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1. 发明授权

US06804951B2 On-board diagnostic catalyst monitoring system 有权
标题翻译：车载诊断催化剂监测系统
公开(公告)号：US06804951B2
公开(公告)日：2004-10-19
申请号：US10065648
申请日：2002-11-06
申请人： David Robert Nader , Michael Igor Kluzner , Robert Eloy Gonzales , Robert Joseph Jerger , Ziad Zaghati
发明人： David Robert Nader , Michael Igor Kluzner , Robert Eloy Gonzales , Robert Joseph Jerger , Ziad Zaghati
IPC分类号： F01N300
CPC分类号： F02D41/1441 , F01N3/20 , F01N11/007 , F02D41/0235 , F02D41/1456 , F02D41/221 , F02D2041/228 , Y02T10/47
摘要： A method for determining the effectiveness of a catalyst to remove emissions from the exhaust of an internal combustion engine. The method includes measuring an upstream time history of a signal produced by an exhaust gas oxygen sensor upstream of the converter and a time history of an exhaust gas oxygen sensor disposed downstream of the converter. The time histories vary between a lean air-fuel ratio signal level and a rich air-fuel ratio signal level. A time delay is determined between the upstream time history and the downstream time history during transitions in such time histories from the lean air-fuel ratio signal level to the rich air-fuel ratio signal level. The determined time delay is compared with a reference time delay to determine the efficiency of the converter. The converter is determined to be ineffective if the converter as been determined to be potentially ineffective and the time delay is determined to be less than the reference time delay.
摘要翻译：一种用于确定催化剂去除内燃机排气排放的有效性的方法。该方法包括测量由转换器上游的废气氧传感器产生的信号的上游时间历史，以及设置在转换器下游的排气氧传感器的时间历程。时间历程在贫空燃比信号电平和浓空燃比信号电平之间变化。在这样的时间历程中从稀空燃比信号电平到浓空燃比信号电平的转变期间的上游时间历史和下游时间历史之间确定时间延迟。将确定的时间延迟与参考时间延迟进行比较以确定转换器的效率。如果转换器被确定为潜在地无效且时间延迟被确定为小于参考时间延迟，则转换器被确定为无效。

2. 发明授权

US06401452B1 Catalytic monitoring method 失效
标题翻译：催化监测方法
公开(公告)号：US06401452B1
公开(公告)日：2002-06-11
申请号：US09648055
申请日：2000-08-25
申请人： Christopher Kirk Davey , Robert Joseph Jerger , David Robert Nader , Michael Igor Kluzner
发明人： Christopher Kirk Davey , Robert Joseph Jerger , David Robert Nader , Michael Igor Kluzner
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N2550/02 , F01N2900/0421 , Y02T10/47
摘要： A catalytic monitoring method for an engine having two engine banks of which each coupled to one of two catalytic converters using first and second exhaust gas oxygen sensors respectively, upstream and downstream of one catalytic converter. Third and fourth exhaust gas oxygen sensors are respectively coupled upstream and downstream of the other catalytic converter. Switch ratios are determined for each of the engine banks based on the switching ratios of each upstream and downstream pair of exhaust gas oxygen sensors. A combination of the switch ratios is used to determine overall catalytic converter system performance.
摘要翻译：一种用于具有两个发动机组的发动机的催化监测方法，每个发动机组分别与使用第一和第二排气氧传感器的两个催化转化器中的一个分别耦合到一个催化转化器的上游和下游。第三和第四废气氧传感器分别耦合在另一个催化转化器的上游和下游。基于每个上游和下游对排气氧传感器的切换比，确定每个发动机组的开关比。使用开关比的组合来确定总体催化转化器系统性能。

3. 发明授权

US06195986B1 Method and system for monitoring a catalytic converter 失效
标题翻译：用于监测催化转化器的方法和系统
公开(公告)号：US06195986B1
公开(公告)日：2001-03-06
申请号：US09337389
申请日：1999-06-21
申请人： Christopher Kirk Davey , David Robert Nader , Michael Igor Kluzner , Robert Joseph Jerger
发明人： Christopher Kirk Davey , David Robert Nader , Michael Igor Kluzner , Robert Joseph Jerger
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/47
摘要： A method of detecting catalytic converter deterioration based on the ratio of the arc length or the number of transitions of signals from sensors upstream and downstream of the converter where ratio determination is restricted to predefined air mass ranges within corresponding predefined engine speed/load ranges in order to avoid areas of engine speed and load instability that might impair test to test repeatability of the deterioration detection.
摘要翻译：根据电弧长度或转换器上下游传感器信号的转换次数来检测催化转化器劣化的方法，其中比率确定被限制在相应的预定发动机转速/负载范围内的预定空气质量范围内以避免发动机转速和负载不稳定的区域，这可能会损害测试以测试劣化检测的可重复性。

