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公开(公告)号：US20100326070A1
公开(公告)日：2010-12-30
申请号：US12784541
申请日：2010-05-21
申请人： Lei Hao , Chandra S. Namuduri , Kenneth J. Shoemaker , Suresh Gopalakrishnan , Sanjeev M. Naik , Xiujie Gao , Paul W. Alexander , Richard J. Skurkis , Tony J. Deschutter
发明人： Lei Hao , Chandra S. Namuduri , Kenneth J. Shoemaker , Suresh Gopalakrishnan , Sanjeev M. Naik , Xiujie Gao , Paul W. Alexander , Richard J. Skurkis , Tony J. Deschutter
IPC分类号： F03G7/06
CPC分类号： H01H61/0107
摘要： A linear actuator associated with an actuator system for a device includes a wire cable fabricated from an active material. The linear actuator couples to the device and to the moveable element. The active material induces strain in the linear actuator in response to an activation signal. The linear actuator translates the moveable element relative to the device in response to the induced strain. An activation controller electrically connects to the linear actuator and generates the activation signal. A position feedback sensor monitors a position of the moveable element.
摘要翻译： 与用于装置的致动器系统相关联的线性致动器包括由活性材料制成的线缆。 线性致动器耦合到装置和可移动元件。 响应于激活信号，活性材料在线性致动器中引起应变。 线性执行器响应于感应应变而相对于装置平移可移动元件。 激活控制器电连接到线性致动器并产生激活信号。 位置反馈传感器监测可移动元件的位置。
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22.发明申请公开(公告)号：US20090269043A1
公开(公告)日：2009-10-29
申请号：US12109676
申请日：2008-04-25
申请人： Chandra S. Namuduri , Suresh Gopalakrishnan , Robert R. Bolio , Ross Feller , Balarama V. Murty
发明人： Chandra S. Namuduri , Suresh Gopalakrishnan , Robert R. Bolio , Ross Feller , Balarama V. Murty
IPC分类号： H02P7/29
CPC分类号： B62D5/046
摘要： A motor control strategy for a motor in a front steering system for a vehicle that reduces vibrations from the motor being transferred to a vehicle hand-wheel. The control strategy also includes operating the electric motor in a commutation freeze mode if a position error signal is less than a first predetermined threshold by sending signals to coils of the motor to prevent to the motor from rotating, operating the electric motor in a commutation normal mode if the position error signal is greater than a second predetermined threshold that is greater than the first predetermined threshold, and operating the electric motor in an angle step mode if the position error signal is between an intermediate threshold and the second threshold where the angle step mode provides a signal to the motor to move the motor forward or backward a predetermined number of motor steps, one step at a time.
摘要翻译： 一种用于车辆的前转向系统中的电动机的电动机控制策略，其减少被传递到车辆手轮的电动机的振动。 控制策略还包括如果位置误差信号小于第一预定阈值，则通过向马达的线圈发送信号以防止马达旋转，以换向正常方式操作电动机，以换相冻结模式操作电动机 模式，如果位置误差信号大于大于第一预定阈值的第二预定阈值，并且如果位置误差信号在中间阈值和第二阈值之间，角度步长模式下操作电动机，其中角度步 模式向马达提供信号以使电机向前或向后移动预定数量的马达步骤，一次一步。
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公开(公告)号：US09135284B1
公开(公告)日：2015-09-15
申请号：US12047567
申请日：2008-03-13
IPC分类号： G06F17/30
CPC分类号： G06F17/30117 , G06F17/30123 , G06F17/30203 , G06F17/30309 , G06F17/30371 , H04L67/1097
摘要： Methods, apparatuses, and systems directed to improving shared file access in wide area network file systems. In a particular implementation, one or more elements of a wide area file system cooperate to keep an original file intact on a remote file server until a new copy of the same file is flushed to the remote file server. In a particular implementation, rename operations identifying a source and a target in connection with application-level save operations are executed as two composite operations including creation of the target, and a delayed deletion of the source. The delay after which the source is deleted can be configured to be just large enough so that the application save operation on a local cache can be completed.
摘要翻译： 旨在改善广域网文件系统中共享文件访问的方法，设备和系统。 在特定实现中，广域文件系统的一个或多个元素协作以将原始文件保持在远程文件服务器上，直到相同文件的新副本被刷新到远程文件服务器。 在特定实现中，重新命名与应用程序级保存操作相关联的源和目标的操作被执行为包括目标的创建以及源的延迟删除的两个复合操作。 源被删除的延迟可以被配置为足够大，以便可以完成本地缓存上的应用程序保存操作。
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公开(公告)号：US07962600B2
公开(公告)日：2011-06-14
申请号：US12703295
申请日：2010-02-10
IPC分类号： G06F15/173
CPC分类号： H04L67/06 , H04L67/1095 , H04L67/2861
摘要： The present invention, in particular embodiments, provides methods, apparatuses and systems directed to providing a Wide Area File System that is robust against network connectivity issues. In particular implementations, the present invention provides a WAFS disconnected-mode read-write access that provides for a more seamless user experience against WAN or other network connectivity failures. Specific embodiments provide for management, at a network device such as an EFG node, of file objects previously opened during a connected state with a remote file server appliance, creation of new file objects during a disconnected state and re-synchronization of those file objects (data and meta-data) when a connection becomes available.
