公开(公告)号：EP4087117A1

公开(公告)日：2022-11-09

申请号：EP20909749.2

申请日：2020-11-25

Applicant: BYD Company Limited

Inventor： DU, Zhiyong ,  XU, Luhui ,  YU, Yilong ,  QI, Axi

IPC: H02P29/00

Abstract: A motor control system and a motor control apparatus are provided. The system includes a drive unit, a backup control unit, and a power unit. The drive unit is electrically connected to the power unit, and is configured to convert a received low-voltage drive signal into a high-voltage drive signal and output the high-voltage drive signal to the power unit. The power unit outputs, according to the high-voltage drive signal, a power supply drive signal provided by a high-voltage battery. The power supply drive signal is configured to drive a motor connected to the power unit to rotate. The backup control unit is electrically connected to the drive unit. The drive unit is configured to output a diagnosis signal indicating a running status of the drive unit to the backup control unit. If the diagnosis signal received by the backup control unit indicates that the drive unit is in a fault state, the backup control unit controls the drive unit to stop working, so that the drive unit stops outputting the high-voltage drive signal to the power unit, to control the motor to stop rotating.

公开(公告)号：EP3014734A1

公开(公告)日：2016-05-04

申请号：EP14817799.1

申请日：2014-06-30

Applicant: BYD Company Limited

Inventor： TANG, Xiaohua ,  YANG, Guangming ,  ZHANG, Xinxin ,  DU, Zhiyong ,  HU, Min ,  YU, Yilong ,  LIU, Jian ,  TANG, Zheqing ,  TANG, Fu

IPC: H02J7/02 ,  H02J3/32

CPC classification number: B60L11/185 ,  B60L1/006 ,  B60L11/1803 ,  B60L11/1811 ,  B60L11/1812 ,  B60L11/1816 ,  B60L11/1818 ,  B60L11/1838 ,  B60L15/007 ,  B60L15/02 ,  B60L2210/30 ,  B60L2210/40 ,  H02J3/32 ,  H02J5/00 ,  H02J7/02 ,  H02J7/022 ,  H02M7/487 ,  H04L12/10 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T10/7258 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y04S10/126

Abstract: A power system for an electric vehicle, an electric vehicle and a motor controller for an electric vehicle are provided. The power system includes: a power battery (10); a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a motor control switch (40); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and a third terminal of the motor control switch (40), and configured to control the charge-discharge control module (50) and the motor control switch (40) according to a current working mode of the power system.