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公开(公告)号：US06644095B2
公开(公告)日：2003-11-11
申请号：US10173269
申请日：2002-06-17
IPC分类号： G01N3326
CPC分类号： F01M11/10 , F01M11/04 , F01M11/06 , F01M2011/0475 , F16N2250/08
摘要： A continuous on-board diagnostic lubricant monitoring system and method evaluates lubricant quality and detects incipient lubricant failure due to contamination by measuring physical characteristics of the lubricant itself. The lubrication system (1) employs a diagnostic cell (27) which samples engine lubricant (EL) from an engine (2), and exposes the samples to sensors (28) which measure its physical characteristics. The senors (28) preferably include a permittivity sensor, a viscosity sensor, and a temperature sensor. Diagnostic testing based on the measurements can be carried out on-board via a controller (30) running selected algorithms or processes. A time to condemning limit for the lubricant, i.e., the time until the lubricant has degraded to given quality level, is calculated based on permittivity data received by the controller (30) from the sensors (28). Likewise, a time to condemning limit is calculated based on viscosity data. Based on the permittivity and temperature data, the controller (30) is able to detect incipient failure of the lubricant due to water or coolant contamination. Additionally, based on the monitored lubricant viscosity, the controller (30) is able to detect fuel contamination. In this manner, a superior lubricant monitoring system and method is achieved which is particularly applicable to railroad locomotives, mining machinery, and other off-highway vehicles.
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公开(公告)号：US06463796B1
公开(公告)日：2002-10-15
申请号：US09688330
申请日：2000-10-12
IPC分类号： G01M1500
CPC分类号： F01M11/10 , F01M11/04 , F01M11/06 , F01M2011/0475 , F16N2250/08
摘要： A continuous on-board diagnostic lubricant monitoring system and method evaluates lubricant quality and detects incipient lubricant failure due to contamination by measuring physical characteristics of the lubricant itself. The lubrication system (1) employs a diagnostic cell (27) which samples engine lubricant (EL) from an engine (2), and exposes the samples to sensors (28) which measure its physical characteristics. The senors (28) preferably include a permittivity sensor, a viscosity sensor, and a temperature sensor. Diagnostic testing based on the measurements can be carried out on-board via a controller (30) running selected algorithms or processes. A time to condemning limit for the lubricant, i.e., the time until the lubricant has degraded to given quality level, is calculated based on permittivity data received by the controller (30) from the sensors (28). Likewise, a time to condemning limit is calculated based on viscosity data. Based on the permittivity and temperature data, the controller (30) is able to detect incipient failure of the lubricant due to water or coolant contamination. Additionally, based on the monitored lubricant viscosity, the controller (30) is able to detect fuel contamination. In this manner, a superior lubricant monitoring system and method is achieved which is particularly applicable to railroad locomotives, mining machinery, and other off-highway vehicles.
摘要翻译： 连续的车载诊断润滑剂监测系统和方法评估润滑剂质量，并通过测量润滑剂本身的物理特性来检测由于污染引起的初始润滑剂故障。 润滑系统（1）使用从发动机（2）对发动机润滑剂（EL）进行采样的诊断单元（27），并将样品暴露于测量其物理特性的传感器（28）。 传感器（28）优选地包括介电常数传感器，粘度传感器和温度传感器。 基于测量的诊断测试可以通过运行所选算法或过程的控制器（30）在车载上进行。 基于由控制器（30）从传感器（28）接收的介电常数数据计算润滑剂的限制时间，即润滑剂已劣化到给定质量水平的时间。 同样地，根据粘度数据计算出限制时间。 基于介电常数和温度数据，控制器（30）能够检测由于水或冷却剂污染引起的润滑剂的初始故障。 另外，基于所监测的润滑剂粘度，控制器（30）能够检测燃料污染。 以这种方式，实现了特别适用于铁路机车，矿山机械和其他非公路车辆的优良的润滑剂监控系统和方法。
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公开(公告)号：US07756717B2
公开(公告)日：2010-07-13
申请号：US10277260
申请日：2002-10-22
申请人： Bhupinder Singh Dayal , John Paul Kralik , Keith A. Condran , Robert Douglas Cryer , Thomas Charles Sonney
发明人： Bhupinder Singh Dayal , John Paul Kralik , Keith A. Condran , Robert Douglas Cryer , Thomas Charles Sonney
CPC分类号： F01M1/18 , F01M2011/14
摘要： A system (10) for ensuring the quality of lubricating oil in an engine of a locomotive without the need for specialized diagnostic and fluid handling systems on the locomotive. A test portion (28) of lubricating oil is removed from the engine and is analyzed at an oil analysis center (26) to determine an oil quality parameter (32). The oil quality parameter is used as an input to a calculator (34) to determine a quantity of oil (36) that must be replaced by fresh oil during a current maintenance outage in order to ensure that the engine oil quality will remain acceptable throughout a forthcoming operating period. In this manner, a complete change-out of the lubricating oil may be delayed or avoided. The oil replacement decision and quantity is communicated to a service center (18) via a communications link such as the Internet (40) prior to the arrival of the locomotive at the service center. The used oil may be removed from the engine using a portable transfer device and mixed with fuel in a fuel storage tank for subsequent refueling of other locomotives.
摘要翻译： 一种用于确保机车的发动机中的润滑油的质量的系统（10），而不需要在机车上的专门的诊断和流体处理系统。 从发动机中除去润滑油的试验部分（28），并在油分析中心（26）进行分析，以确定油质参数（32）。 油质量参数用作计算器（34）的输入，以确定当前维护中断期间必须用新鲜油替代的油量（36），以确保发动机机油质量在整个维护中保持可接受 即将到来的经营期。 以这种方式，可以延迟或避免润滑油的完全切换。 在机车到达服务中心之前，通过诸如因特网（40）之类的通信链路将油更换决定和数量传送到服务中心（18）。 用过的油可以使用便携式转移装置从发动机上取出，并与燃料储存在燃料储罐中混合，以便随后加油其他机车。
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公开(公告)号：US07546184B2
公开(公告)日：2009-06-09
申请号：US10878758
申请日：2004-06-28
CPC分类号： F02N19/001 , F01P5/14 , F01P11/18 , F01P2005/105 , F01P2005/125 , F01P2025/04 , F02M25/0818 , F02M2025/0845
摘要： A system for overriding an EMD locomotive engine protective device which includes a low water pressure sensing device in communication with the engine cooling system for shutting down the engine when low water pressure in the engine is sensed, the override system comprising a water assist pump connected to a source of water and communicating with the protective device for supplying pressurized water to the low water pressure sensing device to maintain relatively high water pressure to prevent the device from shutting down the engine; and a controller for activating the water assist pump during start up of the engine.
摘要翻译： 一种用于覆盖EMD机车发动机保护装置的系统，其包括与发动机冷却系统连通的低水压感测装置，用于在感测到发动机中的低水压时关闭发动机，该超控系统包括一个连接到 水源并与保护装置连通，用于向低水压感测装置供应加压水以维持相对较高的水压，以防止装置关闭发动机; 以及用于在发动机启动期间启动所述辅助泵的控制器。
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