公开(公告)号：US07285926B2

公开(公告)日：2007-10-23

申请号：US11173299

申请日：2005-06-30

申请人： Jeremy Thomas McGarry ,  Somakumar Ramachandra-Panicker ,  Ajith Kuttannair Kumar ,  Venkatarao Ryali ,  Bret Dwayne Worden ,  Jeffrey Louis Daigle ,  Paul Kenneth Houpt

发明人： Jeremy Thomas McGarry ,  Somakumar Ramachandra-Panicker ,  Ajith Kuttannair Kumar ,  Venkatarao Ryali ,  Bret Dwayne Worden ,  Jeffrey Louis Daigle ,  Paul Kenneth Houpt

IPC分类号： B61C15/08

CPC分类号： B60T8/1705 ,  B60L3/10 ,  B60L3/102 ,  B60L2200/26 ,  B60T8/172 ,  B60T2210/12 ,  B61C15/14 ,  Y02T10/646

摘要： A traction control system for controlling an electric traction motor drivingly coupled to a wheel of a tractive vehicle. The traction control system includes means for determining speed of the wheel, means for determining tractive effort of the wheel and a control circuitry for controlling drive signals to the motor based upon the wheel speed and tractive effort.

摘要翻译： 一种牵引控制系统，用于控制驱动地联接到牵引车辆的车轮上的电动牵引电动机。 牵引力控制系统包括用于确定车轮速度的装置，用于确定车轮的牵引力的装置和用于基于车轮速度和牵引力来控制对电动机的驱动信号的控制电路。

公开(公告)号：US07535116B2

公开(公告)日：2009-05-19

申请号：US11735620

申请日：2007-04-16

申请人： Jeffrey Louis Daigle ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden

发明人： Jeffrey Louis Daigle ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden

IPC分类号： H02P9/04

CPC分类号： B60L11/123 ,  B60L1/003 ,  B60L1/02 ,  B60L11/1864 ,  B60L2200/26 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  Y02T10/6217 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7061 ,  Y02T10/7077 ,  Y02T10/7241

摘要： A system and method for controlling a power output of an auxiliary alternator of a diesel powered system having at least one diesel-fueled power generating unit, the alternator powering at least one dynamoelectric device of the diesel powered system. The system includes an alternator coupled to the diesel-fueled power generating unit having a wound rotor for supplying electrical power to at least one dynamoelectric device of the diesel powered system. The system also includes a controller for determining a desired operating frequency of the dynamoelectric device and providing a control signal for producing the desired operating frequency. The system further includes a regulator for providing a rotor control output responsive to the control signal to control an electrical condition of the rotor for adjusting the electrical power supplied to the dynamoelectric device effective to produce the desired operating frequency.

摘要翻译： 一种用于控制具有至少一个柴油发电机组的柴油动力系统的辅助交流发电机的功率输出的系统和方法，所述交流发电机为柴油动力系统的至少一个电动装置供电。 该系统包括耦合到柴油燃料发电单元的交流发电机，其具有用于向柴油动力系统的至少一个电动装置提供电力的绕线转子。 该系统还包括用于确定电动装置的期望工作频率并提供用于产生期望工作频率的控制信号的控制器。 该系统还包括调节器，用于响应于控制信号提供转子控制输出，以控制转子的电气状态，用于调节供应给电动装置的电力，以有效地产生所需的工作频率。

公开(公告)号：US20080252182A1

公开(公告)日：2008-10-16

申请号：US11735620

申请日：2007-04-16

申请人： Jeffrey Louis Daigle ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden

发明人： Jeffrey Louis Daigle ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden

IPC分类号： H02K7/18

CPC分类号： B60L11/123 ,  B60L1/003 ,  B60L1/02 ,  B60L11/1864 ,  B60L2200/26 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  Y02T10/6217 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7061 ,  Y02T10/7077 ,  Y02T10/7241

摘要： A system and method for controlling a power output of an auxiliary alternator of a diesel powered system having at least one diesel-fueled power generating unit, the alternator powering at least one dynamoelectric device of the diesel powered system. The system includes an alternator coupled to the diesel-fueled power generating unit having a wound rotor for supplying electrical power to at least one dynamoelectric device of the diesel powered system. The system also includes a controller for determining a desired operating frequency of the dynamoelectric device and providing a control signal for producing the desired operating frequency. The system further includes a regulator for providing a rotor control output responsive to the control signal to control an electrical condition of the rotor for adjusting the electrical power supplied to the dynamoelectric device effective to produce the desired operating frequency.

