公开(公告)号：EP3888964A1

公开(公告)日：2021-10-06

申请号：EP19890217.3

申请日：2019-11-27

Applicant: BYD Company Limited

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

IPC: B60K11/02 ,  B60H1/06 ,  B60L58/24

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：EP3553343A1

公开(公告)日：2019-10-16

申请号：EP17886050.8

申请日：2017-12-15

Applicant: BYD Company Limited

Inventor： BEI, Ming ,  LING, Heping ,  ZHAI, Zhen ,  HUANG, Changan ,  LUO, Yongmeng

IPC: F16H48/34 ,  B62D11/04 ,  B60K17/16

Abstract: The present invention discloses a drive shaft locking device, a power-driven system, and a vehicle. The drive shaft locking device comprises a planetary gear mechanism; a first drive shaft, a second drive shaft, and a power joint device, wherein the power joint device comprises a first joint part and a second joint part, planetary carriers, the first drive shaft and the first joint part synchronously rotate, the first joint part can move along the axial direction relative to the first drive shaft, and the second drive shaft, the second joint part and a sun gear synchronously rotate; a joint part drive device, wherein the joint part drive device comprises a drive needle and a drive part, the drive needle is configured to be capable of rotating around the central axis of the sun gear along with a gear ring and capable of moving along the axial direction relative to the gear ring, and the drive part is used for driving the drive needle to drive the first joint part to move towards the direction close to the second joint part along the axial direction, so that the first joint part is jointed with the second joint part. Thus, the drive shaft locking device can lock two drive shafts and can improve the capability of the vehicle to get rid of the trouble.

公开(公告)号：EP3546797A1

公开(公告)日：2019-10-02

申请号：EP17887429.3

申请日：2017-12-15

Applicant: BYD Company Limited

Inventor： LING, Heping ,  ZHAI, Zhen ,  HUANG, Changan ,  LUO, Yongmeng

IPC: F16H48/34 ,  B62D11/04 ,  B60K17/02

Abstract: The present invention discloses a drive shaft locking device, a power-driven system, and a vehicle. The drive shaft locking device comprises a planetary gear mechanism, wherein the planetary gear mechanism comprises a sun gear, a planetary gear, a planetary carrier, and a gear ring; a first drive shaft, a second drive shaft, and a power joint device, wherein the power joint device comprises a first joint part and a second joint part, the first drive shaft is connected with one of the sun gear, the planetary carrier and the gear ring, the second drive shaft is connected with another one of the sun gear, the planetary carrier and the gear ring, the first drive shaft and the first joint part synchronously rotate, and the second drive shaft and the second joint part synchronously rotate; and a joint part drive device which comprises a drive needle and a drive part, wherein the drive part is used for driving the drive needle to drive the second joint part to move towards the direction close to the first joint part along the axial direction, so that the second joint part is jointed with the first joint part. Therefore, the drive shaft locking device can lock two drive shafts and improve the capability of the vehicle to get rid of the trouble.

公开(公告)号：EP3533646A1

公开(公告)日：2019-09-04

申请号：EP17864926.5

申请日：2017-10-30

Applicant: BYD Company Limited

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

IPC: B60K6/36 ,  B60W20/00 ,  B60K6/48

Abstract: The present invention discloses a power transmission system for a vehicle and a vehicle having same. The power transmission system for a vehicle includes: a power source; a first motor generator unit; a speed change unit, where the speed change unit is suitable for being selectively power-coupled to the power source, the speed change unit includes a speed change unit output portion, and the speed change unit output portion is suitable for outputting power from at least one of the power source and the first motor generator unit; a system power output portion; and a mode conversion device, where the speed change unit output portion is power-coupled to or power-decoupled from the system power output portion through the mode conversion device, so that the mode conversion device is suitable for decelerating the power received from the speed change unit output portion and then outputting the decelerated power to the system power output portion. In the power transmission system of the present invention, a quantity of work modes of the power transmission system may be increased, and a quantity of gears of the power transmission system is increased, thereby improving the power performance and the passing-through capability.

公开(公告)号：EP3521085A1

公开(公告)日：2019-08-07

申请号：EP17854571.1

申请日：2017-08-03

Applicant: BYD Company Limited

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

IPC: B60K6/54 ,  B60K6/44 ,  B60K6/36

Abstract: The present disclosure provides a power-driven system for a vehicle and a vehicle. The power-driven system comprises: an engine; a plurality of input shafts; a plurality of output shafts, the plurality of output shafts linking with a differential of the vehicle; a first clutch device, arranged between the engine and the plurality of input shafts, so that the engine selectively engages with at least one of the plurality of input shafts; a first motor generator, configured to link with the differential of the vehicle; and a second motor generator, wherein the second motor generator and the engine are located on an input side of the first clutch device, the plurality of input shafts is located on an output side of the first clutch device, and the second motor generator is configured to carry out stationary power generation using at least part of power of the engine when the vehicle is parked.

