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    Synchronous motor drive unit and a driving method thereof
    2.
    发明申请
    Synchronous motor drive unit and a driving method thereof 失效
    同步电机驱动单元及其驱动方法

    公开(公告)号：US20060125439A1

    公开(公告)日：2006-06-15

    申请号：US11294500

    申请日：2005-12-06

    申请人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yukio Kawabata ,  Kiyoshi Sakamoto ,  Takao Yanai ,  Osamu Koizumi

    发明人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yukio Kawabata ,  Kiyoshi Sakamoto ,  Takao Yanai ,  Osamu Koizumi

    IPC分类号： H02P1/46

    CPC分类号： B60K6/26 ,  B60K6/48 ,  B60L11/14 ,  B60L15/025 ,  B60L15/20 ,  B60L2220/14 ,  B60L2220/16 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2240/429 ,  H02P1/46 ,  H02P21/22 ,  Y02T10/6221 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275

    摘要： A rotary sensor that outputs two analog signals, such as one sine wave and one cosine wave and has multiple periods within one period of the electrical angle of a motor is employed. The motor is energized at each position for a specified length of time upon its startup by using multiple electrical angles corresponding to the multiple candidate absolute angles obtained from the rotary sensor signal as the initial position of the motor, and the electrical angle at which the motor acceleration becomes maximum is determined as the absolute angle. While the motor drive is in operation, on the other hand, the phase difference Δθ between the phase of the motor at the counter electromotive voltage and the control phase is directly computed from the parameters of the motor, sensed current, voltage command and angle speed so as to correct the shifted position. A high-efficiency motor drive unit with improved maintainability of rotary sensor and improved accuracy of sensing the magnet pole position of a permanent magnet synchronous motor that accelerates and decelerates very quickly in a wide range of speed is realized.

    摘要翻译： 采用旋转传感器，其输出两个模拟信号，例如一个正弦波和一个余弦波，并且在电动机的电角度的一个周期内具有多个周期。 电动机通过使用与从旋转传感器信号获得的多个候选绝对角度相对应的多个电角度作为电动机的初始位置和电动机的电角度，在每个位置通电一段指定时间长度的电动机 加速度变为最大值被确定为绝对角度。 另一方面，在电动机驱动器运行中，电动机相反相电压与控制相之间的相位差Deltatheta直接根据电动机的参数，感应电流，电压指令和角速度来计算 以便纠正移位的位置。 实现了高效率的电机驱动单元，其具有改进的旋转传感器的可维护性并且提高了感测永磁同步电动机的磁极位置的精度，其在宽的速度范围内非常快速地加速和减速。

    Sensor device with sampling function, and sensor data processing system using same
    3.
    发明授权
    Sensor device with sampling function, and sensor data processing system using same 有权
    具有采样功能的传感器设备，以及使用该传感器的传感器数据处理系统

    公开(公告)号：US09534923B2

    公开(公告)日：2017-01-03

    申请号：US14344617

    申请日：2012-02-24

    申请人： Masaya Yamashita ,  Shiro Kobayashi ,  Osamu Koizumi ,  Yuko Akagi

    发明人： Masaya Yamashita ,  Shiro Kobayashi ,  Osamu Koizumi ,  Yuko Akagi

    IPC分类号： G01C23/00 ,  H03K21/02 ,  H03K21/38 ,  G01C19/00 ,  G01C21/10 ,  G01D21/00

    CPC分类号： G01C23/00 ,  G01C19/00 ,  G01C21/10 ,  G01D21/00 ,  H03K21/023 ,  H03K21/38

    摘要： The sensor device includes a counter for counting the number of count commands used to perform measurements while maintaining among multiple sensor devices the ratio of measurement intervals; a ratio-holding-unit for setting the ratio to a desired ratio and holding respective values of the ratio for each of the multiple sensor devices; a sampling-timing-generating-unit for receiving a count value of the counter and the setting value of the ratio held by the ratio-holding-unit, and for generating a sampling timing signal based on the comparison result between the count value and the setting value; and a sampling-unit for sampling a detection signal detected by the detecting unit, by using the sampling timing signal generated by the sampling-timing-generating-unit.

    摘要翻译： 传感器装置包括用于计数用于执行测量的计数命令的计数器，同时在多个传感器装置之间保持测量间隔的比率; 比例保持单元，用于将所述比率设置为期望比率并保持所述多个传感器装置中的每一个的所述比率的各个值; 采样定时发生单元，用于接收计数器的计数值和由比例保持单元保持的比率的设定值，并且用于基于计数值和计数值之间的比较结果产生采样定时信号 设定值 以及采样单元，用于通过使用由采样定时产生单元产生的采样定时信号对由检测单元检测的检测信号进行采样。

    Production method for rotating electric machine and stator coils, and electric power steering motor
    7.
    发明授权
    Production method for rotating electric machine and stator coils, and electric power steering motor 有权
    旋转电机和定子线圈以及电动助力转向电机的生产方法

    公开(公告)号：US07683516B2

    公开(公告)日：2010-03-23

    申请号：US11441134

    申请日：2006-05-26

    申请人： Takashi Ishigami ,  Masashi Kitamura ,  Osamu Koizumi ,  Mitsuaki Mirumachi

    发明人： Takashi Ishigami ,  Masashi Kitamura ,  Osamu Koizumi ,  Mitsuaki Mirumachi

    IPC分类号： H02K1/00

    CPC分类号： H02K3/522 ,  H02K15/0025 ,  H02K15/095 ,  H02K2201/15

    摘要： A stator of a rotating electric machine includes a stator core, and multiphase stator coils incorporated in the stator core. The stator core is formed by connecting a plurality of split core pieces. Each of the stator coils is wound around a coil bobbin installed on the outer periphery of the tooth portion of a respective one of the core pieces, by a concentrated winding method; and around mutually adjacent tooth portions, the respective coils that have the same phase and mutually different in the winding direction are continuously wound. A crossover wire for connecting the first stator coil wound around the first tooth portion and the second stator coil wound around the second tooth portion, is located at a position further toward the central side in the axial direction of the coil bobbin than the end portion of the coil bobbin, inclusive of this end portion.

    摘要翻译： 旋转电机的定子包括定子铁心和并入定子铁芯中的多相定子线圈。 定子铁芯通过连接多个分裂铁芯片而形成。 每个定子线圈通过集中绕线缠绕在安装在相应一个芯片的齿部的外周上的线圈架上; 并且在彼此相邻的齿部周围，连续卷绕具有相同相位并且在卷绕方向上彼此不同的相应线圈。 用于连接卷绕在第一齿部的第一定子线圈和缠绕在第二齿部上的第二定子线圈的交叉线位于比线圈架的轴向更靠近线圈架轴的中心侧的位置 线圈架，包括该端部。