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公开(公告)号：US20220348094A1
公开(公告)日：2022-11-03
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
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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2.发明公开公开(公告)号：US20240223118A1
公开(公告)日：2024-07-04
申请号：US18606204
申请日：2024-03-15
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Heping LING , Hua PAN , Feiyue XIE , Lijun ZHANG
CPC classification number: H02P27/085 , H02J7/0063 , H02P29/62 , H02J2207/20
Abstract: A motor drive apparatus includes a three-phase inverter and a three-phase motor. A first terminal of the three-phase inverter is connected to a positive electrode of a power battery. A second terminal of the three-phase inverter is connected to a negative electrode of the power battery Three phase coils of the three-phase motor are respectively connected to midpoints of three phase legs of the three-phase inverter. The motor drive apparatus is configured to simultaneously control (i) a process of charging the power battery by a power supply module, (ii) a torque of the three-phase motor at a zero output, and (iii) the three-phase inverter and the three-phase motor to heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase motor.
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公开(公告)号：US20230038790A1
公开(公告)日：2023-02-09
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 , H02P27/08 , H02J7/00 , H01M10/42 , H01M10/44 , H01M10/615 , H01M10/625 , H01M10/63
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：US20230238603A1
公开(公告)日：2023-07-27
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
IPC: H01M10/637 , B60L53/24 , B60L58/27 , H02P27/06 , H01M10/44
CPC classification number: H01M10/637 , B60L53/24 , B60L58/27 , H02P27/06 , H01M10/44
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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Patent Agency Ranking
公开(公告)号：US20220294380A1
公开(公告)日：2022-09-15
申请号：US17635636
申请日：2020-08-13
Applicant: BYD COMPANY LIMITED
Inventor： Feiyue XIE , Changjiu LIU , Jicheng LI , Lei HU , Yihao ZHENG
Abstract: The disclosure provides a motor and an energy conversion device. The motor includes a motor coil having x sets of windings. A number of phases of the x sets of windings is mx. In each of the x sets of windings, each phase winding includes nx coil branches. A first end of each of the nx coil branches is connected with a first end of a coil branch separated from the coil branch by an electrical angle of 360 degrees, to form mx phase endpoints. A second end of each of the nx coil branches of each phase winding is connected with a second end of a coil branch separated from the coil branch by an electrical angle of P*(360*k1+360/mx) degrees to form nx neutral points, nx≥mx≥2, nx≥3, p=±1, 1≤k1≤(nx−1), and mx, nx, and k1 are integers.
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公开(公告)号：US20220085746A1
公开(公告)日：2022-03-17
申请号：US17416853
申请日：2019-12-17
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Heping LING , Hua PAN , Feiyue XIE , Lijun ZHANG
Abstract: The present disclosure discloses a motor drive apparatus, a method for controlling the same, a vehicle, and a readable storage medium, where the control method includes: obtaining a required heating power and a required charging power; and adjusting a current value and direction of each phase current of a three-phase motor based on the required heating power, the required charging power, and an output of the motor at a zero torque, to simultaneously control a process of charging a power battery by a power supply module, the torque of the three-phase motor at a zero output, and a three-phase inverter and the three-phase motor to heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase motor.
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公开(公告)号：US20220355674A1
公开(公告)日：2022-11-10
申请号：US17622626
申请日：2020-06-24
Applicant: BYD COMPANY LIMITED
Inventor： Lei YAN , Jicheng LI , Ye LEI , Feiyue XIE , Sijia ZHENG
Abstract: An energy conversion apparatus and a vehicle are provided. The energy conversion apparatus includes a motor coil of a motor (101), a bridge arm converter (102), a bus capacitor (103) connected to the bridge arm converter (102) in parallel, and a controller (104) connected to the bridge arm converter (102). When the energy conversion apparatus is connected to an external power supply, according to to-be-driven power of the motor and to-be-charged power of an external battery (105), the controller (104) controls the bridge arm converter (102) to cause electrical energy of the external power supply to flow to a drive-charging circuit, and adjusts a current of the drive-charging circuit, to cause the external power supply to drive the motor to output drive power and charge the external battery (105) at the same time.
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公开(公告)号：US20220329195A1
公开(公告)日：2022-10-13
申请号：US17763962
申请日：2020-08-18
Applicant: BYD COMPANY LIMITED
Inventor： Heping LING , Jicheng LI , Changjiu LIU , Feiyue XIE , Yuxin ZHANG
Abstract: An energy conversion device is provided. The energy conversion device includes a reversible pulse-width modulation (PWM) rectifier (102) and a motor coil (103). The motor coil (103) includes L sets of winding units, and each set of winding unit is connected with the reversible PWM rectifier (102), where L≥2 and is a positive integer. At least two sets of heating circuits of a to-be-heated device are formed by an external power supply (100), the reversible PWM rectifier (102), and the winding units in the motor coil (103). The energy conversion device controls the reversible PWM rectifier (102) according to a control signal, so that a current outputted from the external power supply (100) flows through at least two sets of winding units in the motor coil (103) to generate heat, and cause a vector sum of resultant current vectors of the at least two sets of the winding units on a quadrature axis of a synchronous rotating reference frame based on rotor field orientation of the motor to be zero.
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公开(公告)号：US20220289053A1
公开(公告)日：2022-09-15
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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