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1. 发明申请

US20070001629A1 System and method for locomotive adhesion control 有权
公开(公告)号：US20070001629A1
公开(公告)日：2007-01-04
申请号：US11173299
申请日：2005-06-30
申请人： Jeremy McGarry , Somakumar Ramachandra-Panicker , Ajith Kumar , Venkatarao Ryali , Bret Worden , Jeffrey Daigle , Paul Houpt
发明人： Jeremy McGarry , Somakumar Ramachandra-Panicker , Ajith Kumar , Venkatarao Ryali , Bret Worden , Jeffrey Daigle , Paul Houpt
IPC分类号： H02P7/74
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.

2. 发明申请

US20060255656A1 System and method for dealing with ground fault conditions that can arise in an electrical propulsion system 有权
公开(公告)号：US20060255656A1
公开(公告)日：2006-11-16
申请号：US11126801
申请日：2005-05-11
申请人： Mark Linebach , Ajith Kumar , Bret Worden , Jeremy McGarry , Scott Zarella
发明人： Mark Linebach , Ajith Kumar , Bret Worden , Jeremy McGarry , Scott 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.

3. 发明申请

US20070013232A1 Method, System, and Computer Software Code for Detection and Isolation of Electrical Ground Failure and Secondary Failure 有权
标题翻译：电气接地故障和二次故障检测和隔离的方法，系统和计算机软件代码
公开(公告)号：US20070013232A1
公开(公告)日：2007-01-18
申请号：US11533397
申请日：2006-09-20
申请人： Christopher McNally , Ajith Kumar , Bret Worden , Theodore Brown
发明人： Christopher McNally , Ajith Kumar , Bret Worden , Theodore Brown
IPC分类号： B60L1/00
CPC分类号： B60L3/0023 , B60L3/0069 , B60L2200/26 , B60L2210/20 , Y02T10/725
摘要： In an off-road vehicle having a resistor grid network and a blower system as part of a braking system operable to determine at least one of a resistor failure and a blower failure, the system including a first series of resistors connected in series, a second series of resistors connected in series, a blower cross to at least one of the first series of resistors and the second series of resistors, a sensor proximate at least one of the first series of resistors, the second series of resistors, and the blower, wherein each individual resistor in the first series connected in parallel to an individual resistor in the second series, and wherein when at least one of a current value, blower speed, and voltage value changes, the grid network is disconnected.
摘要翻译：在具有电阻网格网络和作为制动系统的一部分的鼓风机系统的越野车辆中，可操作以确定电阻器故障和鼓风机故障中的至少一个，所述系统包括串联连接的第一串联电阻器，第二组一系列串联的电阻器，鼓风机与第一系列电阻器和第二系列电阻器中的至少一个交叉，靠近第一系列电阻器，第二系列电阻器和鼓风机中的至少一个的传感器，其中所述第一串联中的每个单独电阻器并联连接到所述第二系列中的单独电阻器，并且其中当电流值，鼓风机速度和电压值中的至少一个改变时，所述电网网络被断开。

4. 发明申请

US20050145438A1 Wayside rail lubrication apparatus and method 有权
标题翻译：路边轨道润滑装置及方法
公开(公告)号：US20050145438A1
公开(公告)日：2005-07-07
申请号：US11054868
申请日：2005-02-10
申请人： Ajith Kumar , Bret Worden
发明人： Ajith Kumar , Bret Worden
IPC分类号： B61K3/00
CPC分类号： B61K3/00
摘要： A wayside lubrication apparatus (10) for applying a lubricant (26) in response to the presence of a train (14) on the rail (14). To avoid excessive lubricant on the rail, lubricant may be applied in response to a second train only if a predetermined time period has elapsed between first and second trains. The amount of lubricant applied in response to the second train may be controlled by refilling a lubricant container (68) at a controlled rate. The application of lubricant may be terminated before a number of rearmost load cars (46) of the train pass the lubricant applicator (28) so that the quantity of lubricant remaining on the rail is reduced by the wheels (40) of the cars at the end of the train. This prevents the lubricant from reducing the traction capability of the drive wheels (38) of the next oncoming locomotive (16). Operation of the lubricant dispensing apparatus (22) may be bypassed by an operator-controlled bypass device (60) located on-board the train.
摘要翻译：一种用于响应于在轨道（14）上存在列车（14）而施加润滑剂（26）的路边润滑装置（10）。为了避免在轨道上产生过多的润滑剂，只有在第一列和第二列之间已经经过预定时间段时，可以响应于第二列车施加润滑剂。可以通过以受控的速率重新填充润滑剂容器（68）来控制响应于第二列车而施加的润滑剂的量。润滑剂的应用可以在火车的多个最后负载车辆（46）通过润滑剂施加器（28）之前终止，使得通过车辆的车轮（40）在轨道上残留的润滑剂的量减少火车结束这防止润滑剂降低下一个即将到来的机车（16）的驱动轮（38）的牵引能力。润滑剂分配装置（22）的操作可以由位于列车上的操作者控制的旁路装置（60）旁路。

