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21. 发明授权

US08392069B2 Method for managing faults in a magneto-rheological hydraulic power steering system 有权
标题翻译：用于管理磁流变液压动力转向系统中的故障的方法
公开(公告)号：US08392069B2
公开(公告)日：2013-03-05
申请号：US13362483
申请日：2012-01-31
申请人： Balarama V. Murty , Suresh Gopalakrishnan , Kenneth J. Shoemaker , Chandra S. Namuduri , Bradley Bezzina , Ebrahim Handy
发明人： Balarama V. Murty , Suresh Gopalakrishnan , Kenneth J. Shoemaker , Chandra S. Namuduri , Bradley Bezzina , Ebrahim Handy
IPC分类号： B62D5/30 , B62D5/04
CPC分类号： B62D5/063 , B62D5/065 , F04C14/08
摘要： A system and method for managing faults occurring in a power steering system in a vehicle is disclosed that has particular application for an MRHPS system to provide reliable functioning of the power steering system. The method includes detecting a fault condition in the MRHPS system and selecting a safe mode from a plurality of predetermined safe modes based on the fault condition. The plurality of predetermined safe modes include a normal operation mode, an engine speed follow mode, a manual mode, a fixed duty cycle mode and a voltage control mode. If a fault condition is detected, the method applies the safe mode to manage the fault condition.
摘要翻译：公开了一种用于管理在车辆中的动力转向系统中发生的故障的系统和方法，其具有用于提供动力转向系统的可靠功能的MRHPS系统的特定应用。该方法包括检测MRHPS系统中的故障状况，并根据故障状况从多个预定的安全模式中选择安全模式。多个预定的安全模式包括正常操作模式，发动机速度跟随模式，手动模式，固定占空比模式和电压控制模式。如果检测到故障条件，则采用安全模式管理故障状态。

22. 发明授权

US08272214B2 Shape memory alloy cables 有权
标题翻译：形状记忆合金电缆
公开(公告)号：US08272214B2
公开(公告)日：2012-09-25
申请号：US12397482
申请日：2009-03-04
申请人： Nilesh D. Mankame , John Andrew Shaw , Benjamin Reedlunn , Alan L. Browne , Xiujie Gao , Paul W. Alexander , Jan H. Aase , Nancy L. Johnson , Kenneth A. Strom , Sanjeev M. Naik , Chandra S. Namuduri , Robin Stevenson , William R. Rodgers , John C. Ulicny , Christopher P. Henry , Paul E. Krajewski , Ravindra Brammajyosula
发明人： Nilesh D. Mankame , John Andrew Shaw , Benjamin Reedlunn , Alan L. Browne , Xiujie Gao , Paul W. Alexander , Jan H. Aase , Nancy L. Johnson , Kenneth A. Strom , Sanjeev M. Naik , Chandra S. Namuduri , Robin Stevenson , William R. Rodgers , John C. Ulicny , Christopher P. Henry , Paul E. Krajewski , Ravindra Brammajyosula
IPC分类号： F01B29/10 , F02G1/04
CPC分类号： D07B5/00 , D07B1/0673 , D07B2201/2009 , D07B2205/3085 , Y10T428/249922 , D07B2801/10
摘要： A cable adapted for use as an actuator, adaptive structural member, or damper, includes a plurality of longitudinally inter-engaged and cooperatively functioning shape memory alloy wires.
摘要翻译：适于用作致动器，自适应结构构件或阻尼器的电缆包括多个纵向相互接合和协同工作的形状记忆合金线。

