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1. 发明授权

US07290525B1 Methods and apparatus for an engine speed controller using generator torque load 有权
标题翻译：使用发电机转矩负荷的发动机转速控制器的方法和装置
公开(公告)号：US07290525B1
公开(公告)日：2007-11-06
申请号：US11553487
申请日：2006-10-27
申请人： Nick S. Kapsokavathis , Chandra S. Namuduri , David W. Walters
发明人： Nick S. Kapsokavathis , Chandra S. Namuduri , David W. Walters
IPC分类号： F02D29/00
CPC分类号： F02D29/02 , F02D31/001 , F02D41/021 , F02D2200/503 , F02D2250/24 , F02P5/1555 , Y02T10/46
摘要： An engine control system for use in connection with vehicles and the like allows the engine speed to be modified using the torque load from the electrical generator. The engine is subject to a torque load from a generator coupled to the engine. The controller compares the desired speed to the actual speed of the engine to determine an error value, and the torque load of the generator is modified (increased/decreased) based on the error value such that the absolute value of the error value is reduced. The generator control is combined with and arbitrated with respect to traditional spark control methods, thus reducing the need for spark timing that is substantially retarded from the mean best timing (MBT) setting. The electrical generator can operate in either voltage control mode or field duty cycle control mode, depending upon various conditions.
摘要翻译：用于与车辆等相关联的发动机控制系统允许使用来自发电机的转矩负载来改变发动机转速。发动机受到来自耦合到发动机的发电机的转矩负载的影响。控制器将期望的速度与发动机的实际速度进行比较以确定误差值，并且基于误差值修改（增加/减少）发电机的转矩负载，使得误差值的绝对值减小。发电机控制与传统的火花控制方法结合并进行了仲裁，从而减少了从平均最佳定时（MBT）设置实质上延迟的火花正时的需要。取决于各种条件，发电机可以在电压控制模式或现场占空比控制模式下工作。

2. 发明授权

US07009365B1 Systems and methods for control of vehicle electrical generator 失效
标题翻译：车辆发电机控制系统和方法
公开(公告)号：US07009365B1
公开(公告)日：2006-03-07
申请号：US10931464
申请日：2004-08-31
申请人： Chandra S. Namuduri , Nick S. Kapsokavathis , Toufic M. Huazi , Kenneth J Shoemaker , David W. Walters
发明人： Chandra S. Namuduri , Nick S. Kapsokavathis , Toufic M. Huazi , Kenneth J Shoemaker , David W. Walters
IPC分类号： H02P7/36
CPC分类号： H02P9/305
摘要： Systems, methods and devices are described for controlling a vehicle electrical generator. A regulator for controlling a generator in response to an input signal received from a control module suitably includes a discriminator module, a processing module and a switching circuit. The discriminator determines whether the regulator is operating in voltage or torque control mode. If the input signal is a voltage control, the output generator produces a modulation signal to produce a desired voltage between two battery terminals. If the input signal is a torque control, the output generator produces one or more modulation signals (e.g. pulse width modulation signals) to control the torque of the generator. The modulation signals are applied across a field coil or other controllable element of the generator by a switching circuit that applies positive and/or negative voltage from the battery terminals as appropriate.
摘要翻译：描述了用于控制车辆发电机的系统，方法和装置。用于响应于从控制模块接收到的输入信号来控制发电机的调节器适当地包括鉴别器模块，处理模块和开关电路。鉴频器确定调节器是否在电压或转矩控制模式下工作。如果输入信号是电压控制，则输出发生器产生调制信号以在两个电池端子之间产生期望的电压。如果输入信号是转矩控制，则输出发生器产生一个或多个调制信号（例如脉宽调制信号），以控制发电机的转矩。调制信号通过适当地从电池端子施加正和/或负电压的开关电路施加在发电机的励磁线圈或其他可控元件上。

