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81. 发明授权

US07102355B1 Method, apparatus and computer-readable code for magnifying an incipient ground fault and enable quick detection of such fault 有权
标题翻译：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。

82. 发明申请

US20050235865A1 Electrical energy capture system with circuitry for blocking flow of undesirable electrical currents therein 有权
标题翻译：具有用于阻止其中不期望的电流流动的电路的电能捕获系统
公开(公告)号：US20050235865A1
公开(公告)日：2005-10-27
申请号：US11149014
申请日：2005-06-09
申请人： Ajith Kuttannair Kumar
发明人： Ajith Kuttannair Kumar
IPC分类号： B60L7/22 , B60L11/12 , B60L11/16 , B60L15/20 , B61C3/00
CPC分类号： B60L7/06 , B60K6/46 , B60L7/12 , B60L7/14 , B60L7/22 , B60L9/02 , B60L9/16 , B60L11/005 , B60L11/12 , B60L11/123 , B60L11/14 , B60L11/16 , B60L11/1801 , B60L11/1803 , B60L15/2045 , B60L2200/26 , B60L2200/40 , B60L2220/20 , B60L2240/70 , B60Y2200/14 , B61C3/00 , Y02T10/6217 , Y02T10/6269 , Y02T10/645 , Y02T10/7005 , Y02T10/7022 , Y02T10/7077 , Y02T10/7283 , Y02T10/7291 , Y02T90/16
摘要： An electrical energy capture system, as may be carried on a hybrid energy, electro-motive, self-powered traction vehicle, is provided. The system may be used for storing electrical power generated on the vehicle and for discharging the stored electrical power for use on the vehicle. The system includes circuitry connected to a plurality of electrical energy storage devices connected in parallel circuit to one another. The circuitry may be configured to establish a respective circuit path for charging and discharging electrical energy from each energy storage device with respect to a DC bus. The circuitry is further configured to block a flow of electrical current from any one of the storage devices to any of the other storage devices, thereby avoiding flow of currents that could otherwise circulate among the electrical energy storage devices due to electrical imbalances that may occur in one or more of the electrical energy storage devices.
摘要翻译：提供了可以在混合能量，电动，自动牵引车辆上承载的电能捕获系统。该系统可以用于存储在车辆上产生的电力并且用于排放存储在车辆上的电力。该系统包括连接到并联电路彼此连接的多个电能存储装置的电路。电路可以被配置为建立相对于DC总线从每个能量存储装置充电和放电电能的相应电路路径。电路还被配置为阻止从任何一个存储设备到任何其他存储设备的电流流动，从而避免由于可能发生的电气不平衡而在电能存储设备之间循环的电流的流动一个或多个电能存储装置。

83. 发明授权

US06893058B2 Railway train friction management and control system and method 有权
标题翻译：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。

84. 发明授权

US06591758B2 Hybrid energy locomotive electrical power storage system 有权
公开(公告)号：US06591758B2
公开(公告)日：2003-07-15
申请号：US10033347
申请日：2001-12-26
申请人： Ajith Kuttannair Kumar
发明人： Ajith Kuttannair Kumar
IPC分类号： B61C300
CPC分类号： B60L15/2045 , B60L7/12 , B60L7/14 , B60L7/22 , B60L9/02 , B60L9/16 , B60L11/005 , B60L11/123 , B60L11/14 , B60L11/16 , B60L11/1801 , B60L11/1803 , B60L2200/26 , B60L2220/20 , B60L2240/70 , Y02T10/6217 , Y02T10/645 , Y02T10/646 , Y02T10/7005 , Y02T10/7022 , Y02T10/7027 , Y02T10/7283 , Y02T10/7291 , Y02T90/16
摘要： A hybrid energy locomotive system having an energy storage and regeneration system. In one form, the system can be retrofitted into existing locomotives, or installed as original equipment. The energy storage and regeneration system captures dynamic braking energy, excess motor energy, and externally supplied energy and stores the captured energy in one or more energy storage subsystems, including a flywheel, a battery, an ultra-capacitor, or a combination of such subsystems. The energy storage and regeneration system can be located in a separate energy tender vehicle. The separate energy tender vehicle is optionally equipped with traction motors. An energy management system is responsive to power storage and power transfer parameters, including data indicative of present and future track profile information, to determine present and future electrical energy storage and supply requirements. The energy management system controls the storage and regeneration of energy accordingly.

