公开(公告)号：EP4550526A1

公开(公告)日：2025-05-07

申请号：EP23845661.0

申请日：2023-07-27

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  HUANG, Wei ,  MA, Rui ,  QUE, Yansheng

IPC: H01M10/613 ,  H01M10/615

Abstract: A heat exchange plate, a battery pack and a vehicle. The heat exchange plate comprises a first interface, a second interface, and a flow channel in communication with the first interface and the second interface. The heat exchange plate is configured to exchange heat for a battery, and the flow channel is configured to circle a working medium. When the heat exchange plate is used to cool the battery, the working medium flows into the flow channel from the first interface, and flows out from the second interface. When the heat exchange plate is used to heat the battery, the working medium flows into the flow channel from the second interface, and flows out from the first interface.

公开(公告)号：EP4516543A1

公开(公告)日：2025-03-05

申请号：EP23795607.3

申请日：2023-04-28

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  HUANG, Wei ,  ZHAI, Zhen ,  SONG, Gan

IPC: B60H1/14 ,  B60H1/00 ,  B60H1/32 ,  H01M10/615 ,  H01M10/625 ,  H01M10/663 ,  B60K11/02 ,  B60L58/26 ,  B60L58/27

Abstract: A vehicle air conditioning system, a heat management system (1) and a control method therefor, and a vehicle (5). The heat management system (1) comprises: one or more heat exchange loops (2), each heat exchange loop (2) comprising a heat pump device (21), a heat absorption heat exchanger (22) and a heat supply heat exchanger (23) which are sequentially connected in series, when there are a plurality of heat exchange loops (2), the plurality of heat exchange loops (2) sharing the heat pump device (21), the heat absorption heat exchanger (22) comprising at least one of an in-vehicle heat exchanger (221) and a battery pack heat exchanger (222), and the heat exchange loops (2) being used for implementing in-vehicle warming or battery pack heating; and a valve assembly (3), used for implementing on/off of each heat exchange loop (2), wherein when the heat absorption heat exchanger (22) is the in-vehicle heat exchanger (221), the heat supply heat exchanger (23) comprises at least one of the battery pack heat exchanger (222), an out-vehicle heat exchanger (223), and a motor electric control assembly heat exchanger (224); when the heat absorption heat exchanger (22) is the battery pack heat exchanger (222), the heat supply heat exchanger (23) comprises at least one of the out-vehicle heat exchanger (223) and the motor electric control assembly heat exchanger (224).

公开(公告)号：EP4501671A1

公开(公告)日：2025-02-05

申请号：EP23777647.1

申请日：2023-02-13

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  SONG, Gan ,  YAN, Lei ,  XIONG, Yong

IPC: B60H1/00 ,  B60L58/27 ,  B60K11/02

Abstract: An integrated heat management system and a vehicle are provided. The system includes: a heat pump subsystem, configured to exchange heat with a passenger compartment and a battery of a vehicle; a high-pressure cooling subsystem, configured to exchange heat with a high-pressure system of the vehicle and the heat pump subsystem; a battery self-heating subsystem, configured to heat the battery through charging and discharging; an air heating subsystem, configured to exchange heat with the passenger compartment; the heat pump subsystem including a compressor and a control valve, one end of the control valve being in communication with an exhaust port of the compressor, and an other end of the control valve being in communication with an air return port of the compressor or being in communication with an air return port of the compressor through a gas-liquid separator; and a control subsystem, configured to control the control valve to be in communication with the exhaust port of the compressor and the air return port of the compressor, to implement air supplement and enthalpy increase.

公开(公告)号：EP4395486A1

公开(公告)日：2024-07-03

申请号：EP22913939.9

申请日：2022-11-25

Applicant: BYD Company Limited

Inventor： LING, Heping ,  LIU, Haijun ,  ZHANG, Haixing ,  TAN, Xin ,  HUANG, Dandan

IPC: H05K7/20

CPC classification number: H05K7/20

Abstract: A cooling apparatus of a motor controller, a motor controller, and a vehicle are provided. The cooling apparatus includes a motor controller box body and a water pipeline cover plate mounted on the motor controller box body. The motor controller box body includes a water pipeline inlet, a water pipeline inlet inside the box body, an outlet inside the box body, and a water pipeline outlet. The water pipeline cover plate includes a water pipeline cover plate inlet, a power module inlet, a mounting groove, a power module outlet, and a water pipeline cover plate outlet. When a power module of the motor controller is mounted in the mounting groove, a heat-dissipation surface of the power module is mounted in tight contact with the mounting groove of the water pipeline cover plate to form a cooling accommodating cavity. The water pipeline inlet sequentially communicates with the water pipeline inlet inside the box body and the water pipeline cover plate inlet, and the water pipeline cover plate inlet communicates with the power module inlet, the cooling accommodating cavity, the power module outlet, the water pipeline cover plate outlet, the outlet inside the box body, and the water pipeline outlet. A pipeline of the motor controller is simple and highly adaptable, thereby resolving problems of uneven heat dissipation and a complex internal pipeline of the motor controller.

