公开(公告)号：US08190352B2

公开(公告)日：2012-05-29

申请号：US12538306

申请日：2009-08-10

申请人： Martin Brandt ,  Gerd Rösel

发明人： Martin Brandt ,  Gerd Rösel

IPC分类号： G06F19/00 ,  F01N11/00

CPC分类号： F01N11/00 ,  F01N9/00 ,  Y02T10/47

摘要： A first exhaust gas sensor signal (vls_up) of a first exhaust gas sensor (AS1) is detected. In addition, a second exhaust gas sensor signal (vls_down) of a second exhaust gas sensor (AS2) is detected. A relevant first estimated value of an emission of at least one exhaust gas component is determined in relation to a position of the first exhaust gas sensor (AS1) in the exhaust gas tract as a function of the first exhaust gas sensor signal (vls_up) and a relevant second estimated value of an emission of the at least one exhaust gas component is determined in relation to a position of the second exhaust gas sensor (AS2) in the exhaust gas tract as a function of the second exhaust gas sensor signal (vls_down). A conversion rate (K) of the at least one exhaust gas component is estimated as a function of a ratio of the second estimated value and the first estimated value of the determined emission. The exhaust gas catalytic converter is diagnosed as a function of the determined conversion rate (K).

摘要翻译： 检测第一废气传感器（AS1）的第一排气传感器信号（vls_up）。 此外，检测第二废气传感器（AS2）的第二废气传感器信号（vls_down）。 关于作为第一废气传感器信号（vls_up）的函数的废气道中的第一排气传感器（AS1）的位置，确定至少一个废气分量的排放的相关的第一估计值，以及 根据第二排气传感器信号（vls_down）的函数，相对于废气道中的第二废气传感器（AS2）的位置确定至少一个排气组分的排放的相关的第二估计值， 。 所述至少一个废气分量的转化率（K）被估计为所述第二估计值与所确定的排放物的第一估计值的比率的函数。 废气催化转化器被诊断为确定的转化率（K）的函数。

公开(公告)号：US08037671B2

公开(公告)日：2011-10-18

申请号：US12097162

申请日：2006-11-13

申请人： Paul Rodatz ,  Gerd Rösel

发明人： Paul Rodatz ,  Gerd Rösel

IPC分类号： F01N3/00

CPC分类号： F02D41/1454 ,  F02D41/187 ,  F02D41/2441 ,  F02D41/2454 ,  F02D41/2474 ,  F02D2041/1432 ,  G01N27/4175

摘要： A plateau phase of a test signal of an exhaust gas probe located in a catalytic converter is detected following a jump from a preset rich air/fuel ratio in a combustion chamber of one cylinder to a preset lean air/fuel ratio, the plateau phase being obtained following the jump, and the duration is determined as a storage period. A plateau phase of the test signal, which is obtained following a jump from a preset lean air/fuel ratio to a preset rich air/fuel ratio, is detected following the jump, and the duration of the plateau phase is determined as an evacuation period. An allocation rule for assigning the test signal to a detected air/fuel ratio is adjusted according to the storage period and the evacuation period. To calibrate the exhaust gas probe, the allocation rule is adapted according to a plateau value of the test signal during the plateau phase.

摘要翻译： 在从一个气缸的燃烧室中的预设浓缩空气/燃料比跃升到预设的稀薄空气/燃料比之后，检测位于催化转化器中的排气探针的测试信号的平台相， 在跳转之后获得，并且将持续时间确定为存储周期。 在跳跃之后检测到在从预设的稀薄空气/燃料比跃升到预设的浓缩空气/燃料比之后获得的测试信号的平稳相位，并且将平台期的持续时间确定为撤离时段 。 根据存储期间和撤离期间，调整用于将检测信号分配给检测出的空气/燃料比的分配规则。 为了校准排气探头，分配规则根据平台期间测试信号的平台值进行调整。

公开(公告)号：US07997064B2

公开(公告)日：2011-08-16

申请号：US11921380

申请日：2006-05-10

申请人： Tino Arlt ,  Gerd Rösel

发明人： Tino Arlt ,  Gerd Rösel

IPC分类号： F01N3/00

CPC分类号： F02D41/1454 ,  F01N3/0807 ,  F01N3/0828 ,  F01N11/00 ,  F01N11/007 ,  F01N13/009 ,  F01N2560/02 ,  F02D41/0295 ,  F02D2200/0814 ,  F02D2200/0816 ,  Y02T10/20 ,  Y02T10/47

