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1. 发明申请

US20080314023A1 Method for Determining Current Oxygen Loading of a 3-Way Catalytic Converter of a Lambda-Controlled Internal Combustion Engine 有权
标题翻译：用于确定λ控制的内燃机的3向催化转化器的当前氧气负载的方法
公开(公告)号：US20080314023A1
公开(公告)日：2008-12-25
申请号：US10590788
申请日：2004-12-06
申请人： Wolf-Dieter Pohmerer , Volker Renz , Gerd Rosel , Milos Tichy
发明人： Wolf-Dieter Pohmerer , Volker Renz , Gerd Rosel , Milos Tichy
IPC分类号： F01N3/20 , G01M15/10 , F02D41/26 , F01N11/00
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。

2. 发明申请

US20050166578A1 Method for operating an internal combustion engine that is equipped with a three-way catalytic converter 有权
标题翻译：用于操作配备有三元催化转化器的内燃机的方法
公开(公告)号：US20050166578A1
公开(公告)日：2005-08-04
申请号：US10513509
申请日：2003-05-02
申请人： Wolf-Dieter Pohmerer , Gerd Rosel
发明人： Wolf-Dieter Pohmerer , Gerd Rosel
IPC分类号： F02D41/02 , F01N3/00
CPC分类号： F02D41/0295 , F01N2570/16 , F02D2200/0814 , Y02T10/22
摘要： The invention relates to a method for operating an internal combustion engine that is equipped with a three-way catalytic converter. According to the inventive method, a lambda value of the air/fuel mixture, with which the internal combustion engine is supplied, is set below and above a set value in a cyclically alternating manner during a forced activation whereby the lambda value in rich phases is less than the set value and in lean phases, is greater than the set value. During the forced activation, the rich phases and the lean phases are matched to one another according to a specified criterion. The invention provides that the amount, by which the lambda value in rich phases is set below the set value, is selected so that it is equal to the amount, by which the lambda value in lean phases is set above the set value. When determining the criterion, an air mass is used that is supplied to the internal combustion engine during the rich and lean phases.
摘要翻译：本发明涉及一种操作配备有三元催化转化器的内燃机的方法。根据本发明的方法，在强制活化期间，循环交替的方式将内燃机供给的空气/燃料混合物的λ值设定在设定值以下，使浓相中的λ值为小于设定值和精馏阶段，大于设定值。在强制激活期间，富相和稀相根据指定的标准相互匹配。本发明提供了将浓相中的λ值设定在设定值以下的量，以使其等于稀相中的λ值设定在设定值以上的量。当确定标准时，在富相和稀相期间使用供给内燃机的空气质量。

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