Controlled stop function for locomotives
    42.
    发明授权
    Controlled stop function for locomotives 失效
    机车控制停止功能

    公开(公告)号:US5992950A

    公开(公告)日:1999-11-30

    申请号:US50295

    申请日:1998-03-30

    摘要: A controlled stop system for an AC electric locomotive includes a braking effort control circuit responsive to a braking command regulating braking effort produced by AC traction motors coupled in driving relationship to wheels of the locomotive. The control circuit is responsive to a vehicle speed signal for adjusting motor operation to maintain braking effort to about zero speed. A filter processes the speed signal before application to the braking effort control circuit such that the control circuit operates as a speed regulator at zero speed to maintain the vehicle in a stopped condition.

    摘要翻译: 用于交流电力机车的控制停止系统包括制动力控制电路,该制动力控制电路响应于调节由驱动关系与机车车轮耦合的AC牵引电机产生的制动力的制动指令。 控制电路响应于车速信号来调节电动机操作,以将制动力保持在大约零速度。 滤波器在施加到制动力控制电路之前处理速度信号,使得控制电路作为零速度的速度调节器操作以将车辆保持在停止状态。

    Tractive effort system and method
    44.
    发明授权
    Tractive effort system and method 有权
    牵引力系统和方法

    公开(公告)号:US09308921B2

    公开(公告)日:2016-04-12

    申请号:US13816036

    申请日:2011-07-05

    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。

    System and method for diagnosing a reciprocating compressor
    45.
    发明授权
    System and method for diagnosing a reciprocating compressor 有权
    用于诊断往复式压缩机的系统和方法

    公开(公告)号:US08984930B2

    公开(公告)日:2015-03-24

    申请号:US13233856

    申请日:2011-09-15

    IPC分类号: F04B51/00 F04B27/24 F04B49/06

    摘要: Methods and systems are provided for a compressor including a crankcase. A condition of the compressor may be diagnosed based on a valve leak condition of the compressor based on piston motion within the crankcase. Once a diagnosis is made, appropriate remedial action can be taken to minimize severity.

    摘要翻译: 为包括曲轴箱的压缩机提供了方法和系统。 基于曲轴箱内的活塞运动,可以基于压缩机的阀泄漏状况来诊断压缩机的状况。 一旦作出诊断,就可以采取适当的补救措施来最小化严重性。

    Locomotive truck and method for distributing weight asymmetrically to axles of the truck
    46.
    发明授权
    Locomotive truck and method for distributing weight asymmetrically to axles of the truck 有权
    机车和不对称地分配卡车车轴的方法

    公开(公告)号:US08935983B2

    公开(公告)日:2015-01-20

    申请号:US13615833

    申请日:2012-09-14

    IPC分类号: B61C15/04 B61F3/04 B61F5/36

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

    摘要: A locomotive (or other rail vehicle) truck and method for distributing weight asymmetrically to axles of the truck includes a first axle of a truck uncoupled from a traction system of the locomotive and a first suspension assembly coupling the first axle to the truck for applying to the first axle a first portion of a locomotive weight. The truck also includes a second axle coupled to the traction system and a second suspension assembly coupling the second axle to the truck for applying a second portion of the locomotive weight to the second axle that is greater than the first portion so that weight is asymmetrically distributed to the first axle and the second axle so as to transmit a corresponding incremental amount of tractive effort for a given amount of a driving torque applied to the second axle via the traction system of the locomotive. The axle weight distribution involves relatively slight weight distribution compared to the nominal weights normally carried by the axles.