摘要： An exhaust gas catalytic converter is laden with oxygen until it is saturated at least upstream of an exhaust gas probe. A predefined first rich air/fuel ration is set in a combustion chamber of a cylinder. A first oxygen storage capacity value is determined as a function of the measurement signal of an exhaust gas probe and the predefined first rich air/fuel ratio. The exhaust gas catalytic converter is laden with oxygen until it is saturated. A predefined second rich air/fuel ration is set in the combustion chamber of the cylinder. A second oxygen storage capacity value is determined as a function of the measurement signal of the exhaust gas probe and the predefined second rich air/fuel ration. A corrected oxygen storage capacity value is determined as a function of the first and second oxygen storage capacity values.

摘要翻译： 废气催化转化器充满氧气，直到其至少在排气探针的上游饱和。 在气缸的燃烧室中设置预定义的第一浓空气/燃料比。 根据排气探头的测量信号和预先确定的第一浓空气/燃料比确定第一储氧容量值。 废气催化转化器充满氧气直至饱和。 预定义的第二浓空气/燃料比设置在气缸的燃烧室中。 根据排气探针的测量信号和预定义的第二浓空气/燃料比来确定第二储氧容量值。 作为第一和第二储氧容量值的函数确定校正的储氧容量值。

公开(公告)号：US20110113751A1

公开(公告)日：2011-05-19

申请号：US12946043

申请日：2010-11-15

申请人： Tino Arlt ,  Krzysztof Korbel ,  Gerd Rösel

发明人： Tino Arlt ,  Krzysztof Korbel ,  Gerd Rösel

IPC分类号： F01N11/00

CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2560/026 ,  Y02T10/47

摘要： An exhaust catalyst is charged with oxygen until saturated. A given first rich air/fuel ratio (LAM1_SP) is set in a combustion chamber of a cylinder. A first oxygen storage capacity value (OSC1) is determined depending on the measured signals (MS1, MS2) from first and second exhaust probes. The exhaust catalyst is charged with oxygen until saturated. A given second rich air/fuel ratio is set in the combustion chamber of the cylinder. A second oxygen storage capacity value (OSC2) is determined depending on the measured signal from the first and second exhaust probe. A corrected oxygen storage capacity value (OSC_COR) is determined depending on the first and second oxygen storage capacity values (OSC1, OSC2).

摘要翻译： 排气催化剂充满氧气直至饱和。 给定的第一浓空气/燃料比（LAM1_SP）设置在气缸的燃烧室中。 取决于来自第一和第二排气探针的测量信号（MS1，MS2）确定第一储氧容量值（OSC1）。 排气催化剂充满氧气直至饱和。 给定的第二浓空气/燃料比设置在气缸的燃烧室中。 取决于来自第一和第二排气探针的测量信号确定第二储氧容量值（OSC2）。 根据第一和第二储氧容量值（OSC1，OSC2）确定校正的储氧容量值（OSC_COR）。

公开(公告)号：US20110041819A1

公开(公告)日：2011-02-24

申请号：US12936728

申请日：2009-03-02

申请人： Paul Rodatz ,  Gerd Rösel

发明人： Paul Rodatz ,  Gerd Rösel

IPC分类号： F02D41/00

CPC分类号： F02D41/1441 ,  F02D41/1482 ,  F02D41/1483 ,  F02D41/1495 ,  F02D41/2454 ,  F02D41/2467

摘要： An internal combustion engine has at least one cylinder, with which an injection valve for metering fuel is associated and an exhaust system with an exhaust gas catalytic converter. A first exhaust gas probe is disposed upstream of or in the exhaust gas catalytic converter, and a second exhaust gas probe is downstream. A lambda controller determines a regulating variable as a function of the first probe and a control variable acting on a fuel mass to be metered using the injection valve. A trim regulator determines a regulating variable thereof as a function of the second probe and the first trim control variable thereof as a function of a P regulator component and the second trim control variable thereof as a function of an I regulator component. A function of a predetermined evaluation of the first trim control variable decides whether the second trim control variable is adapted.

