This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Detecting the Misfire of Motorcycle Engine with Wide Band Oxygen Sensor
Technical Paper
2013-32-9065
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Use of catalyst in engines has entailed a radical increase in the importance of misfire detection. When a misfire occurs, hydrocarbon emissions will increase and the unburned fuel can damage the catalyst by overheating. On-Board Diagnostics II (OBDII) regulations are still not applied to motorcycle or moped yet. However its application is under discussion in European Union. In Taiwan, OBD is scheduled to be implemented soon. Many strategies of misfire detection have been developed, including variation in engine shaft angular speed, spark plug voltage, cylinder pressure, oxygen sensor signal, knowledge based expert system, and neural networks. WE propose a new method to use the real time signals of a wide band oxygen sensor to detect misfire where, misfire was induced on purpose with a misfire generator. The sensor and the misfire trigger signals were recorded simultaneously. It was found that when a misfire occurs, a spike of sensor signal would follow due to instantaneous variation of the oxygen content in the exhaust flow. This signal was then processed to detect the occurrence of misfire. Results of test show that differentiated signals have good correlation with the misfire trigger. Misfire is detected by monitoring the amplitude of differentiated signals. The scheme has been shown to detect the misfiring condition reliably up to 5000rpm.
Recommended Content
Authors
Topic
Citation
Amadou, Y., Wu, C., Jiang, Y., and Lu, J., "Detecting the Misfire of Motorcycle Engine with Wide Band Oxygen Sensor," SAE Technical Paper 2013-32-9065, 2013, https://doi.org/10.4271/2013-32-9065.Also In
References
- Mathieu , V. , Duponcheele , P. and Leduc , B. Misfire Detection on S.I. Engines by Instantaneous Torque Analysis SAE paper 2000-01-0367
- Chung , Y. , Choi , S. , Bae , C. , and Yoon , K. A new concept of misfire detection using a wide-range oxygen sensor in a spark ignition engine D06398 IMechE1999
- Twigg , M. Automotive exhaust emissions control Plat., Met. Rev. 47 4 2003 157 162
- Chung , Y. , Kim , H. , Choi , S. and Bae , C. Flow characteristics of misfired gas in the exhaust manifold of a spark ignition engine D04899 IMechE 2000
- Forster , J. , Lohmann , A. , Mezger , M. , and Muller , K. R. Advanced engine misfire detection for SI Engines SAE paper 970855
- Citron , S.J. , O'Higgins , J.E. , and Chen , L.Y. Cylinder by cylinder engine pressure and pressure torque waveform determination utilizing speed fluctuations SAE Paper no. 890486
- Willimowski , M. , and Isermann , R. A time domain Based Diagnostic System for Misfire detection in spark-ignition engine by Exhaust-Gas Pressure Analysis SAE paper 2000-01-0366