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公开(公告)号：US20230216316A1
公开(公告)日：2023-07-06
申请号：US18111895
申请日：2023-02-21
发明人： Xiangtao LI , Bao LI , Kai WU
CPC分类号： H02J7/0024 , H02J7/0036 , H01M10/48 , H01M10/425 , H02J7/00712 , H01M2220/20
摘要： Embodiments of this application provide a battery control circuitry, a battery control method, and an electric apparatus. The battery control circuitry may include a charging interface, a switch circuit, a first battery pack; a second battery pack, where a positive electrode of the second battery pack may be connected to a negative electrode of the first battery pack; and a control circuit, configured to: when detecting that the charging interface receives a charging signal from a low-voltage platform, control the switch circuit to switch to a first connection state, where in the first connection state, a target battery pack may be connected in series to the charging interface to form a first loop, so as to charge the target battery pack, where the target battery pack may be the first battery pack or the second battery pack.
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2.发明申请公开(公告)号：US20230034292A1
公开(公告)日：2023-02-02
申请号：US17565541
申请日：2021-12-30
发明人： Xiyang ZUO , Yu YAN , Bao LI , Xiao WANG , Zhanliang LI , Longzhen LIN
摘要： Embodiments of the present application provide a charging and discharging apparatus, a method for charging a battery and a charging and discharging system, which are capable of ensuring security performance of a battery. The charging and discharging apparatus includes a bidirectional AC/DC converter, a first DC/DC converter, a second DC/DC converter and a control unit. The control unit is configured to: receive a first charging request transmitted by the BMS and control an AC power source and/or an energy storage unit to charge the battery; receive a first discharging request transmitted by the BMS and discharging a power of the battery according to the first discharging request; and receive a second charging request transmitted by the BMS and control the AC power source and/or the energy storage unit to charge the battery.
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3.发明公开公开(公告)号：US20240291297A1
公开(公告)日：2024-08-29
申请号：US18655367
申请日：2024-05-06
发明人： Xiyang ZUO , Xiao WANG , Xiangtao LI , Bao LI
CPC分类号： H02J7/00306 , B60L53/20 , B60L53/62 , H02J7/0013 , H02J7/0048 , H02J7/00712 , B60L2210/10 , H02J2207/20
摘要： The present application provides a method and a device for charging and discharging a battery system, the battery system and an electric vehicle. The battery system includes a low-voltage battery and a high-voltage battery, the high-voltage battery and the low-voltage battery are both configured to be connected with a load. The method for charging and discharging the battery system includes steps of obtaining a first power of the load when the load is in operation; obtaining a first SOC value of the low-voltage battery and a second SOC value of the high-voltage battery; and controlling charge-and-discharge processes of the high-voltage battery and the low-voltage battery according to the first power, the first SOC value and the second SOC value.
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公开(公告)号：US20220376320A1
公开(公告)日：2022-11-24
申请号：US17877208
申请日：2022-07-29
发明人： Xiaojian HUANG , Zhimin DAN , Bao LI , Xiyang ZUO
IPC分类号： H01M10/63 , H01M10/615 , H01M10/625 , H01M10/48 , H02P29/66 , B60L58/27 , G01K3/00 , G01K3/10 , G01R31/34
摘要： Disclosed is a traction battery self-heating control method and a device. Acquiring a second temperature of a rotor at a current sampling time according to system parameters and a first temperature of the rotor at a previous sampling time, and estimating a third temperature of the rotor at a next sampling time according to the first temperature and the second temperature, and stopping the self-heating of the traction battery when the third temperature reaches a demagnetization temperature of the rotor. Whether to stop the self-heating of the traction battery is determined by estimating a rotor temperature under the self-heating condition, and comparing the rotor temperature with the demagnetization temperature of the rotor, and thus the self-heating control of the traction battery is realized.