    摘要翻译: 用于将重量不对称地分配到卡车车轴的机车(或其它轨道车辆)卡车和方法包括:从机车的牵引系统分离的卡车的第一轴和将第一轴联接到卡车的第一悬架组件, 第一轴是机车重量的第一部分。 卡车还包括联接到牵引系统的第二轴和将第二轴联接到卡车的第二悬架组件,用于将机车重物的第二部分施加到大于第一部分的第二轴,使得重量不对称地分布 到第一轴和第二轴,以便经由机车的牵引系统对施加到第二车轴的给定量的驱动扭矩传递相应的增量的牵引力。 与通常由轴承载的标称重量相比,轴重分布涉及相对轻微的重量分布。

    Systems and methods for diagnosing an engine
    47.
    发明授权
    Systems and methods for diagnosing an engine 有权
    用于诊断发动机的系统和方法

    公开(公告)号:US08875561B2

    公开(公告)日:2014-11-04

    申请号:US13233809

    申请日:2011-09-15

    IPC分类号: G01M3/04

    摘要: Presently disclosed are methods and systems for diagnosing a coolant leak of an engine. A method may include diagnosing a coolant leak of an engine based on identified fill signatures of a measured engine coolant pressure. A vehicle system is also disclosed, including an engine, a coolant system operatively connected to the engine, a coolant pressure sensor configured to measure engine coolant pressure during operation of the engine, and a controller, including instructions configured to create a coolant pressure profile corresponding to a given engine speed, and diagnose a condition of the engine based on the coolant pressure profile.

    摘要翻译: 现在公开的是用于诊断发动机的冷却剂泄漏的方法和系统。 一种方法可以包括基于所测量的发动机冷却剂压力的识别填充特征来诊断发动机的冷却剂泄漏。 还公开了一种车辆系统,包括发动机,可操作地连接到发动机的冷却剂系统,构造成在发动机运转期间测量发动机冷却剂压力的冷却剂压力传感器,以及控制器,包括指令,其被配置为产生相应的冷却剂压力分布 到给定的发动机速度,并且基于冷却剂压力分布来诊断发动机的状况。

    PROGNOSTICS SYSTEM AND METHOD FOR FAULT DETECTION IN ELECTRICAL INSULATION
    48.
    发明申请
    PROGNOSTICS SYSTEM AND METHOD FOR FAULT DETECTION IN ELECTRICAL INSULATION 审中-公开
    电气绝缘中故障检测的预处理系统和方法

    公开(公告)号:US20140049264A1

    公开(公告)日:2014-02-20

    申请号:US14008901

    申请日:2012-03-28

    IPC分类号: G01R31/02

    摘要: A diagnostic/prognostics system for failure detection in an electrical insulation system is provided. The system includes at least two current transformers designed to detect high frequency component signals from the insulation system. The system also includes a data acquisition module coupled to the at least two current transformers, wherein the data acquisition module receives the high frequency component signals and analyzes the received high frequency component signals to identify one or more faulty components in the electrical insulation system.

    摘要翻译: 提供了一种用于电气绝缘系统故障检测的诊断/预测系统。 该系统包括至少两个设计用于检测来自绝缘系统的高频分量信号的电流互感器。 该系统还包括耦合到至少两个电流互感器的数据采集模块,其中数据采集模块接收高频分量信号并分析所接收的高频分量信号以识别电绝缘系统中的一个或多个故障组件。

    SYSTEM AND METHOD FOR DIAGNOSING A RECIPROCATING COMPRESSOR
    50.
    发明申请
    SYSTEM AND METHOD FOR DIAGNOSING A RECIPROCATING COMPRESSOR 有权
    用于诊断再生压缩机的系统和方法

    公开(公告)号:US20130071260A1

    公开(公告)日:2013-03-21

    申请号:US13233856

    申请日:2011-09-15

    IPC分类号: F04B51/00 G08B21/00 G01M3/28

    摘要: Methods and systems are provided for a compressor including a crankcase. A condition of the compressor may be diagnosed based on a valve leak condition of the compressor based on piston motion within the crankcase. Once a diagnosis is made, appropriate remedial action can be taken to minimize severity.

    摘要翻译: 为包括曲轴箱的压缩机提供了方法和系统。 基于曲轴箱内的活塞运动,可以基于压缩机的阀泄漏状况来诊断压缩机的状况。 一旦作出诊断,就可以采取适当的补救措施来最小化严重性。