公开(公告)号：US07659689B2

公开(公告)日：2010-02-09

申请号：US11714564

申请日：2007-03-06

Applicant: Kantaro Yoshimoto ,  Yasuhiko Kitajima ,  Kengo Maikawa

Inventor： Kantaro Yoshimoto ,  Yasuhiko Kitajima ,  Kengo Maikawa

IPC: H02P27/04

CPC classification number: H02M1/10 ,  B60L11/1814 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/547 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/127 ,  Y02T90/14

Abstract: An apparatus and method for supplying a polyphase (AC) alternating current motor with driving voltages. A conversion unit is coupled to phases of the polyphase AC motor and includes a plurality of switching devices and includes, in at least one phase, a first switching device between a bus of an AC power supply and an output terminal, a second switching device between a bus of a direct current (DC) power supply and the output terminal, and a third switching device between a common bus for the AC power supply and the DC power supply and the output terminal. Driving voltages for the polyphase AC motor are generated by selecting a voltage from among voltages having potential values corresponding to the AC power supply and the DC power supply, and the selected voltage is used to operate a switch of the plurality of switching devices.

Abstract translation: 一种用于向多相（AC）交流电动机提供驱动电压的装置和方法。 转换单元耦合到多相交流电动机的相位并且包括多个开关装置，并且在至少一个相位中包括在交流电源的总线与输出端之间的第一开关装置，第二开关装置 直流（DC）电源的总线和输出端子，以及用于交流电源的公共总线与直流电源和输出端子之间的第三开关装置。 通过从具有与交流电源和直流电源相对应的电位值的电压中选择电压来产生多相交流电动机的驱动电压，并且所选择的电压用于操作多个开关装置的开关。

公开(公告)号：US07557527B2

公开(公告)日：2009-07-07

申请号：US11444161

申请日：2006-05-31

Applicant: Kantaro Yoshimoto ,  Yasuhiko Kitajima ,  Kengo Maikawa

Inventor： Kantaro Yoshimoto ,  Yasuhiko Kitajima ,  Kengo Maikawa

IPC: H02P7/00

CPC classification number: H02M7/5388 ,  B60L15/025 ,  B60L2210/10 ,  H02M7/483 ,  H02M7/53875 ,  H02P21/16 ,  Y02T10/643 ,  Y02T10/7216

Abstract: An electrical power converter comprises a first direct current line connected to a first direct current source, a second direct current line connected to a second direct current source, an alternating current line connected to an alternating current motor, a controller, and a pulse generator. The controller determines a required torque of the alternating current motor. The controller also determines a voltage command value that substantially minimizes a copper loss of the alternating current motor while providing the required torque of the alternating current motor. The pulse generator generates an output voltage according to the voltage command value at the alternating current output.

Abstract translation: 电力转换器包括连接到第一直流电源的第一直流线路，连接到第二直流电源的第二直流线路，连接到交流电动机的交流线路，控制器和脉冲发生器。 控制器确定交流电动机的所需扭矩。 控制器还确定电压指令值，其基本上最小化交流电动机的铜损，同时提供交流电动机的所需转矩。 脉冲发生器根据交流输出端的电压指令值产生输出电压。

公开(公告)号：US20070216339A1

公开(公告)日：2007-09-20

申请号：US11724566

申请日：2007-03-15

Applicant: Kantaro Yoshimoto ,  Yasuhiko Kitajima ,  Kengo Maikawa

Inventor： Kantaro Yoshimoto ,  Yasuhiko Kitajima ,  Kengo Maikawa

IPC: H02P27/04

CPC classification number: H02M7/5388 ,  B60L7/06 ,  B60L7/24 ,  B60L11/1868 ,  B60L11/1887 ,  B60L15/007 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/526 ,  B60L2240/527 ,  B60L2240/529 ,  H02M7/483 ,  H02P21/00 ,  Y02T10/643 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7066 ,  Y02T10/7241 ,  Y02T90/34

Abstract: An electric power converter, electric power conversion system and method that, without using a DC-DC converter, uses and allots the electric power of plural power sources while reducing the volume and losses. At least one phase of the motor is connected to plural power sources and generates and synthesizes pulses from output voltages of plural power sources so as to drive the multi-phase AC motor. A different phase of the motor is connected to one DC power source and generates pulses from the output voltage of the power source so as to generate a driving voltage for the multi-phase AC motor. This arrangement allows use/allotment of the power of plural power sources with a reduced number of semiconductor components.