4. 发明授权

US07481915B2 Exhaust gas temperature measurement utilizing an exhaust gas sensor 有权
标题翻译：利用废气传感器进行废气温度测量
公开(公告)号：US07481915B2
公开(公告)日：2009-01-27
申请号：US10661757
申请日：2003-09-12
申请人： Christopher K. Davey , David Robert Nader , Kenneth John Behr , Michael Igor Kluzner , Michael James Uhrich , Robert Joseph Jerger
发明人： Christopher K. Davey , David Robert Nader , Kenneth John Behr , Michael Igor Kluzner , Michael James Uhrich , Robert Joseph Jerger
IPC分类号： G01N27/407 , G01K7/16
CPC分类号： F01N11/002 , F01N3/023 , F01N2550/02 , F02D41/1441 , F02D41/1446 , F02D41/1454 , F02D41/1494 , Y02T10/47
摘要： A system for determining a temperature of exhaust gases from an engine is provided. The system includes an exhaust gas sensor having an electric heating coil. The sensor communicates with exhaust gases from the engine. The system further includes an electrical circuit for generating a signal indicative of the resistance of the heating coil when the coil is not energized. Finally, the system includes a controller receiving the signal and calculating the temperature of the exhaust gases based on the signal.
摘要翻译：提供了一种用于确定来自发动机的排气温度的系统。该系统包括具有电加热线圈的废气传感器。传感器与发动机的废气进行通讯。该系统还包括一个电路，用于当线圈未通电时产生一个指示加热线圈电阻的信号。最后，该系统包括接收信号并基于该信号计算废气温度的控制器。

5. 发明授权

US06644097B2 Method and apparatus for inferring fuel mixture 有权
公开(公告)号：US06644097B2
公开(公告)日：2003-11-11
申请号：US10208532
申请日：2002-07-30
申请人： Christopher Kirk Davey , David Robert Nader , Jeffrey Scott Hepburn , Michael Igor Kluzner , Robert Joseph Jerger
发明人： Christopher Kirk Davey , David Robert Nader , Jeffrey Scott Hepburn , Michael Igor Kluzner , Robert Joseph Jerger
IPC分类号： G01N33497
CPC分类号： G01M15/104
摘要： A method of determining the type of fuel being burned in an engine by analyzing the signal provided by a exhaust gas oxygen sensor signal is disclosed. The determination is based on the ratio of the value of certain characteristics of the signal during the lean and rich portions of the signal.

6. 发明授权

US06532734B1 On-board diagnostic catalyst monitoring system 失效
标题翻译：车载诊断催化剂监测系统
公开(公告)号：US06532734B1
公开(公告)日：2003-03-18
申请号：US10062384
申请日：2002-02-01
申请人： David Robert Nader , Michael Igor Kluzner , Michael Daniel Shane , Michael James Uhrich , Robert Joseph Jerger
发明人： David Robert Nader , Michael Igor Kluzner , Michael Daniel Shane , Michael James Uhrich , Robert Joseph Jerger
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N2550/02 , F02D41/1441 , F02D41/1456 , F02D41/1474 , F02D41/1495 , F02D41/187 , F02D2200/0404 , F02D2200/0802 , Y02T10/47
摘要： A method for determining the effectiveness of a catalyst having both first, relatively high oxidizable material provided to remove emissions from the exhaust of an internal combustion engine and a second, relatively low oxidizable material provided to remove emissions from such exhaust. The method includes measure a difference in oxygen content upstream and downstream of the catalyst while the engine is producing the exhaust to determine the effectiveness of the first material and determining the effectiveness of the second material by comparing time delay in a property of the exhaust as such exhaust passes through the catalyst. In one embodiment, the property of the exhaust is the oxygen content in such exhaust. In one embodiment, the effectiveness of the second material is measured after the first material is determined to be ineffective.
摘要翻译：一种用于确定催化剂的有效性的方法，所述催化剂具有提供用于去除来自内燃机的排气的排放物的第一相对较高的可氧化材料和提供用于去除来自这种排气的排放物的第二，较低的可氧化材料。该方法包括测量催化剂上游和下游的氧含量的差异，同时发动机产生排气以确定第一材料的有效性并且通过比较排气性质的时间延迟来确定第二材料的有效性排气通过催化剂。在一个实施例中，排气的性质是这种排气中的氧含量。在一个实施例中，在确定第一材料无效之后测量第二材料的有效性。