摘要翻译： 一种用于控制具有至少一个柴油发电机组的柴油动力系统的辅助交流发电机的功率输出的系统和方法，所述交流发电机为柴油动力系统的至少一个电动装置供电。 该系统包括耦合到柴油燃料发电单元的交流发电机，其具有用于向柴油动力系统的至少一个电动装置提供电力的绕线转子。 该系统还包括用于确定电动装置的期望工作频率并提供用于产生期望工作频率的控制信号的控制器。 该系统还包括调节器，用于响应于控制信号提供转子控制输出，以控制转子的电气状态，用于调节供应给电动装置的电力，以有效地产生所需的工作频率。

公开(公告)号：US07928597B2

公开(公告)日：2011-04-19

申请号：US12333611

申请日：2008-12-12

申请人： Sudhir Kumar Gupta ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  Jeffrey Louis Daigle ,  Emil Nikolov ,  Dimitrios Ioannidis

发明人： Sudhir Kumar Gupta ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  Jeffrey Louis Daigle ,  Emil Nikolov ,  Dimitrios Ioannidis

IPC分类号： G05F3/06

CPC分类号： B60L1/003 ,  B60L9/005 ,  B60L2200/26 ,  B60L2270/147 ,  H03H1/0007 ,  Y10T307/398

摘要： Power system and method for providing electrical power are provided. The system includes a traction system and auxiliary equipment coupled to a power bus. The traction system includes one or more electromotive machines having a first type of stator winding that provides protection relative to voltage spikes expected at the traction stator under a first voltage level appropriate for the traction system. The auxiliary equipment includes one or more electromotive machines having a second type of stator winding that provides protection relative to spikes expected at the auxiliary stator under a second voltage level lower than the first voltage level. Inverter circuitry is coupled to drive the auxiliary equipment, and signal-conditioning circuitry is provided to attenuate voltage spikes produced by the inverter circuitry. The power bus is operated at the first voltage level, and the voltage spike attenuation is sufficient to protect the auxiliary stator.

摘要翻译： 提供了用于提供电力的电力系统和方法。 该系统包括牵引系统和耦合到电力总线的辅助设备。 该牵引系统包括一个或多个电动机，其具有第一类型的定子绕组，其相对于牵引定子处的预期的电压尖峰在适于牵引系统的第一电压水平下提供保护。 辅助设备包括具有第二类型的定子绕组的一个或多个电动机，其在低于第一电压电平的第二电压电平下相对于在辅助定子处预期的尖峰提供保护。 逆变器电路被耦合以驱动辅助设备，并且提供信号调节电路以衰减由逆变器电路产生的电压尖峰。 电源总线工作在第一电压电平，电压尖峰衰减足以保护辅助定子。

公开(公告)号：US20100148581A1

公开(公告)日：2010-06-17

申请号：US12333611

申请日：2008-12-12

申请人： Sudhir Kumar Gupta ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  Jeffrey Louis Daigle ,  Emil Nikolov ,  Dimitrios Ioannidis

发明人： Sudhir Kumar Gupta ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  Jeffrey Louis Daigle ,  Emil Nikolov ,  Dimitrios Ioannidis

IPC分类号： B60L1/00 ,  B60L3/00

CPC分类号： B60L1/003 ,  B60L9/005 ,  B60L2200/26 ,  B60L2270/147 ,  H03H1/0007 ,  Y10T307/398

摘要： Power system and method for providing electrical power are provided. The system includes a traction system and auxiliary equipment coupled to a power bus. The traction system includes one or more electromotive machines having a first type of stator winding that provides protection relative to voltage spikes expected at the traction stator under a first voltage level appropriate for the traction system. The auxiliary equipment includes one or more electromotive machines having a second type of stator winding that provides protection relative to spikes expected at the auxiliary stator under a second voltage level lower than the first voltage level. Inverter circuitry is coupled to drive the auxiliary equipment, and signal-conditioning circuitry is provided to attenuate voltage spikes produced by the inverter circuitry. The power bus is operated at the first voltage level, and the voltage spike attenuation is sufficient to protect the auxiliary stator.