Abstract translation: 一种电力转换器，电力转换系统和方法，在不使用DC-DC转换器的情况下，使用和分配多个电源的电力，同时减小体积和损耗。 电动机的至少一相连接到多个电源，并从多个电源的输出电压产生并合成脉冲，以驱动多相交流电动机。 电动机的不同相位连接到一个直流电源，并从电源的输出电压产生脉冲，以产生用于多相交流电动机的驱动电压。 这种布置允许使用/分配具有减少数量的半导体部件的多个电源的功率。

公开(公告)号：US06940387B2

公开(公告)日：2005-09-06

申请号：US10816630

申请日：2004-04-02

Applicant: Kazuhiko Shibata ,  Takashi Nagasaka ,  Junetsu Tamura ,  Yasuhiko Kitajima ,  Hideharu Moro ,  Tsutomu Chou ,  Tsuneo Suzuki

Inventor： Kazuhiko Shibata ,  Takashi Nagasaka ,  Junetsu Tamura ,  Yasuhiko Kitajima ,  Hideharu Moro ,  Tsutomu Chou ,  Tsuneo Suzuki

IPC: H01F17/04 ,  H01F27/02 ,  H01F27/29 ,  H01F41/02 ,  H01F41/04 ,  H01F41/12 ,  H01F5/00

CPC classification number: H01F17/04 ,  H01F27/027 ,  H01F41/0246 ,  H01F41/127 ,  H01F2017/046 ,  Y10T29/4902 ,  Y10T29/49071

Abstract: A coil-embedded dust core and a method for manufacturing the coil-embedded dust core are provided. The coil-embedded dust core comprises a coil formed from a flat conductor wound in a coil configuration, and a green body consisting of insulating material-coated ferromagnetic metal particles. This results in a coil-embedded dust core more compact in size but with larger inductance. A rectangular wire can be used as the flat conductor. In addition, parts of the coil may function as terminal sections. In this case, the terminal sections of the coil may be formed wider than other part of the coil. The coil-embedded dust core is less prone to joint failures between a coil and terminal sections and to insulation failures of the coil and the terminal section with respect to the magnetic powder. The coil-embedded dust core is more compact while achieving larger inductance.

Abstract translation: 提供了一种线圈嵌入式防尘芯和一种用于制造线圈嵌入式防尘芯的方法。 线圈嵌入式防尘芯包括由缠绕在线圈构造中的扁平导体形成的线圈和由绝缘材料涂覆的铁磁性金属颗粒组成的生坯体。 这导致线圈嵌入式防尘芯体的尺寸更小，但电感更大。 可以使用矩形线作为扁平导体。 此外，线圈的部分可以用作端子部分。 在这种情况下，线圈的端子部分可以形成为比线圈的其它部分更宽。 线圈嵌入式防尘芯不容易发生线圈和端子部分之间的接合故障，并且线圈和端子部分相对于磁粉的绝缘故障。 线圈嵌入式防尘芯更紧凑，同时实现更大的电感。

公开(公告)号：US07775060B2

公开(公告)日：2010-08-17

申请号：US10785197

申请日：2004-02-25

Applicant: Yuki Nakajima ,  Masahiro Tsukamoto ,  Masakazu Kobayashi ,  Yutaro Kaneko ,  Hiroyuki Kaneko ,  Toshiro Shinohara ,  Makoto Iwashima ,  Yasuhiko Kitajima ,  Akihiro Hanamura ,  Kouichirou Yonekura ,  Tadayuki Hatsuda

