Diesel Engine Transient NOx and Airpath Control using Rate-based Model Predictive Controller. Issue 10 (2021)

• Record Type: Journal Article
• Authors: Duraiarasan, Saravanan; Stefanopoulou, Anna; Middleton, Robert; Salehi, Rasoul; Mahesh, Siddharth; Allain, Marc
• Is Part Of: IFAC-PapersOnLine. Volume 54:Issue 10(2021)
• Page Start: 21
• Page End: 26
• Publication Date: 2021
• Subjects: Engine control -- Engine modeling -- Model-based control -- Optimal control -- Predictive control; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2021.10.135
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: This paper presents a rate-based model predictive control (MPC) design to track a fuel optimal reference intake manifold pressure ( P im ) without violating tailpipe oxides of Nitrogen ( NO x ) constraints utilizing dynamic linear air path and NO x model for one-step ahead prediction of a heavy-duty diesel engine. Hardware-in-the-loop experimental validation shows efficient tracking of desired intake manifold pressure with 1.4 % reduction in brake-specific fuel consumption, 2 % reduction in brake-specific engine-out NO x, 40 % reduction in brake-specific tailpipe NO x, and 6 % reduction in brake-specific urea consumption. This short horizon controller with minimal computational load can be either used as a standalone P im controller with emission constraint or in a hierarchical controller architecture.