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154 条记录 (耗时 0.04 秒)

    Coil structure for electric motor
    23.
    发明授权
    Coil structure for electric motor 失效
    电动机线圈结构

    公开(公告)号：US5623178A

    公开(公告)日：1997-04-22

    申请号：US266869

    申请日：1994-07-05

    申请人： Yasutomo Kawabata ,  Eiji Yamada ,  Tetsuya Miura

    发明人： Yasutomo Kawabata ,  Eiji Yamada ,  Tetsuya Miura

    IPC分类号： H02K3/18 ,  H02K3/12 ,  H02K3/38 ,  H02K3/50 ,  H02K3/52 ,  H02K3/28 ,  H02K3/46

    CPC分类号： H02K3/505 ,  H02K3/12 ,  H02K2203/09

    摘要： Molded coil pieces inserted into a slot are separately connected to molded coil pieces belonging to another slot of the same phase as the former coil pieces by a connecting member. The connecting member has conductive members laminated in a direction perpendicular to a rotating shaft of the rotor in the motor via insulating layers, and the molded coil pieces are separately connected to each other by these conductive members, whereby the protrusion of a coil end from each slot can be reduced, which permits the miniaturization and the weight reduction of the motor. Furthermore, the dimensional accuracy of the connecting members can be improved by a simple constitution and manufacturing process, whereby the characteristics of the electric motor can be remarkably improved.

    摘要翻译： 插入槽中的成型线圈片通过连接部件分别连接到属于与前者的线圈片相同的另一槽的模制线圈片。 连接构件具有通过绝缘层在电动机中沿垂直于转子的旋转轴的方向层叠的导电构件，并且通过这些导电构件将模制的线圈片彼此分开连接，由此线圈端从每个 槽可以减小，这允许电动机的小型化和重量减轻。 此外，通过简单的结构和制造工艺可以提高连接构件的尺寸精度，从而可以显着提高电动机的特性。

    Motor controller and method of controlling motor
    24.
    发明授权
    Motor controller and method of controlling motor 有权
    电机控制器及电机控制方法

    公开(公告)号：US6037741A

    公开(公告)日：2000-03-14

    申请号：US302377

    申请日：1999-04-30

    申请人： Eiji Yamada ,  Yasutomo Kawabata

    发明人： Eiji Yamada ,  Yasutomo Kawabata

    IPC分类号： H02P6/06 ,  H02P6/16 ,  H02P6/18 ,  H02P6/08

    CPC分类号： H02P6/185

    摘要： When there is a change in required torque, the prior art technique may cause the undesirably low accuracy in the sensor-free determination of the electrical angle. A motor controller of the present invention has the following configuration to control the operation of a synchronous motor, in which multi-phase alternating currents flow through coils to rotate a rotor. The motor controller includes an electrical angle determination unit, which applies a voltage for determination to the coils and determines the electrical angle of the rotor in a sensor-free manner, based on the electric currents flowing in response to the applied voltage for determination. The motor controller also has a torque control unit that applies a voltage for torque output to the coils, corresponding to the required torque. An adjustment unit included in the motor controller adjusts the execution timings of the electrical angle determination unit and the torque control unit, so as to prevent the variation in electric current by the torque control unit from affecting the execution of the electrical angle determination unit. One possible procedure schedules the execution timings of the electrical angle determination unit and the torque control unit. Another possible procedure causes the execution of the electrical angle determination unit to wait according to a variation in required torque. This arrangement enables the electrical angle to be determined with a high accuracy even in the case of a torque variation.

    摘要翻译： 当所需扭矩发生变化时，现有技术的技术可能导致无电传感器确定电角度的不精确的低精度。 本发明的电动机控制器具有以下结构来控制同步电动机的操作，其中多相交流电流流过线圈以使转子旋转。 电动机控制器包括电角度确定单元，该电角度确定单元基于响应于施加的电压流动的电流进行确定，向线圈施加用于确定的电压并以无传感器的方式确定转子的电角度。 电动机控制器还具有扭矩控制单元，其对应于所需扭矩，向扭矩输出扭矩输出电压。 包括在电动机控制器中的调节单元调节电角度确定单元和扭矩控制单元的执行定时，以防止扭矩控制单元的电流变化影响电角度确定单元的执行。 一个可能的过程调度电角度确定单元和扭矩控制单元的执行定时。 另一种可能的过程使电角度确定单元的执行根据所需扭矩的变化而等待。 这种布置使得即使在转矩变化的情况下也能够以高精度确定电角度。

    Motor control apparatus and method of controlling motor
    25.
    发明授权
    Motor control apparatus and method of controlling motor 失效
    电动机控制装置及其控制方法

    公开(公告)号：US6025692A

    公开(公告)日：2000-02-15

    申请号：US158283

    申请日：1998-09-22

    申请人： Eiji Yamada ,  Yasutomo Kawabata

    发明人： Eiji Yamada ,  Yasutomo Kawabata

    IPC分类号： H02P27/06 ,  H02P6/00 ,  H02P6/08 ,  H02P7/00

    CPC分类号： H02P6/08 ,  H02P6/28

    摘要： When a required torque increases under the condition of high-speed rotation, the conventional technique can not detect an electrical angle or control a synchronous motor in a sensor-less manner. The direction that passes through the rotating axis of the motor and makes a magnetic flux run through a permanent magnet is defined as the d-axis, whereas the direction that is electrically perpendicular to the d-axis in the rotational plane of the motor is defined as the q-axis. The technique of the present invention applies voltages to the d-axis and the q-axis based on an estimated electrical angle and solves voltage equations with the observed electric currents. The technique then calculates a correction amount of the electrical angle according to errors of the arithmetic operations and controls the motor. The arithmetic operations are carried out by varying the inductance according to the required torque of the motor. One concrete procedure determines the inductance corresponding to a specific motor driving state by interpolation of the table that stores the inductances corresponding to a variety of motor driving states. Another concrete procedure substitutes the driving states at the respective time points into the function that represents the relationship between the inductance and the driving state, so as to determine the inductance.

