Development of an On-Board PM Sensor for the OBD System Based on an Electrochemical Polarization

An on-board particulate matter (PM) sensor, consisting of a gas-permeable electrochemical cell with a porous yttria-stabilized zirconia solid oxide electrolyte, was developed to assist the on-board diagnostics (OBD) system of a vehicle. Exhaust is pumped from the anode side to the cathode side and PM deposited on the anode is instantly oxidized by the catalytic effects of the metal component of the electrode at temperatures higher than 350°C. The PM oxidation reaction occurs at the three-phase boundary between the anode, electrolyte and gas phase, and causes a slight change in the bulk average oxygen concentration, which produces electrochemical polarization by the difference in oxygen partial pressures between the anode and cathode. The developed PM sensor has a detection limit of 2 mg/m3, at which level will enable PM detection in the OBD system according to the EURO VI regulation.

• Record URL:
  • https://doi.org/10.4271/2011-01-2059
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463952
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Yoshihara, Yoshinobu
  • Suzuki, Takaya
  • Tominaga, Keita
  • Aoki, Keiichiro
  • Nishijima, Hiroki
• Conference:
  • SAE International Powertrains, Fuels and Lubricants Meeting
  • Location: Kyoto , Japan
  • Date: 2011-8-30 to 2011-9-2
• Publication Date: 2011-8-30

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 337-342
• Serial:
  • SAE International Journal of Fuels and Lubricants
  • Volume: 5
  • Issue Number: 1
  • Publisher: SAE International
  • ISSN: 1946-3952
  • EISSN: 1946-3960
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-04/

Subject/Index Terms

• TRT Terms: Catalysts; Diagnostic tests; Electrochemical processes; Emissions testing; Exhaust gases; Particulates; Sensors
• Subject Areas: Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01623840
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2011-01-2059
• Files: TRIS, SAE
• Created Date: Jan 25 2017 3:29PM