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91. 发明授权

US07956797B2 System and method for measuring a relative distance between vehicle components using ultra-wideband techniques 有权
标题翻译：使用超宽带技术测量车辆部件之间相对距离的系统和方法
公开(公告)号：US07956797B2
公开(公告)日：2011-06-07
申请号：US12400112
申请日：2009-03-09
申请人： Timothy J. Talty , Chandra S. Namuduri , Yunjun Li , Nancy McMahon , Robert B. Elliott
发明人： Timothy J. Talty , Chandra S. Namuduri , Yunjun Li , Nancy McMahon , Robert B. Elliott
IPC分类号： G01S13/08 , F03G7/08 , H02J7/00
CPC分类号： B60G17/019 , B60G13/14 , B60G2204/112 , B60G2204/1162 , B60G2204/128 , B60G2206/41 , B60G2300/60 , B60G2400/252 , B60G2400/95 , B60G2401/17 , B60G2600/22 , B60G2800/91 , F16F9/3292 , G01S13/0209 , G01S13/10 , G01S13/88
摘要： A system for measuring relative distance between a first component on a vehicle and a second component on the vehicle is provided. The system includes a wireless ultra-wideband (UWB) transceiver attached to the first component. The wireless UWB transceiver transmits a UWB measurement pulse toward the second component, and receives a reflected UWB pulse from a reflective surface of the second component. The reflected UWB pulse represents a reflected version of the UWB measurement pulse. The system also includes a processor coupled to the wireless UWB transceiver. The processor derives a relative distance between the first component and the second component, based upon characteristics of the UWB measurement pulse and the reflected UWB pulse. The system further includes a power generating system for the wireless UWB transceiver. The power generating system generates operating voltage for the wireless UWB transceiver from kinetic energy associated with motion of the first component relative to the second component.
摘要翻译：提供了一种用于测量车辆上的第一部件与车辆上的第二部件之间的相对距离的系统。该系统包括连接到第一组件的无线超宽带（UWB）收发器。无线UWB收发器向第二分量发送UWB测量脉冲，并且从第二分量的反射表面接收反射的UWB脉冲。反射的UWB脉冲表示UWB测量脉冲的反射版本。该系统还包括耦合到无线UWB收发器的处理器。基于UWB测量脉冲和反射的UWB脉冲的特性，处理器导出第一分量和第二分量之间的相对距离。该系统还包括用于无线UWB收发器的发电系统。发电系统通过与第一部件相对于第二部件的运动相关联的动能产生无线UWB收发器的工作电压。

92. 发明授权

US07919949B2 High efficiency generator 有权
标题翻译：高效率发电机
公开(公告)号：US07919949B2
公开(公告)日：2011-04-05
申请号：US12114008
申请日：2008-05-02
申请人： Chandra S. Namuduri , Lei Hao
发明人： Chandra S. Namuduri , Lei Hao
IPC分类号： H02P9/30
CPC分类号： H02M7/219 , H02P9/30
摘要： A generator system that includes a three-phase AC machine and an active rectifier bridge employing low on-resistance MOSFET switches for converting the AC current from the machine to a DC current. The system also includes a switch control circuit to switch the MOSFET switches in synchronization with the three-phase current flow. The system determines the phase-to-ground voltages of the machine as inputs to the switch control circuit. The control circuit calculates the phase-to-phase voltages from the phase-to-ground voltages. The control circuit then determines if each of the phase-to-phase voltages is above or below first and second predetermined threshold voltages, where if the phase-to-phase voltage is above the first threshold voltage, the control circuit closes the switch, and if the phase-to-phase voltage is below the second threshold voltage, the control circuit opens the switch.
摘要翻译：一种发电机系统，包括三相交流电机和采用低导通电阻MOSFET开关的有源整流桥，用于将来自机器的交流电流转换为直流电流。该系统还包括开关控制电路，以与三相电流流同步地切换MOSFET开关。该系统确定机器的相对地电压作为开关控制电路的输入。控制电路根据相对地电压来计算相间电压。然后，控制电路确定每个相间电压是否高于或低于第一和第二预定阈值电压，其中如果相间电压高于第一阈值电压，则控制电路关闭开关，并且如果相间电压低于第二阈值电压，则控制电路打开开关。

