A predictive control approach to diesel Selective Catalytic Reduction

J. Sowman, Dina Shona Laila, A. J. Cruden, P. Fussey, A. Truscott

    Research output: Contribution to conferencePaper

    6 Citations (Scopus)


    Reduction of oxides of nitrogen (NOx) emitted from diesel exhaust systems is a current problem due to increased stringency in worldwide emissions legislation. One of the most successful approaches to reduce tailpipe NOx is to reduce NOx by ammonia over a catalyst, known as Selective Catalytic Reduction (SCR). Control of the ammonia injection in such systems is typically a map-based approach, often augmented by feedback from NOx sensors to account for mechanical variation and ageing. We show that a predictive control approach to this system yields several compelling improvements over such industry standard controllers during a representative test cycle. These include better NOx conversion performance whilst simultaneously minimising the quantity of ammonia released to the environment, along with reduced design effort.
    Original languageEnglish
    Pages3073 - 3078
    Publication statusPublished - 23 Nov 2015
    EventEuropean Control Conference (ECC) - Linz, Austria
    Duration: 15 Jul 201517 Jul 2015


    ConferenceEuropean Control Conference (ECC)

    Bibliographical note

    The full text is currently unavailable on the repository.


    • Thyristors
    • Mathematical model
    • Sensors
    • Predictive models
    • Diesel engines
    • Inductors
    • Predictive control
    • predictive control
    • air pollution control
    • ammonia
    • catalysis
    • chemical variables control
    • diesel engines
    • exhaust systems
    • feedback
    • NH3
    • predictive control approach
    • diesel selective catalytic reduction
    • nitrogen oxide reduction
    • NOx emission
    • diesel exhaust system
    • emissions legislation
    • tailpipe NOx reduction
    • ammonia injection control
    • map-based approach
    • NOx sensor feedback
    • mechanical variation
    • ageing
    • NOx conversion performance
    • ammonia release minimisation
    • NOx
    • NOx Reduction
    • Selective Catalytic Reduction
    • Predictive Control
    • Exhaust Aftertreatment
    • Emissions Reduction


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