发明名称 |
METHOD FOR THE FUNCTIONAL DIAGNOSIS OF AN EXHAUST RECYCLING SYSTEM ON AN INTERNAL COMBUSTION ENGINE |
摘要 |
The invention relates to the diagnosis of an exhaust gas recycling valve, whereby, on switching off the internal combustion engine, the throttle valve and the exhaust recycling valve are closed and a check is made of whether a compression is detectable in the cylinders of the internal combustion engine, by means of an engine speed check within a segment. Should an engine speed difference (Ndiff) be greater than a threshold value (Ndiff SW), then an incompletely closed exhaust gas recycling valve is recognized, assuming a complete closure of the throttle valve. |
申请公布号 |
EP1305514(B1) |
申请公布日期 |
2005.03.16 |
申请号 |
EP20010960136 |
申请日期 |
2001.08.01 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
BIRKNER, CHRISTIAN;KAESBAUER, MICHAEL |
分类号 |
F02B47/08;F02B77/08;F02D41/00;F02D41/04;F02D41/14;F02D41/22;F02M25/07 |
主分类号 |
F02B47/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|