公开(公告)号：US20240343146A1

公开(公告)日：2024-10-17

申请号：US18749908

申请日：2024-06-21

Applicant: BYD COMPANY LIMITED

Inventor： Bingjian HUANG ,  Hao LV ,  Axi QI ,  Zhifei YANG

IPC: B60L53/53 ,  B60L15/32 ,  B60L53/18 ,  B60L53/20 ,  H02J7/00 ,  H02M7/5387 ,  H02P27/06

CPC classification number: B60L53/53 ,  B60L15/32 ,  B60L53/18 ,  B60L53/20 ,  H02J7/007 ,  H02M7/5387 ,  H02P27/06 ,  H02J2207/20 ,  H02P2201/11

Abstract: The present disclosure relates to the technical field of vehicles, and provides a discharging vehicle and a vehicle charging system. The discharging vehicle includes a discharging control device, a first power battery, a motor, and a motor control circuit. A first electrode and a second electrode of the first power battery are respectively connected to a first input terminal and a second input terminal of the motor control circuit. The discharging control device realizes, by using the motor control circuit, DC step-down charging of the second power battery by the first power battery.

公开(公告)号：US20210261074A1

公开(公告)日：2021-08-26

申请号：US17261635

申请日：2019-07-26

Applicant: BYD COMPANY LIMITED

Inventor： Lulin ZENG ,  Axi QI ,  Cunlong LIU ,  Qiwei ZHAN ,  Youxin ZHANG

IPC: B60R16/023 ,  B60L15/00 ,  B60L53/16 ,  B60L50/60 ,  B60K1/02 ,  B60L1/00 ,  G01R31/52 ,  H05K7/20 ,  H05K5/00

Abstract: An integrated controller (A) for a vehicle, and a vehicle (B), where the integrated controller (A) includes a box body (10), a high-voltage power distribution module (900) disposed in the box body (10), and a left driving motor controller (300), a right driving motor controller (400), an air compressor motor controller (500), a steering motor controller (600), and a DC-DC voltage converter (700) that are all connected to the high-voltage power distribution module (900); and the box body (10) is provided with a plurality of input/output interfaces corresponding to the high-voltage power distribution module (900), the left driving motor controller (300), the right driving motor controller (400), the air compressor motor controller (500), the steering motor controller (600), and the DC-DC voltage converter (700).

公开(公告)号：US20240092286A1

公开(公告)日：2024-03-21

申请号：US18526299

申请日：2023-12-01

Applicant: BYD COMPANY LIMITED

Inventor： Caifang GUO ,  Axi QI ,  Jian LIU ,  Jian GAO ,  Lele LI

IPC: B60R16/023 ,  B60R16/033

CPC classification number: B60R16/0231 ,  B60R16/0239 ,  B60R16/033

Abstract: A low-voltage power supply system includes: a storage battery; an electric control circuit board, the electric control circuit board being connected with the storage battery, a battery management controller (BMC) and a motor controller being integrated on the electric control circuit board, and the motor controller being configured to control a power module; a control circuit being connected with the BMC and being configured to receive a control command of the BMC; a metal-oxide-semiconductor field-effect transistor (MOSFET) connected with the control circuit; and a battery management system. A contactor is arranged in the battery management system. The MOSFET is connected with the contactor and mounted to the electric control circuit board or the battery management system. The BMC is configured to control on/off of the MOSFET through the control circuit, to implement connection/disconnection between the storage battery and the contactor.

公开(公告)号：US20240021714A1

公开(公告)日：2024-01-18

申请号：US18372387

申请日：2023-09-25

Applicant: BYD COMPANY LIMITED

Inventor： Guangming YANG ,  Axi QI ,  Xingchun ZHANG ,  Yilong YU ,  Fengchuan YU

IPC: H01L29/739 ,  H01L23/367 ,  H01L23/00 ,  H05K7/20 ,  H01L23/495

CPC classification number: H01L29/7393 ,  H01L23/3677 ,  H01L23/564 ,  H05K7/20927 ,  H01L23/49565

Abstract: An insulated gate bipolar transistor (IGBT) assembly includes a wafer; a first heat dissipation plate and a second heat dissipation plate being disposed on two surfaces of the wafer in a thickness direction of the wafer respectively, a plurality of first heat dissipation pins being disposed at an interval from each other on a surface of the first heat dissipation plate facing away from the second heat dissipation plate, and a plurality of second heat dissipation pins being disposed at an interval from each other on a surface of the second heat dissipation plate facing away from the first heat dissipation plate; and an insulating waterproof housing covering a portion of the wafer exposed from the first heat dissipation plate and the second heat dissipation plate.

