公开(公告)号：US20140012457A1

公开(公告)日：2014-01-09

申请号：US13936845

申请日：2013-07-08

申请人： Soenke MANNAL ,  Berthold BURK ,  Horst MUELLER ,  Michael BACHNER

发明人： Soenke MANNAL ,  Berthold BURK ,  Horst MUELLER ,  Michael BACHNER

IPC分类号： G01L27/00

CPC分类号： G01L27/007

摘要： A method for diagnosing a differential pressure sensor situated in an air duct of an internal combustion engine, including: selecting a tolerance range for an output signal of the differential pressure sensor, within which a predetermined pressure difference is to be interpreted; and ignoring an error, in which the output signal of the differential pressure sensor falls out of the tolerance range, if, first of all, a predetermined operating situation prevails, in which the predetermined pressure difference is considered to be applied to the differential pressure sensor, and secondly, a disturbance pressure is detected in the air duct.

摘要翻译： 一种用于诊断位于内燃机的空气管道中的差压传感器的方法，包括：选择要解释预定压力差的压差传感器的输出信号的公差范围; 并且忽略差压传感器的输出信号落在公差范围内的误差，如果首先考虑到预定的压力差被考虑应用于压差传感器的预定操作情况 ，其次，在风道中检测到扰动压力。

公开(公告)号：US20140007647A1

公开(公告)日：2014-01-09

申请号：US13936794

申请日：2013-07-08

申请人： Soenke MANNAL ,  Berthold BURK ,  Horst MUELLER ,  Michael BACHNER

发明人： Soenke MANNAL ,  Berthold BURK ,  Horst MUELLER ,  Michael BACHNER

IPC分类号： G01L27/00

CPC分类号： G01L27/002 ,  F02D41/0007 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/0408 ,  Y02T10/121

摘要： A method for correcting an offset for a pressure difference measured using a differential pressure sensor situated in an air duct. The offset is computed using an output signal of a pressure sensor, including: transferring the air duct into a predetermined operating situation in which a predetermined pressure difference is considered to be applied to the differential pressure sensor, measuring a level of the output signal in the predetermined operating situation, and computing the offset based on the measured level of the output signal.

摘要翻译： 一种用于校正使用位于空气管道中的差压传感器测量的压力差的偏移的方法。 使用压力传感器的输出信号来计算偏移量，包括：将空气管道传送到预定的操作状态，其中将预定的压力差认为应用于压差传感器，测量输出信号的电平 预定的操作情况，以及基于输出信号的测量电平来计算偏移量。