Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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The Response of a Wide-Range Oxygen Sensor to the Flow of Misfired Gas and Its Application for the Misfire Detection

실화가스 흐름에 대한 광역 산소센서의 응답특성 및 이를 이용한 실화감지

  • Published : 2000.03.01
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Abstract

To understand the signal fluctuation of a wide-range oxygen sensor installed at the exhaust confluence point, when a misfiring is triggered in a cylinder, the steady state and the transient response characteristics of the sensor to the flow of the misfired gas were investigated quantitatively. It was recognized that the steady state output voltage of the sensor increased higher when it contacted the misfired gas even though the fueling condition was the same as the normal combustion case and this characteristic enabled the application of the wide-range oxygen sensor for the misfire detection. The transient response was compared at different engine speeds and it was found that the response speed increased with the engine speed. The signal fluctuation was also estimated quantitatively, using these steady state and transient response of the sensor, and the estimated signal showed satisfactory correlation with the measurements.

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References

  1. SAE Paper 9202341 Universal Air-Fuel Ration Heated Exhaust Gas Oxygen Sensor and Further Application Yamada, T.;Hayakawa, N.;Kami, Y.;Kawai, T.
  2. SAE Paper 860408 Air-Fuel Ration Sensor for Rich, Stoichiometric and Lean Ranges Suzuki, S.;Sasayama, T.;Miki, M.;Ohsuga, M.;Tanaka, S.;Ueno, S.;Ichikawa, N.
  3. SAE Paper 940376 Individual Cylinder Air-Fuel Ratio Feedback Control Using an Observer Hasegawa, Y.;Akazaki, S.;Komoriya, I.;Maki, H.;Nishimura, Y.;Hirota, T.
  4. Mail Out #95-03 Mal- function and Diagnostic System Requirement 1994 and Subsequent Model Year Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles and Engines California's OBD-II Regulation
  5. Accepted for Publication in Journal of Automobile Engineering, I Mech E A New Concept of Misfire Detection Using a Wide-Range Oxygen Sensor in a Spark Ignition Engine Chung, Y.;Choi, S.;Bae, C.;Yoon, K.
  6. SAE Paper 1999-01-1485 Application of a Wide Range Oxygen Sensor for the Misfire Detection Chung, Y.;Choi, S.;Bae, C.;Yoon, K.
  7. Proceedings of the 15th Internal Combustion Engine Symposium of JSAE in Seoul Detection of the Misfired Gas Flow in the Exhaust Manifold Chung, Y.;Choi, S.;Bae, C.;Yoon, K.
  8. SAE Paper 982646 Interactions Between Exhaust Gas Composition and Oxygen Sensor Performance Buglass, J.G.;Morgan, T.D.B.;Graupner, J.O.
  9. Accepted for Publication in Journal of Automobile Engineering, I Mech E Flow Characteristics of Misfired Gas in the Exhaust Manifold of a Spark Ignition Engine Chung, Y.;Kim H.;Choi, S.;Bae, C.