This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Adaptive Control of an Externally Controlled Engine Cooling Fan- Drive
Technical Paper
2006-01-1036
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this paper an adaptive control strategy applied to an externally controlled fan drive (ECFD) is presented. A bimetal actuated viscous clutch operation is solely a function of the engine under hood temperature while the ECFD can be controlled to maintain any fan speed within its operating range by an external controller. As compared to traditional viscous clutches by using the ECFD a saving of nearly 30% in overall fan power consumption is observed in normal city driving while in highway driving a saving of 85% can be achieved. An adaptive control strategy was developed to control the ECFD. When applied to the ECFD, the adaptive control strategy should be able to provide several advantages such as (1) the ability to compensate for any performance degradation observed over the life of the ECFD, due to the wear and tear of the device. (2) If minor changes are to be made to the ECFD to incorporate future customer needs, the adaptive control strategy will not require any re-calibration of the controller gains, hence saving development time and cost. In this paper the functioning of ECFD is explained along with the adaptive control structure applied to the ECFD. Testing was done on a bench-stand in a temperature-controlled environment and also in-vehicle. Both the in-vehicle and bench-stand testing shows the ability of the adaptive controller in maintaining any requested fan speed within the operating range of the ECFD. This paper ends with a discussion on the limitations of applying the adaptive controller strategy to the ECFD.
Recommended Content
| Technical Paper | Underhood Thermal Management by Controlling Air Flow |
| Journal Article | Electric Water Cooling Pump Sensitivity Based Adaptive Control |
| Technical Paper | The Differential Compound Engine - Further Development |
Authors
Citation
Bhat, N., Joshi, S., Shiozaki, K., Ogasawara, M. et al., "Adaptive Control of an Externally Controlled Engine Cooling Fan- Drive," SAE Technical Paper 2006-01-1036, 2006, https://doi.org/10.4271/2006-01-1036.Also In
References
- Shiozaki K. Iida Y. US Patent No. 6915,888 B2, Externally Control Type Fan Device 2005
- Kassakian J. Perreault D. “The future of electronics in automobiles,” Proceedings of 2001 International Symposium on Power Semiconductor Devices & ICs Osaka, Japan 2001
- Astrom K. Wittenmark B. “A survey of adaptive control applications,” Proceedings of 34 th Conference on Decision & Control New Orleans, LA 1995
- Goodwin G. SangSin K. Adaptive filtering prediction and control Prentice Hall Publications 1984
- Ananthakrishnan S. Agarwal S. Venugopal R. Demeri M. “RCS based hardware-in-the-loop intelligent system design and performance measurement,” Proceedings of 2002 PerMIS Workshop Gaithersburg, MD 2002
- Gregorcic G. Lightbody G. “A comparison of multiple model and pole-placement self-tuning for the control of highly nonlinear processes,” Proceedings of the Irish Signals and Systems Conference 2000