公开(公告)号：EP4344051A2

公开(公告)日：2024-03-27

申请号：EP24156699.1

申请日：2019-12-17

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  PAN, Hua ,  XIE, Feiyue ,  ZHANG, Lijun

IPC: H02P27/08

Abstract: The present disclosure discloses a motor drive apparatus, a method for controlling the same, a vehicle, and a readable storage medium, where the motor drive apparatus comprises: a three-phase inverter (101) and a three-phase motor (102), a first terminal of the three-phase inverter (101) is connected to a positive electrode of a power battery (104), a second terminal of the three-phase inverter (101) is connected to a negative electrode of the power battery (104), and the three phase coils of the three-phase motor (102) are respectively connected to midpoints of three phase legs of the three-phase inverter (101), wherein the motor drive apparatus is configured to simultaneously control a process of charging the power battery (104) by the power supply module (103) and the torque of the three-phase motor (102) at a zero output, and cause the three-phase inverter (101) and the three-phase motor (102) to heat a heat exchange medium flowing through at least one of the three-phase inverter (101) or the three-phase motor (102).

公开(公告)号：EP4342724A1

公开(公告)日：2024-03-27

申请号：EP22875152.5

申请日：2022-09-30

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  LIU, Junhua ,  AN, Fengjun ,  WEN, Qi

IPC: B60L53/62

Abstract: A vehicle and a charging method therefor and a storage medium are provided. The method for charging a vehicle includes the following steps. A first voltage of a charging port of a vehicle is obtained. A target buck value is determined based on the first voltage. A voltage on a buck side of a buck-boost module of the vehicle is adjusted based on the target buck value. The target buck value is sent to a charging pile to enable the charging pile to determine an output voltage based on the target buck value. A charging demand current of the vehicle is increased to a maximum allowable charging current of the vehicle after the vehicle enters a charging process.

公开(公告)号：EP4299342A1

公开(公告)日：2024-01-03

申请号：EP21941635.1

申请日：2021-10-19

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  ZHONG, Yilin ,  SONG, Gan ,  ZHANG, Jingke

IPC: B60H1/00

Abstract: Disclosed are an integrated thermal management system, a vehicle, and a thermal management control method, which relate to the field of vehicle technology. The integrated thermal management system includes a heat pump subsystem, a battery detection module, an interaction module, a high-voltage system cooling subsystem, and a vehicle thermal management controller. The heat pump subsystem includes a heat pump subsystem detection module. The heat pump subsystem detection module is configured to detect state information of the heat pump subsystem. The high-voltage system cooling subsystem is configured to perform heat exchange with the heat pump subsystem and a high-voltage system of a vehicle. The battery detection module is configured to detect state information of a vehicle battery. The interaction module is configured to receive setting information of a thermal requirement of a passenger compartment. The vehicle thermal management controller is configured to determine a thermal management requirement of the vehicle battery according to the state information of the vehicle battery, determine a thermal management requirement of the passenger compartment according to the setting information, and determine a heat supplementation requirement according to the thermal management requirement of the vehicle battery, the thermal management requirement of the passenger compartment, and the state information of the heat pump subsystem.

公开(公告)号：EP4239861A1

公开(公告)日：2023-09-06

申请号：EP21885266.3

申请日：2021-10-28

Applicant: BYD Company Limited

Inventor： LING, Heping ,  ZHAI, Zhen ,  LIU, Linna ,  LIANG, Yun ,  XIONG, Yuchao

IPC: H02K1/32 ,  H02K5/20 ,  H02K9/19 ,  H02K1/20 ,  H02K11/30 ,  B60K1/00

Abstract: A cooling structure for an integrated electric drive system and an integrated electric drive system are provided. The cooling structure includes a motor assembly (1). The motor assembly (1) includes a rotary shaft (15) and a cooling tube (16) having an inner hole (161). A mounting hole (151) for the cooling tube to be inserted is arranged on the rotary shaft (15). An annular water channel (17) is formed between an outer wall of the cooling tube (16) and an inner wall of the mounting hole (151). The inner hole (161) and the annular water channel (17) are constructed into a rotor cooling water channel (12).

公开(公告)号：EP4215386A1

公开(公告)日：2023-07-26

申请号：EP21868758.0

申请日：2021-09-18

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  ZHONG, Yilin ,  LING, Heping ,  WU, Chunfen ,  LIN, Fangfang

IPC: B60H1/00 ,  B60H1/03 ,  B60L58/26 ,  B60L58/27

Abstract: The present disclosure relates to a vehicle thermal management system and an electric vehicle. The vehicle thermal management system includes a first thermal management system and a second thermal management system for a high-voltage system. The second thermal management system includes a heat sink, a heat exchanger, and a waste heat utilization branch. A water pump and a high-voltage system cooling branch passing through the high-voltage system that are in interconnected are arranged on the waste heat utilization branch. A cooling liquid outlet of the heat exchanger communicates with an inlet of the waste heat utilization branch. An outlet of the waste heat utilization branch optionally communicates with a cooling liquid inlet of the heat exchanger or with the cooling liquid inlet of the heat exchanger through the heat sink. The first thermal management system includes a compressor and a battery pack provided with a direct-cooling device. An outlet of the compressor communicates with a first port of the direct-cooling device of the battery pack. A second port of the direct-cooling device of the battery pack communicates with a refrigerant inlet of the heat exchanger through a first throttle branch, and a refrigerant outlet of the heat exchanger communicates with an inlet of the compressor. In this way, the arrangement of pipeline arrangement for cooling and heating the battery pack is simplified.

公开(公告)号：EP4015297A1

公开(公告)日：2022-06-22

申请号：EP20852950.3

申请日：2020-08-13

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  LI, Jicheng ,  PAN, Hua ,  XIE, Feiyue

IPC: B60L58/10 ,  H02M3/155 ,  H02M7/797 ,  H02J7/00

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.