公开(公告)号：US20250018799A1

公开(公告)日：2025-01-16

申请号：US18901427

申请日：2024-09-30

Applicant: BYD COMPANY LIMITED

Inventor： Heping LING ,  Mingchuan SHI ,  Pengxiang LI ,  Chao YIN ,  Guixin ZHOU

IPC: B60L3/10

Abstract: A method includes: acquiring a first rotating speed of a first drive motor of a vehicle and a second rotating speed of a second drive motor of the vehicle, where when the first rotating speed is higher than the second rotating speed, an angular acceleration corresponding to the first rotating speed is a first angular acceleration, and an angular acceleration corresponding to the second rotating speed is a second angular acceleration; and determining, in response to that the first angular acceleration is greater than 0, a trackslip trend of the first drive motor according to at least the first rotating speed, the second rotating speed, the first angular acceleration, and the second angular acceleration.

公开(公告)号：US20200031357A1

公开(公告)日：2020-01-30

申请号：US16331333

申请日：2017-08-25

Applicant: BYD COMPANY LIMITED

Inventor： Heping LING ,  Fanliang MENG ,  Mingchuan SHI ,  Yanfei XIONG ,  Weiqiang CHEN

IPC: B60W40/076 ,  B60W30/18 ,  B60K7/00 ,  B60W40/105

Abstract: A hill descent system for a vehicle and a control method thereof comprising: wheels; wheel speed sensors used for detecting the speeds of the wheels; motors used for selectively driving or braking the wheels; a motor controllers, for controlling the working states of the motors; resolver sensors for detecting the rotational speeds of the motors; and a vehicle control unit for determining the actual downhill speed of the vehicle and adjusting the working states of the motors to control the descent of the vehicle.

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：US20250074209A1

公开(公告)日：2025-03-06

申请号：US18952913

申请日：2024-11-19

Applicant: BYD COMPANY LIMITED

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

IPC: B60L15/20

Abstract: A vehicle torque control method includes: a wheel speed of a wheel corresponding to a vehicle drive shaft is acquired by a vehicle controller, and an equivalent rotating speed of a motor is calculated based on the wheel speed of the wheel. An actual rotating speed of the motor corresponding to the drive shaft is acquired by the vehicle controller, and based on the equivalent rotating speed of the motor and the actual rotating speed of the motor corresponding to the drive shaft, an equivalent rotating speed difference of the motor corresponding to the drive shaft is calculated. A correcting torque value is acquired by the vehicle controller, based on the equivalent rotating speed difference of the motor corresponding to the drive shaft. An output torque of the motor corresponding to the drive shaft is adjusted by the vehicle controller, based on the correcting torque value.

公开(公告)号：US20250050731A1

公开(公告)日：2025-02-13

申请号：US18933585

申请日：2024-10-31

Applicant: BYD COMPANY LIMITED

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

IPC: B60K23/08 ,  B60K17/356

Abstract: A vehicle torque control method, comprising: 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; determining a drive shaft torque adjustment value according to the equivalent axle speed difference; and 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.

公开(公告)号：US20180201255A1

公开(公告)日：2018-07-19

申请号：US15743547

申请日：2016-07-08

Applicant: BYD COMPANY LIMITED

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

IPC: B60W30/045 ,  B60L15/20 ,  B60K7/00

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.