5. 发明申请

US20050065701A1 Enhanced locomotive adhesion control 失效
标题翻译：增强机车粘附控制
公开(公告)号：US20050065701A1
公开(公告)日：2005-03-24
申请号：US10666300
申请日：2003-09-19
申请人： Ajith Kumar , Bret Worden
发明人： Ajith Kumar , Bret Worden
IPC分类号： B61C15/14 , G06F7/00
CPC分类号： B61C15/14
摘要： A method of dynamically controlling traction of a locomotive (V) having a plurality of axles (A1-A6) on each of which are mounted wheels (W) for moving the locomotive over a set of rails (R). A creep control signal (creep_n) is provided to a controller (TMTC) for each axle to move the locomotive over the rails, the creep control signal being a function of adhesion operation characteristics (tractive effort, torque, creep) for that axle. An advisory signal (ccc_n) combining values representative of the adhesion quality of the two axles is provided to the controller to maximize the tractive effort of the axle if the adhesion quality of the other axle is a maximum for the current rail conditions. This reduces the amount of time for the axle to attain its maximum tractive effort when rail conditions change.
摘要翻译：一种动态地控制具有多个轴（A1-A6）的机车（V）的牵引力的方法，其中每个车轮（A1-A6）都安装有用于使机车在一组轨道（R）上移动的轮子（W）。向每个轴的控制器（TMTC）提供蠕变控制信号（creep_n），以使机车在轨道上移动，蠕变控制信号是该轴的粘附操作特性（牵引力，扭矩，蠕变）的函数。如果两个轴的粘合质量的组合值对于当前轨道条件是最大的，则将组合两个轴的粘合质量的值的咨询信号（ccc_n）提供给控制器以使轴的牵引力最大化。这减少了当轨道条件改变时车轴达到最大牵引力的时间。

6. 发明申请

US20070046220A1 Locomotive speed determination 失效
标题翻译：机车速度确定
公开(公告)号：US20070046220A1
公开(公告)日：2007-03-01
申请号：US11209493
申请日：2005-08-23
申请人： Robert Alton , Ajith Kumar , Bret Worden
发明人： Robert Alton , Ajith Kumar , Bret Worden
IPC分类号： H02P5/00
CPC分类号： B60L3/102 , B60L2200/26
摘要： A method and system for determining a ground speed for locomotives (e.g., 12, 14) of a train (16) comprising at least two locomotives for use in controlling an operation of the train. The method includes selecting an axle of any one locomotive of the train for measuring a speed corresponding to the selected axle. The method also includes determining a ground speed for at least another locomotive of the train based on a measured speed corresponding to the selected axle of the one locomotive.
摘要翻译：一种用于确定列车（16）的机车（例如，12,14）的地面速度的方法和系统，其包括用于控制列车的操作的至少两台机车。该方法包括选择列车的任何一个机车的轴，以测量与所选轴相对应的速度。该方法还包括基于与一个机车的所选轴相对应的测量速度来确定列车的至少另一个机车的地面速度。

7. 发明申请

US20060181821A1 Electrical ground isolation and secondary failure reduction detection and isolation 有权
公开(公告)号：US20060181821A1
公开(公告)日：2006-08-17
申请号：US11401664
申请日：2006-04-11
申请人： Christopher McNally , Ajith Kumar , Bret Worden
发明人： Christopher McNally , Ajith Kumar , Bret Worden
IPC分类号： H02H9/08
CPC分类号： H02H3/16
摘要： A system for isolating electrical ground faults and secondary failures in an electrical system, the system comprising an AC ground isolation state machine for detecting and isolating an AC ground, a DC ground isolation state machine for detecting and isolating a DC ground, a component failure isolation state machine for detecting and isolating a change in a resistance, and a component failure early detection algorithm for determining a failure before using the state machines.