23. 发明授权

US08143766B2 Harvesting energy from vehicular vibrations using piezoelectric devices 有权
标题翻译：使用压电器件从车辆振动中收获能量
公开(公告)号：US08143766B2
公开(公告)日：2012-03-27
申请号：US12394326
申请日：2009-02-27
申请人： Chandra S. Namuduri , Yunjun Li , Timothy J. Talty , Robert B. Elliott , Nancy McMahon
发明人： Chandra S. Namuduri , Yunjun Li , Timothy J. Talty , Robert B. Elliott , Nancy McMahon
IPC分类号： H01L41/107 , H02N2/18
CPC分类号： H02N2/186 , B60G11/04 , B60G17/01941 , B60G2200/314 , B60G2206/7101 , B60G2300/60 , F16F1/06 , F16F1/18 , F16F2224/0283
摘要： An energy harvesting apparatus for deployment on a vehicle having a frame includes a spring assembly coupled to the frame and configured for compressions and extensions during vehicle travel. A piezoelectric device is mounted on the spring assembly for generating electrical energy in response to the strain imposed thereon. A rectifier is coupled to the piezoelectric device for converting AC electrical energy to DC.
摘要翻译：用于部署在具有框架的车辆上的能量收集装置包括联接到框架并被配置用于车辆行驶期间的压缩和延伸的弹簧组件。压电装置安装在弹簧组件上，以响应施加在其上的应变而产生电能。整流器耦合到压电器件，用于将AC电能转换成DC。

24. 发明授权

US08020650B2 Control of a starter-alternator during a high-voltage battery fault condition 有权
标题翻译：在高压电池故障状态下控制起动器交流发电机
公开(公告)号：US08020650B2
公开(公告)日：2011-09-20
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： B60W10/00 , B60L9/00
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。

25. 发明授权

US07686143B2 Magnetorheological device and system and method for using the same 有权
标题翻译：磁流变装置及其使用方法
公开(公告)号：US07686143B2
公开(公告)日：2010-03-30
申请号：US11974133
申请日：2007-10-11
申请人： Chandra S. Namuduri
发明人： Chandra S. Namuduri
IPC分类号： F16F9/53
CPC分类号： F16F9/535 , B60G17/0152 , B60G17/08 , B60G2200/142 , B60G2202/135 , B60G2202/312 , B60G2400/252 , B60G2400/821 , B60G2500/10 , B60G2800/162
摘要： A controllable magnetorheological (MR) damper having first, second and third portions is disclosed. The first and second portions have a translational degree of freedom therebetween, and the third portion has a rotational degree of freedom with respect to the first and second portions. The first and third portions are coupled via a translation-to-rotation converter, and the second and third portions are coupled via a magnetorheological (MR) fluid. A bearing is disposed between the first and second portions for supporting a side load therebetween, a magnetic field generator is in field communication with the magnetorheological fluid, and a signal path is in signal communication with the magnetic field generator. The third portion is rotationally responsive to translational motion between the first and second portions, the shear stress characteristic of the magnetorheological fluid is responsive to the magnetic field generator, and the magnetic field generator is controllably responsive to an excitation signal from the signal path.
摘要翻译：公开了一种具有第一，第二和第三部分的可控磁流变（MR）阻尼器。第一和第二部分之间具有平移自由度，并且第三部分具有相对于第一和第二部分的旋转自由度。第一和第三部分通过平移到旋转转换器耦合，并且第二和第三部分经由磁流变（MR）流体耦合。轴承设置在第一和第二部分之间用于支撑它们之间的侧向载荷，磁场发生器与磁流变流体现场连通，信号路径与磁场发生器信号通信。第三部分对第一和第二部分之间的平移运动进行旋转响应，磁流变流体的剪切应力特性响应于磁场发生器，并且磁场发生器可控地响应于来自信号路径的激励信号。

