公开(公告)号：US20240375547A1

公开(公告)日：2024-11-14

申请号：US18782925

申请日：2024-07-24

Applicant: BYD COMPANY LIMITED

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

IPC: B60L58/25 ,  B60H1/00 ,  B60H1/32 ,  B60L58/26 ,  B60L58/27 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H01M10/657 ,  H01M10/663 ,  H02M7/5387 ,  H02P27/00

Abstract: An integrated heat management 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 directly or through a gas-liquid separator; and a control subsystem, configured to control the control valve to be in communication with the exhaust port and the air return port of the compressor.

公开(公告)号：US20240017589A1

公开(公告)日：2024-01-18

申请号：US18373721

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

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

IPC: B60H1/00 ,  B60L58/26 ,  B60L53/60 ,  B60L58/12

CPC classification number: B60H1/00735 ,  B60H1/00385 ,  B60H1/00278 ,  B60L58/26 ,  B60L53/60 ,  B60L58/12 ,  H02P27/06

Abstract: An integrated thermal management system, includes: a heat pump subsystem that includes a heat pump subsystem detector configured to detect heat pump state information of the heat pump subsystem; a cooling subsystem of a high-voltage system is configured to exchange heat between the heat pump subsystem and a high-voltage system of a vehicle; a battery detector is configured to detect battery state information of a vehicle battery; an user interface is configured to receive setting information of a thermal demand of a passenger compartment of a vehicle; and a controller is configured to determine a thermal management demand of the vehicle battery according to the battery state information, determine a thermal management demand of the passenger compartment according to the setting information, and determine a heat supplementation demand according to the thermal management demand of the vehicle battery, the thermal management demand of the passenger compartment, and the heat pump state information.

公开(公告)号：US20250042220A1

公开(公告)日：2025-02-06

申请号：US18924086

申请日：2024-10-23

Applicant: BYD COMPANY LIMITED

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

IPC: B60H1/00

Abstract: A vehicle air conditioning system includes a first passenger compartment heating loop and a first battery pack heat exchange loop. The first passenger compartment heating loop and the first battery pack heat exchange loop share a compressor and an out-vehicle condenser. The first passenger compartment heating loop further includes an in-vehicle condenser, the first battery pack heat exchange loop further includes a heat conducting component connected to a power battery. The power battery is connected to a self-heating circuit used for self-heating the power battery; and an outlet of the compressor is in communication with an inlet of the in-vehicle condenser. An outlet of the in-vehicle condenser is in communication with an inlet of the out-vehicle condenser, and an outlet of the out-vehicle condenser is in communication with an inlet of the compressor.

公开(公告)号：US20220097567A1

公开(公告)日：2022-03-31

申请号：US17298348

申请日：2019-11-27

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Gang WANG ,  Shuzhou CAI ,  Gan SONG

IPC: B60L58/27 ,  B60H1/00 ,  B60H1/22 ,  B60H1/32 ,  H01M10/615 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6568 ,  H01M10/66

Abstract: The present disclosure relates to a vehicle thermal management system, a control method thereof, and a vehicle using same. The vehicle thermal management system includes a battery and electric drive thermal management system. The battery and electric drive thermal management system includes a first coolant flow path, a second coolant flow path, and a four-way valve. A heat exchanger, a power battery, and a first pump are disposed on the first coolant flow path. The first coolant flow path has one end connected to a first port of the four-way valve and another end connected to a second port of the four-way valve. A motor, a radiator, and a second pump are disposed on the second coolant flow path. The second coolant flow path has one end connected to a third port of the four-way valve and another end connected to a fourth port of the four-way valve.

公开(公告)号：US20250046906A1

公开(公告)日：2025-02-06

申请号：US18922555

申请日：2024-10-22

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Lei YAN ,  Gan SONG ,  Wen GAO

IPC: H01M10/637 ,  B60L53/24 ,  B60L58/27 ,  H01M10/615 ,  H01M10/625 ,  H02J7/14

Abstract: A battery self-heating device, comprising: a bridge arm converter, an energy storage element, an inductor and a controller. The controller is configured to control, in a preset state, the connection and disconnection of the bridge arm converter, such that a first power battery and a second power battery are respectively charged/discharged by means of the inductor, and each form a freewheeling circuit by means of the energy storage element, so as to realize the continuous heating of the first power battery and the second power battery.

公开(公告)号：US20230294557A1

公开(公告)日：2023-09-21

申请号：US18018252

申请日：2021-07-26

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Yong XIONG ,  Gan SONG ,  Yili LUO

IPC: B60L58/26 ,  B60L58/27

CPC classification number: B60L58/26 ,  B60L58/27

Abstract: A vehicle battery thermal management system includes a heat conducting element connected to a vehicle air conditioning system and a self-heating circuit connected to a vehicle power battery. The heat conducting element, a compressor of the vehicle air conditioning system, and an outdoor condenser of the vehicle air conditioning system form a battery refrigeration loop, and the battery refrigeration loop absorbs heat from the vehicle power battery through a refrigerant in the heat conducting element to cool down the vehicle power battery. The self-heating circuit and the vehicle power battery form a battery self-heating loop, and the self-heating circuit is configured to control the vehicle power battery to perform high-frequency alternating charging and discharging for self-heating in the battery self-heating loop.