摘要翻译： 提供了用于提供电力的电力系统和方法。 该系统包括牵引系统和耦合到电力总线的辅助设备。 该牵引系统包括一个或多个电动机，其具有第一类型的定子绕组，其相对于牵引定子处的预期的电压尖峰在适于牵引系统的第一电压水平下提供保护。 辅助设备包括具有第二类型的定子绕组的一个或多个电动机，其在低于第一电压电平的第二电压电平下相对于在辅助定子处预期的尖峰提供保护。 逆变器电路被耦合以驱动辅助设备，并且提供信号调节电路以衰减由逆变器电路产生的电压尖峰。 电源总线工作在第一电压电平，电压尖峰衰减足以保护辅助定子。

公开(公告)号：US20120173056A1

公开(公告)日：2012-07-05

申请号：US13419888

申请日：2012-03-14

申请人： Ajith Kuttannair Kumar ,  Bret Dwayne Worden

发明人： Ajith Kuttannair Kumar ,  Bret Dwayne Worden

IPC分类号： G05D1/02 ,  G06F19/00

CPC分类号： B61C17/12 ,  B60L2200/26 ,  B61C15/04 ,  B61C15/08 ,  B61F3/04 ,  G01G19/047 ,  G01G19/086

摘要： A system is provided for dynamically determining a force applied through a plurality of axles in a rail vehicle configured to travel along a rail track in a travel direction. The rail vehicle includes a plurality of wheels received by the plurality of axles. The system includes a controller configured to determine a respective dynamic weight shift of the plurality of wheels on the rail track based upon a dynamic factor of the rail vehicle as the rail vehicle travels along the rail track.

摘要翻译： 提供了一种系统，用于动态地确定通过轨道车辆中的多个轴施加的力，所述轨道车辆被配置为沿着行进方向沿轨道行进。 轨道车辆包括由多个车轴接收的多个车轮。 该系统包括控制器，该控制器被配置为当轨道车辆沿轨道行驶时基于轨道车辆的动态系数来确定轨道上的多个车轮的相应动态重量偏移。

公开(公告)号：US07562945B2

公开(公告)日：2009-07-21

申请号：US11782239

申请日：2007-07-24

申请人： Mark Alan Linebach ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  Jeremy T. McGarry ,  Scott Joseph Zarella

发明人： Mark Alan Linebach ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  Jeremy T. McGarry ,  Scott Joseph Zarella

IPC分类号： B60T8/34

CPC分类号： B60L9/005 ,  B60L2200/26

摘要： A method and system is provided for detecting and performing diagnostics regarding an incipient ground fault that may occur in an electrical propulsion system of a traction vehicle, such as a locomotive, transit vehicle, or off-highway vehicle. The method allows providing a first ground connection for the electrical propulsion system. This first ground connection forms a grounding path generally used by the electrical propulsion system during normal operation. The method further allows providing a second ground connection for the electrical propulsion system. This second ground connection forms a grounding path selectively usable in lieu of the first ground connection. A control strategy is defined for switching between the first ground connection and the second ground connection. A respective leakage current associated with at least one of the first and second ground connections may be monitored. Switching between the first and second ground connections may be controlled based on the monitored leakage current associated with at least one of the first and second ground connections.

