公开(公告)号：US5038065A

公开(公告)日：1991-08-06

申请号：US349494

申请日：1989-05-09

申请人： Jun Matsubayashi ,  Fumio Tajima ,  Kunio Miyashita ,  Kazuaki Takada ,  Kuniaki Kubokura ,  Eiji Toyoda

发明人： Jun Matsubayashi ,  Fumio Tajima ,  Kunio Miyashita ,  Kazuaki Takada ,  Kuniaki Kubokura ,  Eiji Toyoda

IPC分类号： H02K21/14 ,  H02K29/08

CPC分类号： H02K21/14 ,  H02K29/08

摘要： A rotor of a permanent magnet type synchronous motor facing a stator having a number of slots comprises a rotor core fixed to a motor shaft and an even number of permanent magnets in a circumferential direction of the rotor core. Projecting portions are formed in the shape of a protruding portion of the rotor core over each permanent magnet. The width (A) of each projecting portion is different from the pitch (B) of the slots of the stator. A position detector for detecting the permanent magnet position of the rotor comprises detectors of the normal rotation and other detectors of the reverse rotation. These detectors are arranged having predetermined phase differences (.alpha., .beta.) to a center line. A pattern generating circuit is provided for switching the conducting position to the stator winding corresponding to the phase differences.

摘要翻译： 面向具有多个槽的定子的永久磁铁式同步电动机的转子包括固定在电动机轴上的转子铁芯和在转子铁芯的圆周方向上的偶数个永久磁铁。 突出部分形成为每个永磁体上的转子芯的突出部分的形状。 每个突出部分的宽度（A）不同于定子的槽的间距（B）。 用于检测转子的永磁体位置的位置检测器包括正转的检测器和反转的其它检测器。 这些检测器被布置成与中心线具有预定的相位差（α，β）。 提供模式产生电路，用于将导通位置切换到对应于相位差的定子绕组。

公开(公告)号：US4874053A

公开(公告)日：1989-10-17

申请号：US209998

申请日：1988-06-22

申请人： Hiroshi Kimura ,  Shotaro Naito ,  Kunio Miyashita ,  Yasuo Noto ,  Noboru Sugiura ,  Tadashi Takahashi ,  Hirohisa Yamamura ,  Seizi Yamashita ,  Syooichi Kawamata ,  Fumio Tajima ,  Shigeru Horikoshi

发明人： Hiroshi Kimura ,  Shotaro Naito ,  Kunio Miyashita ,  Yasuo Noto ,  Noboru Sugiura ,  Tadashi Takahashi ,  Hirohisa Yamamura ,  Seizi Yamashita ,  Syooichi Kawamata ,  Fumio Tajima ,  Shigeru Horikoshi

IPC分类号： B62D5/04 ,  B62D6/10 ,  B62D15/02 ,  G01L3/10 ,  G01L5/22

CPC分类号： B62D6/10 ,  G01L3/104 ,  G01L3/109 ,  G01L5/221 ,  B60G2204/11

摘要： A device for detecting a load torque using angle detectors fitted with a certain spacing on a shaft which is rotated by a drive source and on the basis of a relative angular difference of angles detected by the angle detectors. The device includes two rotary drums or discs fitted with a certain spacing on the drive side and load side of the shaft, with a plurality of magnetic poles for generating magnetic signals being formed on the surface thereof, and a magnetic sensor disposed to confront the surface of the rotary drums or discs, with magnetic resistance effect elements which vary in internal resistance in response to the magnetism of the magnetic poles being provided thereon. The amount of torsion created by the load on the load side of the rotary shaft is measured as a phase difference of outputs of the magnetic sensor, and the torque is detected in terms of the angular difference between the magnetic drums or discs. The device is operative to detect a torque in both storage and rotation, and capable of detection within a period of magnetic signal, whereby high-accuracy, high-resolution torque detection is made possible.