93. 发明申请

US20100326070A1 ACTUATOR SYSTEM INCLUDING AN ACTIVE MATERIAL 有权
标题翻译：包括活性材料的执行器系统
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。

94. 发明申请

US20100244613A1 OPTIMIZED ELECTRIC MACHINE FOR SMART ACTUATORS 有权
标题翻译：用于智能执行器的优化电机
公开(公告)号：US20100244613A1
公开(公告)日：2010-09-30
申请号：US12409663
申请日：2009-03-24
申请人： Lei Hao , Chandra S. Namuduri , Balarama V. Murty
发明人： Lei Hao , Chandra S. Namuduri , Balarama V. Murty
IPC分类号： H02K16/04
CPC分类号： H02K21/12 , H02K3/28 , H02K16/04
摘要： An electric machine includes a plurality of magnets for generating a first magnetic field. A magnet holder retains the plurality of magnets. A first stator is disposed radially outward from the magnet holder for generating a second magnetic field. The first stator includes a plurality of stator poles separated by slots with each of the stator poles having a concentrated winding with a respective number of turns formed around each respective stator pole. A second stator is disposed radially inward from the magnet for generating a third magnetic field. The second stator has a plurality of stator poles separated by slots with each of the stator poles having a concentrated winding with a respective number of turns formed around each respective stator pole. The magnet holder and magnets retained therein are rotatable between the first stator and second stator.
摘要翻译：电机包括用于产生第一磁场的多个磁体。磁体保持器保持多个磁体。第一定子从磁体保持器径向向外设置以产生第二磁场。第一定子包括多个由槽隔开的定子极，每个定子极具有集中的绕组，每个定子极都形成有相应的匝数。第二定子从磁体径向向内设置以产生第三磁场。第二定子具有由槽间隔开的多个定子极，每个定子极具有集中的绕组，每个相应的定子极周围形成相应的匝数。保持在其中的磁体保持器和磁体可在第一定子和第二定子之间旋转。

95. 发明申请

US20100236851A1 CONTROL OF A STARTER-ALTERNATOR DURING A HIGH-VOLTAGE BATTERY FAULT CONDITION 有权
标题翻译：在高压电池故障条件期间控制起动器
公开(公告)号：US20100236851A1
公开(公告)日：2010-09-23
申请号：US12407143
申请日：2009-03-19
申请人： Keith D. Van Maanen , Sean E. Gleason , Chandra S. Namuduri , Steven V. Wybo
发明人： Keith D. Van Maanen , Sean E. Gleason , Chandra S. Namuduri , Steven V. Wybo
IPC分类号： B60W10/04 , G06F17/00 , B60W20/00
CPC分类号： B60L3/0046 , B60L11/005 , B60L11/14 , B60L2210/40 , Y02T10/70 , Y02T10/7022 , Y02T10/7077 , Y02T10/7241
摘要： A method sustains auxiliary power generation aboard a mild hybrid electric vehicle (HEV) in response to a high-voltage (HV) electrical fault condition and executes one of a pair of default limp-home modes depending on the state of the engine at the time of the fault. Each limp-home mode sustains auxiliary power generation during the fault, and at least one mode charges capacitors in the HV bus circuit to provide magnetizing current to a motor generator unit (MGU). An HEV includes a controller and algorithm for sustaining auxiliary power generation during the above fault condition, with the algorithm adapted to control output of an auxiliary power module (APM) and execute one of a pair of default limp-home modes, including a mode in which the APM charges the capacitors to enable a power inverter module (PIM) to provide an initial excitation current to the MGU after the starter motor restarts the engine.
摘要翻译：一种方法是在温和的混合动力电动汽车（HEV）的基础上，在高电压（HV）的电气故障条件下进行辅助发电，并根据发动机的状态执行一对默认的跛行家庭模式的错误。每个跛脚家庭模式在故障期间保持辅助发电，并且至少一个模式对HV总线电路中的电容器充电以向电动发电机单元（MGU）提供磁化电流。 HEV包括用于在上述故障状态期间维持辅助发电的控制器和算法，该算法适用于控制辅助电源模块（APM）的输出，并执行一对默认跛行模式，其中包括一种模式其中APM对电容器充电，以使电源逆变器模块（PIM）在起动器电动机重新起动发动机之后向MGU提供初始励磁电流。

