Welcome to Journal of Automotive Safety and Energy,

Journal of Automotive Safety and Energy ›› 2011, Vol. 2 ›› Issue (1): 45-52.DOI: 10.3969/j.issn.1674-8484.2011.01.006

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Online fuel cell monitoring and operating conditions identification including life time measurement

 Erich Ramschak1, Nicolas Fouquet2, Harald Brandstaetter3, Viktor Hacker3   

  1. 1. AVL List GmbH, Hans List Platz 1, 8020 Graz, Austria; 2. PSA Peugeot Citro?n, 212 Bd Pelletier, 78955 Carrières sous Poissy, France; 3. Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Steyrergasse 21, A-8010 Graz, Austria
  • Received:2011-01-18 Online:2011-01-15 Published:2011-06-17
  • About author:第一作者/ First author: Ramschak E, Responsible for product management of AVL’s fuel cell services.
  • Supported by:

    基金项目/ Supported by: The National Funding Institution Austrian Research Promotion Agency (FFG).

Abstract: An advanced version, AVL THDA, was developed to monitor the proton exchange membrane fuel cell (PEMFC) without using single cell voltage measurement (CVM) fault diagnosis and evaluate State of Health (SOH). The AVL THDA detects critical voltage drifts on cell level to ensure reliable operating conditions using harmonic distortion and electrical impedance spectroscopy. Detected critical operating conditions are assessed online and classified into membrane dry-out, liquid water droplets and low media supply issues. Thus, a system controller can immediately initiate counter measures preventing stack degradation. Taking into account long term effects in the fuel cell, also life time estimation is considered. The technology is capable of being fully integrated into existing fuel cell system components, therefore, has potential of cost efficient application.

Key words: fuel cell (FC) monitoring, proton exchange membrane fuel cell (PEMFC), life time measurement, online diagnostics, ?harmonic distortion, electrical impedance spectroscopy

CLC Number: