CUED Publications database

Transient Evaluation of Two-Stage Turbocharger Configurations using Model Predictive Control

Dickinson, PB and Glover, K and Collings, N and Yamashita, Y and Yashiro, Y and Hoshi, T (2015) Transient Evaluation of Two-Stage Turbocharger Configurations using Model Predictive Control. In: UNSPECIFIED.

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Abstract

© 2015 SAE Japan. There is a trend towards increasing the degree of engine downsizing due to its potential for reducing fuel consumption and hence lowering CO 2 emissions. However, downsizing introduces significant challenges for the engine airpath hardware and control, if driveability is to be maintained at an acceptable level. The transient response of the engine is affected by both the hardware selection and the associated controller. In order to understand the potential performance and limitations of the possible airpath hardware, a mean value model of the engine under consideration can be utilized. One benefit of these models is that they can be used as the basis of a model predictive controller which gives close to optimal performance with minimal tuning effort. In this paper we examine different two-stage series sequential turbocharger arrangements. The benefits of the mean value engine model, together with a model based controller are shown to observe the system and actuator constraints and demonstrate the best achievable performance for several configurations. This systematic approach to system evaluation is invaluable for comparing system performance without the risk of the controller prejudicing the result or requiring an excessive amount of tuning.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div F > Control
Div A > Energy
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:26
Last Modified: 02 Nov 2017 01:36
DOI: