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公开(公告)号：US12172548B2
公开(公告)日：2024-12-24
申请号：US17790398
申请日：2020-12-10
Applicant: BYD COMPANY LIMITED
Inventor： Heping Ling , Hua Pan , Feiyue Xie , Ri Huang , Yihao Zheng
IPC: B60L58/27 , H01M10/42 , H01M10/44 , H01M10/615 , H01M10/625 , H01M10/63 , H02J7/00 , H02P27/08
Abstract: The present disclosure relates to the technical field of vehicles, and provides a vehicle and an energy conversion device and a control method therefor. The energy conversion device includes a motor controller, a bus capacitor, a first switch module, a motor, and a second switch module. By controlling the first switch module and the second switch module to be turned on/off, a motor driving circuit can be formed by a battery pack, the first switch module, the bus capacitor, the motor controller, and the motor, and a charging and discharging circuit can be formed by the battery pack, the second switch module, the motor, the motor controller, and the bus capacitor.
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公开(公告)号：US11876197B2
公开(公告)日：2024-01-16
申请号：US17416781
申请日：2019-12-20
Applicant: BYD COMPANY LIMITED
Inventor： Heping Ling , Hua Pan , Yuxin Zhang , Guo Tian , Zhao Xie
IPC: H01M10/615 , H01M10/613 , H01M10/625 , H01M10/635 , H01M10/6567 , H01M10/663 , B60L58/27 , H02J7/00 , H01M10/48
CPC classification number: H01M10/615 , B60L58/27 , H01M10/48 , H01M10/486 , H01M10/613 , H01M10/625 , H01M10/635 , H01M10/6567 , H01M10/663 , H02J7/0047 , H02J7/007194 , H01M2220/20
Abstract: In a power battery heating method for a vehicle, when a current temperature value of a power battery is lower than a preset temperature value, and a heating condition of the power battery meets a preset condition, a three-phase inverter is controlled to cause a three-phase alternating current motor to generate heat according to heating energy, to heat a coolant flowing through the power battery, a preset quadrature-axis current that causes a torque value outputted by the motor to be an appropriate value is obtained, and a corresponding preset direct-axis current is obtained according to heating power of the power battery, so as to control, according to the preset direct-axis current and the preset quadrature-axis current, the three-phase inverter to adjust a phase current of the three-phase alternating current motor in the heating process, where a direction of the preset direct-axis current changes periodically in the heating process.
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公开(公告)号：US11876396B2
公开(公告)日：2024-01-16
申请号：US17416745
申请日：2019-12-17
Applicant: BYD COMPANY LIMITED
Inventor： Changjiu Liu , Hua Pan , Ronghua Ning , Yang Liu , Ning Yang
CPC classification number: H02J7/007182 , H02J7/04 , H02P27/08 , B60L15/20 , B60L50/51
Abstract: A motor control circuit includes a first switch module, a three-phase inverter, and a control module, where a power supply module, the first switch module, the three-phase inverter, and a three-phase alternating current motor form a current loop, the three-phase alternating current motor inputs or outputs a current by using a wire N extending from a connection point of three phase coils, and the control module controls the three-phase inverter, so that the motor control circuit receives a voltage of the power supply module and outputs a direct current. A wire N extends from the three-phase alternating current motor, and further forms different charging loops with the three-phase inverter, the three-phase alternating current motor, and the power battery.
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公开(公告)号：US12080863B2
公开(公告)日：2024-09-03
申请号：US17416884
申请日：2019-12-20
Applicant: BYD COMPANY LIMITED
Inventor： Yubo Lian , Heping Ling , Hua Pan , Yuxin Zhang , Hao Chen
IPC: H01M10/615 , B60L3/00 , B60L58/27 , H01M10/42 , H01M10/48 , H01M10/613 , H01M10/625 , H01M10/6571
CPC classification number: H01M10/615 , B60L3/0046 , B60L58/27 , H01M10/425 , H01M10/486 , H01M10/613 , H01M10/625 , H01M10/6571 , B60L2240/545
Abstract: This application provides a vehicle and a power battery heating apparatus and method thereof. In the method, when a current temperature value of a power battery is lower than a preset temperature value, and a heating condition of the power battery meets a preset condition, a three-phase inverter is controlled to cause a three-phase alternating current motor to generate heat to heat a coolant flowing through the power battery. A preset quadrature-axis current and a corresponding preset direct-axis current are obtained to control the three-phase inverter to adjust a phase current of the three-phase alternating current motor in the heating process, so that electromagnetic torque with a small torque value is outputted at a motor shaft. The electromagnetic torque causes the motor output shaft to output a pre-tightening force to the transmission mechanism, thereby eliminating an engagement gap and effectively avoiding jitters of the vehicle.