26. 发明申请

US20090226691A1 SHAPE MEMORY ALLOY CABLES 有权
标题翻译：形状记忆合金电缆
公开(公告)号：US20090226691A1
公开(公告)日：2009-09-10
申请号：US12397482
申请日：2009-03-04
申请人： Nilesh D. Mankame , John Andrew Shaw , Benjamin Reedlunn , Alan L. Browne , Xiujie Gao , Paul W. Alexander , Jan H. Aase , Nancy L. Johnson , Kenneth A. Strom , Sanjeev M. Naik , Chandra S. Namuduri , Robin Stevenson , William R. Rodgers , John C. Ulicny , Christopher P. Henry , Paul E. Krajewski , Ravindra Brammajyosula
发明人： Nilesh D. Mankame , John Andrew Shaw , Benjamin Reedlunn , Alan L. Browne , Xiujie Gao , Paul W. Alexander , Jan H. Aase , Nancy L. Johnson , Kenneth A. Strom , Sanjeev M. Naik , Chandra S. Namuduri , Robin Stevenson , William R. Rodgers , John C. Ulicny , Christopher P. Henry , Paul E. Krajewski , Ravindra Brammajyosula
IPC分类号： B32B1/00 , E01D19/16
CPC分类号： D07B5/00 , D07B1/0673 , D07B2201/2009 , D07B2205/3085 , Y10T428/249922 , D07B2801/10
摘要： A cable adapted for use as an actuator, adaptive structural member, or damper, includes a plurality of longitudinally inter-engaged and cooperatively functioning shape memory alloy wires.
摘要翻译：适于用作致动器，自适应结构构件或阻尼器的电缆包括多个纵向相互接合和协同工作的形状记忆合金线。

27. 发明授权

US07571040B2 Method and apparatus for controlling a magneto-rheological power steering coupling 有权
标题翻译：用于控制磁流变动力转向联轴器的方法和装置
公开(公告)号：US07571040B2
公开(公告)日：2009-08-04
申请号：US11352578
申请日：2006-02-10
申请人： Balarama V. Murty , Chandra S. Namuduri , Kenneth J. Shoemaker
发明人： Balarama V. Murty , Chandra S. Namuduri , Kenneth J. Shoemaker
IPC分类号： A01B69/00 , B62D5/04
CPC分类号： B62D5/063 , B62D5/0478 , B62D5/065
摘要： A method of controlling a magneto-rheological power steering coupling is provided. The method is to be employed by a controller and is initiated upon engine start-up. The method includes initializing calibration parameters and reading a plurality of input values. Subsequently, a hand wheel angle rate value is calculated from one of said plurality of input values. A pump speed command value is calculated as a function of at least the hand wheel angle rate value. A pump speed error value is then calculated, and a proportional-integral-derivative calculation is performed acting on the pump speed error value to determine a pulse width modulation duty cycle value. The duty cycle value is then output to a power driver to provide a control signal to the magneto-rheological power steering coupling. Also provided is control system and apparatus operable to perform the functions described hereinabove.
摘要翻译：提供了一种控制磁流变动力转向联轴器的方法。该方法由控制器使用，并且在发动机起动时启动。该方法包括初始化校准参数并读取多个输入值。随后，从所述多个输入值之一计算手轮角度速率值。泵速指令值被计算为至少手轮角速率值的函数。然后计算泵速度误差值，并根据泵速度误差值进行比例积分微分计算，以确定脉冲宽度调制占空比值。然后将占空比值输出到功率驱动器，以向磁流变动力转向联轴器提供控制信号。还提供了可操作以执行上述功能的控制系统和装置。

28. 发明申请

US20090062983A1 Suspension System with Optimized Damping Response 有权
标题翻译：具有优化阻尼响应的悬架系统
公开(公告)号：US20090062983A1
公开(公告)日：2009-03-05
申请号：US11939698
申请日：2007-11-14
申请人： Richard J. Knoll , William Golpe , Nikolai K. Moshchuk , Chandra S. Namuduri , Flavio Nardi , Jihan Ryu , Raviraj U. Nayak
发明人： Richard J. Knoll , William Golpe , Nikolai K. Moshchuk , Chandra S. Namuduri , Flavio Nardi , Jihan Ryu , Raviraj U. Nayak
IPC分类号： G06F17/00 , B62K25/00 , F16F9/512
CPC分类号： F16F9/44 , B60G17/08 , B60G2400/202 , B60G2500/104
摘要： An analytical methodology for the specification of progressive optimal compression damping of a suspension system to negotiate severe events, yet provides very acceptable ride quality and handling during routine events. In a broad aspect, the method provides a progressive optimal unconstrained damping response of the wheel assembly with respect to the body. In a preferred aspect, the method provides a progressive optimal constrained damping response of the wheel assembly with respect to the body, wherein below a predetermined velocity a conventional damper force is retained.
摘要翻译：用于规范悬架系统的渐进最佳压缩阻尼以协商严重事件的分析方法，但在常规事件期间提供非常可接受的乘坐质量和处理。在广泛的方面，该方法提供了车轮组件相对于车身的渐进最优无约束阻尼响应。在一个优选的方面，该方法提供了车轮组件相对于车身的渐进最优约束阻尼响应，其中在预定速度下保持传统的阻尼力。

