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Evaluation of Idle Combustion Stability Using Flywheel Acceleration
Technical Paper
2003-01-1673
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Vehicle idle quality has become an increasing quality concern for car manufacturers because of its impact on customer satisfaction. To get better fuel economy the overall trend is to reduce idle speed at both drive and neutral idles. This typically has adverse impact on vehicle idle quality. Lowering the idle rpm generally degrades the engine combustion stability and also makes the engine driving forces more likely to align with vehicle sensitivities (Powertrain rigid body modes, body modes, etc.). To better understand the contribution to the idle quality from different factors and carry out well-planned improvement measures, a quick and easy way to assess engine combustion stability is required.
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Citation
Teng, C., "Evaluation of Idle Combustion Stability Using Flywheel Acceleration," SAE Technical Paper 2003-01-1673, 2003, https://doi.org/10.4271/2003-01-1673.Also In
References
- Chen X.D. Roskilly M. “A Crank Angular Velocity Based Method for Engine IMEP Measurement for Idle Quality Investigation and Adaptive Ignition Time Trimming to Improve Idle Quality” SAE 1999-01-0855 1999
- Beikmann R.S. “Roll-Down Considerations in Idle Quality” SAE 2001-01-1501 2001
- Hoard J. Rehagen, L. “Relating Subjective Idle Quality to Engine Combustion” SAE 970035 1997
- Park J. Park K.S. Lee J.H. Kauh S. “Adaptive Control of Individual Cylinder Ignition Timing for Improvement of Idle Stability” SAE 930315 1993
- Alt N. Wolff K. Eijkel P. “Idle Comfort of Passenger Cars” SAE 1999-01-1805 1999