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    Ripple count circuit including varying ripple threshold detection
    3.
    发明授权
    Ripple count circuit including varying ripple threshold detection 有权

    公开(公告)号：US11705836B2

    公开(公告)日：2023-07-18

    申请号：US17981768

    申请日：2022-11-07

    申请人： INTEVA PRODUCTS FRANCE SAS

    发明人： François Breynaert ,  Simon Herpin

    IPC分类号： H02P7/00 ,  H02P7/285 ,  H03K23/58

    CPC分类号： H02P7/0094 ,  H02P7/2855 ,  H03K23/58

    摘要： A motor control system includes a variable voltage supply in signal communication with a direct current (DC) motor. The DC motor includes a rotor induced to rotate in response to a drive current generated by a variable supply voltage delivered by the voltage supply. The rotation of the rotor 103 generates a mechanical force that drives a component. A ripple count circuit 104 is configured to filter the drive current based on a rotational speed (ω) of the rotor 103 to generate a filtered drive current signal, and to generate a varying threshold based on the filtered drive current signal. Based on a comparison between the filtered drive current signal and the varying threshold, the ripple count circuit 104 generates a pulsed output signal indicative of the rotational speed (ω) of the rotor and a rotational position (θ) of the rotor.

    VEHICLE MOTOR CONTROL APPARATUS AND METHOD
    4.
    发明申请
    VEHICLE MOTOR CONTROL APPARATUS AND METHOD 审中-公开

    公开(公告)号：US20180287529A1

    公开(公告)日：2018-10-04

    申请号：US15695912

    申请日：2017-09-05

    申请人： Hyundai Motor Company ,  Kia Motors Corporation

    发明人： Jeong Gi YUN

    IPC分类号： H02P7/00 ,  H02P1/18 ,  B60N2/02

    CPC分类号： H02P7/0094 ,  B60N2/0232 ,  B60N2002/0272 ,  H02P1/18 ,  H02P2203/03

    摘要： A vehicle motor control apparatus may include a motor device, a detecting device configured to detect a ripple voltage of the motor device and a controller configured to control driving of the motor device according to the ripple voltage detected by the detecting device, wherein the controller is configured to analyze the detected ripple voltage, measures a time required for a value of the ripple voltage to be maintained within a reference range for a predetermined time after reaching the reference range, and determines a compensation value according to the measured time, when the motor device stops. The controller applies the determined compensation value to control driving of the motor device, when the motor device is driven again.

    Method and apparatus for determining a rotor position and rotation speed of an electrical machine
    5.
    发明授权
    Method and apparatus for determining a rotor position and rotation speed of an electrical machine 有权

    公开(公告)号：US09667127B2

    公开(公告)日：2017-05-30

    申请号：US14759613

    申请日：2014-01-02

    申请人： Robert Bosch GmbH

    发明人： Gerald Roos

    IPC分类号： H02K23/04 ,  H02P7/00 ,  H02K23/40 ,  H02K23/66

    CPC分类号： H02K23/04 ,  H02K23/40 ,  H02K23/66 ,  H02P7/0094

    摘要： The invention relates to a brush-commutated electrical machine. The machine includes a rotor with rotor coils which are arranged on rotor poles. The machine also includes a commutator with commutator laminations which are electrically connected to the rotor coils, and having two brushes which are arranged offset in relation to one another, with the result that the brushes alternately commutate when the rotor moves. The machine also includes a stator having stator poles which are arranged in the circumferential direction and at least some of which are provided with stator magnets, wherein the stator poles are designed and/or arranged such that an alternating stator magnetic field which is generated by said stator poles in the circumferential direction is formed differently depending on the pole direction of the respective stator pole.

    MOTOR CONTROL DEVICE AND CORRECTION DATA GENERATION METHOD IN SAME
    6.
    发明申请
    MOTOR CONTROL DEVICE AND CORRECTION DATA GENERATION METHOD IN SAME 有权
    电机控制装置及其校正数据生成方法

    公开(公告)号：US20150212511A1

    公开(公告)日：2015-07-30

    申请号：US14602488

    申请日：2015-01-22

    申请人： YAMAHA HATSUDOKI KABUSHIKI KAISHA

    发明人： Atsuo FURUTANI

    IPC分类号： G05B19/404

    CPC分类号： G05B19/404 ,  H02P6/007 ,  H02P6/16 ,  H02P7/0094

    摘要： In-forward-rotation command information is obtained by sampling command signals during one or more rotations of a rotary shaft in a constant speed region while a motor is driven in a forward drive pattern including the constant speed region where the rotary shaft rotates in a forward direction at a constant speed. In-reverse-rotation command information is obtained by sampling the command signals during one or more rotations of the rotary shaft in a constant speed region while the motor is driven in a return drive pattern including the constant speed region where the rotary shaft rotates in a reverse direction at the constant speed. Correction data is generated using the in-forward-rotation command information and the in-reverse-rotation command information.

