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    Electric motor driving apparatus having failure detection circuit, and failure detection method for the electric motor driving apparatus having failure detection circuit
    1.
    发明授权
    Electric motor driving apparatus having failure detection circuit, and failure detection method for the electric motor driving apparatus having failure detection circuit 有权
    具有故障检测电路的电动机驱动装置，以及具有故障检测电路的电动机驱动装置的故障检测方法

    公开(公告)号：US08878477B2

    公开(公告)日：2014-11-04

    申请号：US13738213

    申请日：2013-01-10

    申请人： Kosuke Nakano ,  Tetsuya Kojima ,  Satoshi Azuma ,  Isao Kezobo ,  Ryuichi Takiguchi

    发明人： Kosuke Nakano ,  Tetsuya Kojima ,  Satoshi Azuma ,  Isao Kezobo ,  Ryuichi Takiguchi

    IPC分类号： H02P1/00 ,  H02P27/08 ,  H02P5/00

    CPC分类号： H02K11/001 ,  H02M7/5395 ,  H02M2001/0009 ,  H02P27/08 ,  H02P29/0241

    摘要： An electric motor driving apparatus having a failure detection circuit includes: a bridge circuit driving an electric motor; a PWM control circuit generating voltage instruction for driving the electric motor; a PWM signal generation circuit generating a PWM signal; a DC current detection circuit detecting DC current of the bridge circuit; a phase current calculation circuit calculating output phase current of the bridge circuit, based on the DC current and PWM signal; and a failure detection circuit detecting failure of the DC current detection circuit. The failure detection circuit determines failure of the DC current detection circuit from the DC current detected values in a zero voltage period in which the high-potential-side arms of the bridge circuit are all ON and in a zero voltage period in which the low-potential-side arms are all ON.

    摘要翻译： 具有故障检测电路的电动机驱动装置包括：驱动电动机的桥式电路; 产生用于驱动电动机的电压指令的PWM控制电路; 产生PWM信号的PWM信号产生电路; 直流电流检测电路，检测桥式电路的直流电流; 基于直流电流和PWM信号计算桥式电路的输出相电流的相电流计算电路; 以及检测直流电流检测电路的故障的故障检测电路。 故障检测电路根据桥电路的高电位侧臂全部为ON的零电压期间的直流电流检测值和低电压周期的零电压期间，确定直流电流检测电路的故障， 潜在手臂全部打开。

    BRUSHLESS MOTOR, EXTERNAL AC VOLTAGE SOURCE, AND ELECTRIC POWER STEERING DEVICE
    2.
    发明申请
    BRUSHLESS MOTOR, EXTERNAL AC VOLTAGE SOURCE, AND ELECTRIC POWER STEERING DEVICE 有权
    无刷电机，外部交流电源和电动转向装置

    公开(公告)号：US20140340015A1

    公开(公告)日：2014-11-20

    申请号：US14369828

    申请日：2013-01-11

    申请人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    发明人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    IPC分类号： H02P25/02

    CPC分类号： H02P25/026 ,  B62D5/046 ,  H02P2207/05

    摘要： The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive method for a brushless motor. The brushless motor includes an armature constituted by an armature core having armature windings of a plurality of phases, and a field pole constituted by a field pole core having a plurality of permanent magnets. A voltage, in which at least a 5th order harmonic component is superimposed on a 1st order fundamental wave of a voltage under predetermined phase difference condition and amplitude condition in order to increase a 1st order fundamental wave peak of the applied voltage over an applied voltage peak, is applied to the armature windings.

