公开(公告)号：US20190064230A1

公开(公告)日：2019-02-28

申请号：US16112720

申请日：2018-08-26

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yizhen Hou ,  Zhanyu Sun ,  Zhimin Dan ,  Jiechao Luo ,  Wei Zhang

IPC: G01R19/165

Abstract: The present disclosure provides a battery high voltage sampling circuit and a battery management system. The battery high voltage sampling circuit includes a positive relay, a negative relay, a first positive sampling unit, a first negative sampling unit and a reference voltage terminal, wherein: a first terminal of the positive relay is connected to a positive electrode of a power battery pack to be detected, a first terminal of the negative relay is connected to a negative electrode of the power battery pack to be detected, and both of the first positive sampling unit and the first negative sampling unit are connected to the reference voltage terminal.

公开(公告)号：US12128859B2

公开(公告)日：2024-10-29

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

CPC classification number: 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：US12100819B2

公开(公告)日：2024-09-24

申请号：US17390879

申请日：2021-07-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiong Zheng ,  Zhimin Dan ,  Xiyang Zuo ,  Bao Li ,  Tiancong Wang

IPC: H01M10/44 ,  B60L3/00 ,  B60L15/20 ,  B60L53/62 ,  B60L58/12 ,  B60L58/27 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H02J7/00 ,  H02P29/68

CPC classification number: H01M10/443 ,  B60L3/0046 ,  B60L15/20 ,  B60L53/62 ,  B60L58/12 ,  B60L58/27 ,  H01M10/441 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H02J7/0068 ,  H02P29/68 ,  H01M2220/20

Abstract: The present application provides a switch control device and method, a motor controller, and a battery pack heating control system. The switch control device includes: a processing module configured to select, when it is determined that a switch control cycle switches from a previous cycle to a current cycle, a target upper bridge arm switch module for the current cycle from upper bridge arm switch modules other than a target upper bridge arm switch module for the previous cycle and/or select a target lower bridge arm switch module for the current cycle from lower bridge arm switch modules other than a target lower bridge arm switch module for the previous cycle; wherein the processing module is further configured to: during each switch control cycle, control the target upper bridge arm switch module and the target lower bridge arm switch module to be turned on and off.

公开(公告)号：US12090885B2

公开(公告)日：2024-09-17

申请号：US17712088

申请日：2022-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhanliang Li ,  Zhimin Dan ,  Miaomiao Zhang ,  Yu Yan

IPC: B60L53/80 ,  B60L53/30 ,  B60L53/60 ,  B60L58/16 ,  H02J7/00

CPC classification number: B60L53/80 ,  B60L53/305 ,  B60L53/60 ,  B60L58/16 ,  H02J7/0013 ,  B60L2260/58

Abstract: Battery swapping methods, apparatus, systems, devices and media are provided in the embodiments of the present disclosure. The method includes: receiving a battery swapping request of a vehicle; determining a second battery swapping time and a second swapping electricity amount based on a first battery swapping time and a first swapping electricity amount, in a case where a first charging parameter is adjusted to a second charging parameter to charge an available battery of a battery swapping station; and sending a battery swapping response to a terminal device of the vehicle, wherein the battery swapping response includes the second battery swapping time and the second swapping electricity amount, the second battery swapping time is a recommended battery swapping time provided by the battery swapping station, and the second swapping electricity amount is a recommended swapping electricity amount provided by the battery swapping station.

公开(公告)号：US12043139B2

公开(公告)日：2024-07-23

申请号：US17566718

申请日：2021-12-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiao Wang ,  Zhimin Dan

IPC: B60L58/12 ,  B60L53/22 ,  H01M10/42

CPC classification number: B60L58/12 ,  B60L53/22 ,  H01M10/425 ,  B60L2210/10 ,  B60L2240/547 ,  H01M2010/4271 ,  H01M2220/20

Abstract: The embodiments of the present application provide a low-voltage power transmission system, a DCDC converter and a control method, a device and a medium, relating to the field of battery power. The control method includes: acquiring a charging signal; acquiring a vehicle start signal; acquiring an enabling signal; when each of the charging signal, the vehicle activating start signal, and the enabling signal is at a low level, and no communication message sent by a battery management system (BMS) is received, determining that a vehicle is in a power-off state and enters a sleep mode; when a duration of the sleep mode reaches a preset duration, performing self-awakening, and outputting, to the BMS, an awakening signal for awakening the BMS and making the BMS enter a working mode.

