公开(公告)号：US11901757B2

公开(公告)日：2024-02-13

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 ,  B60L2220/40 ,  H02J7/0024

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：US11735787B2

公开(公告)日：2023-08-22

申请号：US16953513

申请日：2020-11-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang Zuo ,  Zhimin Dan ,  Wei Zhang ,  Yizhen Hou ,  Teng Yu ,  Wenbin Lu ,  Xingyuan Wu ,  Taosheng Zhu

IPC: H02J7/00 ,  H01M10/657 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

CPC classification number: H01M10/657 ,  H01M10/425 ,  H01M10/441 ,  H01M10/443 ,  H01M10/482 ,  H01M10/486 ,  H02J7/00 ,  H02J7/00309 ,  H01M2010/4271 ,  H02J7/00304

Abstract: A battery pack system, a control method thereof and a management device are provided. A battery pack is connected in series with a discharge circuit unit and a charge circuit unit; a battery management unit is to monitor a temperature of the battery pack, to periodically send, when the temperature of the battery pack is lower than a threshold, a turn-on-instruction to the discharge circuit unit and the charge circuit unit alternately to control the discharge circuit unit and the charge circuit unit to be alternately turned on in heating cycles; the discharge circuit unit is to be turned on according to the turn-on-instruction to enable electricity of the battery pack to flow into the energy storage unit in discharging-phase; and the charge circuit unit is to be turned on according to the turn-on-instruction to enable electricity of the energy storage unit to flow into the battery pack in charging-phase.

公开(公告)号：US11637440B2

公开(公告)日：2023-04-25

申请号：US17471203

申请日：2021-09-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhimin Dan ,  Wenbin Lu ,  Wei Zhang ,  Yizhen Hou ,  Jia Xu ,  Jiechao Luo ,  Teng Yu

IPC: H04W4/00 ,  H02J7/00 ,  G01R31/389 ,  G01R31/3842 ,  G01R31/392 ,  H04W52/02

Abstract: The present disclosure provides a battery management system, and a method and apparatus for transmitting information. The method includes: determining, from a plurality of slave nodes, a fault slave node that communicates abnormally with a master node in the battery management system; selecting a target slave node from the plurality of slave nodes, wherein the target slave node is a slave node that communicates normally with both the master node and the fault slave node; transmitting frequency conversion information to the target slave node, so that the target slave node forwards the frequency conversion information to the fault slave node, and the fault slave node performs a frequency conversion based on the frequency conversion information; and transmitting information with the fault slave node using a frequency after the frequency conversion. According to embodiments of the present disclosure, the reliability of wireless communication in the battery management system can be improved.

公开(公告)号：US20230064263A1

公开(公告)日：2023-03-02

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

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：US11407331B2

公开(公告)日：2022-08-09

申请号：US16972574

申请日：2019-01-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang Zuo ,  Zhimin Dan ,  Wei Zhang ,  Yizhen Hou ,  Guowei Li ,  Xingyuan Wu ,  Yanru Li

IPC: B60L58/27 ,  H02P27/08 ,  H01M10/63 ,  H01M10/615 ,  H02J7/00 ,  H01M10/625

Abstract: In a battery heating system an inverter includes a first-phase bridge arm, a second-phase bridge arm and a third-phase bridge arm connected in parallel, each of a upper bridge arm and a lower bridge arm is provided with a switch module, the switch module is connected in parallel with a buffer module; and a motor controller in the inverter is provided for providing driving signals to the switch module of a target upper bridge arm and the switch module of a target lower bridge arm to control the switch module of the upper bridge arm of any bridge arm among the three phases of bridge arms and the switch module of the lower bridge arm of at least one bridge arm among the bridge arms except the bridge arm where the switch module of the target upper bridge arm is located to be periodically turned on and off.

公开(公告)号：US11262413B2

公开(公告)日：2022-03-01

申请号：US17051184

申请日：2020-01-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Meng Li ,  Zhimin Dan ,  Weiping Sun ,  Yizhen Hou ,  Wei Zhang

IPC: G01R31/389 ,  G01R31/364 ,  G01R31/36

Abstract: The present application provides an insulation detection circuit, a method and a battery management system. The circuit includes: a first voltage dividing module, where, one end of the first voltage dividing module is connected to a positive electrode of a power battery to be detected, and the other end of the first voltage dividing module is connected to a first isolation module and a second voltage dividing module respectively; the second voltage dividing module, connected to a negative electrode of the power battery to be detected; the first isolation module, connected to one end of a sampling module; the sampling module, where, the other end of the sampling module is connected to one end of a signal generating module; the signal generating module, where, the other end of the signal generating module is connected to power ground; and the processing module.

公开(公告)号：US11251714B1

公开(公告)日：2022-02-15

申请号：US17490149

申请日：2021-09-30

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jinfeng Gao ,  Zhimin Dan ,  Yizhen Hou

IPC: H02M3/335 ,  H02J7/00 ,  H02M1/00 ,  H02J3/32

Abstract: The application provides a method for controlling a power converter, in which a theoretical output voltage of a first converter is acquired according to a voltage of a source side, a theoretical input voltage of a second converter is acquired according to a voltage of a destination side, and an actual output voltage of the first converter in a first power supply cycle is set according to the theoretical output voltage of the first converter and the theoretical input voltage of the second converter.

公开(公告)号：US20210359348A1

公开(公告)日：2021-11-18

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

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：US11021064B2

公开(公告)日：2021-06-01

申请号：US16289436

申请日：2019-02-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhimin Dan ,  Xiyang Zuo ,  Wei Zhang ,  Yizhen Hou ,  Wenbin Lu ,  Xingyuan Wu ,  Taosheng Zhu

IPC: H02J7/00 ,  B60L3/00 ,  H01M10/615 ,  H01M10/625 ,  H01M10/657 ,  B60L58/27

Abstract: The present disclosure provides a battery pack heating apparatus. The battery pack heating apparatus is applicable portably and externally to a vehicle and includes: an electrical energy conversion component, including an energy storage device, a first set of switches and a second set of switches; a heating interface component including a plurality of heating interfaces connected to the energy storage device via the first set of switches to form a first heating loop and connected to the energy storage device via the second set of switches to form a second heating loop, each of the plurality of heating interfaces being configured to be connected to a battery pack of one vehicle; and a heating control module configured to control a direction of electrical energy transfer between the electrical energy conversion component and the battery pack.

公开(公告)号：US10992327B2

公开(公告)日：2021-04-27

申请号：US16930659

申请日：2020-07-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yizhen Hou ,  Zhimin Dan ,  Wei Zhang ,  Jiechao Luo ,  Wenbin Lu ,  Jia Xu ,  Teng Yu

IPC: H04B1/10 ,  H04B1/04 ,  H04B1/00 ,  H03H7/01 ,  H01Q1/52

Abstract: A system comprises an antenna, a port converting device, an information transmission device, a shield case, and a reference voltage end; wherein the antenna, the port converting device, and the information transmission device are connected sequentially, and the information transmission device is disposed within the shield case, and both the shield case and the port converting device is connected with the reference voltage end; the antenna is configured for a conversion between a radio frequency signal and a single-ended signal; the port converting device is configured for a conversion between the single-ended signal and target differential mode signals; the information transmission device is configured to transmit and process the target differential mode signals; and parameters of components in the port converting device is determined according to a preset communication frequency and a voltage amplitude and phase of a differential mode signal.