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21. 发明申请

US20140232304A1 ROTARY ELECTRICAL MACHINE CONTROL DEVICE 有权
标题翻译：旋转电机控制装置
公开(公告)号：US20140232304A1
公开(公告)日：2014-08-21
申请号：US14112390
申请日：2012-06-15
申请人： Takaomi Sekiya , Subrata Saha , Mitsuru Nakamura , Arinori Shimada
发明人： Takaomi Sekiya , Subrata Saha , Mitsuru Nakamura , Arinori Shimada
IPC分类号： H02P21/00
CPC分类号： H02P21/0092 , B60L3/003 , B60L3/0046 , B60L3/0061 , H02P3/18 , H02P21/36 , Y02T10/643
摘要： Regenerated power fed from a rotary electric machine is immediately reduced where connection between an electric machine and a DC power source is blocked. An inverter control section controls the inverter by controlling an armature current in a two-axis orthogonal coordinate system that rotates in synchronization with the rotary electric machine, the armature current being a vector obtained by synthesizing a field current and a drive current extending along respective axes of the orthogonal coordinate system. If it is determined that connection between the DC power source section and the inverter is in a blocked state, the inverter control section executes zero-torque control in which the inverter is controlled such that torque regenerated by the rotary electric machine becomes zero, and executes high-loss control in which the field current is varied so as to increase the armature current while maintaining a torque command provided in the zero-torque control.
摘要翻译：在电机和直流电源之间的连接被阻塞的情况下，从旋转电机馈送的再生电力立即减少。逆变器控制部通过控制与旋转电机同步旋转的两轴正交坐标系中的电枢电流来控制逆变器，电枢电流是通过合成场电流和沿各轴延伸的驱动电流而获得的矢量的正交坐标系。如果确定直流电源部分和逆变器之间的连接处于阻塞状态，则逆变器控制部分执行零转矩控制，其中控制逆变器使得由旋转电机再生的转矩变为零，并执行励磁电流变化的高损耗控制，以便在维持在零转矩控制中提供的转矩指令的同时增加电枢电流。

22. 发明授权

US08395339B2 Motor control device 有权
标题翻译：电机控制装置
公开(公告)号：US08395339B2
公开(公告)日：2013-03-12
申请号：US13018897
申请日：2011-02-01
申请人： Koichi Kato , Keisuke Nishimura , Zhiqian Chen , Subrata Saha
发明人： Koichi Kato , Keisuke Nishimura , Zhiqian Chen , Subrata Saha
IPC分类号： H02P6/18
CPC分类号： H02P6/183 , H02P21/26
摘要： A motor control device that has a high-frequency component, and a DC bias component that has a magnitude which causes a motor to be magnetically saturated and take on a certain value over a predetermined period, and is positively and negatively symmetrical are impressed as an observation command on a d-axis current command. The polarity of the magnetic pole of a permanent magnet is identified based on a relationship of large and small magnitudes between a first amplitude, which is attained during a period during which a DC bias component takes on a positive certain value, among amplitudes of a high-frequency component contained in a d-axis response voltage computed based on a feedback current respondent to the observation command, and a second amplitude attained during a period during which the DC bias component takes on a negative certain value.
摘要翻译：具有高频分量的电动机控制装置和具有使电动机在一定时间内达到一定值并且呈正负对称的电动机饱和并达到一定值的大小的直流偏压分量作为观察指令在d轴电流指令。基于在DC偏置分量取正值之间达到的第一幅度之间的大和小幅度之间的关系来识别永磁体的磁极的极性 - 包括在基于对观察命令的响应的反馈电流计算的d轴响应电压中的频率分量，以及在DC偏置分量承受负特定值的时段期间获得的第二幅度。

