公开(公告)号：US20240239219A1

公开(公告)日：2024-07-18

申请号：US18620963

申请日：2024-03-28

Applicant: BYD COMPANY LIMITED

Inventor： Penghui XUE ,  Junlong WANG ,  Leping ZHENG ,  Liang WANG ,  Mingwen CHEN

IPC: B60L53/22 ,  B60L53/53 ,  B60L53/62 ,  B60L53/66

CPC classification number: B60L53/22 ,  B60L53/53 ,  B60L53/62 ,  B60L53/66 ,  B60L2210/12 ,  B60L2210/14

Abstract: An energy conversion apparatus includes: a first inductor, a first end of the first inductor being connected to a first output end of a battery module; a second inductor, a first end of the second inductor being connected to the first end of the first inductor; a second switch, connected between the first end of the second inductor and a first end of a charging and discharging port; a first two-way H-bridge, one end of the first two-way H-bridge being connected to a second output end of the battery module and a second end of the charging and discharging port, the first two-way H-bridge including a first bridge arm and a second bridge arm that are connected in parallel; and a third switch, connected between the first end of the first inductor and the first end of the charging and discharging port.

公开(公告)号：US20250147122A1

公开(公告)日：2025-05-08

申请号：US19017061

申请日：2025-01-10

Applicant: BYD COMPANY LIMITED

Inventor： Mingwen CHEN ,  Penghui XUE ,  Xiangxiang LI ,  Lei SHI ,  Weicheng LI

IPC: G01R31/52 ,  G01R19/165 ,  G01R31/00

Abstract: A device for detecting electric leakage, includes: a detection assembly connected to a first phase discharge path, a second phase discharge path, and a sampling assembly which is connected to a signal processing circuit. The first and the second phase discharge paths are configured to connect to a power supply and transmit electricity from the power supply when the power supply discharges electricity. The detection assembly is configured to establish the detection loop when the power supply discharges electricity. The sampling assembly is configured to collect, from the detection loop, a first detected voltage of the first phase discharge path and a second detected voltage of the second phase discharge path. The signal processing circuit is configured to receive the first and the second detected voltages from the sampling assembly, and determine whether the power supply has electric leakage according to the first and the second detected voltages.

公开(公告)号：US20240083275A1

公开(公告)日：2024-03-14

申请号：US18516694

申请日：2023-11-21

Applicant: BYD COMPANY LIMITED

Inventor： Xiangxiang LI ,  Weicheng LI ,  Lei SHI ,  Mingwen CHEN

IPC: B60L53/24 ,  B60L53/22

CPC classification number: B60L53/24 ,  B60L53/22

Abstract: A vehicle has an energy conversion apparatus. The energy conversion apparatus includes a first switch module and a second switch module, and configures the second switch module between a power battery and a voltage transformation module. When the first switch module is closed, the power battery, the first switch module, an energy storage module, and an external power supply module form a first charging loop. When the second switch module is closed, the power battery, the second switch module, the voltage transformation module, the energy storage module, and the external power supply module form a second charging loop.

公开(公告)号：US20230339451A1

公开(公告)日：2023-10-26

申请号：US18216695

申请日：2023-06-30

Applicant: BYD COMPANY LIMITED

Inventor： Dongsheng YANG ,  Chunsheng WANG ,  Yunhui BAI ,  Mingwen CHEN ,  Guoxiang LU ,  Xuechao WANG ,  Jiquan WANG

IPC: B60W20/13 ,  B60W20/20 ,  B60W20/15 ,  B60W20/12 ,  B60W10/06 ,  B60W10/08

CPC classification number: B60W20/13 ,  B60W20/20 ,  B60W20/15 ,  B60W20/12 ,  B60W10/06 ,  B60W10/08 ,  B60W2510/244 ,  B60W2520/30

Abstract: A method for controlling a hybrid vehicle, includes: acquiring a traveling parameter of the hybrid vehicle; controlling the engine, the driving motor, and the electric generator according to the traveling parameter, to enable the engine to operate in an economic zone by controlling charging and discharging of the power battery; comparing equivalent fuel consumptions of a series mode, a parallel mode, and an EV mode of the hybrid vehicle, and determining a minimum equivalent fuel consumption among the equivalent fuel consumptions; and selecting one of the series mode, the parallel mode, or the EV mode having the minimum equivalent fuel consumption as a current operation mode of the hybrid vehicle. The hybrid vehicle includes the engine and a driving motor outputting power to a wheel end, an electric generator generating electricity, and the power battery supplying electricity to the driving motor and charged by the electric generator or the driving motor.

公开(公告)号：US20230238591A1

公开(公告)日：2023-07-27

申请号：US17928560

申请日：2020-11-19

Applicant: BYD COMPANY LIMITED

Inventor： Junlong WANG ,  Liming LAO ,  Liang WANG ,  Penghui XUE ,  Mingwen CHEN

IPC: H01M10/44 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H02J7/00

CPC classification number: H01M10/44 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H02J7/007 ,  H02J7/0024 ,  H01M2220/20

Abstract: A battery energy processing device includes: first and second inductors, first and second phase bridge arms, an energy storage element, and a controller. First ends of the first and second inductors are connected with a positive electrode of a battery. A midpoint of the first phase bridge arm is connected with a second end of the first inductor; A midpoint of the second phase bridge arm is connected with a second end of the second inductor. A first end of the energy storage element is connected with a first confluent end; a second end of the energy storage element is connected with a second confluent end. The controller is configured to control the first and second phase bridge arms to charge and discharge the battery through the first and second inductors to heat the battery. The first and second inductors are in different operating states.