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：US20240079984A1

公开(公告)日：2024-03-07

申请号：US18307791

申请日：2023-04-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaojian HUANG ,  Zhimin DAN ,  Xianxi PAN ,  Jinfeng GAO

IPC: H02P27/06 ,  H01M10/42 ,  H01M10/44 ,  H02J7/00

CPC classification number: H02P27/06 ,  H01M10/425 ,  H01M10/441 ,  H02J7/007192 ,  B60L50/60 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J2207/20

Abstract: A charge/discharge circuit includes a power supply module, a switch module, an energy storage module, and a charge-discharge switching module connected in parallel. A first terminal of the energy storage module is connected to the switch module, and a second terminal of the energy storage module is connected to the charge-discharge switching module. The switch module and the charge-discharge switching module are configured to perform an action in response to a charge/discharge enable signal to produce an alternating current in the charge/discharge circuit. A waveform of the alternating current includes at least one of a triangular waveform, a quasi-triangular waveform, a sinusoidal waveform, or a quasi-sinusoidal waveform.

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：US20230146978A1

公开(公告)日：2023-05-11

申请号：US18148126

申请日：2022-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinwei CHEN ,  Zhimin DAN ,  Chengyong LIU ,  Wei ZHANG ,  Yizhen HOU ,  Xian HUANG

IPC: H01M10/6571 ,  H02J7/00 ,  H01M10/615 ,  H01M10/63 ,  B60L58/27

CPC classification number: H01M10/6571 ,  H02J7/0013 ,  H02J7/0063 ,  H01M10/615 ,  H01M10/63 ,  B60L58/27

Abstract: A heating system includes first and second input ends, first and second battery modules, first switch and second switches, and a control unit. The first switch is connected between first terminals of the first and second battery modules. Second terminals of the first and second battery modules are connected to each other. The second switch is connected between the first input end and the first terminal of the second battery module. The second input end is connected to the first terminal of the first battery module. The first terminals of the first and second battery modules have a same polarity, and the second terminals of the first and second battery modules have a same polarity. The control unit is connected to the first and second switches, and configured to control the first and second switches to be turned on or off.

公开(公告)号：US20230127005A1

公开(公告)日：2023-04-27

申请号：US17903237

申请日：2022-09-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinwei CHEN ,  Yiqi LIANG ,  Yizhen HOU ,  Zhimin DAN ,  Yu YAN ,  Qidong LOU

IPC: B60L15/20 ,  H01M10/633 ,  H01M10/625

Abstract: A thermal management method includes obtaining a predicted temperature including a predicted value of an operating temperature of a target device, and controlling the target device to switch a thermal management according to the predicted temperature mode. The thermal management mode is used to adjust the operating temperature of the target device.

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：US20230031352A1

公开(公告)日：2023-02-02

申请号：US17563513

申请日：2021-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu YAN ,  Xiyang ZUO ,  Zhimin DAN ,  Haili LI ,  Shan HUANG ,  Shichao LI

IPC: H02J7/00 ,  B60L50/60 ,  B60L58/12 ,  H01M10/42

Abstract: Embodiments of the application provide a method for charging battery a charging and discharging device, which can ensure the safety performance of the battery. The charging and discharging device includes a first DC/DC converter, a unidirectional AC/DC converter and a control unit, where the first DC/DC converter is a unidirectional DC/DC converter, and the control unit is configured to: receive a first charging current and control the unidirectional AC/DC converter and the first DC/DC converter to charge a battery through an AC power source based on the first charging current; receive a first discharging current, and control the battery to release power based on the first discharging current; and receive a second charging current, and control the unidirectional AC/DC converter and the first DC/DC converter to charge the battery through the AC power source based on the second charging current.

公开(公告)号：US20220376320A1

公开(公告)日：2022-11-24

申请号：US17877208

申请日：2022-07-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaojian HUANG ,  Zhimin DAN ,  Bao LI ,  Xiyang ZUO

IPC: H01M10/63 ,  H01M10/615 ,  H01M10/625 ,  H01M10/48 ,  H02P29/66 ,  B60L58/27 ,  G01K3/00 ,  G01K3/10 ,  G01R31/34

Abstract: Disclosed is a traction battery self-heating control method and a device. Acquiring a second temperature of a rotor at a current sampling time according to system parameters and a first temperature of the rotor at a previous sampling time, and estimating a third temperature of the rotor at a next sampling time according to the first temperature and the second temperature, and stopping the self-heating of the traction battery when the third temperature reaches a demagnetization temperature of the rotor. Whether to stop the self-heating of the traction battery is determined by estimating a rotor temperature under the self-heating condition, and comparing the rotor temperature with the demagnetization temperature of the rotor, and thus the self-heating control of the traction battery is realized.