Title

A Prognostic And Warning System For Power Electronic Modules In Electric, Hybrid, And Fuel Cell Vehicles

Keywords

Electric vehicles; Electronics module; Hybrid vehicles; Reliability

Abstract

Reliability of power electronics modules is of paramount importance for the commercial success of various types of electric vehicles. In this paper, we study the technical feasibility of detecting early symptoms and warning signs of power module degradation due to thermomechanical stress and fatigue, and developing a prognostic system that monitors the state of health of the power modules in electric, hybrid, and fuel cell vehicles. A signature degradation trace of the on-voltage of IGBT modules was observed from accelerated power cycling test. This on-voltage "anomaly" can be attributed to sequential events of solder joint degradation followed by wirebond lift-off mechanisms. A quasi real-time IGBT failure prognostic algorithm based on monitoring the abnormal VCEsat variation at specific currents and temperatures is developed. The algorithm was verified using extensive SIMULINK modeling. The prognostic system can be implemented cost-effectively in existing vehicle hardware/software architectures. © 2006 IEEE.

Publication Date

12-1-2006

Publication Title

Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)

Volume

3

Number of Pages

1578-1584

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/IAS.2006.256739

Socpus ID

34948857929 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34948857929

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