29. 发明授权

US07420350B2 Methods and apparatus for an active front steering actuator 有权
标题翻译：主动前转向执行器的方法和装置
公开(公告)号：US07420350B2
公开(公告)日：2008-09-02
申请号：US11560876
申请日：2006-11-17
申请人： Chandra S. Namuduri , Robert R. Bolio , Willard A. Hall
发明人： Chandra S. Namuduri , Robert R. Bolio , Willard A. Hall
IPC分类号： G05B11/42 , G05B11/01
CPC分类号： B62D5/008 , B62D5/046
摘要： An active front steering system includes a motor controller configured to compute a position error from a commanded position value and an actual position value, and then enter one of two modes—a commutation enable mode and a commutation freeze mode—depending upon the value of this position error. The commutation freeze mode applies when the absolute value of the position error is less than a predetermined threshold, and involves sending a set of signals to the motor's phase inputs such that commutation of the motor is prevented and a substantially constant motor hold torque is produced. The commutation enable mode applies when the absolute value of the position error is greater than or equal to the predetermined threshold, and corresponds to normal commutating operating mode.
摘要翻译：主动前转向系统包括电动机控制器，该电动机控制器被配置为根据命令位置值和实际位置值计算位置误差，然后根据该值的值，输入换向启用模式和换向冻结模式中的一种位置错误。当位置误差的绝对值小于预定阈值时，应用换向冻结模式，并且涉及向电动机的相位输入发送一组信号，从而防止电动机的换向，并且产生基本上恒定的电动机保持转矩。当位置误差的绝对值大于或等于预定阈值时，适用换向启用模式，并且对应于正常换向操作模式。

30. 发明申请

US20130335026A1 BATTERY PARALLEL BALANCING CIRCUIT 有权
标题翻译：电池并联平衡电路
公开(公告)号：US20130335026A1
公开(公告)日：2013-12-19
申请号：US13495902
申请日：2012-06-13
申请人： Michael G. Reynolds , Chandra S. Namuduri , Peter T. Karlson , Daniel G. Foisy
发明人： Michael G. Reynolds , Chandra S. Namuduri , Peter T. Karlson , Daniel G. Foisy
IPC分类号： H02J7/00
CPC分类号： H02J7/0016 , Y02T10/7055
摘要： A method and device for regulating charging and discharging current through a battery pack. Two or more battery packs are connected in parallel to an inverter, such that the inverter can use grid power to charge the battery packs or the battery packs can provide AC power through the inverter. A current balancing circuit device is placed in series with each battery pack and is used to regulate the current through the battery pack so that none of the battery packs is excessively charged or discharged. The current balancing circuit includes two field effect transistors (FETs) arranged in series and in opposite directions, where one FET controls charging current and the other controls discharging current. The balancing circuit also includes a current sensor, and uses proportional-integral control to provide a signal to the FETs such that the actual current flowing through the circuit is regulated to a target current value.
摘要翻译：一种用于调节通过电池组的充电和放电电流的方法和装置。两个或多个电池组并联连接到逆变器，使得逆变器可以使用电力来对电池组充电，或者电池组可以通过逆变器提供AC电力。电流平衡电路装置与每个电池组串联放置，并且用于调节通过电池组的电流，使得电池组不会过度充电或放电。电流平衡电路包括串联和相反方向布置的两个场效应晶体管（FET），其中一个FET控制充电电流，另一个控制放电电流。平衡电路还包括电流传感器，并且使用比例积分控制来向FET提供信号，使得流过电路的实际电流被调节到目标电流值。

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