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公开(公告)号：US5647205A
公开(公告)日：1997-07-15
申请号：US530209
申请日：1995-09-19
CPC分类号： F01N9/005 , F01N11/002 , F01N13/009 , F01N2550/02 , Y02T10/47
摘要： The invention relates, in particular, to the checking of the conversion of a precatalyzer associated with internal combustion engines. The checking being carried out during the overrunning of the motor vehicle given a sufficiently long idling phase. The following criteria being evaluated singly or in combination to determine if the catalyzer is operative. The first criteria checked is the difference between the temperature downstream and upstream of the catalyzer (FIG. 2). The second criteria checked is if the temperature downstream of the catalyzer is in a predetermined range (FIG. 3). The third criteria checked is if the temperature downstream and upstream of the catalyzer exhibits a minimum difference (FIG. 4). The fourth criteria checked is if the magnitude of the temperature gradient for the temperature upstream of the catalyzer is significantly greater than the magnitude of the temperature gradient of the temperature downstream from the catalyzer.
摘要翻译： PCT No.PCT / DE94 / 00219 Sec。 371 1995年9月19日第 102（e）1995年9月19日PCT PCT 1994年3月1日PCT公布。 WO94 / 21901 PCT出版物 日期1994年9月29日本发明特别涉及检查与内燃机相关的预分析器的转化。 在机动车辆的超速期间进行的检查是给予足够长的空转阶段。 单独或组合评估以下标准以确定催化剂是否可操作。 检查的第一个标准是催化剂下游和上游的温度之间的差异（图2）。 检查的第二标准是如果催化剂下游的温度在预定范围内（图3）。 检查的第三个标准是如果催化剂的下游和上游的温度表现出最小的差异（图4）。 检查的第四个标准是如果催化剂上游温度的温度梯度的大小明显大于催化剂下游温度的温度梯度的大小。
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公开(公告)号：US5732549A
公开(公告)日：1998-03-31
申请号：US666969
申请日：1996-06-20
CPC分类号： F01N11/002 , F01N13/009 , F01N2550/02 , F01N2900/0422 , Y02T10/47
摘要： In a method for checking the conversion capability of a catalytic converter, in particular a precatalytic converter associated with internal combustion engines of motor vehicles, the checking is undertaken through the use of a temperature measurement immediately downstream of the catalytic converter. Initially the temperature at the beginning and at the end of a predetermined idling phase is measured for a predetermined number of idling phases, following an overrun phase in predetermined operating states of a motor vehicle with an internal combustion engine. Then the difference of the temperature measurements for each idling phase is formed. The sum of all of the temperature differences and the sum of the duration of the idling phases are formed and subsequently a quotient of these results is formed. This quotient determines an average gradient. The average gradient determined in this way is compared with a limiting value and the catalytic converter is recognized as defective if the predetermined limiting value is exceeded. The method may be applied to motor vehicles with internal combustion engines.
摘要翻译： 在用于检查催化转化器，特别是与机动车辆的内燃机相关联的预分解转化器的转化能力的方法中，通过使用紧邻催化转化器下游的温度测量来进行检查。 首先，在具有内燃机的机动车辆的预定操作状态的超程相之后，在预定空转阶段的开始和结束时测量温度。 然后形成每个怠速阶段的温度测量值的差异。 形成所有温度差的总和和空转阶段的持续时间之和，随后形成这些结果的商。 该商确定平均梯度。 将以这种方式确定的平均梯度与限制值进行比较，并且如果超过预定极限值，则催化转化器被认定为有缺陷的。 该方法可以应用于具有内燃机的机动车辆。
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公开(公告)号：US08000853B2
公开(公告)日：2011-08-16
申请号：US12281381
申请日：2007-02-01
IPC分类号： G01M15/04
CPC分类号： F02D41/1495 , F01N11/007 , F01N2550/02 , F02D41/0295 , F02D41/1441 , F02D2200/0814 , F02D2200/0816 , Y02T10/47
摘要： During a first driving cycle, a combustion process is controlled in at least one combustion chamber for the purpose of performing a check on an emission reduction system of an internal combustion engine. During a second driving cycle following the first cycle, a check is performed to establish whether an error in the emission reduction system was detected during the first cycle. An idle time between the first and the second cycles is determined, in the event of an error of the emission reduction system detected during the first cycle. During the second cycle, the combustion process in the at least one combustion chamber is only controlled for the purpose of the check on the emission reduction system, in the event of an error detected in the emission reduction system during the first cycle and in the event of the idle time being longer than a pre-determined repair time.
