公开(公告)号：EP4474210A1

公开(公告)日：2024-12-11

申请号：EP23777624.0

申请日：2023-02-01

Applicant: BYD Company Limited

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

IPC: B60L58/27

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. (FIG. 1)

公开(公告)号：EP4415255A2

公开(公告)日：2024-08-14

申请号：EP24185479.3

申请日：2019-12-20

Applicant: BYD Company Limited

Inventor： LING, Heping ,  PAN, Hua ,  ZHANG, Yuxin ,  TIAN, Guo ,  XIE, Zhao

IPC: H02P29/66

CPC classification number: H01M10/625 ,  H01M10/615 ,  B60L58/27 ,  Y02T90/40 ,  Y02T10/70 ,  Y02E60/10 ,  Y02T10/72 ,  H01M2220/2020130101 ,  H01M10/633 ,  H01M10/667 ,  H01M10/6568 ,  B60L15/025 ,  B60L15/20 ,  B60L2210/4220130101 ,  B60L2210/4420130101 ,  B60L2240/42120130101 ,  B60L2240/42320130101 ,  B60L2240/42520130101 ,  B60L2240/42920130101 ,  B60L2240/52520130101 ,  B60L2240/52920130101 ,  B60L2240/54520130101 ,  B60L2240/66220130101 ,  B60L2240/8020130101 ,  B60L2260/2220130101 ,  H02P25/20 ,  H02P29/62 ,  H02P29/024 ,  H02P29/66 ,  Y02T10/64 ,  Y02T90/16 ,  H01M10/486 ,  H01M10/48

Abstract: This application provides a vehicle and a power battery heating apparatus and method thereof. In the power battery heating method, when a current temperature value of a power battery (20) is lower than a preset temperature value, and a heating condition of the power battery (20) meets a preset condition, a three-phase inverter (11) is controlled to cause a three-phase alternating current motor (12) to generate heat according to heating energy, to heat a coolant flowing through the power battery (20), a preset quadrature-axis current that causes a torque value outputted by the motor to be an appropriate value is obtained, and a corresponding preset direct-axis current is obtained according to heating power of the power battery (20), so as to control, according to the preset direct-axis current and the preset quadrature-axis current, the three-phase inverter (11) to adjust a phase current of the three-phase alternating current motor (12) in the heating process, where a direction of the preset direct-axis current changes periodically in the heating process, thereby making quantities of times of switching-on and switching-off of an upper leg and a lower leg of power switching devices of the same phase equal, and service life of devices balanced.

公开(公告)号：EP4393767A1

公开(公告)日：2024-07-03

申请号：EP22914632.9

申请日：2022-12-26

Applicant: BYD Company Limited

Inventor： LING, Heping ,  ZHAI, Zhen ,  LIU, Junhua ,  LIANG, Wei ,  SUN, Yulin

IPC: B60L58/10 ,  B60L58/25 ,  B60L53/62

CPC classification number: B60L3/12 ,  B60L58/10 ,  B60L3/00 ,  B60L53/14 ,  B60L58/25 ,  B60L53/62 ,  Y02T10/70

Abstract: A method of over-temperature protection and apparatus for a charging apparatus, an electric vehicle, and a computer-readable storage medium are disclosed. The method of over-temperature protection includes: a charging parameter of a charging apparatus during a charging process is obtained, where the charging parameter includes a time and a temperature, and the time corresponds to the temperature; a temperature change trend of the charging apparatus is estimated based on the charging parameter; and when it is determined based on the temperature change trend that the highest estimated temperature is about to exceed a preset temperature threshold, the charging current is limited before the highest estimated temperature exceeds the preset temperature threshold. A temperature change trend of a charging apparatus is estimated based on a charging parameter, and it can be estimated in advance whether the charging apparatus is subject to over-temperature during a charging process, and the charging current can be adjusted faster and more effectively, and safety and reliability are improved.

