公开(公告)号：US20250083741A1

公开(公告)日：2025-03-13

申请号：US18758591

申请日：2024-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Dongsheng YANG ,  Guoxiang LU ,  Xuli ZHUANG ,  Lizhong TANG ,  Boliang XU ,  Zhaoyu LEI

IPC: B62D6/10

Abstract: A system for controlling a vehicle, includes: a central controller and multiple vehicle components. The vehicle components correspond to multiple functional domains, and at least one vehicle component in each of the functional domains is connected to the central controller. The central controller is configured to send first control information to the at least one vehicle component. The functional domains includes a power domain. A vehicle component in the power domain includes a motor controller and multiple drive motors corresponding to wheels and respectively driving the wheels. The first control information includes torque allocation information of each of the drive motors. The central controller is configured to send the torque allocation information to the motor controller according to a vehicle driving scenario.

公开(公告)号：US20230202454A1

公开(公告)日：2023-06-29

申请号：US18175217

申请日：2023-02-27

Applicant: BYD COMPANY LIMITED

Inventor： Zhile CHEN ,  Jiquan WANG ,  Boliang XU ,  Chunsheng WANG ,  Lei ZHANG

IPC: B60W20/13 ,  B60W10/06 ,  B60W10/08 ,  B60W50/06

CPC classification number: B60W20/13 ,  B60W10/06 ,  B60W10/08 ,  B60W50/06 ,  B60W2555/20 ,  B60W2510/244

Abstract: The present disclosure provides a power conservation control method and apparatus for a vehicle, and a readable storage medium. The method part includes: obtaining a minimum predicted ambient temperature within a preset time period; determining a minimum ambient temperature according to the minimum predicted ambient temperature and a current ambient temperature; if the minimum ambient temperature is less than or equal to a first preset temperature threshold, determining a minimum power conservation point of a traction battery according to the minimum ambient temperature; and performing mandatory power conservation control on the vehicle according to the minimum power conservation point, so that the remaining power of the traction battery is not less than the minimum power conservation point.

公开(公告)号：US20250083683A1

公开(公告)日：2025-03-13

申请号：US18782830

申请日：2024-07-24

Applicant: BYD COMPANY LIMITED

Inventor： Dongsheng YANG ,  Guoxiang LU ,  Xuli ZHUANG ,  Lizhong TANG ,  Boliang XU ,  Zhaoyu LEI

IPC: B60W50/035 ,  B60W10/08 ,  B60W10/20 ,  B60W50/02

Abstract: A vehicle control system includes: a central controller and a plurality of vehicle components belonging to a plurality of different functional domains. At least one vehicle component in a first functional domain of the plurality of different functional domains and another vehicle component in the first functional domain are connected to each other through a first network, and are directly connected to the central controller. At least one vehicle component in a second functional domain of the plurality of different functional domains and another vehicle component in the second functional domain are connected to each other through a second network, and are directly connected to the central controller. At least one vehicle component in the first functional domain is connected to at least one vehicle component in the second functional domain through a third network. The central controller can send control information to at least one vehicle component.

公开(公告)号：US20240356473A1

公开(公告)日：2024-10-24

申请号：US18758734

申请日：2024-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Tao QIN ,  Chunsheng WANG ,  Boliang XU ,  Wei XIONG ,  An CAO

IPC: H02P23/14 ,  B60L15/20

CPC classification number: H02P23/14 ,  B60L15/20 ,  B60L2240/423

Abstract: A vehicle includes a motor and a motor controller. A damping control method for the vehicle includes: obtaining a rotation speed of the motor; filtering the rotation speed through a first low-pass filter to obtain a first filtered rotation speed, filtering the rotation speed through a second low-pass filter to obtain a second filtered rotation speed, and obtaining, by a vehicle controller, a rotation speed fluctuation value based on the first filtered rotation speed and the second filtered rotation speed; obtaining, by the vehicle controller, an active damping adjustment coefficient and an active damping clipped torque based on the rotation speed; obtaining, by the vehicle controller, an active damping torque based on the rotation speed fluctuation value, the active damping adjustment coefficient, and the active damping clipped torque; and controlling, by the motor controller, the motor based on the active damping torque.

公开(公告)号：US20240351574A1

公开(公告)日：2024-10-24

申请号：US18759757

申请日：2024-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Rujie LIU ,  Chunsheng WANG ,  Boliang XU ,  Xinli CHEN

IPC: B60W20/40 ,  B60W10/06 ,  B60W10/30 ,  B60W50/00

CPC classification number: B60W20/40 ,  B60W10/06 ,  B60W10/30 ,  B60W2050/0083 ,  B60W2400/00 ,  B60W2510/087 ,  B60W2510/30 ,  B60W2710/0644 ,  B60W2710/0677 ,  B60W2710/30

Abstract: A method for cooling a driving motor with a locked rotor of a vehicle is disclosed. The vehicle includes the driving motor, an engine, an engine end oil pump, and a cooling flow path. The engine is configured to drive the engine end oil pump, and the cooling flow path connects the engine end oil pump to the driving motor. The method includes: in response to determining that a driving mode of the vehicle is an electric mode and that the vehicle meets a locked rotor motor trigger condition, and detecting that a current temperature of the driving motor is greater than an auxiliary cooling starting temperature of the engine, controlling the engine to start to cause the engine end oil pump to drive a coolant in the cooling flow path to cool the driving motor.

公开(公告)号：US20240097599A1

公开(公告)日：2024-03-21

申请号：US18524070

申请日：2023-11-30

Applicant: BYD COMPANY LIMITED

Inventor： Chunsheng WANG ,  Boliang XU ,  Wei XIONG ,  Tao QIN ,  An CAO

IPC: H02P29/032

CPC classification number: H02P29/032

Abstract: A method for protecting a motor from overloading includes: acquiring a present effective value of a phase current of a motor; performing time integration on the present effective value of the phase current, to obtain a first integral value; obtaining a first threshold; performing overload detection according to the first threshold and the first integral value; determining a target limiting current for operation of the motor if an overload occurs; and controlling the operation of the motor based on the target limiting current.