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Fuel Efficient Speed Profiles for Finite Time Gear Shift with Multi-Phase Optimization
Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-1584-8165
Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-8646-8998
Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, The Institute of Technology.
2013 (English)In: 54th SIMS Conference on Simulation and Modelling, SIMS 2013, 2013Conference paper, Published paper (Refereed)
Abstract [en]

A method that finds fuel optimal speed profiles for traveling a predefined distance is presented. The vehicle is modeled using a quasistatic formulation and an optimal control problem is defined. In addition, the solving method is based on a multi-phase optimization algorithm based on dynamic programming. This approach results in lower computational time than solving the problem directly with dynamic programming, it also makes the computational time independent of the travel distance. In addition, the simulation generated data can be used to get the solution to several optimal control problems in parallel that have additional constraints. Further a finite time gear shift model is presented to include the gear selection in the optimization problem. The problem also considers speed losses and fuel consumption during the maneuver. The results presented show the optimal speed and gear profiles to cover a distance, making special emphasis at the acceleration phase, where it is optimal to perform a fast acceleration to engage the highest gear as soon as possible. Finally a proposed application is to use the simulation data to provide eco-driving tips to the driver.

Place, publisher, year, edition, pages
2013.
Keywords [en]
Dynamic Programming, Simulation, Eco-driving
National Category
Vehicle Engineering Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-136805OAI: oai:DiVA.org:liu-136805DiVA, id: diva2:1091223
Conference
The 54th SIMS conference on Simulation and Modelling, Bergen, Norway, October 16-18, 2013
Available from: 2017-04-26 Created: 2017-04-26 Last updated: 2017-06-02Bibliographically approved

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CiteExportLink to record
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