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Development of the Unburned Exhaust Gas Ignition (UEGI) Technology to Achieve Fast Light-Off of Catalysts and Emissions Reduction
Technical Paper
2002-01-2899
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
UEGI(Unburned Exhaust Gas Ignition) is expected to help faster warm-up of a close-coupled catalytic converter (CCC) by igniting the unburned exhaust mixture using two glow plugs installed upstream of the catalyst. In this study, a control module and an algorithm for the UEGI technology was developed. In addition, a hydrocarbon adsorber was tested with the UEGI system for more effective reduction of HC emission during the cold start. The control module changes I/O signals of the ECU, to control ignition on/off, glow plug on/off, and A/F ratios during cold start. Because the system is designed to be applicable to conventional vehicles, its repeatability, stability, and precision of control were tested and analyzed on an engine test bench and vehicle test. Experimental results show that the CCC reaches the light-off temperature faster compared with the baseline exhaust system. Therefore HC and CO emissions are reduced significantly during the cold start. The UEGI control module proved its effectiveness in precise control of the UEGI system.
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Citation
Kim, D., Kang, B., and Cho, Y., "Development of the Unburned Exhaust Gas Ignition (UEGI) Technology to Achieve Fast Light-Off of Catalysts and Emissions Reduction," SAE Technical Paper 2002-01-2899, 2002, https://doi.org/10.4271/2002-01-2899.Also In
References
- Nishizawa Kimiyoshi Momoshima Sukenori Koga Masaki Tsuchida Hirofumi “Development of New Technologies Targeting Zero Emissions for Gasoline Engines” SAE 2000-01-0890 2000
- Ma T. Collins N. Hands T. “Exhaust Gas Ignition(EGI) -A New Concept for Rapid Light-Off of Automotive Exhaust Gas Catalyst” SAE 920400 1992
- Eade D. Hurley R. G. Rutter B. Inman G. Bakshi R. “Fast Light-Off of Underbody Catalysts Using Exhaust Gas Ignition(EGI)” SAE 952417 1995
- Cho Yong-Seok Lee Yoon-Seok Kim Duk-Sang Jung Sung-Yong Ohm In-Yong “An Alternative Method for Fast Light-Off of Catalysts-Cranking Exhaust Gas Ignition” SAE 2002-01-1678 2002
- Yamamoto Shinji Matsushita Kenjirou Etoh Satomi Takaya Masahiro “In-line Hydrocarbon (HC) Adsorber System for Reducing Cold-Start Emissions” SAE 2000-01-0892 2000
- Cho Y.S. et al. “A study of Exhaust Emission Reduction Using Cranking Exhaust Gas Ignition Technology and a Hydrocarbon Adsorber” KSME 99TE123 1999
- Automotive Handbook 3rd Robert Bosch GmbH 1993
- Drake Michael C Sinkevitch Robert M Quader Ather A Olson Keith L Chapaton Thomas J “Effect of Fuel/Air Ratio Variations on Catalyst Performance and Hydrocarbon Emissions During Cold-Start and Warm-Up” SAE 962075