公开(公告)号：WO2011023137A1

公开(公告)日：2011-03-03

申请号：PCT/CN2010/076444

申请日：2010-08-29

Applicant: BYD COMPANY LIMITED ,  TANG, Xiaohua ,  DU, Zhiyong ,  ZHOU, Yongzhuang ,  XIA, Cong ,  CHENG, Lipin ,  MA, Hui

Inventor： TANG, Xiaohua ,  DU, Zhiyong ,  ZHOU, Yongzhuang ,  XIA, Cong ,  CHENG, Lipin ,  MA, Hui

IPC: G01R31/34 ,  G01R19/145 ,  H02H3/13

CPC classification number: H02H7/09 ,  G01R31/026 ,  G01R31/343 ,  H02P29/0243

Abstract: An open phase detection system and method for a three-phase motor (5) are provided, and the system comprises: a signal generating unit (1) coupled to the three-phase motor (5) and configured to generate a driving signal for driving the three-phase motor (5), a detecting unit (2) coupled to the signal generating unit (1) and configured to detect whether the signal generating unit (1) generates the driving signal and to detect three-phase current values of the three-phase motor (5), and a determining unit (3) coupled to the detecting unit (2) and configured to determine whether the three-phase motor (5) has open phase according to the three phase current values detected by the detecting unit (2) when the driving signal was detected.

Abstract translation: 提供了一种用于三相电动机（5）的开放相位检测系统和方法，该系统包括：信号发生单元（1），耦合到三相电动机（5）并被配置为产生驱动信号 所述三相电动机（5），耦合到所述信号发生单元（1）的检测单元（2），用于检测所述信号产生单元（1）是否产生所述驱动信号，并且检测所述三相电动机 三相电动机（5）和耦合到所述检测单元（2）的确定单元（3），并且被配置为根据由所述检测单元检测到的三相电流值来确定所述三相电动机（5）是否具有断开相位 检测到驾驶信号时的单位（2）。

公开(公告)号：EP4087118A1

公开(公告)日：2022-11-09

申请号：EP20908787.3

申请日：2020-12-29

Applicant: BYD Company Limited

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

IPC: H02P29/024 ,  H02P29/028

Abstract: The present invention provides a motor control system and a vehicle. The motor control system (1) includes a motor drive module (10), a multi-core processing module (20), and a safety logic module (30). The multi-core processing module (20) includes a main function core (21) and a lockstep monitoring core (22). The main function core (21) is configured to obtain sampling data, and when any one of the sampling data, a running status of the main function core (21), a motor control signal, and a running status of a motor is abnormal, the lockstep monitoring core (22) outputs a safety trigger signal; and the safety logic module (30) is configured to output an instruction for prohibiting execution of the motor control signal to the motor drive module (10) when receiving the safety trigger signal.

公开(公告)号：EP4087077A1

公开(公告)日：2022-11-09

申请号：EP20909205.5

申请日：2020-11-25

Applicant: BYD Company Limited

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

IPC: H02H7/08 ,  H02P27/08

Abstract: A motor control system and a motor control device are provided. The system includes a master control module, a drive module, and a monitoring module. The master control module is configured to output a low-voltage drive signal to the drive module, the drive module converts the low-voltage drive signal into a high-voltage drive signal and outputs the high-voltage drive signal to a power unit, and the power unit outputs, according to the high-voltage drive signal, a power supply drive signal provided by a high-voltage battery. The monitoring module is electrically connected with the master control module and the drive module, and is configured to acquire the low-voltage drive signal, and output a fault signal to the master control module when the low-voltage drive signal is abnormal, to control the master control module to stop outputting the low-voltage drive signal. The monitoring module includes at least an auxiliary power supply, and the auxiliary power supply is independent of the master control module and provides a working power supply for the monitoring module.

公开(公告)号：EP4109696A1

公开(公告)日：2022-12-28

申请号：EP21760281.2

申请日：2021-02-25

Applicant: BYD Company Limited

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

IPC: H02H7/08 ,  H02P29/00 ,  B60L15/00

Abstract: A motor control system and a vehicle. The motor control system (10) includes: a vehicle control unit (110), configured to obtain vehicle state data and output an instruction for cutting off motor output torque when determining an unexpected power transmission failure according to the vehicle state data; and a motor controller unit (120), connected to the vehicle control unit (110), and configured to stop outputting motor control torque in response to the instruction for cutting off motor output torque.

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.

公开(公告)号：EP2831995A1

公开(公告)日：2015-02-04

申请号：EP13767963.5

申请日：2013-03-26

Applicant: BYD Company Limited

Inventor： DU, Zhiyong ,  CHEN, Xing ,  XIAO, Kai

IPC: H02P6/06 ,  H02P6/08 ,  H02P6/04 ,  H02P21/00

CPC classification number: H02P21/0035 ,  H02P21/0003 ,  H02P21/0021 ,  H02P21/22

Abstract: A method for controlling a rotation rate of an electric motor is provided. The method comprises following steps: judging whether an absolute value of a difference between an objective rotation rate of the electric motor and an actual rotation rate of the electric motor is greater than or equal to a predetermined value; and if yes, compensating a q axis current of the electric motor to adjust the rotation rate.

公开(公告)号：EP2473863A1

公开(公告)日：2012-07-11

申请号：EP10811297.0

申请日：2010-08-29

Applicant: BYD Company Limited

Inventor： TANG, Xiaohua ,  DU, Zhiyong ,  ZHOU, Yongzhuang ,  XIA, Cong ,  CHENG, Lipin ,  MA, Hui

IPC: G01R31/34 ,  G01R19/145 ,  H02H3/13

CPC classification number: H02H7/09 ,  G01R31/026 ,  G01R31/343 ,  H02P29/0243

Abstract: An open phase detection system and method for a three-phase motor (5) are provided, and the system comprises: a signal generating unit (1) coupled to the three-phase motor (5) and configured to generate a driving signal for driving the three-phase motor (5), a detecting unit (2) coupled to the signal generating unit (1) and configured to detect whether the signal generating unit (1) generates the driving signal and to detect three-phase current values of the three-phase motor (5), and a determining unit (3) coupled to the detecting unit (2) and configured to determine whether the three-phase motor (5) has open phase according to the three phase current values detected by the detecting unit (2) when the driving signal was detected.

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.