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    METHOD AND APPARATUS FOR OPTIMIZING RAILROAD TRAIN OPERATION FOR A TRAIN INCLUDING MULTIPLE DISTRIBUTED-POWER LOCOMOTIVES
    61.
    发明申请
    METHOD AND APPARATUS FOR OPTIMIZING RAILROAD TRAIN OPERATION FOR A TRAIN INCLUDING MULTIPLE DISTRIBUTED-POWER LOCOMOTIVES 审中-公开
    用于优化火车运行的方法和装置，包括多个分布式电力机车

    公开(公告)号：US20070233335A1

    公开(公告)日：2007-10-04

    申请号：US11608257

    申请日：2006-12-08

    申请人： Ajith Kuttannair Kumar ,  Glenn Robert Shaffer ,  Brian D. Lawry ,  Wolfgang Daum

    发明人： Ajith Kuttannair Kumar ,  Glenn Robert Shaffer ,  Brian D. Lawry ,  Wolfgang Daum

    IPC分类号： G06F17/00

    CPC分类号： G05B13/021 ,  B61L3/006 ,  B61L25/025 ,  B61L25/026 ,  B61L27/0027 ,  B61L2205/04 ,  G06Q10/06 ,  G06Q10/063

    摘要： One embodiment of the invention comprises a system for operating a railway vehicle (8) comprising a lead powered unit (14/15) and a non-lead powered unit (16/17/18) during a trip along a track The system comprises a first element (65) for determining a location of the vehicle or a time from the beginning of a current trip, aa processor (62) operable to receive information from the first element (65) and an algorithm embodied within the processor (62) having access to the information to create a trip plan that optimizes performance of one or both of the lead unit (14/15) and the non-lead unit (16/17/18) in accordance with one or more operational criteria for one or more of the vehicle (8), the lead unit (14/15) and the non-lead unit (16/17/18).

    摘要翻译： 本发明的一个实施例包括一种用于在沿着轨道跳闸期间操作包括导线供电单元（14/15）和非牵引供电单元（16/17/18）的铁路车辆（8）的系统。该系统包括 一种用于确定车辆位置或从当前行程开始起的时间的第一元件（65），可操作以从第一元件（65）接收信息的处理器（62）和处理器（62）内体现的算法， 访问信息以根据一个或多个的一个或多个操作标准来创建优化一个或两个引导单元（14/15）和非引导单元（16/17/18）的性能的行程计划 （8），引导单元（14/15）和非引导单元（16/17/18）。

    Method, apparatus and computer-readable code for magnifying an incipient ground fault and enable quick detection of such fault
    62.
    发明授权
    Method, apparatus and computer-readable code for magnifying an incipient ground fault and enable quick detection of such fault 有权
    用于放大初始接地故障的方法，设备和计算机可读代码，并能够快速检测此类故障

    公开(公告)号：US07102355B1

    公开(公告)日：2006-09-05

    申请号：US11385310

    申请日：2006-03-21

    申请人： Ajith Kuttannair Kumar

    发明人： Ajith Kuttannair Kumar

    IPC分类号： G01R31/14 ,  H02H9/08

    CPC分类号： G01R31/025

    摘要： Method, apparatus and computer-readable code are provided for detecting a location of an incipient ground fault in an electrical propulsion system of a relatively large land-based vehicle, such as a locomotive. A method embodying aspects of the present invention allows to simultaneously apply a forcing function to one or more electrical devices connected to a direct current (dc) bus. The forcing function is configured to magnify (without voltage stress to such devices) an incipient ground fault that may be directly associated with a given electrical device. This enables to quickly identify the incipient ground fault and to uniquely identify the electrical device likely to be experiencing the incipient ground fault.

    摘要翻译： 提供了一种方法，装置和计算机可读代码，用于检测诸如机车的相对较大的陆基车辆的电推进系统中初始接地故障的位置。 体现本发明的方面的方法允许同时对连接到直流（dc）总线的一个或多个电气设备施加强制功能。 强制功能被配置为放大（对这种设备没有电压应力）可能与给定电气设备直接相关联的初始接地故障。 这使得能够快速识别初始接地故障并且唯一地识别可能经历初始接地故障的电气设备。

    Railway train friction management and control system and method
    64.
    发明授权
    Railway train friction management and control system and method 有权
    铁路列车摩擦管理与控制系统及方法

    公开(公告)号：US06893058B2

    公开(公告)日：2005-05-17

    申请号：US10606722

    申请日：2003-06-26

    申请人： Ajith Kuttannair Kumar ,  Vishwesh M. Palekar ,  Anthony Giammarise ,  Chi-Houng E. Lu ,  John Polley

    发明人： Ajith Kuttannair Kumar ,  Vishwesh M. Palekar ,  Anthony Giammarise ,  Chi-Houng E. Lu ,  John Polley

