公开(公告)号：US20210043990A1

公开(公告)日：2021-02-11

申请号：US17078077

申请日：2020-10-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhimin DAN ,  Xiyang ZUO ,  Wei ZHANG ,  Yizhen HOU ,  Guowei LI ,  Xingyuan WU ,  Yanru LI

IPC: H01M10/63 ,  H01M10/615 ,  H01M10/625 ,  H01M10/42 ,  H01M10/48 ,  H02J7/00 ,  H02P3/18 ,  H02P27/06

Abstract: The present disclosure provides a battery heating system and a control method thereof. The battery heating system includes a main positive switch, a main negative switch, an inverter, a motor, and a battery management unit. The inverter includes a first phase bridge arm, a second phase bridge arm and a third phase bridge arm connected in parallel. A motor controller in the inverter is configured to output a drive signal to a target upper-bridge-arm switch unit and a target lower-bridge-arm switch unit, so as to control the target upper-bridge-arm switch unit and the target lower-bridge-arm switch unit to be periodically turned on and off. The battery management unit is configured to collect state parameters of the battery pack. When the state parameters of the battery pack meet preset heating conditions, a control signal is sent to the motor controller to control the motor controller to output the drive signal.

公开(公告)号：US20200207237A1

公开(公告)日：2020-07-02

申请号：US16370975

申请日：2019-03-30

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang ZUO ,  Zhimin DAN ,  Wei ZHANG ,  Yizhen HOU ,  Guowei LI ,  Xingyuan WU ,  Yanru LI

IPC: B60L58/27 ,  B60L50/51 ,  B60L58/12

Abstract: The disclosure provides a battery heating system and a control method thereof. The system includes a first switch, a second switch, a switch component, a motor, and a main controller. The first switch, the second switch, the switch component and the main controller are integrated in a same housing. The main controller is to determine, based on a state parameter of the battery pack, that the battery pack needs to be heated, and to send a battery heating request to a vehicle controller, so as to enable the vehicle controller to send a battery heating instruction to the main controller according to the battery heating request in a case where a vehicle is in a static state and the motor is not operating; and to control, based on the battery heating instruction, the first switch, the second switch and the switch component so as to heat the battery pack.

公开(公告)号：US20210387548A1

公开(公告)日：2021-12-16

申请号：US17458640

申请日：2021-08-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yanru LI ,  Xingyuan WU ,  Guowei LI ,  Wei ZHANG ,  Zhimin DAN ,  Xiyang zuo

IPC: B60L58/26 ,  H01M10/6568 ,  B60H1/00

Abstract: This application discloses a thermal management system for a battery pack and a thermal management system for an electric vehicle. the thermal management system for the battery pack includes: a thermal management device for the battery pack, a processor, and a solenoid valve network connected to the thermal management device for the battery pack. An external port of the solenoid valve network is connected to an external cooling system. The processor is configured to control operating status of a solenoid valve in the solenoid valve network, so that the thermal management device for the battery pack heats the battery pack by using heat generated by the external cooling system.

公开(公告)号：US20210245628A1

公开(公告)日：2021-08-12

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 ,  H02J7/00 ,  H01M10/615 ,  H01M10/63

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：US20200212520A1

公开(公告)日：2020-07-02

申请号：US16297233

申请日：2019-03-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhimin DAN ,  Xiyang ZUO ,  Wei ZHANG ,  Yizhen HOU ,  Guowei LI ,  Xingyuan WU ,  Yanru LI

IPC: H01M10/63 ,  H02P3/18 ,  H02P27/06 ,  H02J7/00 ,  H01M10/42 ,  H01M10/615 ,  H01M10/48 ,  H01M10/625

Abstract: The present disclosure provides a battery heating system and a control method thereof. The battery heating system includes a main positive switch, a main negative switch, an inverter, a motor, and a battery management unit. The inverter includes a first phase bridge arm, a second phase bridge arm and a third phase bridge arm connected in parallel. A motor controller in the inverter is configured to output a drive signal to a target upper-bridge-arm switch unit and a target lower-bridge-arm switch unit, so as to control the target upper-bridge-arm switch unit and the target lower-bridge-arm switch unit to be periodically turned on and off. The battery management unit is configured to collect state parameters of the battery pack. When the state parameters of the battery pack meet preset heating conditions, a control signal is sent to the motor controller to control the motor controller to output the drive signal.