公开(公告)号：US11338702B2

公开(公告)日：2022-05-24

申请号：US17390873

申请日：2021-07-31

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: B60L58/27 ,  H01M10/44 ,  H02J7/00 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H02P29/68

Abstract: The application provides a control system and method for a battery pack heating system. The control system includes: a battery management system configured to acquire a state parameter of a battery pack, and send heating request information to a vehicle controller when determining the state parameter of the battery pack meets a preset heating condition; a motor controller configured to send, to the vehicle controller, feedback information indicating that a motor of the battery pack heating system is in a non-operating state, when determining the motor is in the non-operating state, and control, in response to a first control signal, a target upper bridge arm switch module and a target lower bridge arm switch module to be periodically turned on or off; and the vehicle controller configured to send the first control signal to the motor controller in response to the heating request information and the feedback information.

公开(公告)号：US20200381788A1

公开(公告)日：2020-12-03

申请号：US16860408

申请日：2020-04-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinxin DU ,  Zhimin Dan ,  Fuping Luo ,  Shengwei Wang ,  Tiancong Wang ,  Xiyang Zuo

IPC: H01M10/637 ,  H02J7/00 ,  H01M10/615

Abstract: Disclosed are a heating method for a rechargeable battery, a control unit and a heating circuit. The heating method comprises: determining a frequency value of a pulse current for heating the rechargeable battery in response to a heating command of the rechargeable battery; determining a current value of the pulse current according to the frequency value and an acquired state parameter of the rechargeable battery; judging whether the current value satisfies a preset heating demand; if the current value satisfies the heating demand, generating the pulse current under control according to the frequency value; if the current value does not satisfy the heating demand, re-determining the frequency value and the current value of the pulse current. The embodiments of the present disclosure further provide a control unit and a heating circuit.

公开(公告)号：US11772515B2

公开(公告)日：2023-10-03

申请号：US17385879

申请日：2021-07-26

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: B60L58/27 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H01M10/657 ,  B60L58/12 ,  H01M10/42

CPC classification number: B60L58/27 ,  B60L58/12 ,  H01M10/425 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H01M10/657 ,  B60L2240/545 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A battery pack heating system includes: a main positive switch, a main negative switch, an inverter, an external port, a motor, a control module for auxiliary charging branch, a vehicle control unit, a motor control unit, and a battery management module. The battery management module is configured to send, when an acquired state parameter of the battery pack meets a preset low-temperature-low-power condition, a low-temperature-low-power heating request instruction to the vehicle control unit and the control module respectively. The control module is configured to send a first control signal to control the auxiliary charging branch to be connected. The vehicle control unit is configured to send a second control signal to enable the motor control unit to control on-off of the switch modules in the inverter, and a third control signal to enable the battery management module to control on-off of the main positive switch.

公开(公告)号：US11515588B2

公开(公告)日：2022-11-29

申请号：US16860408

申请日：2020-04-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinxin Du ,  Zhimin Dan ,  Fuping Luo ,  Shengwei Wang ,  Tiancong Wang ,  Xiyang Zuo

IPC: H01M10/637 ,  H01M10/615 ,  H02J7/00

Abstract: Disclosed are a heating method for a rechargeable battery, a control unit and a heating circuit. The heating method comprises: determining a frequency value of a pulse current for heating the rechargeable battery in response to a heating command of the rechargeable battery; determining a current value of the pulse current according to the frequency value and an acquired state parameter of the rechargeable battery; judging whether the current value satisfies a preset heating demand; if the current value satisfies the heating demand, generating the pulse current under control according to the frequency value; if the current value does not satisfy the heating demand, re-determining the frequency value and the current value of the pulse current. The embodiments of the present disclosure further provide a control unit and a heating circuit.

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：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.