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.

公开(公告)号：EP3992020A1

公开(公告)日：2022-05-04

申请号：EP20835108.0

申请日：2020-06-18

Applicant: BYD Company Limited

Inventor： XU, Luhui ,  DU, Zhiyong ,  WAN, Jiawei ,  LI, Caiwen

IPC: B60L53/22 ,  B60L53/24 ,  H02J7/02 ,  H02J7/00

Abstract: An energy conversion apparatus, a power system, and a vehicle are provided. The energy conversion apparatus includes a motor coil (11) and a bridge arm converter (12). The bridge arm converter (12) is connected to an external battery (200) and an external charging port (10). The motor coil (11) is connected to the external charging port (10), and the motor coil (11) includes a plurality of phase windings, each phase winding includes N coil units, first ends of the N coil units of each phase winding are connected together and then connected to a corresponding phase bridge arm of the plurality of phase bridge arms, and second ends of coil units in each phase winding are connected to second ends of corresponding coil units in other phase windings and then selectively connected to the charging port (10).

公开(公告)号：EP2473863B1

公开(公告)日：2015-10-14

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 ,  H02H7/09 ,  G01R31/02 ,  H02P6/12

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

公开(公告)号：EP2800232A1

公开(公告)日：2014-11-05

申请号：EP12863723.8

申请日：2012-12-31

Applicant: Shenzhen BYD Auto R&D Company Limited ,  BYD Company Limited

Inventor： TANG, Zheqing ,  DU, Zhiyong ,  TANG, Fu ,  ZHAO, Jun ,  LIANG, Qiyuan

IPC: H02J7/02 ,  B60L11/18

CPC classification number: B60L11/1851 ,  B60L1/003 ,  B60L1/006 ,  B60L3/003 ,  B60L3/0046 ,  B60L3/0069 ,  B60L11/18 ,  B60L11/1803 ,  B60L11/1805 ,  B60L11/1809 ,  B60L11/1811 ,  B60L11/1812 ,  B60L11/1814 ,  B60L11/1816 ,  B60L11/1818 ,  B60L11/1838 ,  B60L11/1842 ,  B60L11/185 ,  B60L11/1861 ,  B60L11/1872 ,  B60L2210/12 ,  B60L2210/14 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2210/42 ,  B60L2230/12 ,  B60L2240/527 ,  B60L2240/529 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2250/12 ,  B60L2260/22 ,  B60L2260/26 ,  B60L2270/147 ,  B60L2270/20 ,  H02J3/32 ,  H02J5/00 ,  H02J7/0036 ,  H02J7/0054 ,  H02J7/0055 ,  H02J7/0063 ,  H02J7/0065 ,  H02J7/0068 ,  H02J7/007 ,  H02J7/02 ,  H02J7/022 ,  H02J7/345 ,  H02J2007/0067 ,  H04B3/542 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7072 ,  Y02T10/7088 ,  Y02T10/7225 ,  Y02T10/7233 ,  Y02T10/7241 ,  Y02T10/92 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/168 ,  Y02T90/169 ,  Y04S10/126 ,  Y04S30/12 ,  Y04S30/14

Abstract: A charging system for an electric automobile and an electric automobile using the system. The charging system comprises: a power battery (10), a charging/discharging socket (20), a bidirectional DC/Dc module (30), a driving control switch (40), a bidirectional DC/AC module (50), a motor control switch (60), a charging/discharging control module (70), and a controller module (80). The controller module (80) is connected to the driving control switch (40), the motor control switch (60), and the charging/discharging control module (70). The controller module (80) is configured to control the driving control switch (40), the motor control switch (60) and the charging/discharging control module (70) according to a current work mode of the charging system. The charging system can implement high-power alternating current charging by using a civil or industrial alternating current grid, so that a user can efficiently, rapidly, and conveniently perform charging at any time and place, and the range of a work voltage of an applicable battery is wide, thereby saving the space and cost.

Abstract translation: 使用该系统的电动汽车和电动汽车充电系统。 充电系统包括：动力电池（10），充电/放电插座（20），双向DC / Dc模块（30），驱动控制开关（40），双向DC / AC模块（50）， 电动机控制开关（60），充放电控制模块（70）和控制器模块（80）。 控制器模块（80）连接到驱动控制开关（40），马达控制开关（60）和充放电控制模块（70）。 控制器模块（80）被配置为根据充电系统的当前工作模式来控制驱动控制开关（40），电动机控制开关（60）和充放电控制模块（70）。 充电系统可以通过使用民用或工业交流电网来实现高功率交流充电，使得用户可以在任何时间和地点高效地，快速地和方便地进行充电，并且适用的工作电压的范围 电池宽，节省空间和成本。

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.