公开(公告)号：US12292476B2

公开(公告)日：2025-05-06

申请号：US17909273

申请日：2020-08-24

Applicant: BYD COMPANY LIMITED

Inventor： Yilong Yu ,  Luhui Xu ,  Zhiyong Du ,  Axi Qi ,  Guangming Yang

IPC: G01R31/34 ,  G01D5/20

Abstract: A device and a system for diagnosing a motor parameter are provided. The device includes a master chip, an excitation conditioning circuit, a motor resolver unit, and a sine and cosine conditioning circuit. 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：US20140368170A1

公开(公告)日：2014-12-18

申请号：US14370043

申请日：2012-12-31

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： Zheqing Tang ,  Zhiyong Du ,  Fu Tang ,  Jun Zhao ,  Qiyuan Liang

IPC: 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 vehicle and an electric vehicle are provided. The charging system comprises: a power battery; a charge-discharge socket; a bidirectional DC/DC module having a first DC terminal connected with a first terminal of the power battery and a second DC terminal connected with a second terminal of the power battery; a bidirectional DC/AC module having a first DC terminal connected with the second terminal of the power battery and a second DC terminal connected with the first terminal of the power battery; a charge-discharge control module having a first terminal connected with the AC terminal of the bidirectional DC/AC module and a second terminal connected with the charge-discharge socket; and a controller module connected with the charge-discharge control module, and configured to control the charge-discharge control module according to a current operation mode of the charging system.

Abstract translation: 提供一种用于电动车辆和电动车辆的充电系统。 充电系统包括：动力电池; 充放电插座; 具有与所述动力电池的第一端子连接的第一直流端子和与所述动力电池的第二端子连接的第二DC端子的双向DC / DC模块; 具有与动力电池的第二端子连接的第一直流端子的双向DC / AC模块和与动力电池的第一端子连接的第二DC端子; 充放电控制模块，具有与双向DC / AC模块的AC端子连接的第一端子和与充放电插座连接的第二端子; 以及与所述充放电控制模块连接的控制器模块，并且被配置为根据所述充电系统的当前操作模式来控制所述充放电控制模块。

公开(公告)号：US20150042277A1

公开(公告)日：2015-02-12

申请号：US14369946

申请日：2012-12-31

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

Inventor： Zheqing Tang ,  Zhiyong Du ,  Fu Tang

IPC: B60L11/18 ,  H02J7/00

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: A charging system for an electric vehicle and an electric vehicle including the same are provided. The charging system includes: a power battery; a first charging interface and a second charging interface connected with an external power source respectively; a first charging control branch connected between the power battery and the first charging interface, and a second charging control branch connected between the power battery and the second charging interface; and a controller connected with the first charging interface and the second charging interface respectively.

Abstract translation: 提供了一种用于电动车辆的充电系统和包括该充电系统的电动车辆。 充电系统包括：动力电池; 分别与外部电源连接的第一充电接口和第二充电接口; 连接在动力电池和第一充电接口之间的第一充电控制分支以及连接在动力电池和第二充电接口之间的第二充电控制分支; 以及分别与第一充电接口和第二充电接口连接的控制器。

公开(公告)号：US20150035459A1

公开(公告)日：2015-02-05

申请号：US14369934

申请日：2012-12-31

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

Inventor： Guangming Yang ,  Xinxin Zhang ,  Zhiyong Du ,  Xuguang Zhou ,  Hongbin Luo

IPC: 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: An electric vehicle and a power system and a motor controller for an electric vehicle are provided. The power system includes a power battery; a charging-discharging socket; a bidirectional DC/DC module connected with the power battery; a driving control switch connected with the power battery and the bidirectional DC/DC module; a bidirectional DC/AC module connected with the driving control switch and the power battery; a motor control switch connected with the bidirectional DC/AC module and a motor; a charging-discharging control module connected with the bidirectional DC/AC module and the charging-discharging socket; and a controller module connected with and configured to control the driving control switch, the motor control switch and the charging-discharging control module according to a current operation mode of the power system.

Abstract translation: 提供电动汽车和动力系统以及用于电动车辆的电动机控制器。 电力系统包括动力电池; 充电放电插座; 与动力电池连接的双向DC / DC模块; 与动力电池和双向DC / DC模块连接的驱动控制开关; 与驱动控制开关和动力电池连接的双向DC / AC模块; 与双向DC / AC模块连接的电动机控制开关和电动机; 与双向DC / AC模块和充电放电插座连接的充电放电控制模块; 以及控制器模块，其连接并且被配置为根据电力系统的当前操作模式来控制驱动控制开关，电动机控制开关和充放电控制模块。

公开(公告)号：US09887647B2

公开(公告)日：2018-02-06

申请号：US14039984

申请日：2013-09-27

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： Hui Luo ,  Zhiyong Du ,  Xuguang Zhou ,  Xinxin Zhang ,  Xing Chen ,  Taotao Yang ,  Lipin Cheng

