CUED Publications database

Model based control for closed loop testing of 1-D engine simulation models

Cieslar, D and Darlington, A and Glover, K and Collings, N (2012) Model based control for closed loop testing of 1-D engine simulation models. IFAC Proceedings Volumes (IFAC-PapersOnline). pp. 482-489. ISSN 1474-6670

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Abstract

1-D engine simulation models are widely used for the analysis and verification of air-path design concepts and prediction of the resulting engine transient response. The latter often requires closed loop control over the model to ensure operation within physical limits and tracking of reference signals. For this purpose, a particular implementation of Model Predictive Control (MPC) based on a corresponding Mean Value Engine Model (MVEM) is reported here. The MVEM is linearised on-line at each operating point to allow for the formulation of quadratic programming (QP) problems, which are solved as the part of the proposed MPC algorithm. The MPC output is used to control a 1-D engine model. The closed loop performance of such a system is benchmarked against the solution of a related optimal control problem (OCP). As an example this study is focused on the transient response of a light-duty car Diesel engine. For the cases examined the proposed controller implementation gives a more systematic procedure than other ad-hoc approaches that require considerable tuning effort. © 2012 IFAC.

Item Type: Article
Uncontrolled Keywords: Computer-aided design Internal combustion engines Model-based control Optimal control Predictive control Transient response
Subjects: UNSPECIFIED
Divisions: Div A > Energy
Div F > Control
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:02
Last Modified: 08 Dec 2014 02:18
DOI: 10.3182/20121023-3-FR-4025.00005