公开(公告)号：EP4116721A1

公开(公告)日：2023-01-11

申请号：EP20922644.8

申请日：2020-08-24

Applicant: BYD Company Limited

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

IPC: G01R31/34

Abstract: A device and a system for diagnosing a motor parameter are provided. The device includes a master chip, an excitation conditioning circuitry, a motor resolver unit, and a sine and cosine conditioning circuitry. The master chip includes a first analog-to-digital converter, a second analog-to-digital converter, a first processing unit, and a monitoring core.

公开(公告)号：EP4113772A1

公开(公告)日：2023-01-04

申请号：EP21771816.2

申请日：2021-03-17

Applicant: BYD Company Limited

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

IPC: H02H7/08

Abstract: A motor control system and a vehicle. The motor control system (1) includes a main control unit (10), a power supply unit (20), and a driving unit (30). The main control unit (10) is configured to: obtain sampling data of a motor and a power supply signal from the driving unit (30), generate a motor control signal according to the sampling data, and output a safety enable signal when determining that motor drive is abnormal according to the sampling data or when determining that power supply to the driving unit (30) is abnormal according to the power supply signal. The power supply unit (20) is configured to: supply power to the main control unit (10), monitor a state of the main control unit (10), and output a safety cut-off signal when the power supply unit (20) or the main control unit (10) is abnormal. The driving unit (30) is configured to: drive the motor according to the motor control signal, and switch to a safe path when receiving any one of the safety enable signal or the safety cut-off signal.

公开(公告)号：EP2800226B1

公开(公告)日：2018-08-15

申请号：EP12861681.0

申请日：2012-12-31

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

Inventor： YANG, Guangming ,  ZHANG, Xinxin ,  DU, Zhiyong ,  ZHOU, Xuguang ,  LUO, Hongbin

IPC: H02J7/00 ,  H02M7/00 ,  B60L3/00 ,  B60L11/18 ,  B60L1/00 ,  H02J3/32 ,  H02J5/00 ,  H02J7/02 ,  H02J7/34 ,  H04B3/54

CPC classification number: B60L11/1838 ,  B60L1/006 ,  B60L3/003 ,  B60L3/0046 ,  B60L3/0069 ,  B60L11/1812 ,  B60L11/1814 ,  B60L11/1818 ,  B60L11/1842 ,  B60L11/1851 ,  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 ,  H02J7/02 ,  H02J7/022 ,  H02J7/345 ,  H02J2007/0067 ,  H04B3/542 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7088 ,  Y02T10/7225 ,  Y02T10/7233 ,  Y02T10/7241 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S10/126 ,  Y04S30/14

Abstract: Disclosed are a carrier communication method based on electric automobile charging/discharging, comprising the following steps: S1: after being powered up and started, an electric automobile detecting whether a carrier signal from a peripheral device is received through an interface wire harness and whether the carrier signal is correct; S2: when detecting the carrier signal and detecting that the carrier signal is correct, the electric automobile receiving the carrier signal through the interface wire harness; and S3: the electric automobile performing coupling and filtering on the received carrier signal to convert the carrier signal into a standard carrier signal, and demodulating the standard carrier signal into a digital signal to obtain information of the peripheral device. The method, on the basis of not increasing the number of wire harness, may implement data transmission and sharing between an automobile and ECU modules of a peripheral device, and carrier communication with other signal lines as communication media at the same time, so as to avoid construction and investment of a new communication network, and reduce manufacturing cost and maintenance difficulty. Further disclosed are a carrier communication system and a carrier apparatus based on electric automobile charging/discharging.