Inventor： Yuki Nakajima ,  Masahiro Tsukamoto ,  Masakazu Kobayashi ,  Yutaro Kaneko ,  Hiroyuki Kaneko ,  Toshiro Shinohara ,  Makoto Iwashima ,  Yasuhiko Kitajima ,  Akihiro Hanamura ,  Kouichirou Yonekura ,  Tadayuki Hatsuda

IPC: F25D23/12

CPC classification number: F16H57/04 ,  B60L1/02 ,  B60L3/003 ,  B60L3/0061 ,  B60L11/1803 ,  B60L2210/40 ,  B60L2240/425 ,  B60L2240/525 ,  B60L2270/147 ,  H02K7/116 ,  H02K9/19 ,  H02K11/33 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7241

Abstract: A drive unit for an electric vehicle is comprised of a motor, an inverter which supplies alternating current electric power to the motor, a speed reducer which is connected to the motor, and a cooling system which cools the motor, the inverter and the speed reducer. The speed reducer reduces a revolution speed of a mechanical output of the motor. The cooling system comprises a heat exchanger at which first refrigerant for receiving heat of at least one of the motor and the inverter receives heat of second refrigerant for receiving heat of at least one of the motor and the speed reducer.

Abstract translation: 电动车辆的驱动单元由电动机，向电动机供给交流电力的逆变器，与电动机连接的减速器以及冷却电动机，变频器和减速器的冷却系统 。 减速机降低了电机机械输出的转速。 冷却系统包括热交换器，在该热交换器中，用于接收电动机和逆变器中的至少一个的第一制冷剂接收用于接收电动机和减速器中的至少一个的第二制冷剂的热量。

公开(公告)号：US07683511B2

公开(公告)日：2010-03-23

申请号：US10779613

申请日：2004-02-18

Applicant: Makoto Iwashima ,  Akihiro Hanamura ,  Masanori Yamagiwa ,  Yasuhiko Kitajima

Inventor： Makoto Iwashima ,  Akihiro Hanamura ,  Masanori Yamagiwa ,  Yasuhiko Kitajima

IPC: H02K11/00

CPC classification number: H02K11/33

Abstract: A power converter that is arranged in series with a motor to form a unitary structure through which an output shaft extends is provided with a plurality of coolers and a power semiconductor module mounted on a cooling surface of at least one of the plurality of coolers to supply electric power to a motor. Each of the plurality of coolers is disposed along an extending direction radially extending from an output shaft to be perpendicular to the output shaft. The cooling surface is provided along such an extending direction.

Abstract translation: 与马达串联布置以形成输出轴延伸穿过的整体结构的功率转换器设置有多个冷却器和安装在多个冷却器中的至少一个的冷却表面上的功率半导体模块，以供应 对电机的电力。 多个冷却器中的每一个沿着从输出轴径向延伸以垂直于输出轴的延伸方向设置。 冷却表面沿着这样的延伸方向设置。

公开(公告)号：US20080238200A1

公开(公告)日：2008-10-02

申请号：US10573768

申请日：2005-10-20

Applicant: Kantaro Yoshimoto ,  Yasuhiko Kitajima

Inventor： Kantaro Yoshimoto ,  Yasuhiko Kitajima

IPC: H02J1/00

CPC classification number: H02M7/53875 ,  H02M7/487 ,  H02M7/5388 ,  Y10T307/50

Abstract: A control method for a power converter capable of reducing overall volume of a system and energy loss by using a plurality of power sources and distributing loads to them without a DCDC converter and a combination of a fuel cell and a battery. The power converter has DC power sources, and poles formed by connecting various poles of the DC sources. Voltage is applied to a load by switching between poles. The method includes determining conductivity for a switch between poles of said first DC power source when a voltage command is lower than the electric potential output by said second DC power source; determining conductivity for a switch between the poles of said second DC source when the voltage command is higher than the electric potential output by said second DC source; and switching the pole to be connected to said load in accordance with the determinations.