7. 发明授权

US06397583B1 Method for catalyst monitoring using flex fuel 失效
标题翻译：使用柔性燃料的催化剂监测方法
公开(公告)号：US06397583B1
公开(公告)日：2002-06-04
申请号：US09802810
申请日：2001-03-08
申请人： Christopher K. Davey , David Robert Nader , Michael Igor Kluzner , Paul Raymond Willette , Robert Joseph Jerger
发明人： Christopher K. Davey , David Robert Nader , Michael Igor Kluzner , Paul Raymond Willette , Robert Joseph Jerger
IPC分类号： F01N300
CPC分类号： F02D41/1495 , F01N3/101 , F01N11/007 , F01N13/009 , F01N13/0093 , F01N13/011 , F01N2550/02 , F01N2550/20 , F02D41/0007 , F02D41/1441 , F02D41/1456 , F02D2200/0611 , Y02T10/144 , Y02T10/22 , Y02T10/47
摘要： Method and system are provided for monitoring performance of a catalytic converter coupled to an exhaust of an internal combustion engine supplied with fuel from a fuel tank where the fuel can include a first fuel and second fuel in concentrations that vary from one refueling to the next. A ratio indicative of catalytic converter exhaust gas conversion efficiency is determined from signals provided by an exhaust gas sensor disposed upstream and an exhaust gas sensor disposed downstream relative to the catalytic converter, and a ratio threshold value indicative of a malfunctioning catalytic converter is adjusted in dependence on the concentration of one of the first fuel and second fuel in the fuel in the fuel tank.
摘要翻译：提供了用于监测耦合到从燃料箱供应燃料的内燃机的排气的催化转化器的性能的方法和系统，其中燃料可以包括从加油到下一个的浓度变化的第一燃料和第二燃料。催化转化器废气转化效率的比例由设置在上游的废气传感器和相对于催化转化器的下游设置的废气传感器提供的信号确定，并且依赖于调节表示故障的催化转化器的比率阈值关于燃料箱中的燃料中的第一燃料和第二燃料中的一种的浓度。

8. 发明授权

US6151889A Catalytic monitoring method 失效
标题翻译：催化监测方法
公开(公告)号：US6151889A
公开(公告)日：2000-11-28
申请号：US175111
申请日：1998-10-19
申请人： Christopher Kirk Davey , Robert Joseph Jerger , David Robert Nader , Michael Igor Kluzner
发明人： Christopher Kirk Davey , Robert Joseph Jerger , David Robert Nader , Michael Igor Kluzner
IPC分类号： F01N11/00 , F01N3/00
CPC分类号： F01N11/007 , F01N2550/02 , F01N2900/0421 , Y02T10/47
摘要： A catalytic monitoring method for an engine having two engine banks of which each coupled to one of two catalytic converters using first and second exhaust gas oxygen sensors, respectively upstream and downstream of one catalytic converter. Third and fourth exhaust gas oxygen sensors are respectively coupled upstream and downstream of the other catalytic converter. Switch ratios are determined for each of the engine banks based on the switching ratios of each upstream and downstream pair of exhaust gas oxygen sensors. A combination of the switch ratios is used to determine overall catalytic converter system performance.
摘要翻译：一种用于具有两个发动机组的发动机的催化监测方法，每个发动机组分别使用分别在一个催化转化器的上游和下游的第一和第二排气氧传感器耦合到两个催化转化器中的一个。第三和第四废气氧传感器分别耦合在另一个催化转化器的上游和下游。基于每个上游和下游对排气氧传感器的切换比，确定每个发动机组的开关比。使用开关比的组合来确定总体催化转化器系统性能。