公开(公告)号：EP3476636A1

公开(公告)日：2019-05-01

申请号：EP17818961.9

申请日：2017-05-11

Applicant: BYD Company Limited

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

IPC: B60K6/36 ,  B60K17/08

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：EP3395596A1

公开(公告)日：2018-10-31

申请号：EP16877659.9

申请日：2016-12-15

Applicant: BYD Company Limited

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

IPC: B60K6/365

CPC classification number: F16H3/728 ,  B60K1/02 ,  B60K6/365 ,  B60K6/387 ,  B60K6/442 ,  B60K6/445 ,  B60K6/52 ,  B60K7/0007 ,  B60K2006/381 ,  F16H48/36 ,  Y02T10/6239

Abstract: The present invention discloses a power-driven system and a vehicle. The power-driven system includes: a power coupling device, where the power coupling device includes a first sun gear, a first planet carrier, a first ring gear, a second sun gear, a second planet carrier, a second ring gear, and a power transmission part, the power transmission part being coaxially linked to the first sun gear and the second sun gear; a power source, where the power source is configured to selectively connect to the power transmission part; a first motor generator and a second motor generator, where the first motor generator is linked to the first ring gear, and the second motor generator is linked to the second ring gear; and a first braking device directly or indirectly braking the power transmission part.

公开(公告)号：EP3353446A1

公开(公告)日：2018-08-01

申请号：EP16848042.4

申请日：2016-09-13

Applicant: BYD Company Limited

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

IPC: F16H48/11 ,  F16H48/10

CPC classification number: F16H48/11 ,  F16H2048/104

Abstract: A differential, a power transmission system, and a vehicle are provided. The differential includes: a first planetary carrier, a first gear ring, and a first planetary gear disposed on the first planetary carrier and meshed with the first gear ring; and a second planetary carrier, a second gear ring, and a second planetary gear disposed on the second planetary carrier and meshed with the second gear ring and the first planetary gear, in which the first gear ring and the second gear ring are configured as two power output ends of the differential, the first planetary carrier and the second planetary carrier are configured as power input ends of the differential, and a revolution radius of the first planetary gear is different from a revolution radius of the second planetary gear.

公开(公告)号：EP3337712A1

公开(公告)日：2018-06-27

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

CPC classification number: B62D5/0484 ,  B60T8/17552 ,  B62D5/0418 ,  B62D5/0463 ,  B62D5/0481 ,  B62D9/005 ,  B62D11/003 ,  B62D15/025 ,  Y02T10/7258

Abstract: An auxiliary steering system (100) and method for an electric vehicle and the electric vehicle are disclosed. The system includes a detection component (6A) including a first electric motor (4) and a detection controller (6) configured to determine whether a steering assist device (2) is normal, to continue to determine whether the steering assist device (2) is normal if yes, and to control a drive rack (5A) of the first electric motor (4) to drive wheels (17) of the electric vehicle to return and to output a steering failure signal, a steering wheel torque signal and a direction signal if no; an electric motor controller (8); a second electric motor (14); and a vehicle controller (7). The electric motor controller (8) is further configured to control the second electric motor (14) to increase a drive torque for an outer front wheel (17), to brake an inner rear wheel (17), and to stop driving an inner front wheel (17) and an outer rear wheel (17).

公开(公告)号：EP3274227A1

公开(公告)日：2018-01-31

申请号：EP16767739.2

申请日：2016-03-21

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  LIU, Changjiu ,  LIU, Guorui ,  HUANG, Dongyue

IPC: B60W20/00 ,  B60W10/08 ,  B60W10/06 ,  B60W30/182

CPC classification number: B60W20/12 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/10 ,  B60W20/13 ,  B60W50/0097 ,  B60W2050/0006 ,  B60W2510/1005 ,  B60W2510/244 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2540/103 ,  B60W2540/16 ,  B60W2540/30 ,  B60W2550/142 ,  B60W2710/0677 ,  B60W2710/086 ,  F02N11/00 ,  F02N11/0818 ,  F02N11/0837 ,  F02N11/0866 ,  F02N2200/061 ,  F02N2200/0801 ,  F02N2200/0802 ,  F02N2200/101 ,  F02N2200/124 ,  F02N2300/304 ,  Y02T10/52 ,  Y02T10/6286 ,  Y02T10/6291 ,  Y10S903/93

Abstract: The present disclosure provides a hybrid electric vehicle, a drive control method and a drive control device of a hybrid electric vehicle. The drive control method includes: obtaining a current gear position of the hybrid electric vehicle and a current electric charge level of a power battery; obtaining a slope of a road on which the hybrid electric vehicle is driving, if the current gear position of the hybrid electric vehicle and the current electric charge level of the power battery meet a preset requirement; and causing a working state of an engine and/or a motor of the hybrid electric vehicle according to the slope of the road on which the hybrid electric vehicle is driving.