Design of an efficient algorithm for fuel-optimal look-ahead control
2010 (English)In: Control Engineering Practice, ISSN 0967-0661, Vol. 18, no 11, 1318-1327 p.Article in journal (Refereed) Published
A fuel-optimal control algorithm is developed for a heavy diesel truck that utilizes information about the road topography ahead of the vehicle when the route is known. A prediction model is formulated where special attention is given to properly include gear shifting. The aim is an algorithm with sufficiently low computational complexity. To this end, a dynamic programming algorithm is tailored, and complexity and numerical errors are analyzed. It is shown that it is beneficial to formulate the problem in terms of kinetic energy in order to avoid oscillating solutions and to reduce linear interpolation errors. A residual cost is derived from engine and driveline characteristics. The result is an on-board controller for an optimal velocity profile and gear selection.
Place, publisher, year, edition, pages
Elsevier , 2010. Vol. 18, no 11, 1318-1327 p.
automotive control, long haulage truck, dynamic programming, predictive control
National CategoryEngineering and Technology Computer and Information Science Control Engineering
IdentifiersURN: urn:nbn:se:liu:diva-54917DOI: 10.1016/j.conengprac.2009.12.008ISI: 000284670800009OAI: oai:DiVA.org:liu-54917DiVA: diva2:311561
Original Publication: Erik Hellström, Jan Åslund and Lars Nielsen, Design of an efficient algorithm for fuel-optimal look-ahead control, 2010, Control Engineering Practice. http://dx.doi.org/10.1016/j.conengprac.2009.12.008 Copyright: Elsevier Science B.V., Amsterdam. http://www.elsevier.com/2010-04-222010-04-212012-10-01