Global Patent Index - EP 1079090 B1

EP 1079090 B1 20060503 - Method for calibration of a wideband lambda probe used in internal combustion engines

Title (en)

Method for calibration of a wideband lambda probe used in internal combustion engines

Title (de)

Verfahren zur Kalibrierung einer in Verbrennungskraftmaschinen eingesetzten Breitband-Lambdasonde

Title (fr)

Procédé d'étalonnage d'une sonde lamdba à large bande utilisée dans des moteurs à combustion interne

Publication

EP 1079090 B1 20060503 (DE)

Application

EP 00116857 A 20000804

Priority

DE 19939555 A 19990820

Abstract (en)

[origin: EP1079090A2] To calibrate the sensor and compensate for manufacturing tolerances a correction value is determined as follows. With the engine running with l = 1 a fuel mass mK1 and air mass flow mL1 are determined. Then, with l = 1 (lean or fat mixture) values mK2 and mL2 are measured. Based on these values the correction value for the condition l = 1 is derived

IPC 8 full level

F02D 41/14 (2006.01); F02D 41/24 (2006.01); G01N 27/417 (2006.01)

CPC (source: EP)

F02D 41/1456 (2013.01); F02D 41/1458 (2013.01); F02D 41/2454 (2013.01); F02D 41/2474 (2013.01); F02D 41/2441 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 1079090 A2 20010228; EP 1079090 A3 20030305; EP 1079090 B1 20060503; AT E325266 T1 20060615; DE 19939555 A1 20010222; DE 50012679 D1 20060608

DOCDB simple family (application)

EP 00116857 A 20000804; AT 00116857 T 20000804; DE 19939555 A 19990820; DE 50012679 T 20000804