8. 发明授权

US08443735B2 Vehicle and truck assembly 有权
标题翻译：车辆和卡车装配
公开(公告)号：US08443735B2
公开(公告)日：2013-05-21
申请号：US12353625
申请日：2009-01-14
申请人： Ajith Kuttannair Kumar , Bret Worden , Michael Marley , Amit Iyer , Adrian Gorski
发明人： Ajith Kuttannair Kumar , Bret Worden , Michael Marley , Amit Iyer , Adrian Gorski
IPC分类号： B61D1/00
CPC分类号： B61F5/36
摘要： Truck assemblies, systems and methods are provided for transferring weight supported by various wheels, and axles. An example truck assembly may include a truck frame element, and a carrier coupled with the truck frame element. A bias may be configured to bias the carrier away from the truck frame element. An actuatable linkage arrangement may include a compliant linkage coupled with the carrier. The compliant linkage may pull the carrier against the bias in a first direction.
摘要翻译：提供卡车组件，系统和方法用于传递由各种车轮和轴支撑的重量。示例性卡车组件可以包括卡车框架元件和与卡车框架元件联接的托架。偏置可以被配置为将托架偏离卡车框架元件。可致动的联动装置可以包括与承载件联接的柔性连杆。柔性联动装置可以在第一方向上抵抗偏压拉动载体。

9. 发明授权

US08179084B2 Variable-speed-drive system for a grid blower 有权
标题翻译：用于电网鼓风机的变速驱动系统
公开(公告)号：US08179084B2
公开(公告)日：2012-05-15
申请号：US12132479
申请日：2008-06-03
申请人： Ajith Kuttannair Kumar , Bret Worden , Sudhir Kumar Gupta , Theodore Clark Brown
发明人： Ajith Kuttannair Kumar , Bret Worden , Sudhir Kumar Gupta , Theodore Clark Brown
IPC分类号： H02P27/04
CPC分类号： B61C5/02 , B60L1/003 , B60L7/02 , B60L7/10 , B60L2200/26
摘要： A drive system for a grid blower of a vehicle is provided. The system includes: an electrical bus, a grid of resistive elements connected to the electrical bus, the grid of resistive elements configured to thermally dissipate electrical power generated from braking of the vehicle, the electrical power being transmitted on the electrical bus to the grid of resistive elements, an electrical power modulation device configured to modify electrical power received from at least one of the electrical bus and the grid of resistive elements, and a grid blower motor coupled to an output of the electrical power modulation device, wherein a speed of the grid blower motor varies based on the electrical power that has been modified by the electrical power modulation device.
摘要翻译：提供了一种用于车辆的电网鼓风机的驱动系统。该系统包括：电气总线，连接到电气总线的电阻元件格栅，电阻元件格栅被配置为热散发由车辆制动产生的电力，电力在电气总线上传输到电网电力元件，被配置为修改从电气总线和电阻元件网格中的至少一个接收的电力的电力调制装置，以及耦合到电力调制装置的输出的电网鼓风电动机，其中，电网鼓风电机根据电力调制装置修改的电功率而变化。

10. 发明申请

US20120061367A1 SYSTEM AND METHOD FOR IMPROVING ADHESION 审中-公开
标题翻译：用于改善粘合的系统和方法
公开(公告)号：US20120061367A1
公开(公告)日：2012-03-15
申请号：US13300147
申请日：2011-11-18
申请人： Jeffrey Wolff , Bret Worden
发明人： Jeffrey Wolff , Bret Worden
IPC分类号： B60L1/02 , F24H3/00
CPC分类号： B61C15/08 , B61C15/107 , Y02T30/10
摘要： A system is provided for use with a rail vehicle having a wheel that travels on a rail. The system includes an air source for supplying compressed air and a heating unit fluidly coupled to the air source and configured to produce heated compressed air by heating the compressed air or heating air prior to the air being compressed by the air source, and to direct the heated compressed air onto a contact surface of the rail.
摘要翻译：提供一种与具有在轨道上行进的车轮的轨道车辆一起使用的系统。该系统包括用于供应压缩空气的空气源和流体耦合到空气源的加热单元，并且构造成通过在空气被空气源压缩之前加热压缩空气或加热空气来产生加热的压缩空气，并且引导将加热的压缩空气加热到轨道的接触表面上。

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