3. 发明授权

US08901934B2 Diagnosis of HEV/EV battery disconnect system 有权
标题翻译： HEV / EV电池断开系统诊断
公开(公告)号：US08901934B2
公开(公告)日：2014-12-02
申请号：US13198340
申请日：2011-08-04
申请人： Andrew J. Namou , Chandra S. Namuduri , Kenneth J. Shoemaker
发明人： Andrew J. Namou , Chandra S. Namuduri , Kenneth J. Shoemaker
IPC分类号： G01R31/327 , B60W20/00 , G01R31/00
CPC分类号： G01R31/3275 , G01R31/006 , G01R31/3278
摘要： A circuit that detects if contacts in an HV contactor have been welded or stuck closed. The circuit includes a controller that generates a short duration pulse signal that closes a driver switch and allows current flow through a coil in the HV contactor. The current flow is converted to a voltage by a sensor, where the voltage is received by the controller. The controller uses the voltage, such as by comparing the voltage to a stored representative voltage of the coil current for when the HV contactor is open, to determine whether the HV contactor is closed, and possibly welded or stuck closed, or partially closed. The sensor can be the driver switch or another device, such as a resistor.
摘要翻译：检测HV接触器中的触点是否被焊接或卡住的电路闭合。该电路包括一个控制器，该控制器产生一个短路脉冲信号，该脉冲信号关闭驱动器开关并允许电流流经HV接触器中的一个线圈。电流通过传感器转换为电压，其中控制器接收电压。控制器使用电压，例如通过将电压与线圈电流的存储的代表性电压进行比较，以便在HV接触器打开时确定HV接触器是否闭合，并且可能焊接或卡住闭合或部分闭合。传感器可以是驱动器开关或其他器件，如电阻器。

4. 发明授权

US08497664B2 High efficiency multi-phase generator 有权
标题翻译：高效率多相发电机
公开(公告)号：US08497664B2
公开(公告)日：2013-07-30
申请号：US12622198
申请日：2009-11-19
申请人： Lei Hao , Chandra S. Namuduri
发明人： Lei Hao , Chandra S. Namuduri
IPC分类号： H02P11/00 , H02P9/00
CPC分类号： H02M7/219
摘要： A generator system that includes a six-phase AC machine and an active rectifier bridge employing low on-resistance switches, such as 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 six-phase current flow. The system determines the phase-to-ground voltages of the machine for inputs to the switch control circuit. The control circuit calculates the phase-to-phase voltages from the phase-to-ground voltages. The control circuit uses a specific control scheme to determine 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，其包括六相交流电机和采用低导通电阻开关（例如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，以与六相电流流同步地切换MOSFET开关。该系统确定机器的开关控制电路输入的相对地电压。控制电路根据相对地电压来计算相间电压。控制电路使用特定的控制方案来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。

5. 发明授权

US08448952B2 Vehicle with active-regenerative suspension 有权
标题翻译：具有主动再生悬架的车辆
公开(公告)号：US08448952B2
公开(公告)日：2013-05-28
申请号：US13118922
申请日：2011-05-31
申请人： Liviu Serbu , Chandra S. Namuduri , Christopher J Mettrick , Joseph K Moore
发明人： Liviu Serbu , Chandra S. Namuduri , Christopher J Mettrick , Joseph K Moore
IPC分类号： B60G17/04 , F16F15/03
CPC分类号： B60G17/0195 , B60G2300/50 , B60G2300/60 , B60K6/20
摘要： In accordance with an exemplary embodiment, an active suspension system having a regenerative actuator is provided for an electric or hybrid electric vehicle. The system comprises a drive system including a battery mounted to a chassis and a controller coupled to the drive system. The controller also couples to a suspension system between the chassis and at least one wheel of the vehicle. The suspension system includes an actuator having an electric motor providing energy by converting linear movement of a ball screw into rotational movement of a rotor having a hollow core permitting at least a portion of the ball screw to translate within the rotor during operation of the actuator.
摘要翻译：根据示例性实施例，为电动或混合动力电动车辆提供具有再生致动器的主动悬架系统。该系统包括驱动系统，其包括安装到底盘的电池和耦合到驱动系统的控制器。控制器还耦合到底盘与车辆的至少一个车轮之间的悬挂系统。悬架系统包括致动器，其具有通过将滚珠丝杠的线性运动转换成具有中空芯的转子的旋转运动来提供能量的电动机，其允许至少一部分滚珠丝杠在致动器的操作期间在转子内平移。