摘要翻译： 提供了一种方法和系统，用于检测和执行可能在诸如机车，过境车辆或越野车辆的牵引车辆的电推进系统中可能发生的初始接地故障的诊断。 该方法允许为电推进系统提供第一接地连接。 该第一接地连接形成在正常操作期间通常由电推进系统使用的接地路径。 该方法还允许为电推进系统提供第二接地连接。 该第二接地连接形成可选择地用于代替第一接地连接的接地路径。 定义了在第一接地连接和第二接地连接之间切换的控制策略。 可以监视与第一和第二接地连接中的至少一个相关联的相应泄漏电流。 可以基于与第一和第二接地连接中的至少一个相关联的所监视的泄漏电流来控制第一和第二接地连接之间的切换。

公开(公告)号：US20090031916A1

公开(公告)日：2009-02-05

申请号：US11833858

申请日：2007-08-03

申请人： Ajith Kuttannair Kumar ,  Bret Dwayne Worden

发明人： Ajith Kuttannair Kumar ,  Bret Dwayne Worden

IPC分类号： B61C11/00 ,  F16F1/00

CPC分类号： B61C15/06 ,  B61F3/04 ,  B61F5/36

摘要： A system and method for modification of a baseline ballast arrangement of a locomotive having an overall tractive effort rating based on symmetrical distribution of weight and driving torque applied by the locomotive to the respective axles of the locomotive. The system includes a locomotive truck comprising an un-powered first axle and a powered second axle. The system also includes a first suspension assembly configured to apply to the first axle a first portion of a locomotive weight and a second suspension assembly configured to apply to the second axle a second portion of the locomotive weight different from the first portion. An amount of locomotive weight allocated from the first axle to the second axle allows modification of a baseline ballast arrangement by reducing an amount of ballast in the baseline ballast arrangement corresponding to the amount of weight allocated from the first axle to the second axle.

摘要翻译： 一种用于修改机车的基准镇流器布置的系统和方法，其具有基于对称重量分布和由机车施加到机车的相应轴的驱动转矩的总牵引力等级。 该系统包括一个包括未动力第一轴和动力第二轴的机车。 该系统还包括第一悬挂组件，其被配置为将机车重物的第一部分和第二悬架组件施加到第一轴上，第二悬架组件被配置为向第二轴施加不同于第一部分的机车重物的第二部分。 从第一车轴分配给第二车轴的机车重量允许通过减少基准镇流器布置中对应于从第一车轴分配给第二车轴的重量的量来调节基准镇流器布置。

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。

公开(公告)号：US20130206862A1

公开(公告)日：2013-08-15

申请号：US13816036

申请日：2011-07-05

申请人： Bret Dwayne Worden ,  Ajith Kuttannair Kumar ,  Matthew John Malone ,  Jennifer Lynn Coyne ,  Nikhil Subhaschandra Tambe ,  Milind Bharat Garule ,  Anubhav Kumar

发明人： Bret Dwayne Worden ,  Ajith Kuttannair Kumar ,  Matthew John Malone ,  Jennifer Lynn Coyne ,  Nikhil Subhaschandra Tambe ,  Milind Bharat Garule ,  Anubhav Kumar

IPC分类号： B61C15/10

CPC分类号： B61C15/107

摘要： A system is provided for use with, a wheeled vehicle. The system includes a media reservoir capable of holding a tractive material that includes particulates; a nozzle in fluid communication with the media reservoir; and a media valve in fluid communication with the media reservoir and the nozzle. The media valve is controllable between a first state in which the tractive material flows through the media valve and to the nozzle, and a second state in which the tractive material is prevented from flowing to the nozzle. In the first state, the nozzle receives the tractive material from the media reservoir and directs the tractive material to a contact surface such that the tractive material impacts the contact surface that is spaced from a wheel/surface interface. The system can modify the adhesion or the traction capability of the contact surface with regard to a subsequently contacting wheel.

摘要翻译： 提供一种与轮式车辆一起使用的系统。 该系统包括能够保持包括微粒的牵引材料的介质储存器; 与介质容器流体连通的喷嘴; 以及与介质容器和喷嘴流体连通的介质阀。 介质阀可以在牵引材料流过介质阀和喷嘴之间的第一状态和第二状态之间被控制，在第二状态下，防止牵引材料流向喷嘴。 在第一状态下，喷嘴从介质储存器接收牵引材料并将牵引材料引导到接触表面，使得牵引材料撞击与轮/表面界面间隔开的接触表面。 该系统可以相对于随后接触的轮来改变接触表面的附着力或牵引能力。