公开(公告)号：US12027680B2

公开(公告)日：2024-07-02

申请号：US17130972

申请日：2020-12-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiao Wang ,  Chao Zeng ,  Jia Xu ,  Zhimin Dan ,  Yizhen Hou ,  Wei Zhang ,  Guoliang Hu

IPC: H01M10/48 ,  B60L58/24 ,  H01M10/42 ,  H01M50/569

CPC classification number: H01M10/486 ,  B60L58/24 ,  H01M10/4257 ,  B60L2250/10 ,  H01M2010/4271 ,  H01M50/569

Abstract: This application provides a method, an apparatus, a system for detecting battery thermal runaway, and a battery management unit. The method includes: obtaining an output signal of an air pressure sensor located in a battery pack, and obtaining parameter information of the battery pack; determining state information of the air pressure sensor based on the output signal of the air pressure sensor; and generating an alarm signal indicating occurrence of thermal runaway in the battery pack based on the state information of the air pressure sensor and the parameter information of the battery pack. In this application, the thermal runaway detection for the battery pack may be implemented by considering parameter information of both the air pressure sensor and the battery pack, improving the reliability of the thermal runaway detection for the battery pack, reducing the probability of false positives and false negatives, and improving driving safety.

公开(公告)号：US20240208362A1

公开(公告)日：2024-06-27

申请号：US18596661

申请日：2024-03-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuanmiao Zhao ,  Xiaojian Huang ,  Zhanliang Li ,  Yu Yan ,  Xinwei Chen ,  Zhimin Dan

IPC: B60L58/18 ,  H02J7/00

CPC classification number: B60L58/18 ,  H02J7/0013 ,  H02J7/0047 ,  B60L2240/547

Abstract: Provided are a power battery voltage regulation circuit and system, and a control method and a control apparatus therefor. The power battery voltage regulation circuit includes a power module, a heating module, a charge/discharge interface, and a voltage regulation switch assembly, wherein the heating module comprises an energy storage element and a switch module; the power module comprises at least a first power battery and a second power battery; the power module is connected in parallel with the switch module; and an external charge/discharge device is connected in parallel with the power module through the charge/discharge interface; the voltage regulation switch assembly comprises a plurality of switches that are provided between the charge/discharge interface and the power module; and the voltage regulation switch assembly and the switch module are used for regulating, in response to a control signal, a charge/discharge voltage between the external charge/discharge device and the power module.

公开(公告)号：US11962174B2

公开(公告)日：2024-04-16

申请号：US17122955

申请日：2020-12-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei Zhang ,  Zhimin Dan ,  Jinbo Cai ,  Yizhen Hou ,  Meilin Chen

IPC: H02J7/00

CPC classification number: H02J7/00304 ,  H02J7/0068

Abstract: This application discloses a protection circuit associated with a battery management system (BMS). The protection circuit includes a first protection module and a freewheeling module. The first protection module is connected in parallel to a first switch module of the BMS, and the freewheeling module is connected in parallel to a load module of the BMS. The first protection module switches to a charging state when the first switch module is turned off to stabilize a voltage between a first terminal of the first switch module and a second terminal of the first switch module. The freewheeling module is turned on when the first switch module is turned off to stabilize a voltage between the first switch module and the second switch module. The protection circuit mitigates risks of breakdown of the first switch module, and prevents a parasitic inductance from limiting a switching frequency of the first switch module.

公开(公告)号：US11928457B2

公开(公告)日：2024-03-12

申请号：US17704047

申请日：2022-03-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhanliang Li ,  Zhimin Dan ,  Yu Yan ,  Miaomiao Zhang ,  Zhenhui Huang

IPC: G06F8/60 ,  B60L53/68 ,  G06F8/65

CPC classification number: G06F8/65 ,  B60L53/68

Abstract: Embodiments of the present application provide a server of a battery swapping station, a charging method and system for a battery, a device and a medium. The method is applied to a server of a battery swapping station, and the method includes: acquiring version information of a first software version after a vehicle mounted with a power battery arrives at the battery swapping station, wherein the first software version is a software version of a first battery management unit of the power battery; controlling, under a condition that the version information of the first software version is lower than version information of a second software version stored in the server, a second battery management unit of the battery swapping station to update the first software version of the first battery management unit to the second software version.

公开(公告)号：US11923712B2

公开(公告)日：2024-03-05

申请号：US18320035

申请日：2023-05-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanliang Li ,  Huanle Zhou ,  Meng Li ,  Xiyang Zuo ,  Yu Yan ,  Zhimin Dan

IPC: H02J7/00 ,  H01M10/04 ,  H01M10/44

CPC classification number: H02J7/0068 ,  H01M10/0404 ,  H01M10/446 ,  H02J2207/20

Abstract: A battery formation apparatus includes a DC-DC conversion module, an additional power supply, and a control circuit. Low-voltage and high-voltage terminals of the DC-DC conversion module are electrically connected to the control circuit and a DC bus, respectively. The DC-DC conversion module is configured to, when a battery unit discharges into the battery formation apparatus, convert a first voltage input into a second voltage greater than the first voltage, and output the second voltage. The additional power supply is electrically connected to the control circuit, and configured to output an additional voltage. The control circuit is electrically connected to the battery unit, the low-voltage terminal of the DC-DC conversion module, and the additional power supply. The control circuit is configured to serially connect the low-voltage terminal of the DC-DC conversion module, the battery unit, and the additional power supply when the battery unit discharges into the battery formation apparatus.