6. 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。

7. 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。

8. 发明申请

US20120194040A1 High Torque Density and Low Torque Ripple Actuator System 审中-公开
标题翻译：高扭矩密度和低扭矩波纹致动器系统
公开(公告)号：US20120194040A1
公开(公告)日：2012-08-02
申请号：US13017331
申请日：2011-01-31
申请人： Lei Hao , Chandra S. Namuduri
发明人： Lei Hao , Chandra S. Namuduri
IPC分类号： H02K11/04
CPC分类号： H02K3/28 , H02K21/16
摘要： A permanent magnet electric machine drive system that includes a plurality of magnets for generating a first magnetic field and a stator is disposed radially outward from the plurality of magnets for generating a magnetic field. The stator includes a plurality of stator poles separated by slots with each respective stator pole having a concentrated winding with a respective number of turns formed around each respective stator pole. Each respective concentrated winding within the stator comprising non-overlapping phases. The concentrated windings form a dual three-phase winding configuration that includes a first set of three-balanced phase windings and a second set of three-balanced phase windings. The first set of three-balanced phase windings is phase shifted in the range of 15 to 45 electrical degrees from the second set of three-balanced phase windings for reducing the torque ripple.
摘要翻译：包括用于产生第一磁场的多个磁体和定子的永磁电机驱动系统从多个磁体径向向外设置，用于产生磁场。定子包括由槽分开的多个定子极，每个相应的定子极具有集中的绕组，其中每个相应的定子极周围形成相应的匝数。定子内的每个相应的集中绕组包括非重叠相。集中绕组形成双重三相绕组配置，其包括第一组三平衡相绕组和第二组三平衡相绕组。第三组三相绕组与第三组三相绕组的相位偏移在15至45度的范围内，以减小转矩波动。

9. 发明申请

US20120181854A1 METHOD AND APPARATUS FOR ELECTRIC POWER MANAGEMENT IN A VEHICLE 有权
标题翻译：车辆电力管理的方法与装置
公开(公告)号：US20120181854A1
公开(公告)日：2012-07-19
申请号：US13006542
申请日：2011-01-14
申请人： Suresh Gopalakrishnan , Chandra S. Namuduri , Mark C. Hoinka , Sanjeev M. Naik , Lei Hao
发明人： Suresh Gopalakrishnan , Chandra S. Namuduri , Mark C. Hoinka , Sanjeev M. Naik , Lei Hao
IPC分类号： B60L1/00
CPC分类号： B60L11/1861 , B60L11/1868 , B60L2210/10 , B60L2240/12 , B60L2240/545 , Y02T10/7016 , Y02T10/7044 , Y02T10/7066 , Y02T10/7216
摘要： An on-vehicle DC/DC converter transforms high-voltage electric power originating from an on-vehicle high-voltage source to low-voltage electric power at a regulated voltage level. The low-voltage electric power is distributed by a low-voltage bus. A method for operating the DC/DC converter includes monitoring a state of charge and a temperature of a low-voltage battery connected to the low-voltage bus, setting a DC/DC converter command to a nominal voltage level as a function of the state of charge and temperature of the low-voltage battery, monitoring a total low-voltage electric load, and adjusting the DC/DC converter command to a minimum low-voltage reference voltage when the vehicle is operating below a predetermined speed and the total low-voltage electric load is greater than a predetermined load.
摘要翻译：车载DC / DC转换器将来自车载高压源的高压电力以稳定的电压水平转换为低压电力。低压电力由低压母线分配。用于操作DC / DC转换器的方法包括监视与低压总线连接的低电压电池的充电状态和温度，将DC / DC转换器命令设置为作为状态的函数的标称电压电平的低压电池的充电和温度，监测总的低压电负载，并且当车辆运行低于预定速度时，将DC / DC转换器命令调整到最小的低电压参考电压，电压电负载大于预定负载。

10. 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。

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