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Turbocharger Speed Estimation via Vibration Analysis
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
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2016 (English)In: SAE Technical Papers, Vol. 2016-April, no AprilArticle in journal (Refereed) Published
Abstract [en]

Due to demanding legislation on exhaust emissions for internal combustion engines and increasing fuel prices, automotive manufacturers have focused their efforts on optimizing turbocharging systems. Turbocharger system control optimization is difficult: Unsteady flow conditions combined with not very accurate compressor maps make the real time turbocharger rotational speed one of the most important quantities in the optimization process. This work presents a methodology designed to obtain the turbocharger rotational speed via vibration analysis. Standard knock sensors have been employed in order to achieve a robust and accurate, yet still a low-cost solution capable of being mounted on-board. Results show that the developed method gives an estimation of the turbocharger rotational speed, with errors and accuracy acceptable for the proposed application. The method has been evaluated on a heavy duty diesel engine.

Place, publisher, year, edition, pages
SAE International , 2016. Vol. 2016-April, no April
National Category
Mechanical Engineering
URN: urn:nbn:se:kth:diva-195058DOI: 10.4271/2016-01-0632ScopusID: 2-s2.0-84975284867OAI: diva2:1051495
SAE 2016 World Congress and Exhibition, Detroit, United States, 12 April 2016 through 14 April 2016

QC 20161202

Available from: 2016-12-02 Created: 2016-11-01 Last updated: 2016-12-02Bibliographically approved

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Crescenzo, DomenicoArco Sola, JavierWu, HongwenCronhjort, Andreas
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KTHMachine Design (Dept.)Internal Combustion Engines
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