23. 发明授权

US08057090B1 Automated bone cement mixer 有权
标题翻译：自动骨水泥搅拌机
公开(公告)号：US08057090B1
公开(公告)日：2011-11-15
申请号：US11513713
申请日：2006-08-31
申请人： Subrata Saha , Pamela Saha
发明人： Subrata Saha , Pamela Saha
IPC分类号： B01F11/00 , B01F13/06
CPC分类号： B01F3/1242 , B01F11/0266 , B01F15/0212 , B01F15/0223 , B01F15/0258 , B01F15/0279 , B01F2215/0029
摘要： A device and related method for mixing a powdered component and a liquid component with minimal user interaction are described. A powdered component and a liquid component are separately fed into a mixing chamber. The powdered component may be released into the liquid component by removing a barrier. Alternatively, the two components are drawn into the mixing chamber from respective sources by a vacuum. The mixture is sonicated at precise vibrational frequencies to control the physical properties of the final blended content. A piston-like device is used to remove the blended content from the mixing chamber.
摘要翻译：描述了以最小的用户相互作用混合粉末组分和液体组分的装置和相关方法。将粉末状成分和液体成分分别送入混合室。粉末状成分可以通过去除屏障而释放到液体组分中。或者，两个部件通过真空从相应的源被吸入混合室。将混合物以精确的振动频率进行超声处理，以控制最终混合含量的物理性质。使用活塞式装置从混合室中除去混合物。

24. 发明申请

US20110074320A1 CONTROL DEVICE FOR ELECTRIC MOTOR DRIVE DEVICE 有权
标题翻译：电动机驱动装置的控制装置
公开(公告)号：US20110074320A1
公开(公告)日：2011-03-31
申请号：US12855220
申请日：2010-08-12
申请人： Mitsuru NAKAMURA , Arinori Shimada , Subrata Saha , Ken Iwatsuki , Zhiqian Chen
发明人： Mitsuru NAKAMURA , Arinori Shimada , Subrata Saha , Ken Iwatsuki , Zhiqian Chen
IPC分类号： H02P21/14
CPC分类号： H02P5/74 , H02P21/0021 , H02P21/0089 , H02P21/06
摘要： A control device that controls an electric motor drive device. The control device is configured with a first voltage control section that derives a modulation rate representing a ratio of an effective value of the voltage command values to the DC voltage and a voltage command phase. A second voltage control section generates a control signal for controlling the DC/AC conversion section on the basis of the modulation rate, the voltage command phase, and a magnetic pole position representing a rotational angle of a rotator of the AC electric motor. A computation cycle of the first voltage control section is set to be longer than a computation cycle of the second voltage control section.
摘要翻译：控制电动机驱动装置的控制装置。控制装置配置有第一电压控制部分，其导出表示电压指令值的有效值与直流电压和电压指令阶段的比率的调制率。第二电压控制部分根据调制率，电压指令相位和表示交流电动机的转子旋转角度的磁极位置产生用于控制DC / AC转换部分的控制信号。第一电压控制部的计算周期被设定为比第二电压控制部的计算周期长。

25. 发明申请

US20100327786A1 Electric motor drive control apparatus 有权
标题翻译：电动机驱动控制装置
公开(公告)号：US20100327786A1
公开(公告)日：2010-12-30
申请号：US12662882
申请日：2010-05-10
申请人： Takeshi Aoki , Subrata Saha
发明人： Takeshi Aoki , Subrata Saha
IPC分类号： H02P6/16
CPC分类号： H02P6/16 , G01D5/24452 , H02P6/15
摘要： An electric motor drive control apparatus includes a detection angle obtaining section that obtains the detection angle of the resolver; a correction information storage section that stores correction information for correcting the detection angle, in association with a modulation ratio that is a ratio of an effective value of a fundamental wave component of the AC voltage to the system voltage; and a detection angle correcting section that obtains the correction information from the correction information storage section, based on the modulation ratio at the time the detection angle obtaining section obtains the detection.
摘要翻译：一种电动机驱动控制装置，包括获取旋转变压器的检测角度的检测角取得部，校正信息存储部分，其与作为交流电压的基波分量的有效值与系统电压的比率的调制比相关联地存储用于校正检测角度的校正信息; 以及检测角度校正部，其基于检测角度获取部获取检测时的调制率，从校正信息存储部获取校正信息。

