发明名称 |
METHOD AND DEVICE FOR DIAGNOSING AN INTAKE TRACT OF AN INTERNAL COMBUSTION ENGINE |
摘要 |
An internal combustion engine has an intake tract having a compressor. A verification is performed as to whether at least one predefined activation condition is met. A boost pressure (PUT) downstream of the compressor is sensed or determined. An adaptation characteristic curve or adaptation characteristic map (KF_AD) is adapted as a function of a rotational speed (N) of the internal combustion engine and the boost pressure (PUT) if the at least one actuation condition is met. A gradient is determined that is representative of a gradient of the adaptation characteristic curve or adaptation map (KF_AD). From the determined gradient, conclusions are drawn with respect to a fault in the intake tract of the internal combustion engine.
|
申请公布号 |
US2011098876(A1) |
申请公布日期 |
2011.04.28 |
申请号 |
US20090996868 |
申请日期 |
2009.05.27 |
申请人 |
BURKHARDT THOMAS;DINGL JUERGEN |
发明人 |
BURKHARDT THOMAS;DINGL JUERGEN |
分类号 |
F02D23/00 |
主分类号 |
F02D23/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|