公开(公告)号：US20190225074A1

公开(公告)日：2019-07-25

申请号：US16314027

申请日：2017-05-11

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Jianjian LIU ,  Heping LING ,  Zhen ZHAI ,  Youbin XU

IPC: B60K6/547 ,  F16H3/091 ,  F16H3/00 ,  B60K6/36

Abstract: The present disclosure discloses a power drive system and a vehicle. The power drive system includes: an engine; multiple input shafts, the engine being arranged to selectively engage with at least one of the multiple input shafts, and a gear driving gear being arranged on each input shaft; multiple output shafts, a gear driven gear being arranged on each output shaft and; a reverse gear shaft, a first reverse gear shaft gear and a second reverse gear shaft gear being idly mounted on the reverse gear shaft, the first reverse gear shaft gear being meshed with one gear driving gear, and each of the first reverse gear shaft gear and the second reverse gear shaft gear being arranged to engage with the reverse gear shaft; a reverse gear output gear, the reverse gear output gear being fixedly arranged on the output shaft, and the reverse gear output gear being meshed with the second reverse gear shaft gear; and a first motor generator, the first motor generator being arranged to be linked with the reverse gear shaft.

公开(公告)号：US20180237001A1

公开(公告)日：2018-08-23

申请号：US15753105

申请日：2016-08-18

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Ning WANG ,  Yanfei XIONG ,  Ting WEN

IPC: B60W30/02 ,  B60K7/00 ,  B60W10/08 ,  B60W10/184

CPC classification number: B60W30/02 ,  B60K7/0007 ,  B60K17/043 ,  B60K17/356 ,  B60K2007/0092 ,  B60L3/0076 ,  B60L3/0092 ,  B60L3/108 ,  B60L7/10 ,  B60L7/18 ,  B60L11/18 ,  B60L2220/42 ,  B60L2220/46 ,  B60L2240/16 ,  B60L2240/18 ,  B60L2240/22 ,  B60L2240/24 ,  B60L2260/28 ,  B60W10/08 ,  B60W10/184 ,  B60W2510/20 ,  B60W2520/105 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2520/26 ,  B60W2520/28 ,  B60W2530/20 ,  B60W2540/18 ,  B60W2710/083 ,  B60W2720/14 ,  B60Y2200/91

Abstract: A vehicle stability control system includes a signal collection sensor and a vehicle controller (10). The signal collection sensor is configured to collect a vehicle condition information parameter, and the vehicle controller (10) is configured to calculate a control yaw moment according to the vehicle condition information parameter. The control yaw moment is used to cancel a difference between an estimated yaw moment and an actual yaw moment. The vehicle controller (10) is further configured to determine according to the vehicle condition information parameter whether the vehicle (100) is in a stable region or a non-stable region in the case of tire blow-out, and allocate the control yaw moment to four wheels (101) according to a vehicle stability condition, thus implementing vehicle stability control. A vehicle stability control method and a vehicle (100) with the vehicle stability control system are also disclosed.

公开(公告)号：US20180236989A1

公开(公告)日：2018-08-23

申请号：US15751763

申请日：2016-08-10

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Fanliang MENG ,  Yanfei XIONG ,  Mingchuan SHI

IPC: B60T8/1755 ,  B60T8/171 ,  B60T8/172 ,  B60T8/30 ,  B60T8/32 ,  B60T13/74 ,  B60L7/18

CPC classification number: B60T8/17551 ,  B60L7/18 ,  B60L2240/16 ,  B60L2240/18 ,  B60L2240/22 ,  B60L2240/24 ,  B60T8/171 ,  B60T8/172 ,  B60T8/17552 ,  B60T8/17554 ,  B60T8/1769 ,  B60T8/30 ,  B60T8/3205 ,  B60T13/741 ,  B60T2230/02 ,  B60T2230/03 ,  B60T2240/06 ,  B60T2270/302 ,  B60T2270/613 ,  B60W30/04

Abstract: The embodiments of the present application disclose a stability control system and a stability control method for a four-wheel drive electric vehicle and the four-wheel drive electric vehicle. In the stability control system, when the lateral acceleration is equal to or greater than an acceleration threshold, at least one of a first braking force signal, a second braking force signal, a first logic signal and a second logic signal is obtained. When the first logic signal is obtained, the body of the electric vehicle is controlled to keep stable. When the first braking force signal and the second logic signal are obtained, a motor is controlled to apply braking force to an outside front wheel. When the second braking force signal and the second logic signal are obtained, motors are controlled to apply braking force to the outside front wheel and an inside rear wheel.

