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    • 2. 发明授权
    • Controller for AC motor
    • 交流电机控制器
    • US06259226B1
    • 2001-07-10
    • US09486606
    • 2000-03-01
    • Toshiyuki KaitaniTetsuaki NaganoTsutomu KazamaMasanori OzakiFumio Kumazaki
    • Toshiyuki KaitaniTetsuaki NaganoTsutomu KazamaMasanori OzakiFumio Kumazaki
    • H02P736
    • H02P6/085
    • There is provided a controlling device for an AC motor having a structure in which a current of a three phase brushless DC motor is detected and then converted to a rotor coordinate system, to separately control a torque split current (q axis) and an exciting split current (d axis), wherein an offset is estimated with a DC component of a multiplied value of the values corresponding to a d axis voltage command which is an output of an exciting split current controller and an electrical angle, and the detected current is compensated for, so that an offset of a current detector may be estimated and compensated for during its operation without stopping its rotation and the motor can rotate smoothly without a torque ripple, even in the case in which the current detector has an offset error or in the case in which an offset changes due to a temperature drift.
    • 提供了一种用于AC电动机的控制装置,其具有检测三相无刷直流电动机的电流然后转换为转子坐标系的结构,以分别控制转矩分流电流(q轴)和激励分流 电流(d轴),其中利用作为励磁分流电流控制器的输出的ad轴电压指令的值的相乘值的DC分量和电角度来估计偏移量,并且检测的电流被补偿 ,因此即使在电流检测器具有偏移误差的情况下,电流检测器的偏移也可以在其操作期间被估计和补偿而不停止其旋转,并且马达可以平稳地旋转而没有转矩脉动 其中偏移由于温度漂移而改变。
    • 5. 发明授权
    • Electric contact materials, production methods thereof and electric
contacts used these
    • 电接触材料,其制造方法和使用这些的电接点
    • US5409762A
    • 1995-04-25
    • US38282
    • 1993-03-29
    • Masanori OzakiKeiji Mashimo
    • Masanori OzakiKeiji Mashimo
    • C23C14/06C23C14/14C23C16/06C23C16/30H01H1/021H01H1/02H01R13/02
    • C23C14/0641C23C14/06C23C14/067C23C14/14C23C16/06C23C16/30H01H1/021Y10T428/24975Y10T428/265
    • The present invention provides inexpensive electric contact materials having higher hardness and higher melting point and being more excellent in the points of wear resistance and environmental resistance over the electric contact materials of Ag type, Au type, platinum group type, etc. having been used so far, production methods thereof and electric contacts used said contact materials.In the electric contact materials of the invention, basically, a covering layer having at least one selected from transition metals of groups IVa (Ti, Zr, Hf, etc.), Va (V, Nb, Ta, etc.) and VIa (Cr, Mo, W, etc.) as a major ingredient is formed on the substrate as an electric contact in a thickness of 0.03 to 100 .mu.m, and, if need be, a fixed intermediate layer is formed between said covering layer of electric contact and substrate or a fixed surface layer is formed on the outside of covering layer of electric contact, thus aiming at further improvement in the characteristics of contact.Such covering layer of electric contact can be formed by chemical vaporization or physical vaporization such as plasma CVD, sputtering, ion assist vaporization, ion plating, laser beam sputtering or the like and, by making the conditions of these vaporizations appropriate, it is possible to produce the electric contact materials having excellent characteristics of contact.
