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    • 26. 发明公开
    • ELECTRIC POWER STEERING DEVICE
    • EP3460986A1
    • 2019-03-27
    • EP17830992.8
    • 2017-07-18
    • NSK Ltd.
    • MINAKI RyoTAKASE HiroakiSAWADA HidekiSUGAWARA Takayoshi
    • H02P21/05B62D5/04B62D6/00H02M7/48H02P6/10H02P21/13
    • [Problem]
      An object of the present invention is to provide an electric power steering apparatus of a vector control system that compensates a dead time of an inverter, a motor back-EMF and an interference voltage due to a mutual inductance between motor windings, improves a distortion of a current waveform and a responsibility of a current control, and suppresses a noise, vibration and a ripple.
      [Means for solving the problem]
      The present invention is the electric power steering apparatus that driving-controls a 3-phase brushless motor which applies an assist torque to a steering mechanism of a vehicle by using a current command value calculated based on at least a steering torque, and vector-controls the 3-phase brushless motor, via an inverter, by converting dq-axes command values converted from the current command value into 3-phase values, comprising a dq-axes disturbance observer to compensate respective axes disturbance voltages, which include a dead time of the inverter, for the dq-axes command values, or comprising: a dq-axes disturbance observer to compensate respective axes disturbance voltages, which include a dead time of the inverter, for the dq-axes command values and a spatial vector modulating section.
    • 27. 发明公开
    • SENSORLESS CONTROL SYSTEM FOR PERMANENT MAGNET SYNCHRONOUS MACHINE
    • 永磁同步电机无传感器控制系统
    • EP3316476A1
    • 2018-05-02
    • EP17159596.0
    • 2017-03-07
    • LSIS Co., Ltd.
    • LEE, Hak-Jun
    • H02P21/13H02P23/12H02P6/182H02P6/18H02P25/026
    • H02P6/182H02P6/17H02P6/181H02P21/13H02P23/12H02P25/026
    • Disclosed is a sensorless control system for a permanent magnet synchronous machine. The sensorless control system includes a counter electromotive force estimation unit (6) configured to estimate a counter electromotive force using a phase voltage reference applied to an inverter (8) and a phase current applied from the inverter to the permanent magnet synchronous machine (9), and a speed estimation unit (5) configured to estimate an angular velocity and an electrical angle of a rotor of the permanent magnet synchronous machine, and the counter electromotive force estimation unit according to one embodiment of the present disclosure may maintain robust performance at a low speed by modifying some portion of a conventional Luenberger observer.
    • 公开了一种用于永磁同步电机的无传感器控制系统。 该无传感器控制系统包括反电动势推定部(6),该反电动势推定部(6)使用施加于逆变器(8)的相电压基准和逆变器对永磁同步电机(9)施加的相电流来推定反电动势, ,以及被配置为估计永磁同步电机的转子的角速度和电角度的速度估计单元(5),并且根据本公开的一个实施例的反电动势估计单元可以保持在 通过修改传统的Luenberger观察者的一部分来降低速度。
    • 28. 发明公开
    • COMMANDE D'UNE MACHINE ÉLECTRIQUE SYNCHRONE À ROTOR BOBINÉ
    • 同步旋转电机的控制
    • EP3314742A1
    • 2018-05-02
    • EP16741074.5
    • 2016-06-13
    • Renault S.A.S.
    • KOTEICH, MohamadMALOUM, Abdelmalek
    • H02P21/13H02P21/14
    • The invention relates to a control device (4) of a synchronous three-phase electric machine (2) with a wound rotor for an electric motor vehicle or hybrid electric vehicle, which includes a module (6) for receiving voltages (v
      a , v
      b , v
      c , v
      f ) at the terminals of the phases of the stator and/or of the winding of the rotor, a module (8) for measuring the current (if) passing through the winding of the rotor, a module (10) for recovering the speed of rotation (ω) of the rotor relative to the stator and an estimator of the behaviour of the operating parameters of the synchronous electric machine (16) with a wound rotor. Moreover, the estimator is combined with the use of a state observer and the control device (4) includes means (14) for collecting reference values of the currents (i
      dref , i
      qref ) passing through the phases of the stator in a two-phase reference frame linked to the rotor (d, q), said estimator (16) being capable of estimating the currents passing through the phases of the stator (i
      d , i
      q ) in the two-phase reference frame linked to the rotor (d, q) in accordance with the magnitudes (v
      a , v
      b , v
      c , v
      f , i
      f , ω) measured by the receiving, measurement and recovery modules (6, 8, 10) and reference values (i
      dref , i
      qref ) of the currents passing through the phases of the stator in a two-phase reference frame linked to the rotor.