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Diagnosis and on-line parametric estimation of automotive electronic throttle control systems

Authors:Youssef Bilal, Lag-INPG, France
Alamir Mazen, Lag-INPG, France
Topic:7.1 Automotive Control
Session:Automotive Diagnosis and Warning
Keywords: Engine management; Modeling; Diagnosis; signature analysis;multiple faults; parameter estimation.

Abstract

In this paper, a recently developed graphical signaturesgeneration tool is used for diagnosis and on-line parametricestimation of automotive electronic throttle control (ETC) system.The underlying diagnosis problem corresponds to variationsaffecting four system's parameters. It is shown that thisdiagnosis method enables detection, isolation and parameterestimation even under simultaneous faults occurrence outperformingexisting works on the same problem.