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公开(公告)号：US20230308013A1
公开(公告)日：2023-09-28
申请号：US18325966
申请日：2023-05-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuan YAO , Zhimin DAN , Meng LI , Yu YAN
CPC classification number: H02M1/44 , H02M3/33573 , H02M3/33576 , H02J7/007 , B60L53/31 , H02J2207/20
Abstract: A switching circuit includes a switching transistor, a metal unit, and a branch. The metal unit is provided at the switching transistor, and the branch is electrically connected between a ground and at least one of the switching transistor or between the metal unit. The branch includes a capacitor, and the capacitor is configured to discharge radiated interference.
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公开(公告)号：US20230299606A1
公开(公告)日：2023-09-21
申请号：US18186948
申请日：2023-03-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiyang ZUO , Yu YAN , Zhimin DAN , Zhanliang LI
IPC: H02J7/00 , H01M10/44 , H01M10/48 , H01M10/615 , H01M10/657
CPC classification number: H02J7/007182 , H01M10/443 , H01M10/488 , H01M10/615 , H01M10/657 , H02J7/00032 , H02J7/0048 , H02J7/007194 , H02J2207/20
Abstract: A charging and heating apparatus includes a power unit configured to be connected to a battery to be charged/discharged and perform voltage conversion on a received voltage and current and output a converted voltage to the battery, a unidirectional/bidirectional conversion unit connected to the power unit and configured to output a bidirectional alternating current or a preset current to the power unit, and a control unit connected to the unidirectional/bidirectional conversion unit and configured to, in response to the battery being in a heating mode, control the unidirectional/bidirectional conversion unit to output the bidirectional alternating current to the corresponding power unit, such that the battery self-heats under excitation of the bidirectional alternating current, and in response to the battery being in a charge/discharge mode, control the unidirectional/bidirectional conversion unit to output the preset current to the power unit, such that the battery is charged/discharged.
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73.发明公开公开(公告)号：US20230299374A1
公开(公告)日：2023-09-21
申请号：US18322897
申请日：2023-05-24
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaojian HUANG , Zhimin DAN , Yizhen HOU , Wei ZHANG
IPC: H01M10/615 , H01M10/625 , H01M10/637 , H02J7/00
CPC classification number: H01M10/615 , H01M10/625 , H01M10/637 , H02J7/007182 , H02J7/007192 , H01M2220/20
Abstract: A battery heating apparatus configured to be connected to a traction battery and heat the traction battery. The battery heating apparatus includes a heating module including a first leg, a second leg, and an energy storage element, and a control module configured to control the first leg and the second leg to form a loop via which the traction battery discharges to the energy storage element and a loop via which the energy storage element charges the traction battery, so as to heat the traction battery during discharge and charge.
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74.发明公开公开(公告)号：US20230208327A1
公开(公告)日：2023-06-29
申请号：US17880690
申请日：2022-08-04
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xinwei CHEN , Yuanmiao ZHAO , Da XIE , Yiqi LIANG , Yizhen HOU , Zhimin DAN
Abstract: An electric vehicle control system and a control method, an electric vehicle power-on method, an electric vehicle power-off method, and an electric vehicle charging method are disclosed in this application. The control system includes a domain, control unit controlling an electric vehicle, a current sampling unit sampling the current of a power battery and a motor of the electric vehicle and sending sampling signals to the domain control unit, and electrical device, driven by the power battery, sampling the current flowing through it and sending the sampling signals to the domain control unit. The domain control unit, according to the sampling signals sent by the electrical device and the current sampling unit, manages the power battery and controls a motor driver module and the electrical device. The structure of the control system and the control policy are simplified and the power-on and power-off time is shortened.
