This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
L4–Engine Development for a Super Ultra Low Emissions Vehicle
Technical Paper
2000-01-0887
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
HONDA has developed technology to fulfill the strictest emissions standards to date. That is, we have developed the technology necessary to satisfy the state of California's SULEV (LEV–II) regulations. We were able to move from the conventional 600–cell, 4.3mil three–way catalyst to a 1200–cell, 2.0mil catalyst through the application of new canning technology. We were also able to achieve early catalyst light–off and improved conversion performance without increasing the precious metal content. However, it was not possible to satisfy the SULEV standards using only these improvements to the catalyst. It was also necessary for us to develop new emission control technology for the various stages of engine operation: cold, warm–up and post warm–up. Specifically, we developed technology that dramatically increases catalyst light–off speed by controlling intake air and ignition timing. Further, we developed technology to reduce exhaust emissions to the ultimate degree possible when the engine is cold and the catalyst is inactive. Also, in order to further improve the conversion performance of the catalyst once it is active, we developed a Secondary O2 Feedback Control System. This feedback system is an extremely high precision system that utilizes an adaptive sliding mode controller to identify various catalyst models in real time and predict the post–catalyst HEGO sensor output. The above technologies were used in combination to achieve the SULEV emissions standards.
Recommended Content
Authors
Topic
Citation
Kitagawa, H., Mibe, T., Okamatsu, K., and Yasui, Y., "L4–Engine Development for a Super Ultra Low Emissions Vehicle," SAE Technical Paper 2000-01-0887, 2000, https://doi.org/10.4271/2000-01-0887.Also In
References
- Kisshi Kikuchi Seki Kato Fujimori Development of High Performance L4 Engine ULEV System SAE Paper 980415 1998
- Maki, H. Hasegawa, Y. Akazaki, S. Komoriya, I. Nishimura, Y. Hirota, T. Real Time Control Using STR in Feedback System SAE Paper 950007 1995
- Shimasaki, Y. et al. “Study on Conformity Technology with ULEV Using EHC System” SAE Paper 960342 1996
- Fujii, S. “Digital Adaptive Control” Computrol 27 28 Corona July 1989
- Suzuki, T. “Basic of Adaptive Control” Computrol 32 7 Corona July 1990
- Nonami Den Sliding Mode Control Tokyo, Coronasha 1994 263
- Yasui Akazaki Ueno Iwaki Adaptive Sliding Mode Control for Secondary O2 Feedback Honda R&D Technical Review 11 1 65 71 1999
- Yasui Akazaki Ueno Iwaki Adaptive Sliding Mode Control for Secondary O2 Feedback Honda R&D Technical Review 11 2 65 71 1999
- Ueno Akazaki Yasui Iwaki A Quick Warm–up System during Engine Start–up Period Using Adaptive Control of Intake Air and Ignition Timing Honda R&D Technical Review 11 1 73 78 1999