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1. (WO2001035065) METHOD FOR TESTING THE PERFORMANCE AND/OR ADJUSTMENT OF AN EXHAUST GAS TEMPERATURE SENSOR

Pub. No.:    WO/2001/035065    International Application No.:    PCT/DE2000/003919
Publication Date: Fri May 18 01:59:59 CEST 2001 International Filing Date: Fri Nov 10 00:59:59 CET 2000
IPC: G01K 15/00
Applicants: ROBERT BOSCH GMBH
SCHNAIBEL, Eberhard
KORING, Andreas
Inventors: SCHNAIBEL, Eberhard
KORING, Andreas
Title: METHOD FOR TESTING THE PERFORMANCE AND/OR ADJUSTMENT OF AN EXHAUST GAS TEMPERATURE SENSOR
Abstract:
A method for testing the performance and/or adjustment of a temperature sensor (exhaust gas temperature sensor), arranged in the exhaust of an internal combustion engine of a motor vehicle is characterised by the following steps: after a pre-determined switch-off time of the internal combustion engine is exceeded; a reference temperature is recorded by means of at least one further temperature sensor, arranged in the vehicle, physically separate from the exhaust sensor; comparison with the temperature recorded by the exhaust temperature sensor and a fault signal issued, or the output value of the exhaust gas temperature sensor adjusted to match the value measured by the further temperature sensor, when the recorded temperatures differ from each other by more than a pre-determined value.