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公开(公告)号：US12040727B2
公开(公告)日：2024-07-16
申请号：US17764038
申请日：2020-08-18
Applicant: BYD COMPANY LIMITED
Inventor： Yubo Lian , Heping Ling , Jicheng Li , Hua Pan , Li Mou
Abstract: A cooperative control method is disclosed. The cooperative control method includes: acquiring a target heating power, a target driving power, and a target charging and discharging power; acquiring a first heating power of a motor coil according to the target charging and discharging power; acquiring a second heating power of the motor coil according to the target driving power; adjusting a first quadrature axis current and a first direct axis current to a target quadrature axis current and a target direct axis current to cause the difference between the sum of the first heating power and the second heating power and the target heating power to be within the preset range; and acquiring a sampling current value on each phase coil and a motor rotor position, and calculating a duty cycle of each phase bridge arm in a reversible PWM rectifier according to the above information.
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Patent Agency Ranking
公开(公告)号：US12266965B2
公开(公告)日：2025-04-01
申请号：US18505826
申请日：2023-11-09
Applicant: BYD COMPANY LIMITED
Inventor： Changjiu Liu , Hua Pan , Ronghua Ning , Yang Liu , Ning Yang
Abstract: A motor control circuit includes a first switch module, a three-phase inverter, and a control module. A power supply module, the first switch module, the three-phase inverter, and a three-phase alternating current motor form a current loop; midpoints of three phase legs of the three-phase inverter are respectively connected to three phase coils of the three-phase alternating current motor; the three-phase alternating current motor is configured to input or output a current by using a wire N extending from a connection point of the three phase coils; the control module is connected to the three-phase inverter, first switch module, three-phase alternating current motor, and power supply module; the control module is configured to control the three-phase inverter to enable the motor control circuit to receive a voltage of the power supply module and output a direct current, and to boost a voltage of the power supply module.
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公开(公告)号：US12221001B2
公开(公告)日：2025-02-11
申请号：US17763916
申请日：2020-08-18
Applicant: BYD COMPANY LIMITED
Inventor： Hua Pan , Jicheng Li , Feiyue Xie , Yuxin Zhang , Ning Yang
IPC: B60L53/24 , B60H1/00 , B60L58/26 , B60L58/27 , B60R16/033 , H02M7/797 , H02P25/22 , H02J7/14 , H02P27/06
Abstract: An energy conversion device is provided. The device includes: a reversible pulse width modulation (PWM) rectifier (11) and a motor coil (12), where the motor coil (12) includes at least a first winding unit and a second winding unit, and the first winding unit and the second winding unit are both connected with the reversible PWM rectifier (11). The first winding unit is connected with at least one of neutral lines in the second winding unit, where at least one neutral line of at least one of the winding units is connected with a first end of a first direct current (DC) charging and discharging port (3), the reversible PWM rectifier (11) is connected with a first end of a external battery (2) and a second end of the external battery (2) respectively, and a second end of the first DC charging and discharging port (3) is connected with the second end of the external battery (2).
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公开(公告)号：US12132182B2
公开(公告)日：2024-10-29
申请号：US18008091
申请日：2021-06-04
Applicant: BYD COMPANY LIMITED
Inventor： Yubo Lian , Heping Ling , Hua Pan , Lei Yan , Feiyue Xie
CPC classification number: H01M10/637 , B60L53/24 , B60L58/27 , H01M10/44 , H02P27/06
Abstract: The present disclosure relates to a battery energy processing device and method and a vehicle. The battery energy processing device includes: a bridge arm converter, having a first bus terminal connected with a positive electrode of a battery and a second bus terminal connected with a negative electrode of the battery; a motor winding, having a first end connected with a midpoint of the bridge arm converter; an energy storage device, respectively connected with a second end of the motor winding and the second bus terminal; and a controller, configured to control, in a first preset state, the bridge arm converter to charge and discharge the battery, so as to realize heating of the battery. In this way, the charging and discharging of the battery can be controlled, and internal resistance of the battery causes the battery to generate a large amount of heat, which causes a temperature rise of the battery, thereby realizing the heating of the battery.
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公开(公告)号：US11801764B2
公开(公告)日：2023-10-31
申请号：US17635620
申请日：2020-08-13
Applicant: BYD COMPANY LIMITED
Inventor： Yubo Lian , Heping Ling , Jicheng Li , Hua Pan , Feiyue Xie
Abstract: The present invention relates to the technical field of vehicles, and provides an energy conversion device and a vehicle. The energy conversion device includes a reversible pulse-width modulation (PWM) rectifier, a motor coil connected with the reversible PWM rectifier, a one-way conduction module, and a capacitor. A DC charging circuit or a DC discharging circuit is formed by an external DC port with an external battery by using the energy conversion device, and a driving circuit is formed by the external battery with the reversible PWM rectifier and the motor coil in the energy conversion device. The one-way conduction module is connected between a first end of the capacitor and a second end of the external DC port, or the one-way conduction module is connected between a second end of the capacitor and a first end of the external DC port.
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公开(公告)号：USD707158S1
公开(公告)日：2014-06-17
申请号：US29456867
申请日：2013-06-04
Applicant: BYD Company Limited
Designer： Ning Sun , Yongkang Guan , Hua Pan , Heping Ling , Yubo Lian
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