Management of kinetic and electric energy in heavy trucks
2010 (English)In: Transmission and Driveline, 2010, SAE International , 2010Conference paper (Refereed)
Hybridization and velocity management are two important techniques for energy efficiency that mainly have been treated separately. Here they are put in a common framework that from the hybridization perspective can be seen as an extension of the equivalence factor idea in the well known strategy ECMS. From the perspective of look-ahead control, the extension is that energy can be stored not only in kinetic energy, but also electrically. The key idea is to introduce more equivalence factors in a way that enables efficient computations, but also so that the equivalence factors have a physical interpretation. The latter fact makes it easy to formulate a good residual cost to be used at the end of the look-ahead horizon. The formulation has different possible uses, but it is here applied on an evaluation of the size of the electrical system. Previous such studies, for e.g. ECMS, have typically used a driving cycle, i.e. a fixed velocity profile, but here the extra freedom to choose an optimal driving pattern is added.
Place, publisher, year, edition, pages
SAE International , 2010.
automotive control, predictive control, fuel-optimal control, hybrid electric vehicles, energy management
Engineering and Technology Computer and Information Science Control Engineering
IdentifiersURN: urn:nbn:se:liu:diva-54921DOI: 10.4271/2010-01-1314ISBN: 978-0-7680-3425-7OAI: oai:DiVA.org:liu-54921DiVA: diva2:311567
SAE 2010 World Congress & Exhibition, April 2010, Detroit, MI, USA, Session: Transmission and Driveline: Hybrid