A Robust Calibration Methodology for an On-Board Diagnostic Car System

Article

Erto, Pasquale; Barone, Stefano; Palumbo, Biagio   (2006, ASQ and Taylor & Francis Group, LLC)   University of Naples Federico II, Naples, Italy; University of Palermo, Palermo, Italy

Quality Engineering    Vol. 18    No. 2
QICID: 20469    April 2006    pp. 145-159
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Article Abstract

[This abstract is based on the authors' abstract.]Regulations require that new model automobiles be equipped with on-board diagnostic (OBD) systems to monitor components controlling exhaust emissions. These systems must be finely calibrated during the development stage for each new model car. A robust calibration methodology is presented that considers sources of variability due to production process and environmental conditions. The methodology enables evaluation of the false alarm and failure to detect risks related to the selected calibration. The methodology is demonstrated on an upstream oxygen sensor monitored by the OBD.

Keywords

Air pollution,Automobile industry,Diagnostics,Failure analysis,False alarm rate (FAR),Hypothesis testing,Robust design


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