公开(公告)号：EP4517933A1

公开(公告)日：2025-03-05

申请号：EP23794930.0

申请日：2023-03-29

Applicant: BYD Company Limited

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

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

Abstract: A battery self-heating device, comprising: a bridge arm converter (3), an energy storage element (5), an inductor (4) and a controller. The controller is configured to control, in a preset state, the connection and disconnection of the bridge arm converter (3), such that a first power battery (1) and a second power battery (2) are respectively charged/discharged by means of the inductor (4), and each form a freewheeling circuit by means of the energy storage element (5), so as to realize the continuous heating of the first power battery (1) and the second power battery (2). Further disclosed are a self-heating method executed by the device, and a vehicle having the device. Two power batteries are provided, and an energy storage element (5) is provided for freewheeling, such that an oscillation current can be generated between each of the two power batteries and an inductor (4), so as to realize low-cost and high-efficient battery self-heating, and the stability of the total voltage of the two power batteries and the continuous flow of current in the batteries can also be ensured, thereby ensuring the safety of the batteries during the self-heating process.

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：EP3100884B1

公开(公告)日：2020-01-22

申请号：EP14881104.5

申请日：2014-10-29

Applicant: BYD Company Limited

Inventor： YANG, Dongsheng ,  LIAN, Yubo ,  ZHANG, Jintao ,  LUO, Hongbin

IPC: B60W20/10 ,  B60W10/06 ,  B60W10/08 ,  B60W10/02 ,  B60W10/26 ,  B60W50/08 ,  B60K6/387 ,  B60K6/442

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：EP3368367A1

公开(公告)日：2018-09-05

申请号：EP16859025.5

申请日：2016-10-26

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LUO, Hongbin ,  ZHANG, Jintao ,  YANG, Dongsheng

IPC: B60L15/20 ,  B60L3/10 ,  B60T8/1755 ,  B60W30/02

CPC classification number: B60W30/02 ,  B60L3/102 ,  B60L7/18 ,  B60L7/26 ,  B60L15/2009 ,  B60L2220/46 ,  B60L2240/22 ,  B60L2240/24 ,  B60L2240/423 ,  B60L2240/461 ,  B60L2240/465 ,  B60T8/1755 ,  B60T8/17552 ,  B60T2230/02 ,  B60T2250/03 ,  B60T2270/86 ,  B60W10/08 ,  B60W10/188 ,  B60W40/101 ,  B60W40/114 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2520/20 ,  B60W2520/26 ,  B60W2520/28 ,  B60W2710/08 ,  B60W2710/083 ,  B60W2710/18 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7275

Abstract: The present disclosure discloses an electric vehicle and an active safety control system and method thereof. The system includes: a wheel speed detection module configured to detect a wheel speed to generate a wheel speed signal; a steering wheel rotation angle sensor and a yaw rate sensor module, configured to detect state information of the electric vehicle; a motor controller; and an active safety controller configured to receive the wheel speed signal and state information, obtain state information of a battery pack and state information of four motors, obtain a first side slip signal or a second side slip signal according to the wheel speed signal, the state information, the battery pack and the four motors, and according to the first side slip signal or the second side slip signal, control four hydraulic brakes of the electric vehicle and control the four motors by using the motor controller.

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：EP3100884A1

公开(公告)日：2016-12-07

申请号：EP14881104.5

申请日：2014-10-29

Applicant: BYD Company Limited

Inventor： YANG, Dongsheng ,  LIAN, Yubo ,  ZHANG, Jintao ,  LUO, Hongbin

IPC: B60K1/02 ,  B60K6/26 ,  B60W10/06 ,  B60W10/08

CPC classification number: B60W20/10 ,  B60K1/02 ,  B60K6/26 ,  B60K6/387 ,  B60K6/442 ,  B60K6/445 ,  B60K6/52 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60W10/26 ,  B60W20/11 ,  B60W30/182 ,  B60W50/082 ,  B60W2510/1005 ,  B60W2510/244 ,  B60W2540/04 ,  B60W2540/10 ,  B60W2550/142 ,  B60W2550/143 ,  B60W2710/06 ,  B60W2710/08 ,  B60W2710/10 ,  B60Y2200/92 ,  B60Y2300/192 ,  B60Y2300/43 ,  B60Y2300/60 ,  B60Y2300/70 ,  Y02T10/6234 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y02T10/84 ,  Y10S903/916 ,  Y10S903/93

Abstract: The present invention provides a method for controlling an engine unit in a vehicle. The vehicle includes an engine unit, a transmission unit adapted to selectively couple with the engine unit and also configurd to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit, a power switching device, a second motor generator configured to drive at least one of front and rear wheels, and a power battery that is respectively connected to the first motor generator and the second motor generator. The method includes: acquiring an operating mode of a vehicle and an operating parameter of the vehicle; and controlling an engine unit according to an operating parameter and an operating mode to start or stop.