Extending energy management in hybrid electric vehicles with explicit control of gear shifting and start-stop

V. Reeven, van, T. Hofman, R. Huisman, M. Steinbuch

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

13 Citations (Scopus)
5 Downloads (Pure)


The Energy Management System (EMS) in Hybrid Electric Vehicles (HEV) determines the optimal use of the available power resources to reduce the total fuel energy over a drive cycle. A real-time EMS that includes start-stop and gear selection in an optimal control framework, could not be found in literature. In this paper, a model-based controller is designed that solves the optimal control problem for a given equivalency between the energy sources, including the discrete control of start-stop and shifting. By approximating a validated vehicle model with piecewise affine functions, the controller converts to a Mixed-Integer Linear Program (MILP), which can be explicitly solved and stored on a real-time controller. In simulation the controller is able to outperform an EMS with heuristic control of start-stop and shifting: on a proprietary drive cycle, the number of gear shift events is reduced by 42%, the number of start-stop events is reduced by 6%, while at the same time fuel economy is improved by 0.3%
Original languageEnglish
Title of host publicationProceedings of the American Control Conference, June 27-29, 2012, Montreal, Canada
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Print)978-1-4673-2102-0
Publication statusPublished - 2012
Event2012 American Control Conference, ACC 2012 - Fairmont Queen Elizabeth, Montreal, Canada
Duration: 27 Jun 201229 Jun 2012


Conference2012 American Control Conference, ACC 2012
Abbreviated titleACC 2012
Internet address


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