摘要翻译： 在第一驱动循环期间，为了对内燃机的排放减少系统进行检查，在至少一个燃烧室中控制燃烧过程。 在第一循环之后的第二驱动循环期间，执行检查以确定在第一循环期间是否检测到排放减少系统中的误差。 在第一周期内检测到发射减少系统的误差的情况下，确定第一和第二周期之间的空闲时间。 在第二循环期间，在第一循环期间和在事件中在发射减少系统中检测到错误的情况下，仅控制至少一个燃烧室中的燃烧过程用于检查排放减少系统 的空闲时间比预定的维修时间长。
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4.发明申请Method for Verifying the Tightness of a Tank Bleeding System without Using a Pressure Sensor 有权不使用压力传感器验证油罐出口系统密封性的方法公开(公告)号：US20090090171A1
公开(公告)日：2009-04-09
申请号：US12093558
申请日：2006-10-19
IPC分类号： G01M3/00
CPC分类号： F02M25/0809
摘要： In a method for verifying the tightness of a tank bleeding system with a tank bleeding valve, a stop valve for air-tightly closing the tank bleeding system relative to an atmosphere prevailing outside the motor vehicle, and a bistable pressure switch whose switched condition indicates whether a predefined switching pressure is exceeded or not reached in the tank bleeding system, in order to be able to determine the tightness of the tank bleeding system without using a pressure sensor, the following steps are carried out: waiting until the vehicle speed drops below a certain threshold; opening the tank bleeding valve; closing the tank bleeding valve when a negative pressure has been attained which lies below the switching pressure; measuring the duration from the time an initial pressure lies below the switching pressure until the moment the switching pressure is exceeded again; and assessing the tightness is assessed based on the measured duration.
摘要翻译： 在一种用于通过储罐泄放阀验证罐式排放系统的紧密度的方法中，用于气缸关闭相当于机动车辆外部气氛的气体泄放系统的截止阀和一个双稳态压力开关，其切换状态指示是否 在罐排出系统中超过或未达到预定切换压力，为了能够在不使用压力传感器的情况下确定罐排放系统的紧密性，执行以下步骤：等待车速降至低于 一定的门槛; 打开罐体排气阀; 当达到低于开关压力的负压时关闭罐排出阀; 测量从初始压力低于开关压力直到再次超过开关压力的时刻的持续时间; 并且基于测量的持续时间来评估紧密度的评估。
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公开(公告)号：US20090012671A1
公开(公告)日：2009-01-08
申请号：US12281381
申请日：2007-02-01
IPC分类号： F02D45/00
CPC分类号： F02D41/1495 , F01N11/007 , F01N2550/02 , F02D41/0295 , F02D41/1441 , F02D2200/0814 , F02D2200/0816 , Y02T10/47
摘要： During a first driving cycle, a combustion process is controlled in at least one combustion chamber for the purpose of performing a check on an emission reduction system of an internal combustion engine. During a second driving cycle following the first cycle, a check is performed to establish whether an error in the emission reduction system was detected during the first cycle. An idle time between the first and the second cycles is determined, in the event of an error of the emission reduction system detected during the first cycle. During the second cycle, the combustion process in the at least one combustion chamber is only controlled for the purpose of the check on the emission reduction system, in the event of an error detected in the emission reduction system during the first cycle and in the event of the idle time being longer than a pre-determined repair time.
