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公开(公告)号：US20130067994A1
公开(公告)日：2013-03-21
申请号：US13233809
申请日：2011-09-15
CPC分类号： F01P11/18 , F01P2025/04 , F01P2025/64 , F01P2031/18 , F01P2050/02 , F01P2050/20
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。
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公开(公告)号：US20130067911A1
公开(公告)日：2013-03-21
申请号：US13233787
申请日：2011-09-15
CPC分类号： F02D41/0085 , F02B2039/168 , F02D41/0097 , F02D41/1498 , F02D2041/288 , F02D2200/1012 , G01M1/24 , G01M15/046
摘要： A shaft imbalance detector system (50) includes a speed sensor (52) that detects a speed of a wheel and generates a speed signal, and a controller (60) connected to the speed sensor (52). The controller (60) is configured to monitor the speed signal, where a variation in the speed signal indicates an imbalance in a shaft (20).
摘要翻译： 轴不平衡检测器系统（50）包括检测车轮速度并产生速度信号的速度传感器（52），和连接到速度传感器（52）的控制器（60）。 控制器（60）被配置为监视速度信号，其中速度信号的变化指示轴（20）中的不平衡。
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3.发明申请SYSTEM AND METHOD FOR DYNAMICALLY DETERMINING A FORCE APPLIED THROUGH A RAIL VEHICLE AXLE 审中-公开用于动态确定通过铁路车辆轴应用的力的系统和方法公开(公告)号：US20120173056A1
公开(公告)日：2012-07-05
申请号：US13419888
申请日：2012-03-14
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。
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4.发明授权Circuit and method for reducing a voltage being developed across a field winding of a synchronous machine 失效用于降低在同步电机的励磁绕组上开发的电压的电路和方法公开(公告)号：US08054050B2
公开(公告)日：2011-11-08
申请号：US12953600
申请日：2010-11-24
摘要： In an electrical power system of a diesel powered system having at least one diesel-fueled power generation unit, the electrical power system configurable in a starting mode for cranking the diesel fueled power unit, the electrical power system having a synchronous machine coupled to the diesel-fueled power generation unit, the synchronous machine having a field winding connected in a parallel relationship with a current conditioner, a method for reconfiguring a baseline circuit topology of the electrical power system for controlling a voltage being developed across the field winding including uncoupling the field winding from the parallel relationship with the current conditioner, and coupling the field winding in a series relationship with the current conditioner.
摘要翻译： 在具有至少一个柴油燃料发电单元的柴油动力系统的电力系统中，该电力系统可配置为启动柴油燃料动力单元的启动模式，该电力系统具有耦合到柴油机的同步电机 所述同步电机具有与当前调节器并联连接的励磁绕组，用于重新配置所述电力系统的基线电路拓扑的方法，用于控制横跨所述励磁绕组的正在开发的电压，所述方法包括使所述励磁绕组 从与当前的调节器的平行关系卷绕，并且将励磁绕组与当前的调节器串联连接。
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5.发明授权System and method for dealing with ground fault conditions that can arise in an electrical propulsion system 有权用于处理电力推进系统中可能出现的接地故障状况的系统和方法公开(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。
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6.发明申请System and Method for Modification of a Baseline Ballast Arrangement of a Locomotive 审中-公开机车基准镇流器布置改造系统及方法公开(公告)号：US20090031916A1
公开(公告)日：2009-02-05
申请号：US11833858
申请日：2007-08-03
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。
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7.发明授权Electrical ground isolation and secondary failure reduction detection and isolation 有权电气接地隔离和二次故障降低检测和隔离公开(公告)号：US07256974B2
公开(公告)日：2007-08-14
申请号：US11401664
申请日：2006-04-11
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.
摘要翻译： 一种用于隔离电气系统中的电接地故障和二次故障的系统，该系统包括用于检测和隔离AC地的AC接地隔离状态机，用于检测和隔离DC地的DC接地隔离状态机，部件故障隔离 用于检测和隔离电阻变化的状态机，以及用于在使用状态机之前确定故障的部件故障早期检测算法。
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8.发明授权Method and system for determining an inertially-adjusted vehicle reference speed 有权用于确定惯性调节车辆基准速度的方法和系统公开(公告)号：US06600979B1
公开(公告)日：2003-07-29
申请号：US09683874
申请日：2002-02-26
IPC分类号： B60T1300
CPC分类号： B60T13/665 , B60T8/172 , B60T17/228 , B60T2250/04
摘要： Method and system for determining a reference speed indicative of true ground speed of a vehicle having a plurality of axles are provided. The reference speed for a designated one of the axles is dynamically adjusted to account for changes in vehicular acceleration that may occur while determination of the reference speed is being performed. The method allows collecting a stream of samples over respective sampling intervals of at least one motion-indication parameter corresponding to a respective axle of the vehicle. In one aspect thereof, one may use a torque reduction rulebase configured to avoid high torque reduction, and inaccuracies in the motion-indication parameter due to high levels of creep, if any, in a wheel of the respective axle. The method further allows estimating an inertia value for the vehicle based on respective changes in tractive effort and acceleration over each sampling interval. The collected motion parameter samples may be adjusted for changes in acceleration over each sampling interval using the estimated inertial value. A signal indicative of axle speed may be limited to at least one respective limit value of rate and magnitude based on the inertially-adjusted parameter samples to, for example, provide accurate slip control.
摘要翻译： 提供了用于确定表示具有多个轴的车辆的真实地面速度的参考速度的方法和系统。 动态地调整指定的一个轴的参考速度，以考虑在执行基准速度的确定时可能发生的车辆加速度的变化。 该方法允许在对应于车辆的相应车轴的至少一个运动指示参数的相应采样间隔上收集样本流。 在其一个方面，可以使用扭矩减小规则库，其被配置为避免高扭矩减小，以及由于相应车轮的车轮中的高水平蠕变（如果有的话），运动指示参数的不准确性。 该方法还允许基于每个采样间隔上的牵引力和加速度的相应变化来估计车辆的惯性值。 可以使用估计的惯性值来针对每个采样间隔的加速度的变化来调整收集的运动参数样本。 指示轴速度的信号可以基于惯性调整的参数样本被限制到速率和幅度的至少一个相应极限值，以例如提供精确的滑动控制。
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9.发明授权
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
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。
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10.发明授权
公开(公告)号：US5892342A
公开(公告)日：1999-04-06
申请号：US845126
申请日：1997-04-21
CPC分类号： B60L3/0023 , G01R31/3277 , H02H3/05 , H02H7/06 , B60L2200/26 , H02H7/1255
摘要： A self-test system for a shorted diode protection circuit in an electric vehicle propulsion system includes a series of relays for selectively coupling a battery in circuit with a field winding of a generator, the shorted diode protection circuit being coupled in voltage sensing arrangement with the field winding. The relays are operated to induce current in forward and reverse directions through the winding in separate test stages. At each stage the winding is disconnected from the battery so that inductive reactance creates a voltage on the winding to actuate the protection circuit. A system controller records whether the protection circuit is responsive and therefore operable and alerts a vehicle operator.
摘要翻译： 用于电动车辆推进系统中的短路二极管保护电路的自检系统包括一系列用于选择性地将电路中的电池与发电机的励磁绕组耦合的继电器，短路二极管保护电路在电压感测装置中与 励磁绕组。 继电器在独立的测试阶段通过绕组在正向和反向方向上感应电流。 在每个阶段，绕组与电池断开，以便感应电抗在绕组上产生一个电压来致动保护电路。 系统控制器记录保护电路是否响应并因此可操作并且警告车辆操作者。
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