    IPC分类号： B61C15/10 ,  B60B39/00

    CPC分类号： B61C15/10

    摘要： A system and method for friction management for managing and controlling an application of a friction modifying agent to an area of contact between a railway wheel and a railway rail over which the wheel is traversing to selectively modify the coefficient of friction at the contact area. The system comprises a sensor for detecting a parameter relating to the operation of the railway train. A controller is responsive to the sensor and controls the application of a friction modifying agent to the rail as a function of the parameter. An applicator is responsive to the controller and applies the friction modifying agent to the area of contact between the railway wheel and rail. The invention also includes a method for railway train friction management for managing and controlling the application of friction modifying agent to an area of contact between railway wheel and railway rail over which the wheel is traversing to selectively modify the coefficient of friction at the contact area. The method comprises sensing a parameter related to the operation of the railway train and applying the friction modifying agent to the area of contact between the railway wheel and rail as a function of the sensed parameter.

    摘要翻译： 一种用于摩擦管理的系统和方法，用于管理和控制将摩擦改进剂施加到车轮横向移动的铁路车轮与铁路轨道之间的接触区域，以选择性地改变接触区域处的摩擦系数。 该系统包括用于检测与铁路列车的操作相关的参数的传感器。 作为参数的函数，控制器响应于传感器并且控制将摩擦改进剂施加到轨道上。 施加器响应于控制器并将摩擦改进剂施加到铁路车轮和轨道之间的接触区域。 本发明还包括一种用于铁路列车摩擦管理的方法，用于管理和控制摩擦改进剂在车轮横向移动的铁路车轮与铁路轨道之间的接触区域的应用，以选择性地改变接触区域的摩擦系数。 该方法包括感测与铁路车辆的操作有关的参数，并根据感测参数将摩擦改进剂施加到铁路车轮和轨道之间的接触区域。

    Bypass rectifier connection for alternator transition locomotives
    66.
    发明授权
    Bypass rectifier connection for alternator transition locomotives 失效
    用于交流发电机过渡机车的旁路整流器连接

    公开(公告)号：US06297978B1

    公开(公告)日：2001-10-02

    申请号：US09710972

    申请日：2000-11-09

    申请人： Robert E. Cronmiller ,  Ajith Kuttannair Kumar

    发明人： Robert E. Cronmiller ,  Ajith Kuttannair Kumar

    IPC分类号： H02M700

    CPC分类号： B60L11/123 ,  B60L2200/26 ,  H02M7/08 ,  H02M7/10 ,  Y02T10/6217

    摘要： A series-parallel rectifier system and methodology, employing multiple parallel rectification paths is disclosed. The system includes a dual winding AC power supply and a rectifier apparatus coupled to the AC power supply. The rectifier apparatus is comprised of rectifier legs interconnected in a parallel circuit relationship, where each leg comprises several rectifiers including a connection in series and oriented to conduct current from a negative DC bus to a positive DC bus. Bypass legs comprising two rectifiers including a connection in series and oriented so as to conduct current from said negative DC bus to said positive DC bus are added in place of redundant rectifier legs and interconnected with the AC power supply.

    摘要翻译： 公开了采用多个并联整流路径的并联整流系统和方法。 该系统包括耦合到AC电源的双绕组AC电源和整流装置。 整流装置包括以并联电路关系互连的整流器脚，其中每条支脚包括若干整流器，包括串联连接并且定向成将电流从负DC总线传导到正DC总线。 添加包括串联连接并定向以便将电流从所述负DC总线传导到所述正DC总线的两个整流器的旁路支路代替冗余整流器支路并与AC电源互连。

    Method and apparatus for shoot-through detection and accommodation in an electric power system including a synchronous generator power source
    67.
    发明授权
    Method and apparatus for shoot-through detection and accommodation in an electric power system including a synchronous generator power source 失效
    包括同步发电机电源的电力系统中的直通检测和调节方法和装置

    公开(公告)号：US5929610A

    公开(公告)日：1999-07-27

    申请号：US796308

    申请日：1997-02-07

    申请人： Ariel Friedlander ,  Bret Dwayne Worden ,  Myron Lee Smith ,  Charles Earl Cooper ,  Ajith Kuttannair Kumar

    发明人： Ariel Friedlander ,  Bret Dwayne Worden ,  Myron Lee Smith ,  Charles Earl Cooper ,  Ajith Kuttannair Kumar

    IPC分类号： H02H7/06 ,  H02H7/122

    CPC分类号： H02H7/06 ,  H02H7/1225

    摘要： A shoot-through protection system for an electric power generating system including a synchronous generator, a bridge rectifier coupled to an output of the generator for converting alternating current (AC) from the generator to direct current (DC) at a rectifier output, and at least one inverter coupled to the rectifier output for converting the DC output to a controlled frequency AC output for application to a load. The generator has a separately excited field winding in which the magnitude of field excitation controls the voltage output of the generator. A microprocessor-based controller regulates generator field excitation in a manner to control the DC output of the rectifier. The generator is protected from a shoot-through in the inverter by detecting a sustained voltage drop in the rectifier DC output and reversing generator field excitation in response to such a voltage drop to rapidly drive generator output voltage to substantially zero volts.