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5.发明公开公开(公告)号：US20230219543A1
公开(公告)日：2023-07-13
申请号：US17875439
申请日：2022-07-28
发明人： Haiming QIN , Bao LI , Kai WU
IPC分类号： B60T8/1761 , B60T8/171 , B60T13/74
CPC分类号： B60T8/1761 , B60T8/171 , B60T13/745 , B60T2220/04 , B60T2250/04 , B60T2270/88
摘要： This application provides a torque compensation method for a vehicle, a torque compensation apparatus of a vehicle, and an associated computer-readable storage medium. The torque compensation method includes: when a vehicle control module determines that the vehicle is in a sliding state during a brake idle stroke, obtaining, by the vehicle control module, a pressure of a brake master cylinder of the vehicle, and controlling a motor of the vehicle based on the pressure of the brake master cylinder to output a compensation torque. In this application, a range of the brake idle stroke of the vehicle can be precisely determined, so as to control the motor of the vehicle to output the compensation torque in a timely manner, thereby effectively suppressing sliding during the brake idle stroke of the vehicle and ensuring safe driving.
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公开(公告)号：US20230191868A1
公开(公告)日：2023-06-22
申请号：US17888506
申请日：2022-08-16
发明人： Chuanhui ZHANG , Bao LI , Kai WU
IPC分类号： B60H1/00 , B60H1/32 , H01M10/6564 , H01M10/613
CPC分类号： B60H1/00278 , B60H1/00885 , B60H1/3205 , H01M10/6564 , H01M10/613 , B60H2001/00307 , B60H2001/00928
摘要： The embodiments of this application relate to the technical field of battery, and in particular, to a thermal management system, a method and an equipment. In this thermal management system, a compressor and a condenser form a cooling loop with a thermal exchange pipeline of the battery, and a compressor and an evaporator form a heating loop with a thermal exchange pipeline, so that this thermal management system can provide both cooling and heating for battery, in comparison with the direct cooling system and heating film, this thermal management system features simple structure and high reliability. In addition, the locations of the condenser and the evaporator can be reasonably arranged as required to achieve the secondary utilization of hot air and cold air.
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公开(公告)号：US20220368270A1
公开(公告)日：2022-11-17
申请号：US17878424
申请日：2022-08-01
发明人： Xiaojian HUANG , Zhimin DAN , Bao LI , Xiyang ZUO
摘要： Disclosed is a motor, a control method, a power system, and an electric vehicle. Each phase stator winding of the motor includes two sub-winding sets. When a traction battery needs to be heated, the two sub-winding sets of the motor store electrical energy and provide alternating currents to the traction battery through an inverter, so that the traction battery uses its internal resistance for heating. In addition, the two sub-winding sets generate opposite magnetic fields which cancel each other out, so that the strength of the magnetic field inside each phase stator winding and the air gap magnetic flux are reduced, thereby alleviating the heat generation and NVH problems of the motor.
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公开(公告)号：US20220368262A1
公开(公告)日：2022-11-17
申请号：US17878368
申请日：2022-08-01
发明人： Xiaojian HUANG , Xiyang ZUO , Zhimin DAN , Bao LI
摘要： An electric motor, a power system, a control method, and an electric vehicle. The electric motor comprises a first N-phase winding set and a second N-phase winding set, wherein the first N-phase winding set and the second N-phase winding set are both used for being connected to a traction battery by means of a conversion module. When the traction battery starts to be heated, the first N-phase winding set and the second N-phase winding set are powered on. The direction of a magnetic field generated by the first winding set and the direction of a magnetic field generated by the second winding set have a phase difference, such that the magnetic fields counteract each other; and a magnetic field intensity in a stator winding of each phase is reduced, and an air-gap magnetic flux is also reduced, thereby alleviating the problems of electric motor heating and electric motor NVH.
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公开(公告)号：US20210354592A1
公开(公告)日：2021-11-18
申请号：US17385879
申请日：2021-07-26
发明人： Xiyang ZUO , Zhimin DAN , Xiong ZHENG , Bao LI , Tiancong WANG
IPC分类号： B60L58/27 , B60L58/12 , H01M10/615 , H01M10/625 , H01M10/633 , H01M10/657 , H01M10/42
摘要： 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.
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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
发明人： Diping LIU , YU YAN , Xiyang ZUO , Xianxi PAN , Bao LI , Zhimin DAN
IPC分类号： H02J7/00
CPC分类号： H02J7/00034 , H02J7/00716 , H02J7/0032
摘要： 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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