Fuel Saving Potential of Optimal Engine Cooling System
2014 (English)Conference paper (Refereed)
The engine cooling system in trucks is one of the main sources of parasite load. Thus optimal control of the engine thermal management system with the objective of minimizing energy consumption can substantially improve fuel efficiency. Existing methods on the engine thermal control system concentrate mainly on regulating the engine coolant temperature within a safety range. This paper explicitly calculates the energy consumption of the cooling system using the optimal control methods to decide the trajectories of the control values of the cooling system. During the optimal operation, the engine cooling system serves as another energy buffer to balance the engine workload in conventional trucks. To expose the maximal fuel saving potential of the optimal engine thermal control system, we apply dynamic programming in the investigation and the results are compared with a simple state feedback controller.
Place, publisher, year, edition, pages
Society of Automotive Engineers, 2014.
Energy efficient vehicles
IdentifiersURN: urn:nbn:se:kth:diva-170378OAI: oai:DiVA.org:kth-170378DiVA: diva2:828093
AVEC 2014 International symposium on advanced vehicle control, September 22-26, 2014
QC 201507152015-06-292015-06-292016-01-28Bibliographically approved