公开(公告)号：EP4344051A3

公开(公告)日：2024-06-12

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: H02J7/02 ,  H02J7/00 ,  B60L53/00 ,  B60L53/24 ,  H02P27/08 ,  B60K1/00 ,  B60L15/20 ,  H02P29/62 ,  B60L15/08 ,  B60L58/27 ,  H02J7/14

CPC classification number: H02P27/08 ,  Y02T10/70 ,  Y02T10/7072 ,  Y02T90/14 ,  Y02T10/72 ,  H02P29/62 ,  H02J2207/2020200101 ,  B60L53/24 ,  B60L58/27 ,  B60L15/08 ,  B60L2220/5420130101 ,  H02J7/0068 ,  H02J7/1492 ,  H02J2310/4820200101 ,  Y02T10/64 ,  Y02T10/92

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：EP3337712B1

公开(公告)日：2020-04-08

申请号：EP16836652.4

申请日：2016-08-17

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  MENG, Fanliang ,  WEN, Ting ,  XIONG, Yanfei

IPC: B62D5/04 ,  B62D6/00 ,  B62D119/00

公开(公告)号：EP3354933B1

公开(公告)日：2020-03-04

申请号：EP16847984.8

申请日：2016-08-31

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  ZHAI, Zhen ,  ZHENG, Feng ,  XU, Youbin

IPC: F16H48/06 ,  F16H48/11

公开(公告)号：EP3476637A1

公开(公告)日：2019-05-01

申请号：EP17818962.7

申请日：2017-05-11

Applicant: BYD Company Limited

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

IPC: B60K6/36 ,  B60K6/38 ,  B60K6/547

Abstract: The present disclosure discloses a power drive system and a vehicle, the power drive system including: an engine; a plurality of input shafts, the engine being configured to be selectively engaged with at least one of the plurality of input shafts each provided with a gear driving gear; a plurality of output shafts each provided with a gear driven gear, a plurality of gear driven gears being meshed with a plurality of gear driving gears respectively; a reverse shaft provided with a first gear for the reverse shaft, the first gear for the reverse shaft being meshed with one of the gear driving gears; a reverse output gear linked with the reverse shaft; and a first electric generator together with the plurality of output shafts linked with a differential power input gear of the vehicle respectively.

公开(公告)号：EP3337704A1

公开(公告)日：2018-06-27

申请号：EP16836664.9

申请日：2016-08-18

Applicant: BYD Company Limited

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

IPC: B60W30/02 ,  B60W10/08

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：EP3334619A1

公开(公告)日：2018-06-20

申请号：EP16834665.8

申请日：2016-08-10

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  MENG, Fanliang ,  XIONG, Yanfei ,  CHEN, Weiqiang

IPC: B60L7/18

CPC classification number: B60L3/0076 ,  B60L7/18 ,  B60L7/26 ,  B60L11/1862 ,  B60L15/2009 ,  B60L2220/46 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2250/26 ,  B60L2260/28 ,  B60T7/042 ,  B60T8/171 ,  B60T8/172 ,  B60T8/72 ,  B60T13/741 ,  B60T2270/402 ,  B60T2270/604 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/72 ,  Y02T10/7275

Abstract: A brake system (100) and a brake method for a four-wheel drive electric vehicle and a four-wheel drive electric vehicle, in the system, according to a brake mode of the electric vehicle, a state of charge of a battery pack (4) and a vehicle speed, a first brake control unit controls a motor (6) to brake a wheel (9) through a motor controller (2) and a second brake control unit controls a brake actuator (12) to brake the wheels (9). The first brake control unit further determines whether a brake torque of the brake actuator (12) on the wheels (9) fails. If yes, the first brake control unit controls the motor (6) to brake the corresponding wheel (9) through the motor controller (2).

公开(公告)号：EP4507069A1

公开(公告)日：2025-02-12

申请号：EP23794918.5

申请日：2023-03-28

Applicant: BYD Company Limited

Inventor： LING, Heping ,  YAN, Lei ,  GAO, Wen ,  XIE, Jinyue ,  ZHU, Ke

IPC: H01M10/615 ,  H01M10/625 ,  H01M10/637 ,  B60K1/00 ,  B60L58/27 ,  H02J7/00

Abstract: A battery self-heating control method and system, and an electric vehicle. The control method comprises: within a first preset time period in at least part of a control cycle in which drive control is performed on an electric motor, controlling a turned-on state of an upper bridge arm assembly and a lower bridge arm assembly to be a self-heating state, wherein in the self-heating state, there is an alternating current on a connecting line between the electric motor and a battery pack, such that a first battery group and/or a second battery group perform(s) charging and discharging alternately, thereby heating the battery pack.