公开(公告)号：US11731529B2

公开(公告)日：2023-08-22

申请号：US17463521

申请日：2021-08-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhong Liu ,  Shuyun Xiong ,  Jinbo Cai

IPC: H02J7/00 ,  B60L58/18 ,  B60L50/60 ,  B60L15/20 ,  B60L58/12 ,  H02J7/34 ,  B60L58/20

CPC classification number: B60L58/18 ,  B60L15/20 ,  B60L50/60 ,  B60L58/12 ,  B60L58/20 ,  H02J7/0014 ,  H02J7/00032 ,  H02J7/0048 ,  H02J7/342 ,  B60L2210/10 ,  B60L2270/00 ,  H02J2207/20

Abstract: The embodiments of the present application provide a power supply apparatus, a battery management system, a power supply system, a control method and a medium. The method includes: controlling, under a condition that a vehicle is in a parking state, a first battery pack of a power supply apparatus to supply power to a first load of the vehicle, and controlling the first battery pack and a second battery pack of the power supply apparatus to stop supplying power to a second load of the vehicle; acquiring, in a process of supplying power to the first load, a capacity parameter of the first battery pack; controlling, under a condition that the capacity parameter of the first battery pack is lower than a first preset capacity threshold, a direct current converter to transmit electric energy of the second battery pack to the first battery pack.

公开(公告)号：US12119662B1

公开(公告)日：2024-10-15

申请号：US18737425

申请日：2024-06-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Miaomiao Zhang ,  Weilong Feng ,  Shuyun Xiong

IPC: H02J3/46

CPC classification number: H02J3/46 ,  H02J2300/24

Abstract: A circuit includes: a DC-AC module, a DC-DC module, and a control module. The control module is configured to calculate, according to an actual output power of a plurality of photovoltaic systems and an output power demand value of the DC-AC module, AC voltages and DC voltages under a plurality of different bus voltage setting values; determine, according to the different bus voltage setting values and the AC voltages and the DC voltages under the different bus voltage setting values, a target bus voltage value, a target AC voltage value, and a target DC voltage value when the energy storage module reaches maximum charging power; and control the plurality of photovoltaic systems, the DC-AC module, and the DC-DC module to perform output correspondingly according to the target bus voltage value, the target AC voltage value, and the target DC voltage value.

公开(公告)号：US20220185145A1

公开(公告)日：2022-06-16

申请号：US17463521

申请日：2021-08-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhong Liu ,  Shuyun Xiong ,  Jinbo Cai

IPC: B60L58/18 ,  H02J7/00 ,  B60L58/12 ,  B60L50/60 ,  B60L15/20

Abstract: The embodiments of the present application provide a power supply apparatus, a battery management system, a power supply system, a control method and a medium. The method includes: controlling, under a condition that a vehicle is in a parking state, a first battery pack of a power supply apparatus to supply power to a first load of the vehicle, and controlling the first battery pack and a second battery pack of the power supply apparatus to stop supplying power to a second load of the vehicle; acquiring, in a process of supplying power to the first load, a capacity parameter of the first battery pack; controlling, under a condition that the capacity parameter of the first battery pack is lower than a first preset capacity threshold, a direct current converter to transmit electric energy of the second battery pack to the first battery pack.

公开(公告)号：US12095301B2

公开(公告)日：2024-09-17

申请号：US17980860

申请日：2022-11-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shuyun Xiong ,  Yu Yan ,  Zhimin Dan ,  Zhanliang Li ,  Weiping Sun

IPC: B60L53/62 ,  B60L58/12 ,  H01M10/42 ,  H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  B60L53/66

CPC classification number: H02J7/00711 ,  B60L53/62 ,  B60L58/12 ,  H01M10/425 ,  H01M10/443 ,  H01M10/46 ,  H02J7/00036 ,  H02J7/0047 ,  H02J7/00712 ,  H02J7/007194 ,  B60L53/66 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A charging method, a battery management system for a traction battery and a charging pile are provided, which can effectively ensure normal charging of an electric vehicle. The charging method is used for charging a traction battery, and the method includes: determining, by the battery management system (BMS) of the traction battery, a pulse charging demand parameter according to a battery state parameter of the traction battery; and sending a pulse charging information to a charging pile by the BMS, the pulse charging information including the pulse charging demand parameter for indicating the charging pile to output a pulse current for charging the traction battery.

公开(公告)号：US20220407338A1

公开(公告)日：2022-12-22

申请号：US17561239

申请日：2021-12-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanliang Li ,  Yu Yan ,  Zhimin Dan ,  Shuyun Xiong ,  Weiping Sun ,  Xiyang Zuo

IPC: H02J7/00 ,  G01R31/382

Abstract: The present application provides a charging control method and apparatus, a battery management system and a readable storage medium. The charging control method includes: obtaining a battery temperature and a battery state of charge; determining a pulse charging frequency according to the battery temperature, the battery state of charge and a pre-calibrated corresponding relationship; obtaining a preset waveform characteristic of a pulse charging waveform; where the waveform characteristic includes a ratio range of an area of a positive pulse waveform to an area of a negative pulse waveform in each pulse cycle of the pulse charging waveform; and generating a charging request according to the pulse charging frequency and the waveform characteristic and transmitting the charging request to a charging device. The method is used for improving charging stability and safety of a battery.