摘要翻译： 一种用于使用角度检测器检测负载转矩的装置，所述角度检测器在由驱动源旋转的轴上并且基于由角度检测器检测的角度的相对角度差异在轴上具有一定间隔。 该装置包括两个旋转鼓或盘，其在驱动侧和负载侧安装一定间隔，在其表面上形成有用于产生磁信号的多个磁极和设置成面对表面的磁传感器 具有响应于设置在其上的磁极的磁性而在内阻中变化的磁阻效应元件。 由旋转轴的负载侧上的负载产生的扭转量作为磁传感器的输出的相位差被测量，并且根据磁鼓或盘之间的角度差来检测转矩。 该装置用于检测存储和旋转两者中的转矩，并且能够在磁信号的一段时间内进行检测，由此可以实现高精度，高分辨率的扭矩检测。

公开(公告)号：US4980617A

公开(公告)日：1990-12-25

申请号：US310197

申请日：1989-02-14

申请人： Fumio Tajima ,  Hiroshi Katayama ,  Tunehiro Endo ,  Kunio Miyashita ,  Seiichi Narushima ,  Jun Ohya ,  Kouchi Saito

发明人： Fumio Tajima ,  Hiroshi Katayama ,  Tunehiro Endo ,  Kunio Miyashita ,  Seiichi Narushima ,  Jun Ohya ,  Kouchi Saito

IPC分类号： H02P6/00 ,  H02P6/06

CPC分类号： H02P6/006 ,  H02P6/06

摘要： A speed control apparatus is provided for controlling a speed of a movable equipment in such a way that the speed of the movable equipment is detected, calculates a deviation value between a detected speed of the movable equipment and a speed instruction signal, and controls the speed of the movable equipment based on the deviation value. The speed control equipment detects harmonic wave components included in the detected speed and reduces the harmonic wave components from the speed instruction signal so as to control the speed of the movable equipment.

摘要翻译： 提供一种速度控制装置，用于以可检测的可移动设备的速度来控制可移动设备的速度，计算可移动设备的检测速度与速度指令信号之间的偏差值，并控制速度 基于偏差值的可移动设备。 速度控制设备检测包含在检测速度中的谐波成分，并从速度指令信号中减少谐波分量，以便控制可移动设备的速度。

公开(公告)号：US5023924A

公开(公告)日：1991-06-11

申请号：US473915

申请日：1990-02-02

申请人： Fumio Tajima ,  Hiroshi Katayama ,  Kunio Miyashita ,  Shigeki Morinaga ,  Seiichi Narushima

发明人： Fumio Tajima ,  Hiroshi Katayama ,  Kunio Miyashita ,  Shigeki Morinaga ,  Seiichi Narushima

IPC分类号： H02P6/00 ,  H02P6/06 ,  H02P6/10

CPC分类号： H02P6/10 ,  H02P6/006 ,  H02P6/06 ,  Y10S388/906

摘要： In order to provide a speed control apparatus for a movable equipment having small torque ripples and speed variation, the present invention has a speed control means which comprises a driver for providing a current or a voltage having a magnitude corresponding to the instructed speed, a speed detection circuit for detecting a speed on the basis of a signal from the speed detector and a microcomputer for driving the driver by comparing the speed instruction signal with a speed signal obtained from the speed detection circuit. The microcomputer includes a harmonic wave component detecting means for detecting a harmonic wave component contained in a speed variation mode which is obtained from the speed detection circuit and has a function of making the gain of a speed control system variable by the harmonic wave component detected by the harmonic wave component detecting means.

公开(公告)号：US4918346A

公开(公告)日：1990-04-17

申请号：US211042

申请日：1988-06-24

申请人： Fumio Tajima ,  Nicolas Samman ,  Kunio Miyashita ,  Hiroshi Katayama ,  Motoya Ito ,  Seiichi Narushima ,  Kiyoshi Yamamuro

发明人： Fumio Tajima ,  Nicolas Samman ,  Kunio Miyashita ,  Hiroshi Katayama ,  Motoya Ito ,  Seiichi Narushima ,  Kiyoshi Yamamuro

IPC分类号： H02K1/27 ,  H02K29/08

CPC分类号： H02K1/2793 ,  H02K29/08

摘要： The stator comprises three phase driving coils and an electric commutator for controlling current to the driving coils. The rotor comprises permanent magnets which are alternately magnetized in N polarity and S polarity. Driving torque is generated corresponding to the current flowing through the driving coils and the permanent magnets. On the surface of the permanent magnet facing to the driving coils, two non-magnetizing portions are provided in each permanent magnet having either N or S polarity.