85. 发明授权

US06297978B1 Bypass rectifier connection for alternator transition locomotives 失效
标题翻译：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。

86. 发明授权

US5929610A Method and apparatus for shoot-through detection and accommodation in an electric power system including a synchronous generator power source 失效
标题翻译：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。

87. 发明授权

US5712802A Thermal protection of traction inverters 失效
标题翻译：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。

88. 发明授权

US09552001B2 Thermal management system, vehicle and associated method 有权
标题翻译：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。

89. 发明授权

US09194706B2 Method and system for identifying a directional heading of a vehicle 有权
标题翻译：用于识别车辆方向标题的方法和系统
公开(公告)号：US09194706B2
公开(公告)日：2015-11-24
申请号：US13600942
申请日：2012-08-31
申请人： Ankit Sharma , Ajith Kuttannair Kumar , Vishram Vinayak Nandedkar
发明人： Ankit Sharma , Ajith Kuttannair Kumar , Vishram Vinayak Nandedkar
IPC分类号： G05D1/00 , G01C21/00 , B61L25/02 , G01C21/30
CPC分类号： G01C21/005 , B61L25/023 , B61L25/025 , B61L25/026 , B61L2205/04 , G01C21/30
摘要： A system for confirming a direction of travel of a vehicle includes a location determining system and a control unit. The location determining system is configured to be coupled to a vehicle that travels in a network of plural route segments having fixed positions. The location determining system also is configured to obtain data representative of a measured heading of the vehicle. The measured heading represents a direction of travel of the vehicle. The control unit is configured to receive a designated route segment that is at least one of selected by operator input or provided by a trip plan that designates operational settings of the vehicle for a trip. The control unit is configured to compare the measured heading of the vehicle with one or more designated headings associated with the route segments to verify whether the vehicle is actually traveling on the designated route segment.
摘要翻译：用于确认车辆行驶方向的系统包括位置确定系统和控制单元。位置确定系统被配置为耦合到在具有固定位置的多个路线段的网络中行进的车辆。位置确定系统还被配置为获得表示车辆的测量航向的数据。测量的标题表示车辆的行进方向。所述控制单元被配置为接收指定的路线段，所述指定路线段是由操作者输入选择的或通过指定用于行程的车辆的操作设置的行程计划提供的至少一个。控制单元被配置为将车辆的测量航向与与路线段相关联的一个或多个指定航向进行比较，以验证车辆是否实际上在指定路线段上行驶。

90. 发明授权

US09109517B2 Condition monitoring of mechanical drive train coupled with electrical machines 有权
标题翻译：机械传动系与电机的状态监测
公开(公告)号：US09109517B2
公开(公告)日：2015-08-18
申请号：US13047200
申请日：2011-03-14
申请人： Arijit Banerjee , Rupam Mukherjee , Arvind Kumar Tiwari , Somakumar Ramachandrapanicker , Srilatha Boyanapally , Paul Lloyd Flynn , Ajith Kuttannair Kumar
发明人： Arijit Banerjee , Rupam Mukherjee , Arvind Kumar Tiwari , Somakumar Ramachandrapanicker , Srilatha Boyanapally , Paul Lloyd Flynn , Ajith Kuttannair Kumar
IPC分类号： G06F11/30 , F02D29/06 , F01D15/10 , G01M13/02 , G05B23/02 , H02P21/14 , B60W20/00 , H02P23/14 , F02D41/28 , F02D41/14 , H02P29/02
CPC分类号： F02D29/06 , B60W20/50 , F01D15/10 , F02D2041/1432 , F02D2041/288 , F02D2200/1002 , G01M13/025 , G05B23/0224 , H02P21/20 , H02P23/14 , H02P29/0241
摘要： A method of monitoring health of a mechanical drive train is provided. The method includes obtaining voltage and current signals from at least one phase of an electrical machine coupled with the mechanical drive train. The method also includes representing the electrical machine having a non-sinusoidal flux distribution as a combination of a plurality of harmonic order sinusoidally distributed virtual electrical machines based on the obtained voltage and current signals. The method further includes determining a torque profile associated with one or more combinations of the sinusoidally distributed virtual electrical machines. Finally, the method includes detecting the presence of an anomaly in the mechanical drive train based on the torque profile or spectrum.
摘要翻译：提供了一种监测机械传动系的健康的方法。该方法包括从与机械传动系连接的电机的至少一个相位获得电压和电流信号。该方法还包括基于获得的电压和电流信号将具有非正弦通量分布的电机表示为多个谐波阶正弦分布式虚拟电机的组合。该方法还包括确定与正弦分布的虚拟电机的一个或多个组合相关联的转矩曲线。最后，该方法包括基于扭矩分布或频谱检测机械传动系中异常的存在。

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