VGT and EGR Control of Common-Rail Diesel Engines Using an Artificial Neural Network
- Title
- VGT and EGR Control of Common-Rail Diesel Engines Using an Artificial Neural Network
- Author
- 선우명호
- Keywords
- control; diesel engine; variable geometry turbocharger; exhaust gas recirculation; mass air flow; neural network; indirect adaptive control
- Issue Date
- 2013-01
- Publisher
- ASME
- Citation
- Journal of Engineering for Gas Turbines & Power, 2013, 135(1), 012801
- Abstract
- In diesel engines, variable geometry turbocharger (VGT) and exhaust gas recirculation (EGR) systems are used to increase engine specific power and reduce NOx emissions, respectively. Because the dynamics of both the VGT and EGR are highly nonlinear and coupled to each other, better performance may be attained by substituting nonlinear multiple input, multiple output (MIMO) controllers for the existing conventional lookup table-based linear controllers. This paper presents a coordinated VGT/EGR control system for common-rail direct injection diesel engines. The objective of the control system is to track target mass air flow and target intake manifold pressure by adjusting the EGR and VGT actuator positions. We designed a nonlinear MIMO control system using a neural control scheme that adopts an indirect adaptive control approach. The neural control system is comprised of a neural network identifier, which mimics the target air system, and a neural network controller, which calculates the actuator positions. The proposed control system has been validated with engine experiments under transient operating conditions. It was demonstrated from experimental results that the proposed control system shows improved target value tracking performance over conventional VGT/EGR control system. [DOI: 10.1115/1.4007541]
- URI
- http://gasturbinespower.asmedigitalcollection.asme.org/article.aspx?articleid=1660752http://hdl.handle.net/20.500.11754/41465
- ISSN
- 0742-4795
- DOI
- 10.1115/1.4007541
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > AUTOMOTIVE ENGINEERING(미래자동차공학과) > Articles
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