公开(公告)号：US06584834B1

公开(公告)日：2003-07-01

申请号：US09831735

申请日：2001-05-14

申请人： Michael Lehner ,  Heiko Oertel ,  Andrea Lohmann

发明人： Michael Lehner ,  Heiko Oertel ,  Andrea Lohmann

IPC分类号： G01M1500

CPC分类号： F02D41/1498 ,  F02D2200/1015 ,  G01M15/11

摘要： A method for detecting combustion misfires for internal combustion engines is introduced wherein an index for the rough running of the engine is formed and is compared to a threshold value. The threshold value is dependent upon the load of the engine. Exceeding the threshold value is evaluated as a misfire. The method is characterized in that the threshold value, in addition to being dependent upon the load, is also dependent upon the ignition angle and/or the lambda value or that the formation of the index for the rough running also takes place in dependence upon the ignition angle and/or on the lambda value; and/or that the activation/deactivation of the misfire detection is at least dependent upon the ignition angle and/or on the lambda value.

摘要翻译： 引入了一种用于检测内燃机的燃烧失火的方法，其中形成用于发动机的粗跑的指标并将其与阈值进行比较。 阈值取决于发动机的负载。 超过阈值被评估为失火。 该方法的特征在于，阈值除了依赖于负载之外，还取决于点火角和/或λ值，或者粗略运行的指数的形成也依赖于 点火角度和/或λ值; 和/或失火检测的激活/去激活至少取决于点火角和/或λ值。

公开(公告)号：US20080314349A1

公开(公告)日：2008-12-25

申请号：US11821668

申请日：2007-06-25

申请人： Heiko Oertel ,  Peter Knieps

发明人： Heiko Oertel ,  Peter Knieps

IPC分类号： F02N17/00

CPC分类号： F02P5/1504 ,  F02D37/02 ,  F02D41/062 ,  F02D41/3818 ,  F02D2041/3881 ,  F02N11/10 ,  Y02T10/46

摘要： A method of starting an engine having a fuel rail, one or more fuel injectors, and one or more spark plugs. In one embodiment, the method includes initializing a starting operation of the engine and suppressing the engine from starting by retarding a spark timing of the one or more spark plugs from normal spark timing. The method also includes purging, while the spark timing is being retarded, the fuel rail of the engine by operating the one or more fuel injectors. Additionally, the method includes advancing the spark timing after a first duration has passed or the engine has started.

摘要翻译： 一种启动具有燃料轨，一个或多个燃料喷射器和一个或多个火花塞的发动机的方法。 在一个实施例中，该方法包括初始化发动机的启动操作并通过从正常的火花正时延迟一个或多个火花塞的火花正时来抑制发动机起动。 该方法还包括通过操作一个或多个燃料喷射器来清除发动机的燃料轨道，同时火花正时被延迟。 此外，该方法包括在第一持续时间过去之后或者发动机起动之后推进火花正时。

公开(公告)号：US06918288B2

公开(公告)日：2005-07-19

申请号：US09958539

申请日：2001-01-24

申请人： Michael Lehner ,  Heiko Oertel ,  Klaus Ries-Mueller

发明人： Michael Lehner ,  Heiko Oertel ,  Klaus Ries-Mueller

IPC分类号： G01M15/04 ,  F02D41/00 ,  F02D41/14 ,  F02D41/22 ,  F02D41/34 ,  F02D45/00 ,  G01M15/11 ,  G01M15/00

CPC分类号： G01M15/11 ,  F02D41/0085 ,  F02D41/1498 ,  F02D41/22 ,  F02D2200/1015

摘要： The invention relates to a method for detecting combustion misfires in multi-cylinder internal combustion engines having several simultaneously igniting cylinders wherein, for each crankshaft rotation, rough running values are determined by measuring segment times, the segment times including the times, which correspond to the piston movement of individual cylinders after their ignition time point, wherein the crankshaft passes through an associated circular segment angular region. A combustion misfire is determined in the affected crankshaft circular segment regions from the determined rough running values LUT for crankshaft segment regions having several simultaneously igniting cylinders via a desired value comparison to a threshold value SW2, which is lower in value than the threshold value SW1 for the misfire check in crankshaft segment regions having individually igniting cylinders. For a combustion misfire in a crankshaft segment region having simultaneously igniting cylinders causing a misfire operation in one of these cylinders, a misfire operation is caused by a suitable engine intervention and by measuring the change of the rough running values in the crankshaft segment region having the simultaneously igniting cylinders, the cylinder is determined by the engine intervention which exhibits a combustion misfire without engine intervention.

摘要翻译： 本发明涉及一种用于检测具有多个同时点燃气缸的多气缸内燃机中的燃烧失火的方法，其中，对于每个曲轴旋转，通过测量段时间来确定粗略运行值，包括对应于 各个气缸在其点火时间点之后的活塞运动，其中曲轴通过相关联的圆形段角度区域。 在受影响的曲轴圆形区域中，根据所确定的具有几个同时点燃的气缸的曲轴段区域的粗略运行值LUT，通过与门限值SW 2比较的期望值比较来确定燃烧失火 在具有单独点燃气缸的曲轴段区域中的失火检查的阈值SW <1>。 为了在具有同时点燃的气缸的燃料失火中引起这些气缸中的一个气缸中的失火作业，由合适的发动机干预引起失火作业，并通过测量具有 同时点燃气缸，气缸由发动机干预确定，该发动机干预在没有发动机干预的情况下表现出燃烧失火。

公开(公告)号：US06450017B2

公开(公告)日：2002-09-17

申请号：US09759459

申请日：2001-01-16

申请人： Heiko Oertel ,  Andrea Lohmann ,  Juergen Schwabe ,  Ralf Schnee ,  Uwe Buck ,  Peter Wiltsch ,  Heinz Viel

发明人： Heiko Oertel ,  Andrea Lohmann ,  Juergen Schwabe ,  Ralf Schnee ,  Uwe Buck ,  Peter Wiltsch ,  Heinz Viel

IPC分类号： G01M1500

CPC分类号： G01M15/11

摘要： The invention relates to a method for detecting combustion misfires in a multi-cylinder internal combustion engine. Combustion misfires are detected from data for the rough running of individual cylinders via a comparison with threshold values at operating points stored in a characteristic field. These data are determined within the engine. The combustion misfire detection is suppressed below an rpm-dependent zero-load characteristic line. The zero-load characteristic line is continuously adapted to the actually present lowest load at corresponding rpm values during vehicle operation.

摘要翻译： 本发明涉及一种用于检测多缸内燃机中的燃烧失火的方法。 通过与存储在特征区域中的操作点处的阈值的比较，从用于各个气缸的粗略运行的数据中检测燃烧失火。 这些数据在发动机内确定。 燃烧失火检测被抑制在低于依赖于rpm的零负荷特性线。 在车辆操作期间，零负荷特性线连续地适应于相应rpm值处的实际当前最低负载。