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Optimal Powertrain Control of a Heavy-Duty Vehicle Under Varying Speed Requirements
KTH, School of Electrical Engineering (EES), Automatic Control. Scania CV AB, Sweden.ORCID iD: 0000-0003-2923-986X
Scania CV AB.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Industrial Engineering and Management (ITM), Centres, Integrated Transport Research Lab, ITRL.ORCID iD: 0000-0002-3672-5316
2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Reducing the fuel consumption is a major issue in the vehicle industry. In this paper, it is done by formulatinga driving mission of a heavy-duty truck as an optimal control problem and solving it using dynamic programming.The vehicle model includes an engine and a gearbox with parameters based on measurements in test cells. The dynamic programming algorithm is solved by considering four specifictypes of transitions: transitions between the same gear, coastingin neutral gear, coasting with a gear engaged with no fuel injection and transitions involving gear changes. Simulations are performed on a driving cycle commonly used for testing distribution type of driving. In order to make sure that the truck does not deviate too much from a normal way of driving, restrictions on maximum and minimum allowed velocities are imposed based on statistics from real traffic data. The simulations show that 12.7% fuel can be saved without increasing the trip time by allowing the truck to engage neutral gear and make small deviations from the reference trajectory.

Place, publisher, year, edition, pages
IEEE, 2017.
Keyword [en]
Optimal control, heavy-duty vehicles, powertrain
National Category
Control Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-220134OAI: oai:DiVA.org:kth-220134DiVA: diva2:1166560
Conference
2017 IEEE 20th International Conference on Intelligent Transportation Systems (ITSC)
Funder
VINNOVA, 2015-02325
Note

QC 20180117

Available from: 2017-12-15 Created: 2017-12-15 Last updated: 2018-01-17Bibliographically approved

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Authority records BETA

Mårtensson, Jonas

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CiteExportLink to record
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