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Electronic Control of a Variable Geometry Turbocharger
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English
Abstract
Engineers have long known the advantages of using variable geometry turbochargers (VGTs) on automotive and heavy duty diesel engines. The control of a VGT requires sophisticated control schemes. Mechanical control of a VGT is very cumbersome and does not bring out all the advantages of using a VGT. Electronically controlling a VGT offers a better alternative. This paper explores the need to control a VGT; how to control a VGT; and the benefits of electronically controlling a VGT. A case study of the development of an electronic controller for a Schwitzer VGT is presented along with how an electronically controlled VGT is affecting the performance of a heavy duty diesel truck engine in the field.
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Authors
Citation
Jain, D., "Electronic Control of a Variable Geometry Turbocharger," SAE Technical Paper 900889, 1990, https://doi.org/10.4271/900889.Also In
References
- “Development of Nissan Variable Geometry JET Turbocharger” Hirabayashi Yuji et al. SAE 860105
- “A Comparison of Transient Vehicle Performance Using a Fixed Geometry, Wastegated Turbocharger and a Variable Geometry Turbocharger” Lundstrom Richard R. et al. SAE 860104
- “Schwitzer Variable Geometry Turbo and Microprocessor Control Design and Evaluation” Arnold Steve SAE 870296
- “Recommended Environmental Practices For Electronic Equipment Design” SAE J1211
- “Variable Geometry Turbocharging of a Large Truck Diesel Engine” Wallace F.J. et al. SAE 860452
- “Schwitzer Variable Power Turbocharger Microprocessor Control System User Manual” Schwitzer U.S. Inc. 1990