文章基本信息

标题：Real-time control of a two-stage serial VGT Diesel engine using MPC
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作者：Paul Dickinson ; Keith Glover ; Nick Collings 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2015
卷号：48
期号：15
页码：117-123
DOI：10.1016/j.ifacol.2015.10.017
语种：English
出版社：Elsevier
摘要：AbstractReal-time model predictive control (MPC) is used to experimentally assess the transient air-path performance of a two-stage serial variable geometry turbocharger (VGT) fitted to a light duty Diesel engine. The control model is based on a mean value engine model (MVEM) that is developed using data from the engine with a single stage turbocharger and modified to simulate the two-stage arrangement. A tip-in transient manoeuvre is used to assess system performance, in particular the boost-control where MPC is used to achieve close to optimal performance. This paper explores the improvement in transient performance when using two VGT turbochargers in series and considers where the differences between experiment and simulation occur.In general it is shown that there is good agreement between the experimental and simulated system performance. It is observed that the VGT actuator position must be well matched to the modelled position to achieve good on-engine performance. Other factors which affect the experimental performance are related to the actuator dynamics, cyclic-behaviour of the realtime pressure states, time-constants effecting the temperature measurement and the difficulty in accurately modelling the heat transfer in the exhaust, turbines and housings.
关键词：KeywordsModel-based controlPredictive controlBoost ControlTwinchargerTurbochargerSequential Turbocharging