    摘要翻译： 本发明提供一种无刷电动机，其中可以提高电压利用率，从而可以提高电动机的转矩和输出，并且还提供了一种用于无刷电动机的驱动方法。 无刷电动机包括由具有多相电枢绕组的电枢铁心构成的电枢和由具有多个永久磁铁的场极铁芯构成的场极。 在预定的相位差条件和振幅条件下，在电压的1阶基波上叠加有至少5次谐波分量的电压，以便在施加的电压峰值上增加施加电压的1阶基波峰值 ，被施加到电枢绕组。

    Brushless motor, external AC voltage source, and electric power steering device
    3.
    发明授权
    Brushless motor, external AC voltage source, and electric power steering device 有权
    无刷电机，外部交流电压源和电动助力转向装置

    公开(公告)号：US09331623B2

    公开(公告)日：2016-05-03

    申请号：US14369828

    申请日：2013-01-11

    申请人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    发明人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    IPC分类号： H02P27/00 ,  H02P25/02 ,  B62D5/04

    CPC分类号： H02P25/026 ,  B62D5/046 ,  H02P2207/05

    摘要： The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive method for a brushless motor. The brushless motor includes an armature constituted by an armature core having armature windings of a plurality of phases, and a field pole constituted by a field pole core having a plurality of permanent magnets. A voltage, in which at least a 5th order harmonic component is superimposed on a 1st order fundamental wave of a voltage under predetermined phase difference condition and amplitude condition in order to increase a 1st order fundamental wave peak of the applied voltage over an applied voltage peak, is applied to the armature windings.

    摘要翻译： 本发明提供一种无刷电动机，其中可以提高电压利用率，从而可以提高电动机的转矩和输出，并且还提供了一种用于无刷电动机的驱动方法。 无刷电动机包括由具有多相电枢绕组的电枢铁心构成的电枢和由具有多个永久磁铁的场极铁芯构成的场极。 在预定的相位差条件和振幅条件下，在电压的1阶基波上叠加有至少5次谐波分量的电压，以便在施加的电压峰值上增加施加电压的1阶基波峰值 ，被施加到电枢绕组。

    PERMANENT MAGNET MOTOR
    8.
    发明申请
    PERMANENT MAGNET MOTOR 有权
    永磁电机

    公开(公告)号：US20140145547A1

    公开(公告)日：2014-05-29

    申请号：US14234178

    申请日：2011-10-14

    申请人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao ,  Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi

    发明人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao ,  Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi

    IPC分类号： H02K1/16

    CPC分类号： H02K1/165 ,  H02K1/2773 ,  H02K1/278 ,  H02K3/28 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

    摘要： Provided is a permanent magnet motor that realizes reduction of both cogging torque and torque ripple, and also downsizing and weight reduction together with torque ripple reduction. When two sets of three-phase armature windings are defined such that a first armature winding 30-1 corresponds to U1 phase, V1 phase, and W1 phase and a second armature winding 30-2 corresponds to U2 phase, V2 phase, and W2 phase, U1 phase is provided in both of any adjacent slots of a plurality of slots 27, or at least one of U1 phase and U2 phase is provided in one of any adjacent slots 27, U1 phase, V1 phase, and W1 phase are shifted by an electric angle of 20° to 40° from U2 phase, V2 phase, and W2 phase upon driving, and a slot opening width Ws of a stator iron core 22 is set to satisfy Ws/(2πRs/Ns)≦0.15, where Rs is an inner radius of the stator iron core and Ns is a slot number of the stator iron core.

    摘要翻译： 提供了实现齿槽转矩和转矩波动的减小的永磁电动机，以及减小扭矩和扭矩波动的小型化和重量减少。 当两组三相电枢绕组被限定为使得第一电枢绕组30-1对应于U1相位，V1相位和W1相位，而第二电枢绕组30-2对应于U2相位，V2相位和W2相位 U1相位设置在多个槽27的任意相邻槽中，或者U1相和U2相中的至少一个在任意相邻的槽27之一中设置，U1相，V1相和W1相位移动 在驱动时与U2相，V2相和W2相的电角度为20°至40°，定子铁芯22的槽口宽度Ws设定为满足Ws /（2＆pgr; Rs / Ns）＆nlE; 0.15 其中Rs是定子铁芯的内半径，Ns是定子铁芯的槽数。

