公开(公告)号：EP2091773B1

公开(公告)日：2017-02-22

申请号：EP07817365.5

申请日：2007-12-11

Applicant: Byd Company Limited

Inventor： XU, Yingwu ,  ZHOU, Xuguang ,  TANG, Xiaohua ,  GONG, Jian ,  LIU, Nan ,  YANG, Guangming ,  YU, Ming

IPC: B60W10/00 ,  B60L15/20

CPC classification number: B60L15/20 ,  B60L2240/12 ,  B60L2240/16 ,  B60L2240/423 ,  B60L2250/28 ,  B60L2270/145 ,  Y02T10/645 ,  Y02T10/7275 ,  Y10S903/914 ,  Y10T477/23 ,  Y10T477/30 ,  Y10T477/635 ,  Y10T477/679

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：EP2063339B1

公开(公告)日：2011-04-06

申请号：EP06817796.3

申请日：2006-10-31

Applicant: Byd Company Limited

Inventor： TANG, Xiaohua ,  ZHOU, Xuguang ,  LUO, Hongbin ,  YU, Ming ,  LIU, Nan ,  GONG, Jian ,  YANG, Guangming

IPC: G05D13/66 ,  H02P3/18 ,  H02P23/14 ,  H02P27/08 ,  G01D5/244 ,  G01P3/481 ,  G01P3/489 ,  G05B13/04 ,  G05B19/02 ,  G05B23/02

CPC classification number: H02P29/0016 ,  G01D21/00 ,  G01P3/48 ,  H02P21/22

Abstract: A control method of electromotor comprises the following steps: setting an alternating axis target current according to the rotor angle velocity of the motor and setting a direct axis target current according to the torque of the motor; detecting and collecting the three-phase currents of the electromotor, simultaneously detecting the degree of the electromotor rotor position; converting the three-phase currents of the electromotor to an alternating axis actual current and a direct axis actual current by Park conversion and Clark conversion according to the degree of the rotor position; setting the difference between the target current and the actual current as the input of the current loop, outputting the required direct axis current and the required alternating axis current by PI regulation; calculating the three-phase voltage according to the required direct axis current and the required alternating axis current output by PI regulation and the degree of the electromotor rotor position; obtaining PWM control waveform through three-phase voltage, the said PWM control waveform controlling the conversion from the direct current to the alternating current, the converted alternating current driving the electromotor.

公开(公告)号：EP2099641A1

公开(公告)日：2009-09-16

申请号：EP07846160.5

申请日：2007-12-26

Applicant: Byd Company Limited

Inventor： TANG, Xiaohua ,  ZHOU, Xuguang ,  XU, Yingwu ,  GONG, Jian ,  LIU, Nan ,  YANG, Guangming

IPC: B60L15/20 ,  B60L3/08

CPC classification number: B60L15/2009 ,  B60L7/18 ,  B60L15/2018 ,  B60L2240/12 ,  B60L2240/423 ,  B60L2240/642 ,  B60L2250/26 ,  Y02T10/645 ,  Y02T10/7275 ,  Y02T10/7291 ,  Y02T90/16 ,  Y10T477/79

Abstract: A method and an apparatus for controlling output torque of a motor for an electric vehicle in downhill mode. the method comprises following steps: detecting a tilt angle value ϑ, a current vehicle speed value V and an accelerator-pedal travel value Gain of the vehicle, determining whether the vehicle is in downhill mode or not, and if the result is positive, then calculating a downhill slip torque T1 of the vehicle under the tilt angle value ϑ, obtaining a maximum output torque T2, calculating an output torque T of the motor based on T1, T2, Gain and a given vehicle speed delimitative value Vref, and controlling the motor to output the calculated output torque T. The present invention ensures the vehicle speed not too high by controlling the output torque of an electric vehicle in downhill mode, even if the brake-pedal travel is zero.

公开(公告)号：EP4300570A1

公开(公告)日：2024-01-03

申请号：EP22794306.5

申请日：2022-02-23

Applicant: BYD Company Limited

Inventor： YANG, Guangming ,  QI, Axi ,  ZHANG, Xingchun ,  YU, Yilong ,  YU, Fengchuan

IPC: H01L23/367

Abstract: The embodiments of the present disclosure provide an IGBT module, a motor controller, and a vehicle. The IGBT module includes a wafer, a first heat dissipation plate, and a second heat dissipation plate, the first heat dissipation plate and the second heat dissipation plate being arranged on two sides of the wafer in a thickness direction respectively, multiple first heat dissipation pins being arranged at intervals on a side of the first heat dissipation plate facing away from the second heat dissipation plate, and multiple second heat dissipation pins being arranged at intervals on a side of the second heat dissipation plate facing away from the first heat dissipation plate; and an insulating waterproof housing, the insulating waterproof housing covering a portion of the wafer exposed from the first heat dissipation plate and the second heat dissipation plate.

公开(公告)号：EP3014730B1

公开(公告)日：2019-06-12

申请号：EP14817131.7

申请日：2014-06-30

Applicant: BYD Company Limited

Inventor： YANG, Guangming ,  HU, Min

IPC: H02J7/02 ,  H02J3/32 ,  B60L11/18 ,  H02M7/487

公开(公告)号：EP3014730A1

公开(公告)日：2016-05-04

申请号：EP14817131.7

申请日：2014-06-30

Applicant: BYD Company Limited

Inventor： YANG, Guangming ,  HU, Min

IPC: H02J7/00 ,  B60L11/18

CPC classification number: B60L11/1838 ,  B60L1/003 ,  B60L1/02 ,  B60L1/14 ,  B60L11/1803 ,  B60L11/1811 ,  B60L11/1814 ,  B60L11/1816 ,  B60L11/1818 ,  B60L11/1846 ,  B60L11/1861 ,  B60L15/007 ,  B60L15/025 ,  B60L2220/54 ,  B60L2220/56 ,  B60L2240/34 ,  B60L2250/16 ,  H02J7/00 ,  H02J7/022 ,  H02J2007/0096 ,  Y02T10/641 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S30/14