96. 发明授权

US07791245B1 Optimized electric machine for smart actuators 有权
标题翻译：智能执行机构优化电机
公开(公告)号：US07791245B1
公开(公告)日：2010-09-07
申请号：US12409663
申请日：2009-03-24
申请人： Lei Hao , Chandra S. Namuduri , Balarama V. Murty
发明人： Lei Hao , Chandra S. Namuduri , Balarama V. Murty
IPC分类号： H02K1/22
CPC分类号： H02K21/12 , H02K3/28 , H02K16/04
摘要： An electric machine includes a plurality of magnets for generating a first magnetic field. A magnet holder retains the plurality of magnets. A first stator is disposed radially outward from the magnet holder for generating a second magnetic field. The first stator includes a plurality of stator poles separated by slots with each of the stator poles having a concentrated winding with a respective number of turns formed around each respective stator pole. A second stator is disposed radially inward from the magnet for generating a third magnetic field. The second stator has a plurality of stator poles separated by slots with each of the stator poles having a concentrated winding with a respective number of turns formed around each respective stator pole. The magnet holder and magnets retained therein are rotatable between the first stator and second stator.
摘要翻译：电机包括用于产生第一磁场的多个磁体。磁体保持器保持多个磁体。第一定子从磁体保持器径向向外设置以产生第二磁场。第一定子包括多个由槽隔开的定子极，每个定子极具有集中的绕组，每个定子极都形成有相应的匝数。第二定子从磁体径向向内设置以产生第三磁场。第二定子具有由槽间隔开的多个定子极，每个定子极具有集中的绕组，每个相应的定子极周围形成相应的匝数。保持在其中的磁体保持器和磁体可在第一定子和第二定子之间旋转。

97. 发明授权

US07649360B2 Apparatus and systems for common mode voltage-based AC fault detection, verification and/or identification 有权
标题翻译：用于基于共模电压的交流故障检测，验证和/或识别的装置和系统
公开(公告)号：US07649360B2
公开(公告)日：2010-01-19
申请号：US12016530
申请日：2008-01-18
申请人： William T. Ivan , Chandra S. Namuduri
发明人： William T. Ivan , Chandra S. Namuduri
IPC分类号： G01R31/00 , G01R31/08
CPC分类号： G01R31/006 , B60K6/46 , B60L2200/26 , G01R31/025 , G01R31/42 , Y02T10/6217
摘要： Apparatus for AC fault (ACF) detection are provided. In addition, apparatus for AC fault (ACF) detection and verification are provided. In addition, apparatus for identification of a module which is the cause of an AC fault (ACF) are provided. In one implementation, one or more of these apparatus can be combined to provide a fast, simple, low cost and reliable ACF detection, verification and/or identification circuit.
摘要翻译：提供交流故障（ACF）检测装置。此外，还提供了用于交流故障（ACF）检测和验证的装置。此外，提供了用于识别作为AC故障（ACF）的原因的模块的装置。在一个实现中，这些装置中的一个或多个可以被组合以提供快速，简单，低成本和可靠的ACF检测，验证和/或识别电路。

