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Approximate Dynamic Programming Methods in HEVs
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Hybrid Electric Vehicles (HEV) have been gaining popularity worldwide for their efficient fuel consumption and therefore an overall reduction in the oil demand. This greatly benefits the environment since this leads to lesser emissions and hence lower greenhouse effect. Therefore research in this field is very active with a demand for new and better fuel consumption strategies. Many different methods for the energy management of HEV are being used, one particular method which promises global optimality is Dynamic Programming. Dynamic Programming yields a global optimum results but suffers from high computation cost. Among the different methods to counter this curse of dimensionality one of the popular is Approximate Dynamic Programming (ADP). This thesis investigates the literature on the different methods of ADP applied to HEV and an implementation showing a reduction in the computation time for a specific HEV energy management problem.

Abstract [sv]

Elhybridfordon (HEV) har ökat i popularitet över hela världen pga sin låga bränsleförbrukning, vilket har minskat efterfrågan på olja. Detta gynnar i hög grad miljön, eftersom detta leder till mindre utsläpp och följaktligen en lägre växthuseffekt. Därför pågår aktiv forskning inom detta område med en ökad efterfrågan på nya och bättre strategier för bränsleförbrukning. Många olika metoder för energihantering av HEV använder en särskild metod; dynamisk programmering. Dynamisk programmering ger ett optimalt globalt resultat men på bekostnad av längre beräkningstider. Den mest använda metoden för att motverka denna typ av problematik i högdimensionella system är Approximate Dynamic Programming (ADP). Denna avhandling undersöker och beskriver litteraturen på de olika metoderna för ADP tillämpade på HEV samt en genomförandefas som visar en minskning av beräkningstiden för ett HEV-problem gällande energihantering.

Place, publisher, year, edition, pages
2015. , 64 p.
Series
TRITA-MMK, ISSN 1400-1179 ; 2015:92 MDA 504
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-182762OAI: oai:DiVA.org:kth-182762DiVA: diva2:905783
Supervisors
Examiners
Available from: 2016-03-07 Created: 2016-02-23 Last updated: 2016-03-07Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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