摘要翻译： 本发明在特定实施例中提供了针对网络连接问题提供鲁棒的广域文件系统的方法，装置和系统。 在特定实施方式中，本发明提供了一种WAFS断开模式读写访问，为WAN或其他网络连接故障提供更无缝的用户体验。 具体实施例提供了在诸如EFG节点的网络设备处管理在与远程文件服务器设备的连接状态期间先前打开的文件对象，在断开状态期间创建新文件对象以及重新同步这些文件对象 数据和元数据）。
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公开(公告)号：US07205772B2
公开(公告)日：2007-04-17
申请号：US11312929
申请日：2005-12-20
IPC分类号： G01R31/08
CPC分类号： H02H1/0015 , G01R31/025 , H02H3/44
摘要： An arc fault detector includes a shunt resistor deployed in a protected circuit, an arc discriminator sensing voltages across the shunt resistor and producing an arc indication deduced from current variations associated with parallel and series arc faults, a signal transformer buffering the arc detection signal and producing a pulse, a switch transient detector sensing a voltage differential across load switches and producing a pulsed switch transient signal when the voltage differential across load switches exceeds a reference value, a line interrupter, such as a static relay, a switch controller including logic gates generating a trip signal based on predetermined criteria, and a manual switch for resetting the line interrupter. An embodiment comprises a voltage sensing coil enveloping a toroidal core to detect current variations in conductors passing through the core.
摘要翻译： 电弧故障检测器包括部署在受保护电路中的分流电阻器，电弧鉴别器感测分流电阻器两端的电压并产生从与并联和串联电弧故障相关联的电流变化推断出的电弧指示;信号变压器缓冲电弧检测信号并产生 脉冲，开关瞬态检测器，当负载开关上的电压差超过参考值时，检测负载开关两端的电压差，并产生脉冲开关瞬态信号;线路断续器，如静态继电器;开关控制器，包括逻辑门产生 基于预定标准的跳闸信号，以及用于复位线路断路器的手动开关。 一个实施例包括一个包围环形磁芯的电压感测线圈，以检测通过磁芯的导体的电流变化。
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公开(公告)号：US20060214670A1
公开(公告)日：2006-09-28
申请号：US11312929
申请日：2005-12-20
CPC分类号： H02H1/0015 , G01R31/025 , H02H3/44
摘要： An arc fault detector includes a shunt resistor deployed in a protected circuit, an arc discriminator sensing voltages across the shunt resistor and producing an arc indication deduced from current variations associated with parallel and series arc faults, a signal transformer buffering the arc detection signal and producing a pulse, a switch transient detector sensing a voltage differential across load switches and producing a pulsed switch transient signal when the voltage differential across load switches exceeds a reference value, a line interrupter, such as a static relay, a switch controller including logic gates generating a trip signal based on predetermined criteria, and a manual switch for resetting the line interrupter. An embodiment comprises a voltage sensing coil enveloping a toroidal core to detect current variations in conductors passing through the core.
摘要翻译： 电弧故障检测器包括部署在受保护电路中的分流电阻器，电弧鉴别器感测分流电阻器两端的电压，并产生从与并联和串联电弧故障相关联的电流变化推断的电弧指示;信号变压器缓冲电弧检测信号并产生 脉冲，开关瞬态检测器，当负载开关上的电压差超过参考值时，检测负载开关两端的电压差，并产生脉冲开关瞬态信号;线路断续器，如静态继电器;开关控制器，包括逻辑门产生 基于预定标准的跳闸信号，以及用于复位线路断路器的手动开关。 一个实施例包括一个包围环形磁芯的电压感测线圈，以检测通过磁芯的导体的电流变化。
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公开(公告)号：US07734733B1
公开(公告)日：2010-06-08
申请号：US11763755
申请日：2007-06-15
IPC分类号： G06F15/16
CPC分类号： H04L67/06 , H04L67/1095 , H04L67/2861
摘要： The present invention, in particular embodiments, provides methods, apparatuses and systems directed to providing a Wide Area File System that is robust against network connectivity issues. In particular implementations, the present invention provides a WAFS disconnected-mode read-write access that provides for a more seamless user experience against WAN or other network connectivity failures. Specific embodiments provide for management, at a network device such as an EFG node, of file objects previously opened during a connected state with a remote file server appliance, creation of new file objects during a disconnected state and re-synchronization of those file objects (data and meta-data) when a connection becomes available.