9. 发明授权

US5974786A Adaptive time window to synchronize pre- and post-catalyst oxygen sensor switch counters 失效
标题翻译：自适应时间窗口，用于同步催化前和催化后氧传感器开关计数器
公开(公告)号：US5974786A
公开(公告)日：1999-11-02
申请号：US786597
申请日：1997-01-21
申请人： Michael I. Kluzner , Christopher Kirk Davey , David Robert Nader , Robert Joseph Jerger
发明人： Michael I. Kluzner , Christopher Kirk Davey , David Robert Nader , Robert Joseph Jerger
IPC分类号： F01N3/00 , F01N11/00
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/47
摘要： A system and method for monitoring efficiency of a catalytic converter count switches of at least one upstream sensor interposed the engine and the converter and count switches of a downstream sensor, interposed the converter and atmosphere, during a definite time period after a switch of the at least one upstream sensor to account for propagation delay of exhaust gases traveling between the at least one upstream and downstream sensor. Upstream sensor switches may optionally be counted only if predetermined entry conditions are satisfied while downstream switches occurring during respective definite time periods after an upstream switch are counted without regard to the entry conditions. A switch ratio based on the number of switches of the at least one upstream sensor and switches of the downstream sensor is used to monitor conversion efficiency of the catalyst. The system and method may include selecting a current air flow range from a plurality of air flow ranges and associating sensor switches and/or switch ratios with corresponding air flow ranges to compensate for the propagation delay. In inferred sensor signal base on dual upstream sensors may be used to trigger the definite time periods and calculate the switch ratio(s).
摘要翻译：一种用于监测催化转化器的效率的系统和方法，其中，所述催化转化器计数开关在介于所述发动机和所述转换器之间的至少一个上游传感器的计数开关以及插入所述转换器和大气的下游传感器的计数开关中，至少一个上游传感器，以解释在所述至少一个上游和下游传感器之间行进的废气的传播延迟。只有在满足预定条件的情况下，上游传感器开关可以被选择性地进行计数，而在上游切换计数之后的各个确定时间段期间发生的下游交换机不考虑进入条件。使用基于至少一个上游传感器的开关数和下游传感器的开关的开关比来监测催化剂的转换效率。系统和方法可以包括从多个空气流量范围中选择当前空气流量范围，并将传感器开关和/或开关比与相应的空气流量范围相关联以补偿传播延迟。在基于双上游传感器的推断传感器信号中，可以用来触发确定的时间段并计算开关比。

10. 发明授权

US06601382B2 Method and apparatus for determining a temperature of an emission catalyst 失效
标题翻译：用于确定排放催化剂的温度的方法和装置
公开(公告)号：US06601382B2
公开(公告)日：2003-08-05
申请号：US10003364
申请日：2001-11-15
申请人： David Robert Nader , Frank Korpics , Michael Daniel Shane
发明人： David Robert Nader , Frank Korpics , Michael Daniel Shane
IPC分类号： F01N300
CPC分类号： F01N9/005 , F01N3/20 , F01N9/00 , F02D41/0047 , F02D41/024 , F02D41/1441 , F02D41/187 , F02D2200/0402 , F02D2200/0404 , F02D2200/0804 , Y02A50/2322 , Y02T10/26 , Y02T10/47
摘要： A control system and method for controlling an engine (10) of an automotive vehicle having a catalyst (34) and controller (40) is set forth herein. The controller (40) is configured to determine a first exhaust flow rate and a second exhaust flow rate based on a flow rate of the exhaust gases. The controller is further configured to determine a first temperature (T1) of exhaust gases associated with the first exhaust flow rate based on a steady state temperature and an amount of heat transferred from the exhaust gases associated with the first exhaust flow rate to an exhaust system. The controller is further configured to determine a second temperature of exhaust gases associated with the second exhaust flow rate based on the steady state temperature. The controller is further configured to determine the catalytic converter temperature based on the first temperature and the second temperature.
摘要翻译：本文提出了一种用于控制具有催化剂（34）和控制器（40）的机动车辆的发动机（10）的控制系统和方法。控制器（40）被配置为基于废气的流量来确定第一排气流量和第二废气流量。控制器还被配置为基于稳态温度和从与第一排气流量相关联的废气传递到排气系统的热量来确定与第一排气流量相关联的废气的第一温度（T1）。控制器还被配置为基于稳态温度来确定与第二排气流量相关联的排气的第二温度。控制器还被配置为基于第一温度和第二温度来确定催化转化器温度。

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