    摘要翻译： 当在高速旋转的条件下要求转矩增加时，传统技术无法以无传感器方式检测电角度或控制同步电动机。 通过电动机的旋转轴线并使磁通量穿过永磁体的方向被定义为d轴，而在电动机的旋转平面中与d轴电气垂直的方向被限定 作为q轴。 本发明的技术基于估计的电角度对d轴和q轴施加电压，并且用观察到的电流来解决电压方程式。 然后，该技术根据算术运算的误差来计算电角度的校正量并控制马达。 通过根据电动机的所需扭矩改变电感来执行算术运算。 一个具体的过程通过对存储对应于各种电动机驱动状态的电感的表的插值来确定对应于特定电动机驱动状态的电感。 另一个具体的过程将各个时间点的驱动状态代入表示电感和驱动状态之间的关系的函数，以便确定电感。

    Method and apparatus for driving and controlling synchronous motor using permanent magnets as its field system
    29.
    发明授权
    Method and apparatus for driving and controlling synchronous motor using permanent magnets as its field system 失效
    使用永磁体作为其现场系统来驱动和控制同步电动机的方法和装置

    公开(公告)号：US5569995A

    公开(公告)日：1996-10-29

    申请号：US288031

    申请日：1994-08-10

    申请人： Yasushi Kusaka ,  Eiji Yamada ,  Yasutomo Kawabata

    发明人： Yasushi Kusaka ,  Eiji Yamada ,  Yasutomo Kawabata

    IPC分类号： B60L11/18 ,  B60L15/02 ,  H02P1/46

    CPC分类号： B60L11/1807 ,  B60L11/1861 ,  B60L15/025 ,  H02P21/22 ,  H02P25/03 ,  B60L2220/14 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705

    摘要： A method and an apparatus for driving and controlling a synchronous motor using permanent magnets as its field system are herein disclosed. When a rotational speed of the synchronous motor using the permanent magnets as the field system is more than a base rotational speed, a current condition computing section computes a field weakening reference current in accordance with a battery voltage, a reference torque and a rotational speed. An inverter performs the field weakening control of the the synchronous motor using the permanent magnets as the field system in accordance with the field weakening reference current sent from the current condition computing section to prevent the deterioration of efficiency and the deficiency of output due to the excessive or insufficient field weakening current. The current condition computing section determines optimum reference current by the use of a converged battery voltage, when the battery voltage is converged to a constant value after initial control.

    摘要翻译： 本文公开了一种使用永磁体作为其现场系统来驱动和控制同步电动机的方法和装置。 当使用永久磁铁作为现场系统的同步电动机的旋转速度大于基本旋转速度时，当前状态计算部分根据电池电压，参考转矩和转速计算弱磁参考电流。 逆变器根据从当前状态计算部发送的弱磁参考电流，使用永磁体作为励磁系统来执行同步电动机的弱磁控制，以防止效率的劣化和由于过度的输出而导致的输出不足 或不足的磁场弱化电流。 当电池电压在初始化控制之后收敛到恒定值时，通过使用汇聚电池电压来确定最佳参考电流。

    Drive control apparatus and method of alternating current motor
    30.
    发明授权
    Drive control apparatus and method of alternating current motor 失效
    交流电机驱动控制装置及方法

    公开(公告)号：US06781333B2

    公开(公告)日：2004-08-24

    申请号：US10143020

    申请日：2002-05-13

    申请人： Satoshi Koide ,  Eiji Yamada

    发明人： Satoshi Koide ,  Eiji Yamada

    IPC分类号： H02P700

    CPC分类号： H02P21/00 ,  H02P21/20 ,  H02P23/30 ,  H02P2205/05

    摘要： A drive control apparatus and method drives an AC motor by applying a rectangular wave voltage thereto. The apparatus estimates the torque of a rotor of the AC motor, and detects a torque deviation which is the difference between the estimated torque and a required torque of the motor. A controller controls a state of the rectangular wave voltage applied to the AC motor, through torque feedback control based on the torque deviation, so that the torque approaches the torque command value. The controller detects a current rotation speed of the motor, and switches, in a predetermined order, a plurality of predetermined rectangular wave voltage states corresponding to different phase values of the rectangular wave voltage. The switching timing of the rectangular wave voltage states is set to a timing that deviates from a reference timing determined based on the current rotation speed, by a length of time corresponding to the torque deviation.

    摘要翻译： 驱动控制装置和方法通过向其施加矩形波电压来驱动AC电动机。 该装置估计交流电动机的转子的转矩，并且检测作为该电动机的推定转矩与所需转矩之差的转矩偏差。 控制器通过基于扭矩偏差的转矩反馈控制来控制施加到AC电动机的矩形波电压的状态，使得转矩接近转矩指令值。 控制器检测电动机的当前转速，并且以预定顺序切换与矩形波电压的不同相位值对应的多个预定矩形波电压状态。 矩形波电压状态的切换定时被设定为与基于当前转速确定的基准定时相对应于扭矩偏差的时间长度的定时。