公开(公告)号：US11606058B2

公开(公告)日：2023-03-14

申请号：US17878424

申请日：2022-08-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaojian Huang ,  Zhimin Dan ,  Bao Li ,  Xiyang Zuo

IPC: H02P29/60 ,  B60L50/60 ,  B60L58/27

Abstract: Disclosed is a motor, a control method, a power system, and an electric vehicle. Each phase stator winding of the motor includes two sub-winding sets. When a traction battery needs to be heated, the two sub-winding sets of the motor store electrical energy and provide alternating currents to the traction battery through an inverter, so that the traction battery uses its internal resistance for heating. In addition, the two sub-winding sets generate opposite magnetic fields which cancel each other out, so that the strength of the magnetic field inside each phase stator winding and the air gap magnetic flux are reduced, thereby alleviating the heat generation and NVH problems of the motor.

公开(公告)号：US20220219568A1

公开(公告)日：2022-07-14

申请号：US17541296

申请日：2021-12-03

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiaojian HUANG ,  Xiong Zheng ,  Xiyang Zuo ,  Zhimin Dan ,  Bao Li

IPC: B60L58/27 ,  H01M10/615 ,  H05B1/02 ,  B60L53/20 ,  H01M10/657 ,  H01M10/63 ,  H01M10/48 ,  H01M10/42 ,  H02P27/06

Abstract: The present application provides a battery thermal management system, a control method and device of a battery heating system, a device, and a medium. The method includes: acquiring a temperature rise rate parameter of the battery; determining proportions of a square wave signal and a sine wave signal in a first control signal of the switch components according to the temperature rise rate parameter; generating the first control signal of the switch components according to the proportions of the square wave signal and the sine wave signal; outputting the first control signal to the switch components to control switching on or off of the switch components via the first control signal, so as to generate an alternating current in a loop connecting the battery and the motor and heat the battery using the alternating current.

公开(公告)号：US11351888B2

公开(公告)日：2022-06-07

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：US11050287B2

公开(公告)日：2021-06-29

申请号：US16235261

申请日：2018-12-28

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/42 ,  H01M10/44

Abstract: A battery pack system includes a battery pack, a battery management module, a discharge circuit module, a charge circuit module and an energy storage module. The battery pack is connected to the discharge circuit module in series and the battery pack is connected to the charge circuit module in series. The battery management module is configured to monitor a temperature of the battery pack, and if the temperature is lower than a first temperature threshold, send a switch-on instruction to the discharge circuit module and the charge circuit module alternately at a regulation frequency. The discharge circuit module is configured to switch on according to the switch-on instruction to enable electricity of the battery pack to flow into the energy storage module. The charge circuit module is configured to switch on according to the switch-on instruction to enable electricity of the energy storage module to flow into the battery pack.

公开(公告)号：US10957950B1

公开(公告)日：2021-03-23

申请号：US17099956

申请日：2020-11-17

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H01M10/625 ,  H01M10/615 ,  H01M10/48 ,  H01M10/637 ,  H02J7/00 ,  H02J7/34 ,  H01M10/657

Abstract: The present application discloses a heating module, a heating method for a battery module, and a heating system. The heating module includes: an energy storage unit, a first switch unit, a second switch unit and a control unit. The energy storage unit, a first battery unit in a battery module and the first switch unit may form a first heating loop; the energy storage unit, a second battery unit in the battery module, and the second switch unit may form a second heating loop. The control unit may control the first switch unit or the second switch unit, so as to sequentially switch on, between the first heating loop and the second heating loop, a heating loop where a battery unit with a higher state of charge is located and a heating loop where a battery unit with a lower state of charge is located.

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：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.

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：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：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.