Abstract translation: 一种电力转换器的控制方法，其能够通过使用多个电源来减少系统的总体积和能量损失，并且在没有DCDC转换器和燃料电池和电池的组合的情况下向其分配负载。 电源转换器具有直流电源和通过连接直流电源的各极点形成的极点。 通过在极间切换将电压施加到负载上。 该方法包括当电压指令低于由所述第二直流电源输出的电位时，确定所述第一直流电源的极之间的开关的导电性; 当所述电压指令高于由所述第二DC源输出的电位时，确定所述第二DC源极之间的开关的导电性; 以及根据确定来切换要连接到所述负载的极点。

公开(公告)号：US20060091833A1

公开(公告)日：2006-05-04

申请号：US11258203

申请日：2005-10-26

Applicant: Yasuhiko Kitajima ,  Kantaro Yoshimoto

Inventor： Yasuhiko Kitajima ,  Kantaro Yoshimoto

IPC: H02P1/54

CPC classification number: H02M7/5388 ,  H02P27/14 ,  Y10T307/516 ,  Y10T307/527

Abstract: A motor drive system includes a multi-output dc power source providing three or more output potentials, and a switching circuit including switching devices connected, respectively, with the output potentials of the multi-output power source. A controller determines a command apply voltage representing a desired voltage to be applied to the motor, and further determines a plurality of command share voltages corresponding to supply voltages of the multi-output dc power source, from the command apply voltage. The controller produces a pulsed voltage by driving the switching devices in accordance with the command share voltages.

Abstract translation: 电动机驱动系统包括提供三个或更多个输出电位的多输出直流电源，以及包括分别与多输出电源的输出电位连接的开关装置的开关电路。 控制器确定表示要施加到电动机的期望电压的指令施加电压，并且根据指令施加电压进一步确定与多输出直流电源的电源电压相对应的多个命令共享电压。 控制器通过根据命令共享电压驱动开关装置产生脉冲电压。

公开(公告)号：US06768280B2

公开(公告)日：2004-07-27

申请号：US10179973

申请日：2002-06-26

Applicant: Yasuhiko Kitajima

Inventor： Yasuhiko Kitajima

IPC: H02P700

CPC classification number: H02P6/10 ,  H02P21/0089 ,  H02P21/06

Abstract: A motor control apparatus includes a fundamental wave current control system that controls a fundamental wave component of a motor current in an orthogonal coordinate system and a higher harmonic current control system that controls a higher harmonic component contained in the motor current in an orthogonal coordinate system. In the motor control apparatus, it is judged whether an output voltage from the power conversion device is in a saturated state, and a current control gain for the higher harmonic current control system is reduced if it is judged that the output voltage is in the saturated state.

Abstract translation: 电动机控制装置包括：基波电流控制系统，其控制正交坐标系中的电动机电流的基波分量;以及高次谐波电流控制系统，其控制正交坐标系中电动机电流中包含的高次谐波分量。 在电动机控制装置中，判断输出电压是否处于饱和状态，并且如果判断输出电压处于饱和状态，则高次谐波电流控制系统的电流控制增益被减小 州。

公开(公告)号：US06674262B2

公开(公告)日：2004-01-06

申请号：US09986086

申请日：2001-11-07

Applicant: Yasuhiko Kitajima ,  Masahiro Tsukamoto ,  Kouichirou Yonekura ,  Kantaro Yoshimoto

Inventor： Yasuhiko Kitajima ,  Masahiro Tsukamoto ,  Kouichirou Yonekura ,  Kantaro Yoshimoto

IPC: H02P610

CPC classification number: H02P6/10 ,  H02P21/02 ,  H02P21/06

Abstract: A motor control apparatus comprises a fundamental current command value determining device that determines a fundamental current command value for a motor current based upon at least a torque command value for an AC motor, a higher harmonics current command value determining device that determines a higher harmonics current command value for the motor current and a current control device that controls the current flowing to the AC motor based upon the fundamental current command value and the higher harmonics current command value.

Abstract translation: 电动机控制装置包括基本电流指令值确定装置，其基于至少一个AC电动机的转矩指令值确定用于电动机电流的基本电流指令值，确定高次谐波电流的高次谐波电流指令值确定装置 基于电流指令值和高次谐波指令值，控制电动机电流的指令值和控制流向交流电动机的电流的电流控制装置。