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公开(公告)号：US06857262B2
公开(公告)日：2005-02-22
申请号：US09931603
申请日：2001-08-16
申请人： Craig S. Rendahl , Theresa A. Foley
发明人： Craig S. Rendahl , Theresa A. Foley
CPC分类号： F02D41/1444 , F01N11/00 , F01N2550/02 , F02D41/1452 , F02D41/1459 , F02D2041/1468 , F02D2041/1472 , Y02T10/47
摘要： A method and system detects the function of a catalytic converter in a vehicle using data received from an open path emissions sensor. The factors considered include whether the vehicle moving on a road is operating in a closed loop operating condition, whether the vehicle is operating in a cold start mode, and the hydrocarbon and other tailpipe emissions concentrations in an exhaust stream of the vehicle as measured by the open path sensor.
摘要翻译： 一种方法和系统使用从开放路径排放传感器接收的数据来检测车辆中的催化转化器的功能。 所考虑的因素包括在道路上移动的车辆是否处于闭环操作状态，车辆是否以冷启动模式操作，以及车辆排气流中的碳氢化合物和其他排气排放浓度是否由 开路传感器
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公开(公告)号：US06789021B2
公开(公告)日：2004-09-07
申请号：US10075389
申请日：2002-02-15
申请人： Craig S. Rendahl , Theresa A. Foley
发明人： Craig S. Rendahl , Theresa A. Foley
IPC分类号： G01N2726
CPC分类号： G01N33/0027 , G01M15/102 , G01N33/0047
摘要： A method and system for measuring hydrocarbon content in a gas sample measures individual hydrocarbon concentrations in the gas sample and determines a total concentration based on the individual concentrations. The total concentration is validated and/or scaled by determining whether water interference may be occurring and either adjusting the total concentration or flagging the total concentration as invalid. The total concentration may also be adjusted to account for ambient conditions, such as temperature, pressure or relative humidity, as well as for potential double-counting of individual hydrocarbon species.
摘要翻译： 用于测量气体样品中烃含量的方法和系统测量气体样品中的单个烃浓度，并基于各个浓度确定总浓度。 总浓度通过确定是否可能发生水分干扰并调整总浓度或将总浓度标记为无效来验证和/或缩放。 总浓度也可以调整为考虑环境条件，例如温度，压力或相对湿度，以及单个碳氢化合物种类的潜在双重计数。
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3.发明授权Optical path structure for open path emissions sensing with particulate matter and lubricating oil consumption absorption methodology 有权用于具有颗粒物质和润滑油消耗吸收方法的开放路径排放感测的光路结构公开(公告)号：US06900893B2
公开(公告)日：2005-05-31
申请号：US10142061
申请日：2002-05-10
CPC分类号： G01N21/33 , G01M15/108 , G01N1/2252 , G01N21/3504 , G01N21/534 , G01N2001/2264 , G01N2021/3155 , G01N2021/3174 , G01N2021/3513 , G01N2021/3527
摘要： A device for measuring particulate matter includes a light source that emits light, a receiver positioned to receive light emitted from the light source, and a detection unit in communication with the receiver. The detection unit detects an amount of particulate matter based upon the light received by the receiver.
摘要翻译： 用于测量颗粒物质的装置包括发射光的光源，被定位成接收从光源发射的光的接收器以及与接收器通信的检测单元。 检测单元基于由接收器接收的光来检测颗粒物质的量。
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4.发明授权Method and system for determining the type of fuel used to power a vehicle 失效用于确定用于为车辆供电的燃料类型的方法和系统公开(公告)号：US06745613B2
公开(公告)日：2004-06-08
申请号：US09928720
申请日：2001-08-13
申请人： Craig S. Rendahl , Theresa A. Foley
发明人： Craig S. Rendahl , Theresa A. Foley
IPC分类号： G01M1500
CPC分类号： G01N33/2829 , G01N33/0004
摘要： A method for determining the type of fuel used by a vehicle includes receiving hydrocarbon speciation and nitrogen-oxygen compound data from an emissions sensor. The hydrocarbon speciation data is compared to one or more hydrocarbon threshold levels, and each threshold level corresponds to an anticipated fuel type. The nitrogen-oxygen compound data is compared to one or more nitrogen-oxygen compound threshold levels, and each threshold level corresponds to an anticipated fuel type. Based on the comparison of the hydrocarbon speciation and nitrogen-oxygen compound data to threshold levels, an anticipated fuel type is determined.
摘要翻译： 用于确定车辆使用的燃料类型的方法包括从排放传感器接收烃形态和氮 - 氧化合物数据。 将烃形态数据与一个或多个烃阈值水平进行比较，并且每个阈值水平对应于预期的燃料类型。 将氮 - 氧化合物数据与一个或多个氮氧化合物阈值水平进行比较，并且每个阈值水平对应于预期的燃料类型。 基于碳氢化合物形态和氮氧化合物数据与阈值水平的比较，确定预期的燃料类型。
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