    • 本发明提供了具有较高硬度和较高熔点的便宜的电接触材料,并且在Ag类型,Au型,铂族类型等的电接触材料上的耐磨性和耐环境性方面更优异。 远远地,其制造方法和使用所述接触材料的电接点。 在本发明的电接触材料中,基本上是具有从IVa(Ti,Zr,Hf等),Va(V,Nb,Ta等)和VIa(Ti,Zr,Hf等)的过渡金属中选出的至少一种的覆盖层, Cr,Mo,W等)作为主要成分,作为电接触形成在基板上,厚度为0.03〜100μm,如果需要,在所述电气覆盖层之间形成固定中间层 接触和基板或固定表面层形成在电接触覆盖层的外侧,从而旨在进一步提高接触特性。 这种电接触覆盖层可以通过化学蒸发或物理蒸发形成,例如等离子体CVD,溅射,离子辅助汽化,离子电镀,激光束溅射等,并且通过使这些汽化条件适当, 产生具有良好接触特性的电接触材料。
    • 8. 发明授权
    • Motor control device
    • 电机控制装置
    • US08736211B2
    • 2014-05-27
    • US13257627
    • 2010-03-08
    • Akira TanabeYoshihiro MarushitaHidetoshi IkedaKei TeradaTetsuya TanabeMasahiko YoshidaMasanori Ozaki
    • Akira TanabeYoshihiro MarushitaHidetoshi IkedaKei TeradaTetsuya TanabeMasahiko YoshidaMasanori Ozaki
    • H02P7/00
    • H02P23/04
    • Provided is a motor control device which realizes automatic adjustment of control of a motor for driving a mechanical load through a simple operation. The motor control device includes: a follow-up control unit (6) for receiving detection information of a detector (3) to output a torque command signal and output a status of motor control of a motor (1) as a control status amount signal, when a command signal regarding the motor control to be output from an upper-level controller is absent; an oscillation detection unit (9) for receiving the control status amount signal and detecting oscillation of a control status amount to output an oscillation detection signal; and an automatic adjustment unit (10) for receiving the oscillation detection signal to monitor a control status of the motor (1) and adjust a control parameter of the follow-up control unit (6) only when abnormality is detected.
    • 提供一种电动机控制装置,其通过简单的操作实现用于驱动机械负载的电动机的控制的自动调节。 电动机控制装置包括:跟随控制单元(6),用于接收检测器(3)的检测信息,以输出转矩指令信号,并输出电动机(1)的电动机控制状态作为控制状态量信号 当从上级控制器输出关于电动机控制的命令信号时, 振荡检测单元(9),用于接收控制状态量信号并检测控制状态量的振荡以输出振荡检测信号; 以及仅在检测到异常时,接收振动检测信号以监视电动机(1)的控制状态并且调整跟随控制单元(6)的控制参数的自动调整单元(10)。
    • 9. 发明授权
    • Test device and test method for mobile communication terminal
    • 移动通信终端的测试设备和测试方法
    • US08665730B2
    • 2014-03-04
    • US13489497
    • 2012-06-06
    • Masanori OzakiTakeshi YoshidaFumitaka Nonaka
    • Masanori OzakiTakeshi YoshidaFumitaka Nonaka
    • H04W24/06
    • H04W24/06
    • To reduce the load of a communication process performed between pseudo base stations of different communication standards. An LTE pseudo base station unit 3 includes: an LTE message processing unit 3b that transmits broadcast information including base station information about a C2K pseudo base station unit 4 to a mobile communication terminal 10, which is a test target, extracts location registration request message information from data when receiving the data including the location registration request message information as response message information to the transmitted broadcast information, and outputs the location registration request message information; and a specific C2K message processing unit 3c that outputs the location registration request message information as response message information when receiving the location registration request message information from the LTE message processing unit 3b.
    • 减少在不同通信标准的伪基站之间执行的通信过程的负载。 LTE伪基站单元3包括:向作为测试对象的移动通信终端10发送包括关于C2K伪基站单元4的基站信息的广播信息的LTE消息处理单元3b,提取位置登记请求消息信息 从发送的广播信息中接收包含位置登记请求消息信息的数据作为响应消息信息时的数据,并输出该位置登记请求消息信息; 以及当从LTE消息处理单元3b接收到位置登记请求消息信息时,将位置登录请求消息信息作为响应消息信息输出的特定C2K消息处理部3c。