公开(公告)号：US20250080031A1

公开(公告)日：2025-03-06

申请号：US18950512

申请日：2024-11-18

Applicant: BYD COMPANY LIMITED

Inventor： Yilong YU ,  Luhui XU ,  Zhiyong DU ,  Axi QI ,  Guangming YANG

IPC: H02P29/028 ,  B60L3/00

Abstract: The present disclosure provides an electric motor control system and a vehicle. The electric motor control system includes a motor drive module, a multi-core processing module, and a safety logic module. The multi-core processing module includes a main function core and a lockstep monitoring core. The main function core is configured to obtain sampling data, and when any one of the sampling data, a running status of the main function core, a motor control signal, and a running status of a motor is abnormal, the lockstep monitoring core outputs a safety trigger signal; and the safety logic module is configured to output an instruction for prohibiting execution of the motor control signal to the motor drive module when receiving the safety trigger signal.

公开(公告)号：US20240023295A1

公开(公告)日：2024-01-18

申请号：US18373531

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Fengchuan YU ,  Xingchun ZHANG ,  Yanjun FAN ,  Guangming YANG ,  Axi QI

IPC: H05K7/20 ,  H05K7/14 ,  H05K5/03

CPC classification number: H05K7/20927 ,  H05K7/20872 ,  H05K7/1427 ,  H05K5/03 ,  B60R16/0239

Abstract: A motor controller includes: a box including a first housing including a cooling chamber, and an insert-in hole and a protrude-out hole disposed on two opposite sidewalls of the cooling chamber; an IGBT module inserted into the cooling chamber, two opposite side surfaces of the IGBT module in a thickness direction and an inner wall of the cooling chamber forming liquid passing gaps, two ends of the IGBT module sealed with the first housing to seal the insert-in hole and the protrude-out hole; a control board and a drive board disposed in the box, the control board located on a surface of the drive board facing away from the IGBT module, and the drive board connected to the control board and the IGBT module; and a capacitor module located on a surface of the first housing facing away from the drive board and connected to the IGBT module.

公开(公告)号：US20220410718A1

公开(公告)日：2022-12-29

申请号：US17896853

申请日：2022-08-26

Applicant: BYD COMPANY LIMITED

Inventor： Luhui XU ,  Yilong YU ,  Zhiyong DU ,  Axi QI ,  Guangming YANG

IPC: B60L3/00 ,  B60L15/20 ,  H02H7/08 ,  H02P6/08

Abstract: A motor control system and a vehicle. The motor control system includes: a vehicle control unit, configured to obtain vehicle state data and output an instruction for cutting off motor output torque when determining an unexpected power transmission failure according to the vehicle state data; and a motor controller unit, connected to the vehicle control unit, and configured to stop outputting motor control torque in response to the instruction for cutting off motor output torque.

公开(公告)号：US20240092201A1

公开(公告)日：2024-03-21

申请号：US18524205

申请日：2023-11-30

Applicant: BYD COMPANY LIMITED

Inventor： Caifang GUO ,  Axi QI ,  Jian LIU ,  Jian GAO ,  Lele LI

IPC: B60L53/22

CPC classification number: B60L53/22 ,  B60L2210/10

Abstract: An integrated controller includes: a box; a controller and a charging/discharging converter disposed in the box; and a high-voltage interface assembly including a high-voltage interface disposed on the box and a high-voltage connector disposed in the box. The high-voltage connector is connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal.

公开(公告)号：US20230086012A1

公开(公告)日：2023-03-23

申请号：US17909273

申请日：2020-08-24

Applicant: BYD COMPANY LIMITED

Inventor： Yilong YU ,  Luhui XU ,  Zhiyong DU ,  Axi QI ,  Guangming YANG

IPC: G01R31/34 ,  G01D5/20

Abstract: A device and a system for diagnosing a motor parameter are provided. The device includes a master chip, an excitation conditioning circuit, a motor resolver unit, and a sine and cosine conditioning circuit. The master chip includes a first analog-to-digital converter, a second analog-to-digital converter, a first processing unit, and a monitoring core.

公开(公告)号：US20230006437A1

公开(公告)日：2023-01-05

申请号：US17943878

申请日：2022-09-13

Applicant: BYD COMPANY LIMITED

Inventor： Luhui XU ,  Yilong YU ,  Zhiyong DU ,  Axi QI ,  Guangming YANG

IPC: H02H7/08 ,  B60L3/00 ,  H02P6/24 ,  H02P6/08

Abstract: A motor control system includes a main control unit, a power supply unit, and a driving unit. The main control unit obtains sampling data of a motor and a power supply signal from the driving unit, generates a motor control signal according to the sampling data, and outputs a safety enable signal when determining that motor drive is abnormal according to the sampling data or when determining that power supply to the driving unit is abnormal according to the power supply signal. The power supply unit supplies power to the main control unit, monitors a state of the main control unit, and outputs a safety cut-off signal when the power supply unit or the main control unit is abnormal. The driving unit drives the motor according to the motor control signal, and switches to a safe path when receiving any one of the safety enable or safety cut-off signal.