公开(公告)号：US06928854B2

公开(公告)日：2005-08-16

申请号：US10168670

申请日：2000-12-20

申请人： Martin Hartz ,  Manfred Strohrmann ,  Detlev Straub ,  Christof Hammel ,  Juergen Biester ,  Udo Schulz

发明人： Martin Hartz ,  Manfred Strohrmann ,  Detlev Straub ,  Christof Hammel ,  Juergen Biester ,  Udo Schulz

IPC分类号： F02D45/00 ,  F02D41/18 ,  F02D41/22 ,  G01M15/00

CPC分类号： F02D41/222 ,  F02D41/187 ,  Y02T10/40

摘要： A method for detecting a malfunction of a sensor measuring a measured quantity is provided, in which a signal-range check for the output signal of the sensor is performed, provided that the measured quantity is within a permissible range. If the measured quantity is outside the permissible range, no signal-range check is performed, but the output signal is used for detecting the measured quantity and for further calculations. The sensor may be, for example, a hot-film air-mass meter. If this is the case, the measured quantity is the drawn-in air mass, and the signal-range check is performed, provided that the engine operating state and thus the drawn-in air satisfies specifiable conditions. In addition to the signal-range check, onboard diagnoses with regard to specifiable plausibility criteria relating to the offset-drift and/or the sensitivity-drift of the sensor may also be performed.

摘要翻译： 提供了一种用于检测测量量的传感器故障的方法，其中，如果测量量在容许范围内，则执行传感器的输出信号的信号范围检查。 如果测量的数量超出允​​许范围，则不进行信号范围检查，但输出信号用于检测测量量和进一步计算。 传感器可以是例如热膜空气质量计。 如果是这种情况，则测量的量是吸入的空气质量，并且执行信号范围检查，只要发动机运行状态和吸入的空气满足可指定的条件即可。 除了信号范围检查之外，还可以执行关于与偏移漂移有关的可指定合理性标准和/或传感器的灵敏度漂移的车载诊断。

公开(公告)号：US06571613B1

公开(公告)日：2003-06-03

申请号：US09595675

申请日：2000-06-19

申请人： Joachim Berger ,  Martin Hartz ,  Manfred Strohrmann ,  Detlev Straub ,  Rene Schenk

发明人： Joachim Berger ,  Martin Hartz ,  Manfred Strohrmann ,  Detlev Straub ,  Rene Schenk

IPC分类号： G01M1900

CPC分类号： F02D41/222 ,  F02D41/18 ,  F02D41/2474 ,  F02D2200/0402 ,  Y02T10/40

摘要： A method and a device for controlling an internal combustion engine. A temperature variable and a pressure variable are detected by sensors. On the basis of at least the temperature variable and the pressure variable, a first quantity is determined that characterizes the air quantity, which is supplied to the internal combustion engine. A further sensor detects a second quantity that characterizes the air quantity, which is supplied to the internal combustion engine. The second quantity is adapted by the first quantity. Furthermore, the first quantity is used as a substitute value for the second quantity.

摘要翻译： 一种用于控制内燃机的方法和装置。 传感器检测温度变量和压力变量。 基于至少温度变量和压力变量，确定表征供给内燃机的空气量的第一量。 另外的传感器检测表征供给内燃机的空气量的第二数量。 第二数量由第一数量调整。 此外，第一数量被用作第二数量的替代值。