Abstract: A charging system for an electric vehicle and a method for controlling charging of an electric vehicle are provided. The charging system comprises: a power battery (10); a charge-discharge socket (20); an external power supply device (1002); a charging connection device (1001); and an energy control device (1003), comprising: a three-level bidirectional DC-AC module (30); a charge-discharge control module (50); and a control module (60) configured to control the charge-discharge control module (50) according to a current working mode of the electric vehicle. The energy control device (1003) and the external power supply device (1002) communicate by transmitting a modulated PWM signal to each other via the charging connection device (1001), and the control module (60) controls the three-level bidirectional DC-AC module (30) and the charge-discharge control module (50) to charge the power battery (10) by the external power supply device (1002).

公开(公告)号：EP2128975A1

公开(公告)日：2009-12-02

申请号：EP07846028.4

申请日：2007-12-05

Applicant: Byd Company Limited

Inventor： TANG, Xiaohua ,  YU, Ming ,  ZHOU, Xuguang ,  GONG, Jian ,  LIU, Nan ,  YANG, Guangming ,  XU, Yingwu ,  LUO, Ting ,  LIU, Kai ,  JIANG, Xianhong ,  WU, Qiaoqiao

IPC: H02P6/16

CPC classification number: H02P29/032 ,  H02P2203/05

Abstract: This invention involves in electric motor field, providing a method and an apparatus for electric vehicle motor control and rotor position detection and fault-tolerance processing. The method comprises the following steps: detecting a current correct rotor position angle during a current sampling cycle; comparing said current correct rotor position angle with a calculated previous sampled rotor position angle and getting the difference between the current correct rotor position angle and the calculated previous sampled rotor position angle; determining whether the difference exceed a specified rotor angle limit maximum or not; if it exceeds, discarding the current correct rotor position angle, and computing the sum between the calculated previous sampled rotor position angle and the specified rotor angle limit maximum, and using the sum as a correcting value to control the motor motion. Thus, the invention resolves the problem in the prior art, that when an error rotor position appears, and the motor is continually controlled, this can lead to an overly large electric current resulting in damage to power components.

Abstract translation: 本发明涉及电动机领域，提供用于电动车辆电动机控制和转子位置检测和容错处理的方法和装置。 该方法包括以下步骤：在当前采样周期内检测当前正确的转子位置角; 将所述当前正确的转子位置角与计算的先前采样的转子位置角进行比较，并获得当前正确的转子位置角与计算的先前采样的转子位置角之间的差; 确定差异是否超过规定的转子角度极限最大值; 如果超过，则丢弃当前正确的转子位置角，并且计算所计算的先前采样的转子位置角与指定的转子角极限最大值之间的和，并使用该和作为校正值来控制电动机运动。 因此，本发明解决了现有技术中的问题，当出现错误转子位置并且马达被连续控制时，这可能导致过大的电流导致功率部件的损坏。

公开(公告)号：EP2097290A1

公开(公告)日：2009-09-09

申请号：EP07846146.4

申请日：2007-12-25

Applicant: Byd Company Limited

Inventor： TANG, Xiaohua ,  YU, Ming ,  ZHOU, Xuguang ,  GONG, Jian ,  LIU, Nan ,  YANG, Guangming

IPC: B60L15/20 ,  B60L3/10 ,  B60L9/18

CPC classification number: B60L15/10 ,  B60L3/106 ,  B60L15/025 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2250/26 ,  B60L2270/145 ,  B60T8/1764 ,  B60T2210/124 ,  Y02T10/643 ,  Y02T10/7258

Abstract: A method and apparatus for controlling a motor of an electric vehicle. A current acceleration a of the motor is calculated in real time according to detected rotor position values. If the current acceleration a is greater than a predetermined forward acceleration a0, then the motor output torque is decreased. If the acceleration a is less than a predetermined backward acceleration a1, then the motor output torque is increased. Thus, when the vehicle travels from a normal road surface to a slippy road surface or on the contrary, decreasing or increasing the motor output torque may suppress an abrupt variation of vehicle speed. According to a preferred embodiment, reducing output torque during early period may suppress current abrupt variation, protect the power device, and avoid the vehicle being out-of-control caused by a rotor blocking or a motor skidding.

公开(公告)号：EP2097288A1

公开(公告)日：2009-09-09

申请号：EP07846122.5

申请日：2007-12-21

Applicant: Byd Company Limited

Inventor： TANG, Xiaohua ,  YU, Ming ,  ZHOU, Xuguang ,  GONG, Jian ,  LIU, Nan ,  YANG, Guangming

IPC: B60L7/10 ,  B60T8/17 ,  B60K6/48 ,  B60W10/18

CPC classification number: B60L7/18 ,  B60L7/14 ,  B60L11/1803 ,  B60L15/2009 ,  B60L2240/12 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2250/26 ,  B60W10/08 ,  B60W10/18 ,  B60W2540/12 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7275

Abstract: An apparatus and method for controlling energy feedback for electric vehicles includes acquiring an accelerator-pedal travel value, a brake-pedal travel value and a current vehicle speed value, and determining whether the brake-pedal travel value is equal to 0%. Feedback torque based on the current vehicle speed value and the brake-pedal travel value with various conditions is then calculated. Mechanical energy generated by the feedback torque T is converted into electric energy and transmitted to battery of the electric vehicle for storing. Accordingly, the endurance mileage of electric vehicle may be effectively prolonged and the utilization efficiency of battery is improved.