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1. 发明授权

US06564543B1 System and method for monitoring a conditioning catalyst 有权
标题翻译：用于监测调节催化剂的系统和方法
公开(公告)号：US06564543B1
公开(公告)日：2003-05-20
申请号：US09828020
申请日：2001-04-07
申请人： Daniel V. Orzel , Michael James Uhrich , Theodore Michael Kostek
发明人： Daniel V. Orzel , Michael James Uhrich , Theodore Michael Kostek
IPC分类号： F01N300
CPC分类号： F02D41/1495 , F01N11/007 , F01N13/009 , F01N13/011 , F01N13/107 , F01N2550/02 , F02D13/06 , F02D41/1443 , F02D41/1474 , F02D41/1481 , F02D41/187 , F02D41/402 , F02D2011/102 , F02D2041/001 , F02D2041/1432 , F02D2041/389 , F02D2200/0404 , F02D2200/0406 , F02D2200/0802 , F02D2200/0804 , F02D2400/08 , Y02T10/47
摘要： A system and method for monitoring a conditioning catalyst positioned upstream of an oxygen sensor used for feedback control of an internal combustion engine include comparing shapes of an upstream oxygen sensor signal and of the signal from the oxygen sensor used for feedback control of the engine while ignoring the signal amplitudes and mean values. Operational efficiency of the conditioning catalyst is determined based on a measure of the relative similarity or difference between the two signals.
摘要翻译：用于监测位于用于内燃机的反馈控制的氧传感器上游的调节催化剂的系统和方法包括比较上游氧传感器信号的形状和用于发动机反馈控制的氧传感器的信号的形状，同时忽略信号幅度和平均值。基于两个信号之间的相对相似度或差异的度量来确定调节催化剂的操作效率。

2. 发明授权

US06581371B1 Engine catalyst monitor 失效
标题翻译：发动机催化剂监测仪
公开(公告)号：US06581371B1
公开(公告)日：2003-06-24
申请号：US10079351
申请日：2002-02-20
申请人： Daniel V Orzel , Michael James Uhrich , Theodore Michael Kostek
发明人： Daniel V Orzel , Michael James Uhrich , Theodore Michael Kostek
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N11/00 , F01N13/009 , F01N13/011 , F01N13/107 , F01N2550/02 , Y02T10/47
摘要： A method for determining a condition of a catalyst disposed in an exhaust of an engine. The method includes sensing a common property of both the exhaust upstream and downstream of the catalyst; taking samples of such upstream and downstream sensed property over a period of time; accumulating the samples over the period of time; determining statistical characteristics of the sensed common property of the upstream and downstream common property; comparing the determined statistical characteristics of the sensed upstream property with the determined statistical characteristics of the downstream property to determine whether catalyst was in a proper operating condition during such period of time. With such method statistical characteristics are determined from samples as they are obtained and then once obtained, processed to determine the condition of the catalyst. Such method thereby reduces memory or data storage requirements and also reduces computational requirements.
摘要翻译：一种用于确定设置在发动机的排气中的催化剂的状态的方法。该方法包括检测催化剂上游和下游的废气的共同性质; 在一段时间内取样上游和下游检测属性; 在一段时间内积累样品; 确定所感知的上游和下游共同财产的共同财产的统计特征; 将确定的上游性质的统计特征与确定的下游性质的统计特征进行比较，以确定催化剂在这样的时间段内是否处于适当的操作状态。使用这种方法，从获得的样品中确定统计特征，然后一次获得，进行处理以确定催化剂的条件。这样的方法从而减少了存储器或数据存储要求并且还减少了计算要求。

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