摘要翻译： 本发明在特定实施例中提供了针对网络连接问题提供鲁棒的广域文件系统的方法，装置和系统。 在特定实施方式中，本发明提供了一种WAFS断开模式读写访问，为WAN或其他网络连接故障提供更无缝的用户体验。 具体实施例提供了在诸如EFG节点的网络设备处管理在与远程文件服务器设备的连接状态期间先前打开的文件对象，在断开状态期间创建新文件对象以及重新同步这些文件对象 数据和元数据）。
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28.发明授权System and method for inductance based position encoding sensorless SRM drives 失效基于电感的位置编码无传感器SRM驱动器的系统和方法公开(公告)号：US07095205B2
公开(公告)日：2006-08-22
申请号：US10240622
申请日：2001-03-29
CPC分类号： H02P6/18 , H02P25/089
摘要： A controller (72) for a switched reluctance machine (20) implements a model of at least one active phase representing dynamic magnetic machine characteristics. The controller (72) determines machine control signals based on rotational position obtained by numerically solving the model with measured machine operating parameters. The model may be implemented as the sum of orthogonal functions relating active phase voltage and current with constants derived from phase inductance to obtain the rotor angle.
摘要翻译： 用于开关磁阻电机（20）的控制器（72）实现表示动态磁力机特性的至少一个有效相位的模型。 控制器（72）基于通过用测量的机器操作参数数字求解模型获得的旋转位置来确定机器控制信号。 该模型可以实现为将有源相电压和电流与从相电感得出的常数相关联的正交函数的和，以获得转子角度。
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公开(公告)号：US07009406B2
公开(公告)日：2006-03-07
申请号：US10831733
申请日：2004-04-23
IPC分类号： G01R31/12
CPC分类号： H02H1/0015 , G01R31/025 , H02H3/44
摘要： The present invention discloses an arc fault detector including a shunt resistor deployed in a circuit being protected, an arc discriminator sensing voltages across the shunt resistor and outputting an arc detection signal when it detects current variations caused by parallel and series arc faults, a signal transformer buffering the arc detection signal and outputting a pulse, a switch transient detector detecting a voltage differential across load switches and outputting a pulsed switch transient detection signal when the voltage differential across load switches exceeds a reference value, a line interrupter such as a static relay, a switch controller including logic gates generating a trip signal based on predetermined criteria, and a manual switch for resetting the line interrupter. A second embodiment of the present invention senses voltage induced in a coil wrapped around a toroidal core to detect current variations in conductors which pass through the center of the toroidal core.
摘要翻译： 本发明公开了一种电弧故障检测器，包括部分在被保护电路中的分流电阻器，电弧鉴别器检测分流电阻器两端的电压，并在检测到由并联和串联电弧故障引起的电流变化时输出电弧检测信号;信号变压器 缓冲电弧检测信号并输出脉冲，开关瞬态检测器检测负载开关两端的电压差，并且当负载开关两端的电压差超过参考值时输出脉冲开关瞬态检测信号;线路中断器如静态继电器; 开关控制器，包括基于预定标准产生跳闸信号的逻辑门，以及用于复位线路断路器的手动开关。 本发明的第二实施例感测缠绕在环形磁芯上的线圈中感应的电压，以检测通过环形磁芯中心的导体中的电流变化。
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30.发明申请Switched reluctance motor control with partially disabled operation capability 有权开关磁阻电机控制具有部分禁用的运行能力公开(公告)号：US20050264254A1
公开(公告)日：2005-12-01
申请号：US10854026
申请日：2004-05-26
CPC分类号： H02H7/0833 , G01R31/343 , H02P25/092 , H02P29/032
摘要： Certain circuit faults in a phase of a multi-pole, switched reluctance, rotary electrical machine are detected; and the machine is selectively operated with a detected circuit fault when the nature of the fault permits continued operation of the phase and the operation of the phase is desirable. The fault may be one of certain short or open circuits in which at least one of the two current controlling electronic switches is operable to control phase current within predetermined limits. In the continued operation when a fault is detected, (1) the phase current is switched off earlier than it would be in the absence of the fault and/or (2) the maximum phase current is reduced compared with that permitted in the absence of the fault; and either or both of these modifications may be a function of motor speed. If the circuit fault adversely affects current control by an electronic switch normally controlling current level, another electronic switch is substituted for current control.
摘要翻译： 检测到多极，开关磁阻，旋转电机的相位中的某些电路故障; 并且当故障的性质允许相的继续操作并且期望的操作时，机器被选择性地操作具有检测到的电路故障。 故障可以是某些短路或开路中的一个，其中两个电流控制电子开关中的至少一个可操作以在预定限度内控制相电流。 在检测到故障时的继续操作中，（1）相位电流比在没有故障时提前关闭和/或（2）与没有故障时允许的相电流相比，最大相电流减小 错误; 并且这些修改中的一个或两个可以是电机速度的函数。 如果电路故障不利地影响通常控制电流电平的电子开关的电流控制，则另一电子开关代替电流控制。
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