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51.发明公开公开(公告)号：US20230291219A1
公开(公告)日：2023-09-14
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
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.
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公开(公告)号：US20230208149A1
公开(公告)日：2023-06-29
申请号：US17940318
申请日：2022-09-08
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Diping LIU , YU YAN , Xiyang ZUO , Xianxi PAN , Bao LI , Zhimin DAN
IPC: H02J7/00
CPC classification number: H02J7/00034 , H02J7/00716 , H02J7/0032
Abstract: A battery charging control method applicable to a vehicle electrical system that includes a current control unit including a semiconductor device. Two ends of the current control unit are connected to a battery and a charging power supply, respectively. The method includes controlling, when a temperature of the battery is below a preset temperature, the current control unit to be in a first state in which the semiconductor device is reversely connected in a circuit, sending a first charging request including a first charging current required to heat the battery to the preset temperature, controlling, when the temperature of the battery reaches the preset temperature, the current control unit to be in a second state in which the semiconductor device is disconnected from the circuit or forwardly connected in the circuit, and sending a second charging request including a second charging current at which the battery is charged.
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公开(公告)号：US20230070522A1
公开(公告)日：2023-03-09
申请号：US17981551
申请日：2022-11-07
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Shuyun XIONG , Zhimin DAN , Yu YAN , Zhanliang LI , Weiping SUN
Abstract: Embodiments of the present application provides a charging method and a power conversion equipment, which can effectively ensure a normal charging of a traction battery. The charging method is used for charging the traction battery, the method includes: obtaining, by a power conversion equipment, a battery state parameter of the traction battery; sending, by the power conversion equipment, a charging information to a charging pile, the charging information includes a direct current charging parameter calculated from a pulse charging parameter; receiving, by the power conversion equipment, a direct current output by the charging pile, on the basis of the direct current charging parameter; converting, by the power conversion equipment, the direct current into a pulse current on the basis of the pulse charging parameter, the pulse current is used for charging the traction battery; where, the battery state parameter is used for determining the pulse charging parameter.
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公开(公告)号：US20230069189A1
公开(公告)日：2023-03-02
申请号：US17709473
申请日：2022-03-31
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Zhanliang LI , Zhimin DAN , Yu YAN , Miaomiao ZHANG
Abstract: Embodiments of the present application provide a vehicle control method, module, and system, a device and a medium. The method includes: acquiring, under a condition that it is determined to install a target battery provided by a battery swapping station for the vehicle, a network address of a first battery management unit of the target battery; requesting to establish a wireless communication connection between a control module and the first battery management unit, based on the network address of the first battery management unit of the target battery; transmitting, under a condition that the wireless communication connection between the control module and the first battery management unit is successfully established, a first prompt signal to a target object, where the first prompt signal is used to prompt the target object to perform a relevant operation for allowing the vehicle to leave a battery swapping area.
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公开(公告)号：US20230067971A1
公开(公告)日：2023-03-02
申请号：US17858864
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 permanent-magnet synchronous machine control method and device, and a permanent-magnet synchronous machine control system. The method includes: obtaining a d-axis current id and a q-axis current iq in a permanent-magnet synchronous machine control loop at a current moment; obtaining a fifth-order harmonic current id5th and a seventh-order harmonic current id7th in the d-axis current id in the permanent-magnet synchronous machine control loop at the current moment, and a fifth-order harmonic current iq5th and a seventh-order harmonic current iq7th in the q-axis current iq in the permanent-magnet synchronous machine loop at the current moment; determining a d-axis current idk+1 at a next moment in each switch state; determining a q-axis current iqk+1 at the next moment in each switch state based on the first current idk, the second current iqk, and the second voltage in each switch state; and determining a control policy of the permanent-magnet synchronous machine.
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Patent Agency Ranking
公开(公告)号：US20230041713A1
公开(公告)日：2023-02-09
申请号：US17563207
申请日：2021-12-28
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaojian HUANG , Zhimin DAN , Jinfeng GAO , Jin HUANG
IPC: B60L58/27 , B60L1/02 , B60L58/12 , H01M10/615 , H01M10/625
Abstract: The present application provide a control method of a power battery heating system. The method includes: controlling all upper bridge arms of a first bridge arm group and all lower bridge arms of a second bridge arm group to be turned on, and controlling all lower bridge arms of the first bridge arm group and all upper bridge arms of the second bridge arm group to be turned off, so as to form a first loop; controlling all the lower bridge arms of the first bridge arm group and all the upper bridge arms of the second bridge arm group to be turned on, and controlling all the upper bridge arms of the first bridge arm group and all the lower bridge arms of the second bridge arm group to be turned off, so as to form a second loop. The method is used to heat the power battery.
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公开(公告)号：US20220345023A1
公开(公告)日：2022-10-27
申请号：US17856453
申请日：2022-07-01
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jinfeng GAO , Guiying LIN , Weichen HE , Zhimin DAN , Lijun HANG , Yuanbin HE , Ke CHEN , Jiarui LIAO
Abstract: Embodiments of this application provide a converter control method, a converter control apparatus, and a readable storage medium. The control method includes: obtaining a real-time input voltage and a real-time output voltage of a converter; determining a corresponding real-time closed-loop control output value of the converter based on the real-time input voltage and the real-time output voltage by using a closed-loop control algorithm; determining a real-time control strategy of a switch tube of the converter from at least three control strategies based on the real-time closed-loop control output value; and controlling the switch tube based on the determined real-time control strategy. The control method is used to implement efficient and high-precision voltage stabilization control.
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58.发明申请公开(公告)号：US20220118879A1
公开(公告)日：2022-04-21
申请号：US17566718
申请日：2021-12-31
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Xiao WANG , Zhimin DAN
Abstract: The embodiments of the present application provide a low-voltage power transmission system, a DCDC converter and a control method, a device and a medium, relating to the field of battery power. The control method includes: acquiring a charging signal; acquiring a vehicle start signal; acquiring an enabling signal; when each of the charging signal, the vehicle activating start signal, and the enabling signal is at a low level, and no communication message sent by a battery management system (BMS) is received, determining that a vehicle is in a power-off state and enters a sleep mode; when a duration of the sleep mode reaches a preset duration, performing self-awakening, and outputting, to the BMS, an awakening signal for awakening the BMS and making the BMS enter a working mode.
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公开(公告)号：US20210408817A1
公开(公告)日：2021-12-30
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: 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.
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60.发明申请公开(公告)号：US20210354593A1
公开(公告)日：2021-11-18
申请号：US17390873
申请日：2021-07-31
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Tiancong WANG , Xiyang I. ZUO , Zhimin DAN , Xiong ZHENG , Bao LI
IPC: B60L58/27 , H02J7/00 , H02P29/68 , H01M10/615 , H01M10/625 , H01M10/633 , H01M10/44
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.
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