摘要翻译： 定子包括三相驱动线圈和用于控制到驱动线圈的电流的电动换向器。 转子包括以N极性和S极性交替磁化的永磁体。 对应于流经驱动线圈和永磁体的电流产生驱动转矩。 在面向驱动线圈的永磁体的表面上，在具有N或S极性的每个永磁体中设置两个非磁化部分。

公开(公告)号：US4914361A

公开(公告)日：1990-04-03

申请号：US362239

申请日：1989-06-06

申请人： Fumio Tajima ,  Hiroshi Katayama ,  Kunio Miyashita ,  Seiichi Narushima ,  Kouichi Saito

发明人： Fumio Tajima ,  Hiroshi Katayama ,  Kunio Miyashita ,  Seiichi Narushima ,  Kouichi Saito

IPC分类号： H02P6/06 ,  H02P23/00

CPC分类号： H02P6/06 ,  H02P23/16

摘要： Disclosed is a speed controlling method and apparatus in which a suitable current or voltage command is given to a moving body on the basis of the relation between a speed detection signal obtained by detecting the speed of the moving body and an externally supplied speed command signal. The speed of the moving body is controlled in a manner so that the speed of the moving body is successively detected, a speed error which is a difference between a speed command value and a speed detection value is calculated whenever the speed of the moving body is detected, and the speed of the moving body is successively controlled on the basis of a driving signal obtained by an arithmetic operation on the basis of the speed error and a set control gain, and that, on the other hand, a present speed error quantity is calculated on the basis of speed errors obtained whenever the detection of the speed of the moving body have been carried out predetermined number of times, the speed error quantity obtained presently is compared with and the speed error quantity obtained last, and the set gain is corrected or updated in accordance with the result of comparison of the present and last speed error quantities to thereby minimize the speed error quantity.

摘要翻译： 公开了一种速度控制方法和装置，其中，根据通过检测移动体的速度获得的速度检测信号和外部提供的速度指令信号之间的关系，向移动体提供合适的电流或电压指令。 控制移动体的速度，使得运动体的速度被连续地检测到，只要移动体的速度为运动体的速度，就计算作为速度指令值与速度检测值之差的速度误差 基于通过基于速度误差和设定控制增益的算术运算获得的驱动信号连续地控制移动体的速度，另一方面，当前速度误差量 只要移动体的速度的检测已经执行了预定次数，将当前获得的速度误差量与最后获得的速度误差量进行比较，则基于所获得的速度误差来计算，并且设定的增益为 根据当前和最后速度误差量的比较结果进行校正或更新，从而使速度误差量最小化。

公开(公告)号：US4672253A

公开(公告)日：1987-06-09

申请号：US758699

申请日：1985-07-25

申请人： Fumio Tajima ,  Hiroshi Katayama ,  Kunio Miyashita ,  Teizo Tamura ,  Kenichi Hironaka ,  Takuro Kawano ,  Yosimi Sekita ,  Kouichi Saito ,  Akira Tamura

发明人： Fumio Tajima ,  Hiroshi Katayama ,  Kunio Miyashita ,  Teizo Tamura ,  Kenichi Hironaka ,  Takuro Kawano ,  Yosimi Sekita ,  Kouichi Saito ,  Akira Tamura

IPC分类号： H02K21/16 ,  H02K21/22 ,  H02K29/00 ,  H02K21/00 ,  H02K1/14

CPC分类号： H02K21/16 ,  H02K21/22 ,  H02K29/03

摘要： A permanent magnet electric machine such as, for example, a motor or generator, including a permanent magnet field member, an armature having salient magnetic poles and armature windings. A greatest common division of the number of magnetic poles of the field member and the salient magnetic poles having the armature windings differs from the number of magnetic poles. A group of grooves is formed between the salient magnetic poles having an interval of 2/3M.pi., with M being an integer which is not a multiple of three. To reduce the occurrence of cogging torque, auxiliary grooves are provided on the surface of the salient poles at positions which are spaced apart from positions of the grooves by (.pi./3)K+(.pi./6), in terms of electrical angle, with K being an integer.