摘要翻译： 内燃机具有至少一个气缸，用于计量燃料的喷射阀通过该气缸与具有排气催化转化器的排气系统连通。 第一废气探针设置在排气催化转化器的上游或第二排气探针的下游。 λ控制器确定作为第一探针的函数的调节变量和作用在使用注射阀计量的燃料质量的控制变量。 调节调节器根据作为I调节器部件的函数的作为P调节器部件的函数和作为I调节器部件的函数的函数的第二调谐器和第一调节控制变量，将调节变量确定为第二探头和第一调节控制变量的函数。 第一微调控制变量的预定评估的函数决定是否适应第二微调控制变量。

公开(公告)号：US07886588B2

公开(公告)日：2011-02-15

申请号：US10590788

申请日：2004-12-06

申请人： Wolf-Dieter Pöhmerer ,  Volker Renz ,  Gerd Rösel ,  Milos Tichy

发明人： Wolf-Dieter Pöhmerer ,  Volker Renz ,  Gerd Rösel ,  Milos Tichy

IPC分类号： G01M15/10

CPC分类号： F01N11/007 ,  F01N2430/06 ,  F02D41/0295 ,  F02D41/1441 ,  F02D2200/0814 ,  F02D2200/0816 ,  Y02T10/47

摘要： The invention relates to a method for determining the actual oxygen load of a 3-path catalyst of a lambda-controlled internal combustion engine, whereby a value for the actual oxygen load is calculated from the signal of a pre-catalyst lambda probe and the measured air mass flow rate by integration over time, whereby the post-catalyst lambda probe is initialized when the signal is interrupted.

摘要翻译： 本发明涉及一种用于确定λ控制的内燃机的3路催化剂的实际氧负荷的方法，由此根据催化剂前的λ探针的信号计算实际氧负荷的值， 空气质量流量随时间积分，由此当信号中断时，催化剂后的λ探针被初始化。

公开(公告)号：US07849671B2

公开(公告)日：2010-12-14

申请号：US11794070

申请日：2005-11-08

申请人： Tino Arlt ,  Krzysztof Korbel ,  Gerd Rösel

发明人： Tino Arlt ,  Krzysztof Korbel ,  Gerd Rösel

IPC分类号： F01N3/00

CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2560/026 ,  Y02T10/47

摘要： An exhaust catalyst is charged with oxygen until saturated. A given first rich air/fuel ratio is set in a combustion chamber of a cylinder. A first oxygen storage capacity value is determined depending on the measured signals from first and second exhaust probes. The exhaust catalyst is charged with oxygen until saturated. A given second rich air/fuel ratio is set in the combustion chamber of the cylinder. A second oxygen storage capacity value is determined depending on the measured signal from the first and second exhaust probe. A corrected oxygen storage capacity value is determined depending on the first and second oxygen storage capacity values.

摘要翻译： 排气催化剂充满氧气直至饱和。 给定的第一浓空气/燃料比设置在气缸的燃烧室中。 取决于来自第一和第二排气探针的测量信号确定第一储氧容量值。 排气催化剂充满氧气直至饱和。 给定的第二浓空气/燃料比设置在气缸的燃烧室中。 取决于来自第一和第二排气探针的测量信号确定第二储氧容量值。 取决于第一和第二储氧容量值来确定校正的储氧容量值。

公开(公告)号：US20100186371A1

公开(公告)日：2010-07-29

申请号：US12161264

申请日：2006-12-05

申请人： Gerd Rösel ,  Michaela Schneider

发明人： Gerd Rösel ,  Michaela Schneider

IPC分类号： F01N3/18 ,  F01N3/10

CPC分类号： F01N9/00 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/0864 ,  Y02T10/47

摘要： Method and apparatus for operating an exhaust-gas catalytic converter (21) of an internal combustion engine having at least one cylinder (Z1-Z4) and one exhaust-gas section (4), in which the exhaust-gas catalytic converter (21) and a lambda probe (43) downstream of the exhaust-gas catalytic converter (21) are arranged. A characteristic value which is representative for the NOx concentration is determined as a function of a measured signal (VLS DOWN) of the lambda probe (43).