    摘要翻译： 一种用于发电系统的直通保护系统，包括同步发电机，耦合到发电机的输出的桥式整流器，用于将来自发电机的交流（AC）转换成整流器输出端的直流电（DC），以及在 至少一个逆变器耦合到整流器输出端，用于将DC输出转换成受控频率的AC输出以供应用于负载。 发生器具有单独激励的励磁绕组，其中励磁的幅度控制发电机的电压输出。 基于微处理器的控制器以控制整流器的直流输出的方式来调节发生器励磁。 通过检测整流器直流输出中的持续电压降和响应于这样的电压降的反向发生器励磁电流，使发电机免受逆变器中的直通，以将发电机输出电压快速驱动到基本为零伏。

    Thermal protection of traction inverters
    68.
    发明授权
    Thermal protection of traction inverters 失效
    牵引逆变器热保护

    公开(公告)号：US5712802A

    公开(公告)日：1998-01-27

    申请号：US633390

    申请日：1996-04-16

    申请人： Ajith Kuttannair Kumar ,  Peter Billey Macchiaroli

    发明人： Ajith Kuttannair Kumar ,  Peter Billey Macchiaroli

    IPC分类号： G05D23/19 ,  H05K7/20 ,  H01L23/34

    CPC分类号： H05K7/20918 ,  G05D23/1917 ,  H05K7/20945 ,  H01L2924/0002

    摘要： A method for providing thermal protection for forced air cooled power electronic semiconductors without direct measurement of semiconductor temperature, the semiconductors being mounted on a heat sink over which cooling air is blown includes the steps of computing the cooling air mass flow rate, creating an electronic model of the semiconductor/heat sink combination and estimating the semiconductor junction temperature from the mass flow rate and model. The cooling mass flow rate is determined by measuring the temperature of the cooling air prior to passage over the heat sink, measuring atmospheric pressure of the cooling air, determining the volumetric air flow rate of the cooling air and computing, from the cooling air temperature, pressure and volumetric flow rate, the cooling air mass flow rate. Power dissipation in the semiconductors is then computed and heat sink and semiconductor temperatures are estimated from power dissipation and cooling air mass flow rate. Semiconductor power dissipation is limited so as to restrict semiconductor temperature to a safe operating value.

    摘要翻译： 一种无需直接测量半导体温度的强制风冷功率电子半导体的热保护方法，安装在冷却空气吹过的散热片上的半导体包括计算冷却空气质量流量，形成电子模型的步骤 的半导体/散热器组合，并从质量流量和模型估计半导体结温度。 冷却质量流量通过在冷却空气通过之前测量冷却空气的温度来测定，测量冷却空气的大气压力，确定冷却空气的体积空气流速并从冷却空气温度计算， 压力和体积流量，冷却空气质量流量。 然后计算半导体中的功率消耗，并根据功率耗散和冷却空气质量流量来估计散热器和半导体温度。 半导体功耗受到限制，从而将半导体温度限制在安全的工作值。

    Thermal management system, vehicle and associated method
    69.
    发明授权
    Thermal management system, vehicle and associated method 有权
    热管理系统，车辆及相关方法

    公开(公告)号：US09552001B2

    公开(公告)日：2017-01-24

    申请号：US13879714

    申请日：2010-07-27

    申请人： Bertrand Bastien ,  Henry Todd Young ,  Ajith Kuttannair Kumar

    发明人： Bertrand Bastien ,  Henry Todd Young ,  Ajith Kuttannair Kumar

    IPC分类号： G05D23/19 ,  G05F1/26 ,  B60K11/04 ,  F01P7/04 ,  G06F1/26 ,  F01P5/04

    CPC分类号： G05D23/19 ,  B60K11/04 ,  F01P7/04 ,  F01P2005/046 ,  F01P2025/60 ,  G06F1/263 ,  Y02T10/84

    摘要： A system includes a cooling system having a cooling fluid for cooling an engine and a radiator fan motor; a dynamic braking system configured to supply electrical energy to the fan motor during a braking event; and a controller that is operable to direct the electrical energy from the dynamic braking system to the fan motor to cool the coolant to a predetermined minimum threshold temperature. A method includes switching a vehicle thermal management system from a first mode of operation in which the coolant is maintained at a steady operating temperature to a second mode of operation in which the coolant is cooled to a minimum threshold temperature.

    摘要翻译： 一种系统包括具有用于冷却发动机的冷却流体和散热器风扇马达的冷却系统; 动力制动系统，被配置为在制动事件期间向风扇马达提供电能; 以及控制器，其可操作以将来自动态制动系统的电能引导到风扇马达，以将冷却剂冷却至预定的最小阈值温度。 一种方法包括将车辆热管理系统从其中将冷却剂保持在稳定工作温度的第一操作模式切换到其中将冷却剂冷却至最低阈值温度的第二操作模式。