Real-time Fuel Consumption Measurement Using Raw Exhaust Flow Meter and Zirconia AFR Sensor

排ガス流量計とジルコニア空燃比計を用いた 燃料消費率の瞬時計測

The improvement of fuel efficiency is one of the most important issues in the R&D of powertrain systems. This paper describes a new concept for measuring fuel consumption in real-time, “exhaust flow-AFR method”, which utilizing raw exhaust gas flow rate and exhaust air-to-fuel ratio (AFR). An ultrasonic exhaust flow meter which can measure a wide flow range with no pressure loss, and a fast response zirconia sensor which can be installed onto the exhaust pipe directly were adopted. The exhaust flow-AFR method showed a good correlation with the carbon balance method as a reference under some test conditions. The method also showed short rise/down time and the measurement result of “zero” during fuel cutting as expected.排ガスの瞬時燃料消費量を簡便かつ高速応答で計測する手法を提案する．この手法は超音波方式の排ガス流量計と直挿型O₂センサによる空燃比計測によって実現した．高い応答速度で，配管内同位置の直接計測を行うことにより時間遅れや応答遅れの影響を受けずに計測を行うことができ，従来計測法との高い相関性を確認できた．

• Record URL:
  https://doi.org/10.11351/jsaeronbun.45.155
• Record URL:
  http://scholar.google.com/scholar_lookup?title=Real-time%20Fuel%20Consumption%20Measurement%20Using%20Raw%20Exhaust%20Flow%20Meter%20and%20Zirconia%20AFR%20Sensor&author=M.%20Akita&author=H.%20Nakamura&author=M.%20Adachi&publication_year=2014
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Akita, Masanobu
  • Nakamura, Hiroshi
  • Adachi, Masayuki
• Publication Date: 2014-1

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 155-160
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 45
  • Issue Number: 1
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Environmental impacts; Exhaust gases; Flow fields; Flowmeters; Fuel air mixtures; Fuel conservation; Fuel consumption; In vehicle sensors; Real time information; Thermal efficiency; Ultrasonic tests; Zirconium
• Uncontrolled Terms: Air fuel ratio
• Subject Areas: Energy; Environment; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01666900
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Apr 23 2018 4:47PM