Convex modeling for optimal battery sizing and control of an electric variable transmission powertrain

This paper provides convex modeling steps for the problem of optimal battery sizing and energy management of a plug-in hybrid electric vehicle with an electric variable transmission. Optimal energy management is achieved by a switched model control, with driving modes identified by the engine on/off...

Full description

Saved in:
Bibliographic Details
Published inOil & gas science and technology Vol. 74; p. 25
Main Authors Ma, Zetao, Murgovski, Nikolce, Egardt, Bo, Cui, Shumei
Format Journal Article
LanguageEnglish
Published Paris EDP Sciences 2019
Institut Français du Pétrole (IFP)
Subjects
Convexity
Driving ability
Electric vehicles
Energy management
Fossil fuels
Hybrid electric vehicles
Hybrid modes
Modelling
Optimization
Physics
Powertrain
Sizing
Torque
Online AccessGet full text

Cover

More Information
Summary:This paper provides convex modeling steps for the problem of optimal battery sizing and energy management of a plug-in hybrid electric vehicle with an electric variable transmission. Optimal energy management is achieved by a switched model control, with driving modes identified by the engine on/off state. In pure electric mode, convex optimization is used to find the optimal torque split between two electric machines, in order to maximize powertrain efficiency. In hybrid mode, optimization is performed in a bilevel program. One level optimizes speed of a compound unit that includes the engine and electric machines. Another level optimizes the power split between the compound unit and the battery. The proposed method is used to minimize the total cost of ownership of a passenger vehicle for a daily commuter, including costs for battery, fossil fuel and electricity.
ISSN:1294-4475
1953-8189
1953-8189
2804-7699
DOI:10.2516/ogst/2018104