摘要翻译： 在第一驱动循环期间，为了对内燃机的排放减少系统进行检查，在至少一个燃烧室中控制燃烧过程。 在第一循环之后的第二驱动循环期间，执行检查以确定在第一循环期间是否检测到排放减少系统中的误差。 在第一周期内检测到发射减少系统的误差的情况下，确定第一和第二周期之间的空闲时间。 在第二循环期间，在第一循环期间和在事件中在发射减少系统中检测到错误的情况下，仅控制至少一个燃烧室中的燃烧过程用于检查排放减少系统 的空闲时间比预定的维修时间长。
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6.发明授权Method for verifying the tightness of a tank bleeding system without using a pressure sensor 有权不使用压力传感器来验证油罐排气系统的密封性的方法公开(公告)号：US08127596B2
公开(公告)日：2012-03-06
申请号：US12093558
申请日：2006-10-19
IPC分类号： G01M3/26
CPC分类号： F02M25/0809
摘要： In a method for verifying the tightness of a tank bleeding system with a tank bleeding valve, a stop valve for air-tightly closing the tank bleeding system relative to an atmosphere prevailing outside the motor vehicle, and a bistable pressure switch whose switched condition indicates whether a predefined switching pressure is exceeded or not reached in the tank bleeding system, in order to be able to determine the tightness of the tank bleeding system without using a pressure sensor, the following steps are carried out: waiting until the vehicle speed drops below a certain threshold; opening the tank bleeding valve; closing the tank bleeding valve when a negative pressure has been attained which lies below the switching pressure; measuring the duration from the time an initial pressure lies below the switching pressure until the moment the switching pressure is exceeded again; and assessing the tightness is assessed based on the measured duration.
摘要翻译： 在一种用于通过储罐泄放阀验证罐式排放系统的紧密度的方法中，用于气缸关闭相当于机动车辆外部气氛的气体泄放系统的截止阀和一个双稳态压力开关，其切换状态指示是否 在罐排出系统中超过或未达到预定切换压力，为了能够在不使用压力传感器的情况下确定罐排放系统的紧密性，执行以下步骤：等待车速降至低于 一定的门槛; 打开罐体排气阀; 当达到低于开关压力的负压时关闭罐排出阀; 测量从初始压力低于开关压力直到再次超过开关压力的时刻的持续时间; 并且基于测量的持续时间来评估紧密度的评估。
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7.发明申请Method For Diagnosing Cylinder-Associated Individual Catalytic Converters Of A Multicylinder Otto Cycle Internal Combustion Engine 审中-公开用于诊断多缸奥托循环内燃机的气缸相关单个催化转化器的方法公开(公告)号：US20080092523A1
公开(公告)日：2008-04-24
申请号：US11662004
申请日：2005-08-04
申请人： Alexander Ketterer , Gerd Rosel
发明人： Alexander Ketterer , Gerd Rosel
CPC分类号： F01N11/007 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N13/011 , F01N2550/02 , F02D41/008 , F02D41/0235 , F02D41/1439 , Y02T10/22 , Y02T10/47
摘要： The invention relates to a method which is characterized in that before an active catalyst diagnosis is carried out the mixture is dynamically trimmed for all individual catalysts using a signal of a lambda sensor common to the individual catalysts. Once the mixture is successfully trimmed, the cylinder-based forced activation is adjusted in such a manner that the individual catalysts, by virtue of the charge imprinted thereon for a threshold catalyst, exceed their remaining oxygen storage capacity to such an extent that the lambda sensor is enabled to measure the storable charge. The cylinder-based lambda signals reconstructed from the sensor signal are then used to determine specific diagnostic values for every individual catalyst.
摘要翻译： 本发明涉及一种方法，其特征在于在进行活性催化剂诊断之前，使用各种催化剂共有的λ传感器的信号，对所有单独的催化剂动态修整混合物。 一旦混合物成功修整，就以这样的方式调节基于圆柱体的强制活化，使得单独的催化剂由于其上印有阈值催化剂的电荷而超过其剩余的储氧能力，使得λ传感器 可以测量可存储的电荷。 然后，使用从传感器信号重建的基于圆柱的λ信号来确定每个单独催化剂的具体诊断值。
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8.发明授权公开(公告)号：US07191771B2
公开(公告)日：2007-03-20
申请号：US10545040
申请日：2004-01-15
申请人： Alexander Ketterer , Hong Zhang
发明人： Alexander Ketterer , Hong Zhang
IPC分类号： F02D41/14
CPC分类号： F02D41/1486 , F02D41/068 , F02D41/2441 , F02D41/2454
摘要： The aim of the inventive method is to improve the emission values of an internal combustion engine during idling following a cold start. Said aim is achieved by inferring an adaptive value for the required fuel quantity from a characteristic curve in accordance with the temperature of the internal combustion engine and verifying during continuous lambda regulation whether predetermined adaptation conditions are met. If so, an adaptive value is determined from the parameters of the lambda regulator and the characteristic curve is adjusted according the newly determined adaptive value and the measured temperature of the internal combustion engine.