IPC: H02H7/08 ,  H02P21/00 ,  H02P6/00 ,  H02P6/12 ,  H02P6/34 ,  H02P29/024

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：US09887646B2

公开(公告)日：2018-02-06

申请号：US14039852

申请日：2013-09-27

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： Hui Luo ,  Zhiyong Du ,  Xuguang Zhou ,  Xinxin Zhang ,  Xing Chen ,  Kai Xiao ,  Lipin Cheng

IPC: H02H7/08 ,  H02P21/00 ,  H02P6/00 ,  H02P6/12 ,  H02P6/182 ,  H02P6/34

CPC classification number: H02P6/12 ,  H02P6/182 ,  H02P6/34

Abstract: A method for checking an out-of-step of a synchronous motor includes detecting electric degrees of the synchronous motor, in which the electric degrees comprise at least a first electric degree and a second electric degree detected at a preset interval, and the second electric degree is detected after the first electric degree; comparing the first electric degree with the second electric degree to obtain a comparing result; and determining that the synchronous motor is out of step when the comparing result satisfies a preset requirement. It is determined that the synchronous motor is out of step when the electric degree keeps unchanged or decreases progressively, or an increment of the electric degree is very small.

公开(公告)号：US09260022B2

公开(公告)日：2016-02-16

申请号：US14369934

申请日：2012-12-31

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

Inventor： Guangming Yang ,  Xinxin Zhang ,  Zhiyong Du ,  Xuguang Zhou ,  Hongbin Luo

IPC: H02P27/04 ,  B60L11/18 ,  H02J7/00 ,  H02J7/02 ,  H04B3/54 ,  B60L3/00 ,  B60L1/00 ,  H02J3/32

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 vehicle and a power system and a motor controller for an electric vehicle are provided. The power system includes a power battery; a charging-discharging socket; a bidirectional DC/DC module connected with the power battery; a driving control switch connected with the power battery and the bidirectional DC/DC module; a bidirectional DC/AC module connected with the driving control switch and the power battery; a motor control switch connected with the bidirectional DC/AC module and a motor; a charging-discharging control module connected with the bidirectional DC/AC module and the charging-discharging socket; and a controller module connected with and configured to control the driving control switch, the motor control switch and the charging-discharging control module according to a current operation mode of the power system.

Abstract translation: 提供电动汽车和动力系统以及用于电动车辆的电动机控制器。 电力系统包括动力电池; 充电放电插座; 与动力电池连接的双向DC / DC模块; 与动力电池和双向DC / DC模块连接的驱动控制开关; 与驱动控制开关和动力电池连接的双向DC / AC模块; 与双向DC / AC模块连接的电动机控制开关和电动机; 与双向DC / AC模块和充电放电插座连接的充电放电控制模块; 以及控制器模块，其连接并且被配置为根据电力系统的当前操作模式来控制驱动控制开关，电动机控制开关和充放电控制模块。

公开(公告)号：US12107411B2

公开(公告)日：2024-10-01

申请号：US17943878

申请日：2022-09-13

Applicant: BYD COMPANY LIMITED

Inventor： Luhui Xu ,  Yilong Yu ,  Zhiyong Du ,  Axi Qi ,  Guangming Yang

IPC: H02H7/08 ,  B60L3/00 ,  H02P6/08 ,  H02P6/24

CPC classification number: H02H7/0822 ,  B60L3/0061 ,  H02H7/0833 ,  H02P6/08 ,  H02P6/24

Abstract: A motor control system includes a main control unit, a power supply unit, and a driving unit. The main control unit obtains sampling data of a motor and a power supply signal from the driving unit, generates a motor control signal according to the sampling data, and outputs 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 is abnormal according to the power supply signal. The power supply unit supplies power to the main control unit, monitors a state of the main control unit, and outputs a safety cut-off signal when the power supply unit or the main control unit is abnormal. The driving unit drives the motor according to the motor control signal, and switches to a safe path when receiving any one of the safety enable or safety cut-off signal.

公开(公告)号：US11811350B2

公开(公告)日：2023-11-07

申请号：US17787731

申请日：2020-11-25

Applicant: BYD COMPANY LIMITED

Inventor： Zhiyong Du ,  Luhui Xu ,  Yilong Yu ,  Axi Qi

IPC: H02P3/06 ,  H02P23/14

CPC classification number: H02P3/06 ,  H02P23/14

Abstract: A motor control 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.

公开(公告)号：US09862287B2

公开(公告)日：2018-01-09

申请号：US14901516

申请日：2014-06-30

Applicant: BYD COMPANY LIMITED

Inventor： Xiaohua Tang ,  Guangming Yang ,  Xinxin Zhang ,  Zhiyong Du ,  Min Hu ,  Yilong Yu ,  Jian Liu ,  Zheqing Tang ,  Fu Tang

IPC: B60L11/18 ,  H02J3/32 ,  H02J7/02 ,  B60L1/00 ,  B60L15/00 ,  B60L15/02 ,  H02M7/487 ,  H04L12/10

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.