26. 发明授权

US4235243A Method and apparatus for facilitating the non-invasive, non-contacting study of piezoelectric members 失效
标题翻译：促进压电元件非侵入性，非接触性研究的方法和装置
公开(公告)号：US4235243A
公开(公告)日：1980-11-25
申请号：US953640
申请日：1978-10-23
申请人： Subrata Saha
发明人： Subrata Saha
IPC分类号： A61B5/103 , A61B8/08 , G01N33/483 , A61B5/10
CPC分类号： A61B5/4504 , A61B8/0875
摘要： Method and apparatus for facilitating the non-invasive study of a piezoelectric member, the method including the steps of generating a stress wave in the member at one point and sensing the magnetic field generated in the member at a second point distal to the first point. The apparatus includes an ultrasonic driver for generating the stress wave in the member, and a magnetic field sensor for sensing the generated magnetic field.
摘要翻译：一种用于促进对压电元件进行非侵入性研究的方法和装置，该方法包括以下步骤：在一个点处在该构件中产生应力波并感测在远离第一点的第二点处在该构件中产生的磁场。该装置包括用于在构件中产生应力波的超声波驱动器和用于感测所产生的磁场的磁场传感器。

27. 发明授权

US08232753B2 Control device for electric motor drive apparatus 有权
标题翻译：电动机驱动装置的控制装置
公开(公告)号：US08232753B2
公开(公告)日：2012-07-31
申请号：US12872348
申请日：2010-08-31
申请人： Arinori Shimada , Mitsuru Nakamura , Subrata Saha , Ken Iwatsuki
发明人： Arinori Shimada , Mitsuru Nakamura , Subrata Saha , Ken Iwatsuki
IPC分类号： H02P6/14
CPC分类号： H02P21/0003 , H02P5/74
摘要： A electric motor drive apparatus comprising a voltage control unit performing voltage control processing that determines alternating-current voltage command values serving as command values of the alternating-current voltages to be supplied to the alternating-current electric motor and generates switching control signals for the inverter; and a control mode selection unit selecting a synchronous control mode in which a cycle of electric angle of the alternating-current electric motor is synchronized with a switching cycle of the inverter, or an asynchronous control mode in which the cycles are not synchronized with each other. Current detection processing is performed to detect currents flowing in coils of the alternating-current electric motor in every standard calculation cycle that is set to a half of a cycle of the carrier.
摘要翻译：一种电动机驱动装置，包括：电压控制单元，执行电压控制处理，所述电压控制处理确定作为要提供给所述交流电动机的交流电压的指令值的交流电压指令值，并且生成用于所述逆变器的开关控制信号 ; 以及控制模式选择单元，其选择同步控制模式，其中交流电动机的电角度的周期与逆变器的开关周期同步，或者其中循环不彼此同步的异步控制模式。执行电流检测处理以在设置为载波的周期的一半的每个标准计算周期中检测在交流电动机的线圈中流动的电流。

28. 发明授权

US07928686B2 Electric motor control device, electric vehicle, and hybrid electric vehicle 有权
标题翻译：电动机控制装置，电动汽车，混合动力电动汽车
公开(公告)号：US07928686B2
公开(公告)日：2011-04-19
申请号：US12289691
申请日：2008-10-31
申请人： Subrata Saha , Isao Fujiwara , Keisuke Nishimura , Kazuma Hasegawa , Yoshinori Oono , Seiichi Kinugasa
发明人： Subrata Saha , Isao Fujiwara , Keisuke Nishimura , Kazuma Hasegawa , Yoshinori Oono , Seiichi Kinugasa
IPC分类号： H02P5/00 , F02N11/04
CPC分类号： B60W20/20 , B60K1/02 , B60K6/26 , B60L11/123 , B60L11/14 , B60L15/025 , B60L2240/421 , B60L2240/423 , B60L2270/142 , B60W10/08 , B60W10/26 , B60W20/00 , B60W2050/0002 , B60W2050/0054 , B60W2050/0057 , B60W2510/081 , B60W2710/081 , B60W2710/083 , H02P6/08 , H02P6/183 , H02P21/00 , H02P21/0089 , H02P27/08 , Y02T10/6217 , Y02T10/643 , Y02T10/7077
摘要： An electric motor control device includes a direct current power source; an inverter interposed between an electric motor and the direct current power source, the inverter device controlling an exchange of electric power therebetween; an inverter control unit that generates PWM pulses having a duty ratio corresponding to voltage command signals and sends the PWM pulses to the inverter in order to switch the inverter; a frequency changing unit that changes a carrier frequency of the PWM pulses generated by the inverter control unit in a manner corresponding to a frequency control signal; and a motor control unit.
摘要翻译：电动机控制装置包括直流电源; 插入在电动机和直流电源之间的逆变器，所述逆变器装置控制其间的电力交换; 逆变器控制单元，其产生具有与电压指令信号对应的占空比的PWM脉冲，并将PWM脉冲发送到逆变器以切换逆变器; 频率改变单元，以与频率控制信号对应的方式改变由逆变器控制单元生成的PWM脉冲的载波频率; 和电机控制单元。

