公开(公告)号：EP3319854A1

公开(公告)日：2018-05-16

申请号：EP16823847.5

申请日：2016-07-08

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  MENG, Fanliang ,  SHI, Mingchuan ,  CHEN, Weiqiang

IPC: B60W30/045

CPC classification number: B60W30/045 ,  B60K1/00 ,  B60K7/00 ,  B60K7/0007 ,  B60K17/043 ,  B60K17/14 ,  B60K17/34 ,  B60K2007/0092 ,  B60L15/2036 ,  B60L2240/24 ,  B60L2240/423 ,  B60L2250/00 ,  B60L2260/28 ,  B60W2540/18 ,  B60W2710/083 ,  B60W2710/207 ,  B60W2720/14 ,  B60W2720/403 ,  B60W2720/406 ,  B60Y2200/91 ,  B60Y2400/3032 ,  B60Y2400/304 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

Abstract: A method and a system for controlling a vehicle (100) with four-wheel drive are provided. The method includes: acquiring a vehicle condition information parameter by a vehicle condition information collector; obtaining a radius of turning circle to be reduced from a driver by a turning circle receiver (40); obtaining a controlling yaw moment corresponding to the radius of turning circle to be reduced according to the vehicle condition information parameter and the radius of turning circle to be reduced by a turning circle controller (11); and distributing the controlling yaw moment to four wheels (90) of the vehicle (100) according to an intensity level of the radius of turning circle to be reduced and the vehicle condition information parameter by the turning circle controller (11), such that the vehicle (100) turns circle.

公开(公告)号：EP3274226A1

公开(公告)日：2018-01-31

申请号：EP16767738.4

申请日：2016-03-21

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  LIU, Changjiu ,  LIU, Guorui ,  LAI, Chengming ,  LI, Guizhong

IPC: B60W20/00 ,  B60W30/18

CPC classification number: B60W20/13 ,  B60K6/442 ,  B60K6/48 ,  B60K2006/4808 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W20/10 ,  B60W20/40 ,  B60W50/0097 ,  B60W2510/1005 ,  B60W2510/244 ,  B60W2520/10 ,  B60W2540/103 ,  B60W2540/30 ,  B60W2550/142 ,  B60W2550/20 ,  B60Y2200/92 ,  B60Y2300/182 ,  B60Y2300/43 ,  B60Y2300/60 ,  B60Y2300/91 ,  F02N11/00 ,  F02N2200/061 ,  F02N2200/0801 ,  F02N2200/0802 ,  F02N2200/101 ,  F02N2200/124 ,  Y02T10/6221 ,  Y02T10/626 ,  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; determining whether the vehicle is within a speed start-stop interval according to the current gear position of the hybrid electric vehicle and the current electric charge level of the power battery; obtaining a slope of a road on which the vehicle is driving and a current speed of the hybrid electric vehicle, if the vehicle is within a speed start-stop interval; and controlling 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 vehicle is driving and the current speed of the vehicle.

公开(公告)号：EP4549277A1

公开(公告)日：2025-05-07

申请号：EP23841841.2

申请日：2023-04-25

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  SHI, Mingchuan ,  WANG, Hongxia ,  FU, Luo

IPC: B60W30/18 ,  B60W10/14 ,  B60W60/00

Abstract: A vehicle drift control method and system, and a vehicle. The vehicle drift control method comprises: in response to a drift operation instruction by a user, obtaining a whole-vehicle required torque and vehicle state parameters; determining a front-axle torque ratio according to the state parameters; determining a front-axle required torque according to the front-axle torque ratio and the whole-vehicle required torque; and performing torque control respectively on a front-axle motor and a rear-axle motor according to the front-axle required torque and the rear-axle required torque, such that the torque distribution between the front and rear axles is more reasonable, and the drift duration and the drift safety are improved.

公开(公告)号：EP4530119A1

公开(公告)日：2025-04-02

申请号：EP23806851.4

申请日：2023-05-12

Applicant: BYD Company Limited

Inventor： LING, Heping ,  SHI, Mingchuan ,  ZHANG, Hao ,  YIN, Chao ,  WANG, Hongxia

IPC: B60L15/20

Abstract: A vehicle torque control method, comprising: step 101, acquiring the wheel speed of a wheel corresponding to a vehicle driver shaft, and according to the wheel speed of the wheel, calculating the equivalent rotating speed of a motor; step 102, acquiring the actual rotating speed of the motor corresponding to the driver shaft, and according to the equivalent rotating speed of the motor and the actual rotating speed of the motor corresponding to the driver shaft, calculating the equivalent rotating speed difference of the motor of the driver shaft to which the wheel is mounted; step 103, acquiring a corrected torque value according to the equivalent rotating speed difference of the motor of the driver shaft to which the wheel is mounted; and step 104, according to the corrected torque value, adjusting the output torque of the motor corresponding to the driver shaft. Also disclosed are a vehicle torque control apparatus, an electronic device, a storage medium, and a vehicle. The method reduces the difficulty of calculating the slip ratio. According to the state of the single wheel and the state of the single shaft, the torque of the motor of the driver shaft corresponding to a slipping wheel can be adjusted, and the adhesion utilization rate of the whole vehicle is improved, thereby improving the power performance of the whole vehicle, and avoiding the power loss caused by controlling torque reduction by means of the slip ratio.

