公开(公告)号：US07139657B2

公开(公告)日：2006-11-21

申请号：US10538412

申请日：2003-11-27

申请人： Jerome Bouchain ,  Jürgen Fritsch ,  Rainer Hirn

发明人： Jerome Bouchain ,  Jürgen Fritsch ,  Rainer Hirn

IPC分类号： G06F117/00 ,  F02M51/00 ,  F02D41/38

CPC分类号： F02D41/20 ,  F02D41/123 ,  F02D41/2438 ,  F02D41/2467 ,  F02D41/40 ,  F02D2041/2055 ,  F02D2200/1012

摘要： The invention relates to a method for adapting an injection valve characteristic curve of a controlled fuel injection valve for an internal combustion engine, said curve reflecting the reference injection behaviour, to alterations in the actual injection behaviour caused by ageing. According to said method: during an operating mode of the internal combustion engine, which does not require an injection of fuel, the injection valve is intermittently controlled in accordance with a control period, said mode alternating with a period of no fuel injection, i.e. at least one working cycle with injection-valve control follows or precedes a working cycle without injection-valve control; at least one respective RPM value of the internal combustion engine is detected for the controlled working cycle and for at least one of the working cycles without control; a differential between the detected values is calculated and said differential is used to correct the characteristic curve.

公开(公告)号：US20060047405A1

公开(公告)日：2006-03-02

申请号：US10538412

申请日：2003-11-27

申请人： Jerome Bouchain ,  Jurgen Fritsch ,  Rainer Hirn

发明人： Jerome Bouchain ,  Jurgen Fritsch ,  Rainer Hirn

IPC分类号： G06F17/00 ,  F02M51/00

CPC分类号： F02D41/20 ,  F02D41/123 ,  F02D41/2438 ,  F02D41/2467 ,  F02D41/40 ,  F02D2041/2055 ,  F02D2200/1012

摘要： The invention relates to a method for adapting an injection valve characteristic curve of a controlled fuel injection valve for an internal combustion engine, said curve reflecting the reference injection behaviour, to alterations in the actual injection behaviour caused by ageing. According to said method: during an operating mode of the internal combustion engine, which does not require an injection of fuel, the injection valve is intermittently controlled in accordance with a control period, said mode alternating with a period of no fuel injection, i.e. at least one working cycle with injection-valve control follows or precedes a working cycle without injection-valve control; at least one respective RPM value of the internal combustion engine is detected for the controlled working cycle and for at least one of the working cycles without control; a differential between the detected values is calculated and said differential is used to correct the characteristic curve.

摘要翻译： 本发明涉及一种适用于内燃机的受控燃料喷射阀的喷射阀特性曲线的方法，该曲线反映了参考喷射行为，以改变由老化造成的实际喷射行为。 根据所述方法：在不需要喷射燃料的内燃机的运行模式下，根据控制期间间歇地控制喷射阀，所述模式与无燃料喷射的时段交替，即在 至少一个具有喷射阀控制的工作循环可以在没有喷射阀控制的情况下工作循环之前或之前进行; 在受控工作循环中检测内燃机的至少一个相应的RPM值，并且在不控制的情况下检测至少一个工作循环; 计算检测值之间的差值，并使用所述差分来校正特性曲线。