摘要翻译： 用于操作具有至少一个气缸（Z1-Z4）和一个废气部分（4）的内燃机的排气 - 催化转化器（21）的方法和装置，其中排气 - 催化转化器（21） 和排气催化转化器（21）下游的λ探针（43）。 根据λ探针（43）的测量信号（VLS DOWN）确定代表NOx浓度的特征值。

公开(公告)号：US20100037676A1

公开(公告)日：2010-02-18

申请号：US12538236

申请日：2009-08-10

申请人： Martin Brandt ,  Gerd Rösel

发明人： Martin Brandt ,  Gerd Rösel

IPC分类号： G01N7/00

CPC分类号： F02D41/1454 ,  F01N11/005 ,  F02D41/1459 ,  F02D41/1465 ,  F02D2200/0802 ,  F02D2200/0816 ,  Y02T10/47

摘要： An exhaust-gas sensor signal (vls_down) of an exhaust-gas sensor that is disposed in an exhaust gas train downstream of at least one first catalytic converter volume (V1) and upstream of at least one second catalytic converter volume (V2) is acquired. An estimated value of an intermediate emission for a position of the exhaust-gas sensor is determined in dependence upon the exhaust-gas sensor signal (vls_down). An estimated value of an emission downstream of the at least one second catalytic converter volume (V2) is determined in dependence upon the estimated value of the intermediate emission and in dependence upon at least one predefined correction characteristic (fac_cor_ufc) or at least one predefined correction characteristics map for correcting the estimated value of the intermediate emission with regard to an influence of the at least one second catalytic converter volume (V2) upon the emission of the at least one exhaust gas component.

摘要翻译： 获取布置在至少一个第一催化转化器体积（V1）和至少一个第二催化转化器体积（V2）的上游的排气系列中的废气传感器的废气传感器信号（vls_down） 。 根据废气传感器信号（vls_down）确定废气传感器的位置的中间发射的估计值。 至少一个第二催化转化器体积（V2）的下游的排放的估计值根据中间发射的估计值并根据至少一个预定义的校正特性（fac_cor_ufc）或至少一个预定义的校正来确定 特征图，用于相对于至少一个第二催化转化器体积（V2）对所述至少一个废气组分的排放的影响来校正中间发射的估计值。

公开(公告)号：US07343734B2

公开(公告)日：2008-03-18

申请号：US10510648

申请日：2004-01-15

申请人： Reza Aliakbarzadeh ,  Gerd Rösel ,  Milos Tichy

发明人： Reza Aliakbarzadeh ,  Gerd Rösel ,  Milos Tichy

IPC分类号： F01N3/00

CPC分类号： F02D41/1454 ,  F02D41/0295 ,  F02D41/1456 ,  F02D41/1477 ,  F02D41/1495 ,  F02D2200/0814 ,  F02D2200/0816

摘要： The invention relates to a method for diagnosing a regulated exhaust gas catalyst, according to which regulating the catalyst results in control cycles, catalyst diagnosis being performed at a predetermined oxygen concentration per control cycle. A fuel mixture can be adjusted fat or lean according to a specific lambda control factor. A fat or lean exhaust gas is detected, the lambda control factor being incrementally decreased when a lean exhaust gas is detected. The lambda control factor is modified by a P step following a detected change from a fat to lean exhaust gas or from a lean to a fat exhaust gas, the lambda control factor being set to a minimum value during a first loading period following a detected change from a fat exhaust gas to a lean exhaust gas while being set to a maximum value during a second loading period following a detected change from a lean exhaust gas to a fat exhaust gas. The first and the second loading period are adjusted such that the oxygen concentration reaches the predetermined oxygen concentration in each control cycle.

摘要翻译： 本发明涉及一种用于诊断调节废气催化剂的方法，根据该方法调节催化剂导致控制循环，催化剂诊断以每个控制循环的预定氧浓度进行。 燃料混合物可以根据特定的λ控制因子调节脂肪或瘦。 检测到肥胖或贫乏的废气，当检测到贫排气时，λ控制因子逐渐减小。 根据从脂肪到稀薄废气或从贫脂到排脂的检测到的变化，通过P步骤修改λ控制因子，在检测到的变化之后的第一加载周期期间将λ控制因子设置为最小值 在从贫排气到脂肪排气的检测到的变化之后的第二加载期间，将其从排气排出至贫排气，同时设定为最大值。 调整第一和第二装载周期，使得氧浓度在每个控制循环中达到预定的氧浓度。