摘要翻译： 本发明方法的目的是在冷启动之后改善空转期间内燃机的排放值。 所述目的通过根据内燃机的温度从特性曲线推断所需燃料量的自适应值来实现，并且在连续λ调节期间验证是否满足预定的适应条件。 如果是这样，则根据λ调节器的参数确定自适应值，并且根据新确定的自适应值和内燃机的测量温度来调整特性曲线。
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公开(公告)号：US06314723B1
公开(公告)日：2001-11-13
申请号：US09536175
申请日：2000-03-27
IPC分类号： F01N300
CPC分类号： F01N9/005 , F01N11/005 , F01N11/007 , F01N2550/02 , F01N2570/16 , Y02T10/22 , Y02T10/47
摘要： In order to check the functional capability of a three-way catalytic converter of a lambda-controlled internal-combustion engine, the efficiency of the catalytic converter is determined in a conventional way by determining the oxygen storage capability of the catalytic converter. In order to be able to adjust the efficiency with regard to temperature changes, a substitute value for the temperature in the catalytic converter is calculated. Using this substitute value, the efficiency, which has been determined for the catalytic converter, is adjusted for temperature influences. The measure of the functional capability of the catalytic converter thus obtained is accurate even after non-steady-state operating phases of the internal-combustion engine when the catalytic converter is not yet isothermal.
摘要翻译： 为了检查λ控制的内燃机的三元催化转化器的功能能力，通过确定催化转化器的储氧能力，以常规方式确定催化转化器的效率。 为了能够调整温度变化的效率，计算催化转化器的温度的替代值。 使用该替代值，对于催化转化器确定的效率根据温度影响进行调节。 即使在催化转化器尚未等温时，即使在内燃机的非稳态运行阶段之后，所获得的催化转化器的功能能力的测量也是准确的。
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10.发明申请Method for Regulating the Mixture of a Multicylinder Otto Engine Comprising Cylinder-Specific Individual Catalytic Converters and a Joint Main Catalytic Converter Mounted Down-Stream of the Individual Catalytic Converters 审中-公开用于调节包含气缸特定的单独催化转化器的多气缸奥托发动机和单独催化转化器的联合主催化转化器的下游混合物的混合物的方法公开(公告)号：US20080009997A1
公开(公告)日：2008-01-10
申请号：US11662006
申请日：2005-08-05
申请人： Alexander Ketterer , Gerd Rosel
发明人： Alexander Ketterer , Gerd Rosel
IPC分类号： F02D28/00
CPC分类号： F02D41/1408 , F01N13/00 , F02D41/0082 , F02D41/0085 , F02D41/1474 , F02D2041/1409 , F02D2041/142 , F02D2200/0816
摘要： According to one embodiment of the inventive method, half the cylinders of an in-line cylinder arrangement or the entire internal combustion engine are forcibly excited cylinder-specifically in opposite direction to the other half of the cylinders in order to balance the cylinder-specific total torque. According to another embodiment of the invention, trim regulation which compensates differences between the air quantities and/or fuel quantities introduced into the individual cylinders with the aid of the signal of a joint lambda probe is done cylinder-specifically for the individual catalytic converters. The invention also relates to lambda regulation for the joint main catalytic converter mounted downstream of the cylinder-specific individual catalytic converters.
摘要翻译： 根据本发明方法的一个实施例，一直线气缸装置的气缸或整个内燃机的一半气缸被特别地与气缸的另一半相反的方向被激励，以便平衡气缸专用总量 扭矩。 根据本发明的另一个实施例，借助于接头λ探针的信号来补偿引入各个气缸的空气量和/或燃料量之间的差异的微调调整是针对各个催化转化器进行的。 本发明还涉及安装在气缸专用单独催化转化器下游的联合主催化转化器的λ调节。
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