    Permanent magnet motor
    9.
    发明授权
    Permanent magnet motor 有权
    永磁电机

    公开(公告)号：US09564779B2

    公开(公告)日：2017-02-07

    申请号：US14234178

    申请日：2011-10-14

    申请人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao ,  Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi

    发明人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao ,  Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi

    IPC分类号： H02K3/00 ,  H02K1/16 ,  H02K21/16 ,  H02K29/03 ,  H02K3/28 ,  H02K1/27

    CPC分类号： H02K1/165 ,  H02K1/2773 ,  H02K1/278 ,  H02K3/28 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

    摘要： Provided is a permanent magnet motor that realizes reduction of both cogging torque and torque ripple, and also downsizing and weight reduction together with torque ripple reduction. When two sets of three-phase armature windings are defined such that a first armature winding 30-1 corresponds to U1 phase, V1 phase, and W1 phase and a second armature winding 30-2 corresponds to U2 phase, V2 phase, and W2 phase, U1 phase is provided in both of any adjacent slots of a plurality of slots 27, or at least one of U1 phase and U2 phase is provided in one of any adjacent slots 27, U1 phase, V1 phase, and W1 phase are shifted by an electric angle of 20° to 40° from U2 phase, V2 phase, and W2 phase upon driving, and a slot opening width Ws of a stator iron core 22 is set to satisfy Ws/(2πRs/Ns)≦0.15, where Rs is an inner radius of the stator iron core and Ns is a slot number of the stator iron core.

    摘要翻译： 提供了实现齿槽转矩和转矩波动的减小的永磁电动机，以及减小扭矩和扭矩波动的小型化和重量减少。 当两组三相电枢绕组被限定为使得第一电枢绕组30-1对应于U1相位，V1相位和W1相位，而第二电枢绕组30-2对应于U2相位，V2相位和W2相位 U1相位设置在多个槽27的任意相邻槽中，或者U1相和U2相中的至少一个在任意相邻的槽27之一中设置，U1相，V1相和W1相位移动 与U2相，V2相和W2相的电角度为20°至40°，定子铁芯22的槽口宽度Ws设定为满足Ws /（2πRs/ Ns）≤0.15，其中Rs 是定子铁心的内半径，Ns是定子铁芯的槽数。

    Rotary electric machine
    10.
    发明授权
    Rotary electric machine 有权
    旋转电机

    公开(公告)号：US09240707B2

    公开(公告)日：2016-01-19

    申请号：US13611402

    申请日：2012-09-12

    申请人： Ryuichi Takiguchi ,  Yuji Takizawa ,  Yu Hirotani ,  Satoru Akutsu ,  Masatsugu Nakano ,  Tetsuya Iwata

    发明人： Ryuichi Takiguchi ,  Yuji Takizawa ,  Yu Hirotani ,  Satoru Akutsu ,  Masatsugu Nakano ,  Tetsuya Iwata

    IPC分类号： H02K3/12 ,  H02K3/28

    CPC分类号： H02K3/12 ,  H02K3/28

    摘要： A coil is configured so that: N conductor wires of wave windings each divided at at least two positions in a circumferential direction are provided in one of a plurality of slots; within a unit of the divided wave windings in which conduction is made, the N conductor wires are connected in one of series and parallel to each other at division positions located at substantially the same circumferential position of conductor-wire end portions; division units of the divided wave windings are connected in series to each other, and a total number of series turns of the series-connected division units of the each phase is a predetermined number of series turns, which does not exceed an upper limit value of a terminal voltage of the rotary electric machine; and the series-connected division units of the each phase have the same total number of series turns.

    摘要翻译： 线圈被构造成使得：在多个槽中的一个槽中设置有在圆周方向上至少两个位置分割的波形绕组的N根导线; 在进行导通的分波绕组的单位内，N导线在导体线端部的大致相同的圆周位置处的分割位置处以串联并联的方式连接; 分波绕组的分割单元彼此串联连接，并且每相的串联分割单元的串联匝数是预定数量的串联匝数，其不超过 旋转电机的端电压; 每相的串联分割单元具有相同的串联总数。