Control and constraint of NOx emissions during transient manœuvres, based on an engine combustion model

Fussey, Peter and Limebeer, David (2014) Control and constraint of NOx emissions during transient manœuvres, based on an engine combustion model. SAE International Journal of Engines, 7 (2). pp. 956-967. ISSN 1946-3944

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Abstract

Setting up engines to meet emissions limits often involves extensive steady-state calibration activities combined with ad-hoc strategies to compensate for transient operation. As engines become more complex and acceptable emissions levels ever lower, this task is becoming increasingly time consuming and expensive. The inclusion of models in the engine control units offers a way to reduce some of this calibration effort. Model-based control is an active area of research with advanced approaches now being proposed. One example is the use of real-time models to regulate the burn angle during transient manoeuvres. This paper describes the application of a control-orientated combustion model to control directly emissions during transients. The model is used to optimize and constrain the NOx emissions directly, rather than controlling an inferred variable such as the burn angle. This has the benefit that calibration engineers will be able to set the emissions trade-off directly.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ0212 Control engineering systems. Automatic machinery (General)
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL0001 Motor vehicles.Cycles
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Depositing User: Peter Fussey
Date Deposited: 14 May 2018 09:31
Last Modified: 20 Feb 2019 11:48
URI: http://sro.sussex.ac.uk/id/eprint/75686
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