98. 发明申请

US20090269043A1 APPARATUS AND METHOD FOR CONTROL OF AN ACTIVE FRONT STEERING (AFS) SYSTEM 有权
标题翻译：用于控制主动前转（AFS）系统的装置和方法
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。

99. 发明申请

US20090084646A1 BI-FOLD VALVE-TYPE MAGNETORHEOLOGICAL FLUID ENERGY ABSORBING DEVICE 有权
标题翻译：双折阀式磁流变流体能量吸收装置
公开(公告)号：US20090084646A1
公开(公告)日：2009-04-02
申请号：US11864107
申请日：2007-09-28
申请人： Alan L. Browne , John C. Ulicny , Chandra S. Namuduri , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
发明人： Alan L. Browne , John C. Ulicny , Chandra S. Namuduri , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
IPC分类号： F16F9/53
CPC分类号： F16F9/537
摘要： An energy absorbing device is provided that includes a damper assembly having inner and outer concentric tubes and a piston movable within the inner tube. The damper assembly is configured to form bi-fold valve-type cavities to operatively connect an inner chamber of the inner tube with an outer chamber formed between the inner and outer tubes. A magnetorheological fluid fills the chambers and the bi-fold valve-type cavities. The magnetorheological fluid preferably contains coated magnetic particles at about 10 to 60 percent by volume. Electrical coils adjacent the bi-fold valves are selectively energizable to such that the energy absorbing device provides a tunable damping force, preferably over the entire range of velocities of the piston, especially in automotive applications.
摘要翻译：提供了一种能量吸收装置，其包括具有内部和外部同心管的阻尼器组件和可在内部管内移动的活塞。阻尼器组件被构造成形成双重阀型腔，以将内管的内腔与形成在内管和外管之间的外室可操作地连接。磁流变流体填充腔室和双折阀型空腔。磁流变液优选含有约10至60体积％的涂覆磁性颗粒。邻近双重阀的电气线圈选择性地被激励，使得能量吸收装置优选地在活塞的整个速度范围内提供可调谐阻尼力，特别是在汽车应用中。

100. 发明申请

US20080281488A1 Vehicle Roll Control Method Using Controllable Friction Force of MR Dampers 有权
标题翻译：使用MR阻尼器的可控摩擦力的车辆辊控制方法
公开(公告)号：US20080281488A1
公开(公告)日：2008-11-13
申请号：US11843318
申请日：2007-08-22
申请人： Jihan Ryu , Chandra S. Namuduri
发明人： Jihan Ryu , Chandra S. Namuduri
IPC分类号： B60G17/016
CPC分类号： B60G17/0162 , B60G17/016 , B60G17/0182 , B60G2202/23 , B60G2400/104 , B60G2400/204 , B60G2400/41 , B60G2500/102 , B60G2600/02 , B60G2600/17 , B60G2600/18 , B60G2800/012 , B60G2800/9122
摘要： A system for providing vehicle roll control that controls the friction-force of dampers provided at the wheels of the vehicle. The system includes a lateral acceleration sensor for determining the lateral acceleration of the vehicle, a steering angle sensor for determining the steering angle of the vehicle and a speed sensor for determining the speed of the vehicle. The system calculates a current control signal for one or more of the dampers based on the lateral acceleration and/or the steering angle, and uses one or both of the current control signals to control the friction-force of the inside, outside or both of the dampers.
摘要翻译：一种用于提供车辆滚动控制的系统，其控制设置在车辆的车轮处的阻尼器的摩擦力。该系统包括用于确定车辆的横向加速度的横向加速度传感器，用于确定车辆的转向角的转向角传感器和用于确定车辆速度的速度传感器。该系统基于横向加速度和/或转向角度来计算一个或多个阻尼器的电流控制信号，并且使用电流控制信号中的一个或两个来控制内部，外部或两者的摩擦力阻尼器。

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