公开(公告)号：US6044826A

公开(公告)日：2000-04-04

申请号：US259640

申请日：1999-03-01

申请人： Klaus Bayerle ,  Stefan Schneider ,  Hong Zhang ,  Maximilian Engl

发明人： Klaus Bayerle ,  Stefan Schneider ,  Hong Zhang ,  Maximilian Engl

IPC分类号： F02M25/07 ,  F02M26/49 ,  G01M15/00 ,  F02B47/08

CPC分类号： F02D41/0072 ,  F02M26/49 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1433 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/0408 ,  F02D41/1498 ,  F02M26/48 ,  Y02T10/47

摘要： A diagnostic device for monitoring an exhaust gas recirculation system determines a diagnostic value of the exhaust gas recirculation system without influencing the operation of the internal combustion engine. The diagnostic value depends on the intake pipe pressure and an observer intake pipe pressure. The latter is determined by an observer from one or more further operating variables of the internal combustion engine. The diagnostic device determines that the exhaust gas recirculation system is defective when the diagnostic value lies outside a range of values that depend on at least one operating variable.

摘要翻译： 用于监测废气再循环系统的诊断装置确定排气再循环系统的诊断值，而不影响内燃机的运行。 诊断值取决于进气管压力和观察者进气管压力。 后者由来自内燃机的一个或多个其它操作变量的观察者确定。 当诊断值位于取决于至少一个操作变量的值的范围之外时，诊断装置确定废气再循环系统是有缺陷的。

公开(公告)号：US5499613A

公开(公告)日：1996-03-19

申请号：US278272

申请日：1994-07-21

申请人： Klaus Bayerle ,  Hartmut Pfleger

发明人： Klaus Bayerle ,  Hartmut Pfleger

IPC分类号： F02M25/08 ,  F02M33/02

CPC分类号： F02M25/0809

摘要： A tank venting system for trapping fuel vapors and feeding the fuel vapors to an internal combustion engine having a fuel tank and an intake tube, includes a container adsorbing fuel vapors. A venting line is connected between the fuel tank and the container. A regeneration line is connected between the container and the intake tube of the internal combustion engine. A ventilation line communicates with the atmosphere and the container. A ventilation valve closes the ventilation line. A tank venting valve is disposed in the regeneration line and is triggered in an opening direction for feeding fuel vapors stored in the container. A pressure sensor detects a system pressure of the tank venting system. A method for monitoring the tank venting system includes monitoring the system pressure with the pressure sensor during the feeding of the fuel vapors, categorizing the ventilation valve as functioning improperly if a predetermined pressure threshold value is exceeded, and closing the tank venting valve.

摘要翻译： 一种用于捕集燃料蒸汽并将燃料蒸气输送到具有燃料箱和进气管的内燃机的罐排放系统，包括容纳燃料蒸气的容器。 燃油箱和容器之间连接有排气管路。 再生线连接在容器与内燃机的进气管之间。 通风线与大气和容器相通。 通风阀关闭通风管路。 储罐排放阀设置在再生管线中，并且在打开方向上被触发，用于供给储存在容器中的燃料蒸气。 压力传感器检测罐排气系统的系统压力。 一种用于监测罐排气系统的方法，包括在燃料蒸汽供给期间用压力传感器监测系统压力，如果超过预定的压力阈值，将通风阀分类为不正常的功能，并关闭罐排放阀。