公开(公告)号：EP4342716A1

公开(公告)日：2024-03-27

申请号：EP22875050.1

申请日：2022-09-29

Applicant: BYD Company Limited

Inventor： XU, Luhui ,  XU, Xiangshuai ,  REN, Shaopeng ,  DU, Zhiyong

IPC: B60L15/20 ,  B60L58/27 ,  B60H1/14

Abstract: A method and an apparatus for controlling heating of an electric drive system of a vehicle, a heating system, and a vehicle are provided. The electric drive system includes a motor controller and a motor. The method includes: determining that a vehicle is in a travelling state; obtaining a rotational speed value and a torque control value of the motor and obtaining a carrier instruction value of the motor controller in response to a heating instruction; obtaining a first current instruction value based on the rotational speed value and the torque control value, and obtaining a second current instruction value based on the torque control value and the first current instruction value; adjusting a control signal of the motor controller based on at least one of the second current instruction value and a second carrier frequency; and controlling the motor to operate based on the adjusted control signal, so that the electric drive system generates heat.

公开(公告)号：EP4546642A1

公开(公告)日：2025-04-30

申请号：EP23829911.9

申请日：2023-06-09

Applicant: BYD Company Limited

Inventor： XU, Luhui ,  REN, Shaopeng ,  DU, Zhiyong

IPC: H02P29/62

Abstract: A motor driving system, a vehicle and a driving system control method are provided. The system comprises a heating controller, a motor controller and a driving motor. The heating controller is used for generating multiple PWM signals when the vehicle is in a parking state and a heating request is received, and outputting the multiple PWM signals to a motor controller so as to control the motor controller to output an alternating current to a stator, thereby enabling the stator and a rotor to generate heat in a static state and conduct the heat to an apparatus that initiates the heating request.

公开(公告)号：EP4534343A1

公开(公告)日：2025-04-09

申请号：EP23810672.8

申请日：2023-04-03

Applicant: BYD Company Limited

Inventor： XU, Luhui ,  DU, Zhiyong ,  REN, Shaopeng

IPC: B60L58/27

Abstract: A battery energy processing apparatus and a vehicle. The apparatus comprises: an inverter, an energy storage element and a controller. In a first preset state, the controller is used for controlling the inverter to enable the energy storage element to be charged and discharged by a battery so as to realize self-heating of the battery; in a second preset state, at least part of the energy storage element and at least part of the inverter jointly form an adaptive voltage charger, and the controller is used for controlling the adaptive voltage charger to charge the battery.