing of a charging process.

公开(公告)号：US20240178473A1

公开(公告)日：2024-05-30

申请号：US18434388

申请日：2024-02-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanliang LI ,  Yu YAN ,  Zhimin DAN ,  Yuanmiao ZHAO ,  Xinwei CHEN ,  Jinfeng GAO ,  Xiaojian HUANG

IPC: H01M10/637 ,  B60L53/30 ,  B60L53/53 ,  B60L58/27 ,  H01M10/42 ,  H01M10/615 ,  H02J7/00 ,  H02J7/02

CPC classification number: H01M10/637 ,  B60L53/30 ,  B60L53/53 ,  B60L58/27 ,  H01M10/425 ,  H01M10/615 ,  H02J7/0068 ,  H02J7/02 ,  B60L2210/10 ,  B60L2210/30 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J2207/20

Abstract: A battery heating apparatus includes a voltage transformation module and a control module. The voltage transformation module includes a first voltage transformation circuit configured to connect a charging apparatus, a first switch module connected to the first voltage transformation circuit, a second voltage transformation circuit configured to connect a power battery, and an energy storage element and a second switch module connected to the second voltage transformation circuit. The control module is configured to, in a first heating mode, control the first switch module to turn off the first voltage transformation circuit, and control the second switch module so that the second voltage transformation circuit and the energy storage element form a loop for discharging from the power battery to the energy storage element and a loop for charging the power battery by the energy storage element, for heating the power battery during discharging and charging.

公开(公告)号：US20230378791A1

公开(公告)日：2023-11-23

申请号：US18229681

申请日：2023-08-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuanmiao ZHAO ,  Xiaojian HUANG ,  Zhanliang LI ,  Yu YAN ,  Xinwei CHEN ,  Zhimin DAN

IPC: H02J7/00 ,  B60L50/60 ,  B60L50/51

CPC classification number: H02J7/007 ,  B60L50/60 ,  B60L50/51 ,  H02J7/0024 ,  B60L2220/40

Abstract: A control method may include: controlling a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a first leg, and a second leg set to turn on or off, to form in a first period a circuit loop for a charge/discharge module to discharge to a motor and to form in a second period a circuit loop for the charge/discharge module and the motor to charge a first electric vehicle battery group and a second electric vehicle battery group or form in the second period a circuit loop for the motor to charge the first electric vehicle battery group and the second electric vehicle battery group.

公开(公告)号：US20230231218A1

公开(公告)日：2023-07-20

申请号：US17896107

申请日：2022-08-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanliang LI ,  Zhimin DAN ,  Yu YAN ,  Xiaojian HUANG ,  Xiyang ZUO ,  Yuanmiao ZHAO ,  Xiao WANG

IPC: H01M10/633 ,  B60L58/27 ,  H02J7/00 ,  H01M10/615 ,  H01M10/625

CPC classification number: H01M10/633 ,  B60L58/27 ,  H02J7/0068 ,  H01M10/615 ,  H01M10/625

Abstract: Embodiments of this application provide a DC/DC conversion circuit, a power unit, a charging pile, and a charge-discharge heating method. The circuit includes: a first rectifier module, where an input end of the first rectifier module is connected to a power grid through an AC/DC conversion circuit; a transformer module, where an input end of the transformer module is connected to an output end of the first rectifier module; an energy storage module; and a second rectifier module, where an input end of the second rectifier module is configured to connect to an output end of the transformer module or the energy storage module, and an output end of the second rectifier module is configured to connect to a battery pack of an electric vehicle when the charging pile is charging the electric vehicle.

公开(公告)号：US20230076134A1

公开(公告)日：2023-03-09

申请号：US17980860

申请日：2022-11-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shuyun XIONG ,  Yu YAN ,  Zhimin DAN ,  Zhanliang LI ,  Weiping SUN

IPC: H02J7/00 ,  B60L53/62 ,  B60L58/12 ,  B60L58/30 ,  H01M10/44 ,  H01M10/46 ,  H01M10/42

Abstract: Embodiments of the present application provide a charging method, a battery management system for a traction battery and a charging pile, which can effectively ensure normal charging of an electric vehicle. The charging method is used for charging a traction battery, and the method includes: determining, by the battery management system (BMS) of the traction battery, a pulse charging demand parameter according to a battery state parameter of the traction battery; and sending a pulse charging information to a charging pile by the BMS, the pulse charging information including the pulse charging demand parameter for indicating the charging pile to output a pulse current for charging the traction battery.

公开(公告)号：US20230035145A1

公开(公告)日：2023-02-02

申请号：US17715203

申请日：2022-04-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu YAN ,  Xiyang ZUO ,  Diping LIU ,  Haili LI ,  Zhanliang LI ,  Zhimin DAN

IPC: H02J7/00

Abstract: The embodiments of the present application provide a method for charging a battery, a battery management system, and a charge and discharge device. The method for charging the battery includes: acquiring, by a BMS, a first charge current and sending it to a charge and discharge device, thus making the charge and discharge device charge the battery based on the first charge current; if a first accumulated charge quantity of the battery is greater than or equal to a first accumulated charge quantity threshold value, acquiring, by the BMS, a first discharge current and sending it to the charge and discharge device, thus making the charge and discharge device control the battery to discharge based on the first discharge current; and if a first accumulated discharge quantity of the battery is greater than or equal to a first accumulated discharge quantity threshold value.

公开(公告)号：US20230029492A1

公开(公告)日：2023-02-02

申请号：US17715166

申请日：2022-04-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiyang ZUO ,  Yu YAN ,  Jinfeng GAO ,  Diping LIU ,  Zhanliang LI ,  Yizhen HOU

IPC: H02J7/00 ,  H02J7/02 ,  H02J3/28

Abstract: Embodiments of the present application provide a charging and discharging apparatus and a battery charging method, which are capable of ensuring security performance of a battery. The apparatus comprises a bi-directional DC/DC converter and a control unit, wherein the control unit is configured to: receive a first charging current transmitted by a battery management system (BMS) of a battery, control the bi-directional DC/DC converter based on the first charging current to charge the battery through an energy storage battery; receive a first discharging current transmitted by the BMS and control the bi-directional DC/DC converter based on the first discharging current to discharge a battery capacity of the battery to the energy storage battery; and receive a second charging current transmitted by the BMS and control the bi-directional DC/DC converter based on the second charging current to charge the battery through the energy storage battery.