29. 发明申请

US20090115362A1 Electric motor control device, electric vehicle, and hybrid electric vehicle 有权
标题翻译：电动机控制装置，电动汽车，混合动力电动汽车
公开(公告)号：US20090115362A1
公开(公告)日：2009-05-07
申请号：US12289691
申请日：2008-10-31
申请人： Subrata Saha , Isao Fujiwara , Keisuke Nishimura , Kazuma Hasegawa , Yoshinori Oono , Seiichi Kinugasa
发明人： Subrata Saha , Isao Fujiwara , Keisuke Nishimura , Kazuma Hasegawa , Yoshinori Oono , Seiichi Kinugasa
IPC分类号： H02P6/08 , B60W20/00
CPC分类号： B60W20/20 , B60K1/02 , B60K6/26 , B60L11/123 , B60L11/14 , B60L15/025 , B60L2240/421 , B60L2240/423 , B60L2270/142 , B60W10/08 , B60W10/26 , B60W20/00 , B60W2050/0002 , B60W2050/0054 , B60W2050/0057 , B60W2510/081 , B60W2710/081 , B60W2710/083 , H02P6/08 , H02P6/183 , H02P21/00 , H02P21/0089 , H02P27/08 , Y02T10/6217 , Y02T10/643 , Y02T10/7077
摘要： An electric motor control device includes a direct current power source; an inverter interposed between an electric motor and the direct current power source, the inverter device controlling an exchange of electric power therebetween; an inverter control unit that generates PWM pulses having a duty ratio corresponding to voltage command signals and sends the PWM pulses to the inverter in order to switch the inverter; a frequency changing unit that changes a carrier frequency of the PWM pulses generated by the inverter control unit in a manner corresponding to a frequency control signal; and a motor control unit.
摘要翻译：电动机控制装置包括：直流电源; 插入在电动机和直流电源之间的逆变器，所述逆变器装置控制其间的电力交换; 逆变器控制单元，其产生具有与电压指令信号对应的占空比的PWM脉冲，并将PWM脉冲发送到逆变器以切换逆变器; 频率改变单元，以与频率控制信号对应的方式改变由逆变器控制单元生成的PWM脉冲的载波频率; 和电机控制单元。

30. 发明申请

US20060125427A1 Method and apparatus for estimating rotor position and for sensorless control of a switched reluctance motor 失效
标题翻译：用于估计转子位置和开关磁阻电机无传感器控制的方法和装置
公开(公告)号：US20060125427A1
公开(公告)日：2006-06-15
申请号：US10536571
申请日：2002-11-28
申请人： Taro Kishibe , Subrata Saha , Hiroshi Murakami , Kazushige Narazaki
发明人： Taro Kishibe , Subrata Saha , Hiroshi Murakami , Kazushige Narazaki
IPC分类号： H02K7/14 , F04D15/00
CPC分类号： H02P25/089
摘要： A discrete rotor position estimation method for a synchronized reluctance motor is provided. A d.c.-link voltage Vdc and a phase current Iph are sensed. A flux-linkage λph of an active phase is calculated from the sensed d.c.-link voltage Vdc and the sensed phase current Iph. The calculated flux-linkage λph is compared with a reference flux-linkage λr. The reference flux-linkage λr corresponds to a reference angle θr which lies between angles corresponding to aligned rotor position and non-aligned rotor position in the synchronized reluctance motor. An estimated rotor position θcal is obtained only once when the calculated flux-linkage λph is greater than the reference flux-linkage λr.
摘要翻译：提供了一种用于同步磁阻电动机的离散转子位置估计方法。检测到直流链路电压V DC和相电流I SUB ph 。根据检测到的直流 - 链路电压V DC和感测的相电流I SUB来计算有源相的磁通λλ。将计算的磁通量λΨ与参考磁链λλ进行比较。参考磁通λλ对应于位于对应于同步磁阻电动机中对准的转子位置和非对准转子位置的角度之间的参考角度θ。当所计算的磁通量λψ大于参考磁链λλ时，仅获得一次估计的转子位置θcal。

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