公开(公告)号：US6085517A

公开(公告)日：2000-07-11

申请号：US883033

申请日：1997-06-26

申请人： Klaus Bayerle ,  Anton Angermaier

发明人： Klaus Bayerle ,  Anton Angermaier

IPC分类号： F01N3/20 ,  F01N3/22 ,  F01N3/32 ,  F01N9/00 ,  F02D35/00 ,  F02D41/02 ,  F01N3/00

CPC分类号： F01N3/222 ,  F01N3/2006 ,  F01N3/22 ,  F01N9/005 ,  F02D35/0038 ,  F02D41/024 ,  F01N2430/06 ,  F01N3/32 ,  Y02T10/26 ,  Y02T10/47

摘要： During the warm-up phase of a catalytic converter, the fuel-oxygen ratio in the exhaust gas upstream of the catalytic converter is regulated in dependence on the temperature of the catalytic converter. The amount of fuel is measured on the basis of an injection time into the internal combustion engine. The injection time is calculated from a basic injection time weighted with a weighting factor. The weighting factor depends on the secondary air mass which is delivered to the exhaust gas duct and on a predetermined set value for the fuel-oxygen ratio of the exhaust gas (.DELTA.value) upstream of the catalytic converter. The secondary air mass is regulated in dependence on an engine air intake.

摘要翻译： 在催化转化器的预热阶段期间，根据催化转化器的温度调节催化转化器上游排气中的燃料 - 氧比。 基于到内燃机的喷射时间来测量燃料量。 注射时间由加权因子加权的基本注射时间计算。 加权因子取决于输送到排气管道的二次空气质量和催化转化器上游的排气的燃料 - 氧气比（DELTA值）的预定设定值。 二次空气质量根据发动机进气量进行调节。

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。