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公开(公告)号：US20230198282A1
公开(公告)日：2023-06-22
申请号：US18172535
申请日：2023-02-22
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhanliang LI , Yuanmiao ZHAO , Xinwei CHEN , Xiaojian HUANG , Yu YAN , Zhimin DAN
IPC: H02J7/00
CPC classification number: H02J7/007194 , H02J7/0013
Abstract: A self-heating control circuit includes a control module configured to obtain a cell temperature of each of two battery packs connected in parallel and send a trigger signal in response to the cell temperature being lower than a threshold. The two battery packs include a first battery pack and a second battery pack. The control circuit further includes a switch module disposed at a charging and discharging circuit of the first battery pack. A control terminal of the switch module is connected to the control module and is configured to cut off the charging and discharging circuit upon reception of the trigger signal. The control circuit also includes an excitation module configured to form a path with the two battery packs upon cut-off of the charging and discharging circuit, and generate an excitation current, so that the excitation current flows back and forth between the two battery packs.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20230060510A1
公开(公告)日：2023-03-02
申请号：US17858832
申请日：2022-07-06
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiong ZHENG , Xianxi PAN , Yu LUO , Zhimin DAN
Abstract: This application provides a method and device for updating calibration data of an electric motor, an electronic device, and a storage medium. The method includes: obtaining an initial calibration datum of the electric motor; determining whether a deviation between the initial calibration datum and a theoretical calculation datum exceeds a first threshold; recalibrating the electric motor based on the preset calibration parameter when the deviation between the initial calibration datum and the theoretical calculation datum exceeds the first threshold, and obtaining an updated calibration datum; determining whether a deviation between the updated calibration datum and the initial calibration datum exceeds a second threshold; and updating the initial calibration datum based on the updated calibration datum when the deviation between the updated calibration datum and the initial calibration datum does not exceed the second threshold, thereby updating and rectifying the initial calibration datum.
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公开(公告)号：US20220239140A1
公开(公告)日：2022-07-28
申请号：US17547691
申请日：2021-12-10
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhanliang LI , Zhimin DAN , Yu YAN , Weiping SUN , Shuyun XIONG
IPC: H02J7/00
Abstract: An embodiment of the present application discloses a charging method, including: acquiring a state parameter of a power battery by a power conversion apparatus; setting a charging mode to a pulse charging mode by the power conversion apparatus when the battery temperature is lower than a first preset threshold; and converting charging power of a charging apparatus and then charging the power battery by the power conversion apparatus in the pulse charging mode. Through the technical solution, the power conversion apparatus acquires a battery temperature of the power battery, when the battery temperature is lower than the first preset threshold, the power conversion apparatus converts the charging power output by the charging apparatus, and outputs a pulse current to charge the tract battery, to prevent the charging apparatus directly charging the power battery in a low temperature, thereby ensuring the performance of the power battery.
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公开(公告)号：US20210391736A1
公开(公告)日：2021-12-16
申请号：US15733803
申请日：2020-06-15
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Meng LI , Zhimin DAN , Yizhen HOU
IPC: H02J7/00 , H01M10/48 , H01M10/42 , H01M10/44 , H01M10/052
Abstract: The present disclosure provides a control device, an energy conversion system, an energy conversion method and a storage medium. The control device includes: a detection unit configured to detect a first voltage between a positive electrode of the energy storage device and a first end of an energy conversion device, a second voltage between a negative electrode of the energy storage device and a second end of the energy conversion device, and a third voltage between the positive electrode and the negative electrode of the energy storage device; a processing unit configured to calculate a resistance value corresponding to the energy conversion device according to the first voltage, the second voltage, and the third voltage; when the value of resistance is greater than a resistance threshold value, controlling the energy storage device to supply power to the electrical equipment through the energy conversion device.
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79.发明申请公开(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.
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公开(公告)号：US20210367441A1
公开(公告)日：2021-11-25
申请号：US16976137
申请日：2019-12-06
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Jinbo CAI , Zhimin DAN , Wei ZHANG , Yizhen HOU , Xiong ZHENG
IPC: H02J7/00 , H03K17/687 , H03K17/567
Abstract: A charge and discharge circuit includes: a charging loop, including a battery pack, a first switch module and a charging device connected in series, where, the charging loop is configured to charge the battery pack using the charging device, and precharge the charging device; and a discharging loop, including the battery pack, a second switch module and an electric device connected in series, where, the discharging loop is configured to make the battery pack discharge to the electric device, and precharge the electric device; where, the first switch module and the second switch module each include at least one switch, and a part of switches in the first switch module and the second switch module are semiconductor switches, and the other part of the switches in the first switch module and the second switch module are relays.
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