EP 1733131 A1 20061220 - DEVICE AND METHOD FOR REDUCING A SENSOR CONTAMINATION
Title (en)
DEVICE AND METHOD FOR REDUCING A SENSOR CONTAMINATION
Title (de)
VORRICHTUNG UND VERFAHREN ZUR VERRINGERUNG DER VERSCHMUTZUNG EINES SENSORS
Title (fr)
DISPOSITIF ET PROCEDE DESTINES A REDUIRE LA CONTAMINATION D'UN DETECTEUR
Publication
Application
Priority
- EP 2005050416 W 20050201
- DE 102004015124 A 20040327
- DE 102004033954 A 20040714
Abstract (en)
[origin: WO2005093240A1] The invention relates to devices and methods for reducing a sensor contamination, wherein the inventive method consisting in deactivating a sensor or sensor element, preferably a hot film-air mass-cross-flow measuring device when a software function integrated into a control unit signals contamination or a possible impurities occurrence. Said deactivation is carried out by means of a high-side switch in a voltage supply or a low-side switch in an earth connection, wherein the impurity occurrence detection and the switch control are carried out by a control unit or by the internal evaluating unit of the sensor. After the sensor deactivation, a substitute signal is generated for substituting the missing output signal of the sensor.
IPC 8 full level
F02D 41/18 (2006.01); F02D 41/22 (2006.01); G01F 1/696 (2006.01); G01F 1/698 (2006.01); G01F 15/12 (2006.01); G01F 23/26 (2006.01); F02D 41/24 (2006.01)
CPC (source: EP US)
F02D 41/187 (2013.01 - EP US); F02D 41/222 (2013.01 - EP US); G01F 1/696 (2013.01 - EP US); G01F 1/6983 (2013.01 - EP US); G01F 15/12 (2013.01 - EP US); F02D 41/28 (2013.01 - EP US); F02D 2041/283 (2013.01 - EP US); Y02T 10/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2005093240A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2005093240 A1 20051006; DE 102004033954 A1 20051013; EP 1733131 A1 20061220; JP 2007530863 A 20071101; JP 4542133 B2 20100908; US 2008133118 A1 20080605; US 7487034 B2 20090203
DOCDB simple family (application)
EP 2005050416 W 20050201; DE 102004033954 A 20040714; EP 05707904 A 20050201; JP 2007505527 A 20050201; US 58387605 A 20050201