    摘要翻译： 前进旋转指令信息是通过在恒定速度区域的旋转轴的一次或多次旋转期间对指令信号进行采样而得到的，而马达以包括旋转轴向前旋转的恒定速度区域的前进驱动模式驱动 方向恒速。 反转指令信息是通过在旋转轴在恒定速度区域的一次或多次旋转期间对指令信号进行采样而得到的，同时电动机以包括旋转轴在其中旋转的恒定速度区域的返回驱动模式被驱动 以恒定速度反向。 使用向前转动指令信息和反转指令信息生成校正数据。

    Correction of counting errors in the evaluation of current ripples in a DC motor
    9.
    发明授权
    Correction of counting errors in the evaluation of current ripples in a DC motor 有权
    校正直流电机中电流波纹的计数误差

    公开(公告)号：US08310185B2

    公开(公告)日：2012-11-13

    申请号：US13235335

    申请日：2011-09-16

    申请人： Jovan Knezevic ,  Wolfgang Uebel

    发明人： Jovan Knezevic ,  Wolfgang Uebel

    IPC分类号： H02P6/16

    CPC分类号： H02P7/00 ,  H02K23/30 ,  H02K23/66 ,  H02P7/0094 ,  H02P7/03

    摘要： A method for detecting a regulating variable of a mechanically commutated DC motor in a positioning device for a motor vehicle is provided. The DC motor has a standard ripple pattern, which contains per engine cycle or semi-cycle at least one index ripple, which is classified with regard to amplitude, duration and/or time position. The counter-electromotoric power is calculated from a measured motor current and the measured motor voltage by a motor model. An alternating element corresponding to the current ripples is extracted from the counter-electromotoric power, which in turn is used to determine the current ripples. Further, in at least one engine cycle or engine semi-cycle the index ripple is identified and the total identified current ripples are counted. The result of the count is hereby corrected when the index ripple is not counted at the expected position.

    摘要翻译： 提供一种用于检测机动车辆的定位装置中的机械换向直流电动机的调节变量的方法。 直流电动机具有标准波纹图案，其包含每个发动机循环或半循环至少一个指数波动，其根据幅度，持续时间和/或时间位置被分类。 电动机的功率由电机的电动机电流和电动机的电机电压来计算。 从反电动势中提取对应于电流纹波的交替元件，反电动势又用于确定电流纹波。 此外，在至少一个发动机循环或发动机半循环中，识别出指标波动，并且对所识别的总体波纹进行计数。 当指数波动不计入预期位置时，计数结果将被修正。

    Ripple detecting device
    10.
    发明授权
    Ripple detecting device 有权
    波纹检测装置

    公开(公告)号：US07696708B2

    公开(公告)日：2010-04-13

    申请号：US11751842

    申请日：2007-05-22

    申请人： Muneaki Kurimoto ,  Hitoshi Ishikawa ,  Eiichiro Shigehara

    发明人： Muneaki Kurimoto ,  Hitoshi Ishikawa ,  Eiichiro Shigehara

    IPC分类号： H02P6/10

    CPC分类号： H02P7/0094 ,  G01R31/343

    摘要： A ripple detecting device for detecting a ripple from an armature current outputted from a motor by overlapping a low band noise having a frequency of one/n (wherein “n” is a natural number more than 1) includes an initial ripple detecting device for detecting a cycle of the ripple in advance, a feature detecting device for detecting a feature of the ripple from the armature current outputted from the motor. The ripple detecting device further includes a ripple detecting control device for detecting the ripple by comparing the feature of the ripple with the low band noise having the frequency of one/n detected by the feature detecting device at a time before the present time with the feature of the ripple detected by the feature detecting device at the present time and judging that a ripple is generated when the features of the time before the present time and the present time present are resembled.

    摘要翻译： 一种纹波检测装置，用于通过重叠频率为1 / n（其中“n”是大于1的自然数）的低频带噪声，检测从电动机输出的电枢电流的纹波，包括初步纹波检测装置，用于检测 预先提供纹波的周期，用于从电动机输出的电枢电流检测纹波特征的特征检测装置。 波纹检测装置还包括纹波检测控制装置，用于通过将纹波特征与在特征检测装置之前检测到的具有1 / n的频率的低频带噪声与特征相比较来检测纹波， 当前时间和当前时刻之间的时间特征相似时，判定产生纹波。