公开(公告)号：EP2901546A1

公开(公告)日：2015-08-05

申请号：EP13842927.9

申请日：2013-09-23

Applicant: BYD Company Limited

Inventor： LUO, Hui ,  DU, Zhiyong ,  ZHOU, Xuguang ,  ZHANG, Xinxin ,  CHEN, Xing ,  YANG, Taotao ,  CHENG, Lipin

IPC: H02P6/00

CPC classification number: H02P6/12 ,  H02P6/34 ,  H02P29/0241

Abstract: A method for checking an out-of-step of a synchronous motor includes detecting three-phase currents of the synchronous motor; determining whether a relationship between the three-phase currents satisfies a preset requirement; and if no, determining that the synchronous motor is out of step. It is determined that the synchronous motor is out of step when amplitudes of each current of the three-phase currents are not equal or when the phase difference between the three-phase currents is not 120°.

公开(公告)号：EP2802056A1

公开(公告)日：2014-11-12

申请号：EP12862873.2

申请日：2012-12-31

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

Inventor： TANG, Zheqing ,  DU, Zhiyong ,  TANG, Fu

IPC: H02J7/00 ,  H02J7/02

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: An electric automobile charging system (100) and an electric automobile having same. The system comprises: a power battery (10); a first charging interface (INT1) and a second charging interface (INT2) connected to an external power source; a first charging control branch (401) connected between the power battery (10) and the first charging interface (INT1); a second charging control branch (402) connected between the power battery (10) and the second charging interface (INT2); and a controller (80) connected to the first charging interface (INT1) and the second charging interface (INT2). The charging system (100) is capable of performing large-power AC charging on an electric automobile with AC power grids for civil or industrial use, so that a user can charge the electric automobile efficiently and conveniently at any place anytime. Moreover, the charging system is applicable to batteries of a wide working voltage range.

Abstract translation: 电动汽车充电系统（100），并以电动汽车具有相同。 该系统包括：一个动力电池（10）; 一个第一充电接口（INT1）和连接到外部电源的第二充电接口（INT2）; 连接在电源电池（10）和所述第一充电接口（INT1）之间的第一充电控制分支（401）; 地连接电源电池（10）和所述第二充电接口（INT2）之间的第二充电控制分支（402）; 和连接到所述第一充电接口（INT1）和第二充电接口（INT2上）的控制器（80）。 充电系统（100）能够执行大功率交流充电到电动汽车交流电网民用或工业用途一样，用户可以将电动汽车高效，方便地在任何地点任何时间收取。 更上方，充电系统是适用于宽工作电压范围的电池。

公开(公告)号：EP2800226A1

公开(公告)日：2014-11-05

申请号：EP12861681.0

申请日：2012-12-31

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

Inventor： YANG, Guangming ,  ZHANG, Xinxin ,  DU, Zhiyong ,  ZHOU, Xuguang ,  LUO, Hongbin

IPC: H02J7/00 ,  H02M7/00

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: Disclosed are an electric vehicle and a power system and a motor controller for an electric vehicle. The power system for an electric vehicle comprises a power battery (10); a charge-discharge socket (20); a two-way DC/DC module (30); a drive control switch (40); a two-way DC/AC module (50); a motor control switch (60); a charge-discharge control module (70); and a controller module (80). The controller module (80) is connected to the drive control switch (40), the motor control switch (60) and the charge-discharge control module (70), and the controller module (80) is used for controlling the drive control switch (40), the motor control switch (60) and the charge-discharge control module (70) in accordance with the current operating mode of the power system. The power system can achieve high-power AC charging to an electric vehicle using a civil or industrial AC power grid so that users can perform a quick charge at a high efficiency anytime and anywhere. In addition, the applicable battery has a wide range of operating voltages, thereby saving space and costs.

Abstract translation: 公开了一种电动车辆，电力系统和用于电动车辆的电动机控制器。 电动车辆的动力系统包括动力电池（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），电机控制开关（60）和充放电控制模块（70），控制器模块（80）用于控制驱动控制开关 （40），电动机控制开关（60）和充放电控制模块（70）。 电力系统可以使用民用或工业交流电网实现对电动车辆的大功率交流充电，使得用户可以随时随地以高效率执行快速充电。 此外，适用的电池具有宽范围的工作电压，从而节省空间和成本。