中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

35 records (took 0.013 seconds)

    IGBT MODULE, ELECTRIC MOTOR CONTROLLER, AND VEHICLE
    22.
    发明公开
    IGBT MODULE, ELECTRIC MOTOR CONTROLLER, AND VEHICLE 审中-公开

    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.

    CONTROL DEVICE AND METHOD FOR DETERMINING THE MOTOR ROTOR POSITION
    25.
    发明公开
    CONTROL DEVICE AND METHOD FOR DETERMINING THE MOTOR ROTOR POSITION 有权
    VERFAHREN ZUR BESTIMMUNG DER ROTORLAGE EINES MOTORS STEUEREINRICHTUNG

    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。

    MOTOR CONTROL SYSTEM AND VEHICLE
    29.
    发明公开
    MOTOR CONTROL SYSTEM AND VEHICLE 审中-公开

    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.

Patent Agency Ranking