摘要翻译： 一种永磁电机，例如包括永磁场构件的电动机或发电机，具有突出磁极和电枢绕组的电枢。 磁场部件的磁极数和具有电枢绕组的凸极的极数的最大共同点与磁极数不同。 在具有2 / 3MpI间隔的突出磁极之间形成一组凹槽，M是不是3的倍数的整数。 为了减少齿槽转矩的发生，在凸极表面上设置辅助凹槽，其位置是从凹槽的位置与电角度（pi / 3）K +（pi / 6），以电角度与 K为整数。

公开(公告)号：US09806571B2

公开(公告)日：2017-10-31

申请号：US14404551

申请日：2012-05-28

申请人： Yukinari Fujisawa ,  Masataka Yahara ,  Hiroshi Nagase ,  Fumio Tajima ,  Yoshihiro Yamaguchi

发明人： Yukinari Fujisawa ,  Masataka Yahara ,  Hiroshi Nagase ,  Fumio Tajima ,  Yoshihiro Yamaguchi

IPC分类号： H02K1/27

CPC分类号： H02K1/2773 ,  H02K1/2766

摘要： A composite torque rotating electric machine includes a stator having armature windings arranged at multiple positions in a circumferential direction, a rotor having a cylindrical core, first permanent magnets arranged on axes (d) and in the circumferential direction on the outer periphery of the rotor, second permanent magnets arranged on axes (d) on the inner periphery side of the rotor across from the permanent magnets on the outer circumference side, third permanent magnets on axes (q) and extending in the longitudinally and radially of the rotor, and air gaps on the outer periphery side of the third permanent magnets and intermediate in the circumferential direction of the first permanent magnets. The radial distance between the first and second magnets is greater than the circumferential distance between the first permanent magnets and the air gaps. A rectifier having multiple slits is disposed between the first permanent magnets and the air gaps.

公开(公告)号：US08067871B2

公开(公告)日：2011-11-29

申请号：US12406164

申请日：2009-03-18

申请人： Fumio Tajima ,  Yutaka Matsunobu ,  Masashi Kitamura ,  Noriaki Hino ,  Takashi Kobayashi ,  Shigeru Kakugawa ,  Takashi Yasuhara

发明人： Fumio Tajima ,  Yutaka Matsunobu ,  Masashi Kitamura ,  Noriaki Hino ,  Takashi Kobayashi ,  Shigeru Kakugawa ,  Takashi Yasuhara

IPC分类号： H02K1/12

CPC分类号： H02K1/2766 ,  B60L7/14 ,  B60L11/1803 ,  B60L11/1877 ,  B60L15/2009 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2270/145 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/72 ,  Y02T10/7275

摘要： A permanent magnet rotating electric machine comprises a stator having stator windings wound round a stator iron core and a permanent magnet rotor having a plurality of inserted permanent magnets in which the polarity is alternately arranged in the peripheral direction in the rotor iron core. The rotor iron core of the permanent magnets is composed of magnetic pole pieces, auxiliary magnetic poles, and a stator yoke, and furthermore has concavities formed on the air gap face of the magnetic pole pieces of the rotor iron core of the permanent magnets, gently tilting from the central part of the magnetic poles to the end thereof. In a permanent magnet rotating electric machine, effects of iron loss are reduced, and an electric car using highly efficient permanent magnet rotating electric machine are realized.

摘要翻译： 一种永久磁铁旋转电机，其特征在于，具有绕定子铁芯缠绕的定子绕组的定子和具有多个插入永久磁铁的永久磁铁转子，所述永久磁铁的极性在转子铁芯的圆周方向上交替排列。 永磁体的转子铁芯由磁极片，辅助磁极和定子磁轭构成，并且还具有形成在永磁体的转子铁芯的磁极片的气隙面上的凹部，轻轻地 从磁极的中心部分倾斜到其末端。 在永久磁铁旋转电机中，减少了铁损的效果，实现了使用高效永磁旋转电机的电动车。

公开(公告)号：US07851959B2

公开(公告)日：2010-12-14

申请号：US12403255

申请日：2009-03-12

申请人： Fumio Tajima ,  Yutaka Matsunobu ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi ,  Keiji Oda

发明人： Fumio Tajima ,  Yutaka Matsunobu ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi ,  Keiji Oda

IPC分类号： H02K1/22 ,  H02K21/12

CPC分类号： H02K1/276 ,  H02K29/03

摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.