公开(公告)号：US20250074210A1

公开(公告)日：2025-03-06

申请号：US18954368

申请日：2024-11-20

Applicant: BYD COMPANY LIMITED

Inventor： Heping LING ,  Mingchuan SHI ,  Chao YIN ,  Luo FU ,  Yuexu YUAN

IPC: B60L15/20

Abstract: A vehicle torque control method includes: step 101, acquiring vehicle traveling parameters; step 102, determining a torque adjustment value of a driving shaft of a vehicle according to the vehicle traveling parameters; and step 103, adjusting the torque of the driving shaft of the vehicle according to the torque adjustment value, wherein the vehicle traveling parameters comprise wheel rotating speeds at two ends of the driving shaft of the vehicle. Further disclosed are a vehicle torque control apparatus, a vehicle and a storage medium. A torque adjustment value of each driving shaft of a vehicle is determined by means of wheel rotating speeds at two ends of the driving shaft of the vehicle, and torque adjustment is performed on all driving shafts of the vehicle, such that the torque adjustment is more comprehensive; and the torques of the driving shafts are adjusted in a linkage manner.

公开(公告)号：US20250058647A1

公开(公告)日：2025-02-20

申请号：US18936565

申请日：2024-11-04

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Mingchuan SHI ,  Hao ZHANG ,  Pengxiang LI

IPC: B60L15/20

Abstract: A vehicle torque control method includes: obtaining a steering wheel angle and a vehicle steering speed parameter; determining a current driving state of a vehicle based on the steering wheel angle and the vehicle steering speed parameter, and controlling output torques of a front driver and a rear driver of the vehicle based on the current driving state of the vehicle.

公开(公告)号：US20240367553A1

公开(公告)日：2024-11-07

申请号：US18777800

申请日：2024-07-19

Applicant: BYD COMPANY LIMITED

Inventor： Heping LING ,  Lei YAN ,  Zhen ZHAI ,  Wen GAO ,  Ke ZHU

IPC: B60L58/27 ,  B60L50/60 ,  B60L53/24 ,  H01M10/615 ,  H01M10/625 ,  H01M10/637

Abstract: A battery self-heating apparatus and method, and a vehicle include a first energy processing apparatus, a second energy processing apparatus, and a controller connected to each other. The controller is configured to control connect/disconnect of a first inverter and a second inverter in a first preset state, to enable a first power battery and a second power battery to be charged/discharged through the first energy processing apparatus and the second energy processing apparatus, to implement heating of the first power battery and the second power battery.

公开(公告)号：US20240237312A1

公开(公告)日：2024-07-11

申请号：US18611985

申请日：2024-03-21

Applicant: BYD COMPANY LIMITED

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

IPC: H05K7/20

CPC classification number: H05K7/20927

Abstract: A cooling apparatus of a motor controller includes a water pipeline cover plate mounted on a motor controller body which includes a water pipeline inlet, an inlet of an inner water pipeline, an outlet of the inner water pipeline, and a water pipeline outlet. The water pipeline cover plate includes a water pipeline cover plate inlet, a power-module water inlet, a mounting groove, a power-module water outlet, and a water pipeline cover plate outlet. A heat-dissipation surface of the power module and a surface of the mounting groove surround a cooling accommodating cavity. The water pipeline inlet, the inlet of the inner water pipeline, the water pipeline cover plate inlet, and the water pipeline cover plate inlet communicate with the power-module water inlet, the cooling accommodating cavity, the power-module water outlet, and the water pipeline cover plate outlet.

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：US20230373264A1

公开(公告)日：2023-11-23

申请号：US18027499

申请日：2021-09-18

Applicant: BYD COMPANY LIMITED

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

IPC: B60H1/00 ,  H01M10/625 ,  H01M10/63 ,  H01M10/6569 ,  H01M10/66 ,  B60H1/03

CPC classification number: B60H1/00278 ,  H01M10/625 ,  H01M10/63 ,  H01M10/6569 ,  H01M10/66 ,  B60H1/03 ,  H01M2220/20

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：US20230236261A1

公开(公告)日：2023-07-27

申请号：US18128703

申请日：2023-03-30

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Siliang CHEN ,  Zhengzheng WANG ,  Junzi LI

IPC: G01R31/392 ,  G01R31/367 ,  G01R31/387

CPC classification number: G01R31/392 ,  G01R31/367 ,  G01R31/387

Abstract: A method for acquiring a battery capacity, includes: acquiring multiple initial charging parameters of a battery when the battery is charged during a current charging process, where state of charge (SOC) of the battery in the current charging process changes for a range covering an SOC range, or a minimum charging temperature of the battery in the current charging process is greater than or equal to a temperature threshold; periodically acquiring multiple actual charging parameters of the battery during the current charging process and a current number of charging times corresponding to the current charging process; and acquiring, according to the multiple initial charging parameters, the multiple actual charging parameters, and the current number of charging times, a predicted battery capacity of the battery in a next charging process.