公开(公告)号：EP4527671A1

公开(公告)日：2025-03-26

申请号：EP23807045.2

申请日：2023-05-18

Applicant: BYD Company Limited

Inventor： LING, Heping ,  SHI, Mingchuan ,  WANG, Hongxia ,  ZHANG, Hao ,  ZHOU, Binhao

IPC: B60L15/20

Abstract: A vehicle torque control method, comprising: step 101, acquiring a front axle equivalent axle speed and a rear axle equivalent axle speed of a vehicle, and determining an equivalent axle speed difference between front axles and rear axles of the vehicle according to the front axle equivalent axle speed and the rear axle equivalent axle speed; step 102, determining a drive shaft torque adjustment value according to the equivalent axle speed difference; and step 103, adjusting an output torque of a drive shaft motor according to the drive shaft torque adjustment value. Also disclosed are a vehicle torque control apparatus, an electronic device, a storage medium, and a vehicle. The sliding of wheels is controlled by means of an axle speed difference between a front drive shaft and a rear drive shaft, and the slipping of the wheels does not need to be controlled according to speed, so that dual-shaft closed-loop control can be performed in a full-speed domain; the sliding of the wheels is detected by means of the axle speed difference, so that quicker control is achieved, and a motor wheel speed difference between two shafts can be regulated and controlled in time, thereby avoiding endless power consumption.

公开(公告)号：EP4501691A1

公开(公告)日：2025-02-05

申请号：EP23807067.6

申请日：2023-05-19

Applicant: BYD Company Limited

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

IPC: B60L15/20

Abstract: A vehicle torque control method. The method comprises: 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, such that a required power of the vehicle can be met while a slip state of the vehicle is eliminated, and thus the dynamic performance of the whole vehicle is improved.

公开(公告)号：EP4190608A1

公开(公告)日：2023-06-07

申请号：EP21850990.9

申请日：2021-07-26

Applicant: BYD Company Limited

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

IPC: B60H1/00

Abstract: A vehicle battery thermal management system, a vehicle thermal management system, and an electric vehicle are disclosed. The vehicle battery thermal management system includes: a heat conducting element (2) connected to a vehicle air conditioning system (1) and a self heating circuit (4) connected to a vehicle power battery (3). The heat conducting element (2), a compressor (101), and an outdoor condenser (102) constitute a battery refrigeration loop, and the battery refrigeration loop absorbs heat from the power battery (3) through a refrigerant in the heat conducting element (2) to cool down the power battery (3). The self heating circuit (4) and the power battery (3) constitute a battery self heating loop, and the power battery (3) implements high-frequency alternating charging and discharging for self heating through the self heating circuit (4) in the battery self heating loop.

公开(公告)号：EP4160862A1

公开(公告)日：2023-04-05

申请号：EP21818937.1

申请日：2021-06-04

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  YAN, Lei ,  XIONG, Yong ,  GAO, Wen

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/615 ,  B60L53/00 ,  B60L53/24 ,  B60L58/27

Abstract: The present disclosure belongs to the field of vehicles, and relates to a battery energy processing device and method and a vehicle, which can charge batteries during self-heating of the batteries. The battery energy processing device includes: an energy exchange interface; a first circuit, wherein a first end of the first circuit is connected with the energy exchange interface, and a second end of the first circuit is connected with a battery; a second circuit, wherein a first end of the second circuit is connected with the battery; an energy storage unit, connected with a second end of the second circuit; and a controller, configured to: in a first preset state, control the second circuit to charge and discharge the battery to heat the battery, and control the first circuit to receive energy from the energy exchange interface and output the energy to the battery to charge the battery.

公开(公告)号：EP4086112A1

公开(公告)日：2022-11-09

申请号：EP20910329.0

申请日：2020-12-10

Applicant: BYD Company Limited

Inventor： LING, Heping ,  PAN, Hua ,  XIE, Feiyue ,  HUANG, Ri ,  ZHENG, Yihao

IPC: B60L58/27

Abstract: The present disclosure relates to the technical field of vehicles, and provides a vehicle and an energy conversion device and a control method therefor. The energy conversion device includes a motor controller, a bus capacitor, a first switch module, a motor, and a second switch module. By controlling the first switch module and the second switch module to be turned on/off, a motor driving circuit can be formed by a battery pack, the first switch module, the bus capacitor, the motor controller, and the motor, and a charging and discharging circuit can be formed by the battery pack, the second switch module, the motor, the motor controller, and the bus capacitor.

公开(公告)号：EP4019322A1

公开(公告)日：2022-06-29

申请号：EP20869465.3

申请日：2020-08-18

Applicant: BYD Company Limited

Inventor： LIAN, Yubo ,  LING, Heping ,  LI, Jicheng ,  PAN, Hua ,  MOU, Li

IPC: B60L58/27

Abstract: A cooperative control method is disclosed. The cooperative control method includes: acquiring a target heating power, a target driving power, and a target charging and discharging power; acquiring a first heating power of a motor coil according to the target charging and discharging power; acquiring a second heating power of the motor coil according to the target driving power; adjusting a first quadrature axis current and a first direct axis current to a target quadrature axis current and a target direct axis current to cause the difference between the sum of the first heating power and the second heating power and the target heating power to be within the preset range; and acquiring a sampling current value on each phase coil and a motor rotor position, and calculating a duty cycle of each phase bridge arm in a reversible PWM rectifier according to the above information.