Including a Battery State of Health model in the HEV component sizing and optimal control problem
Paper in proceeding, 2013

This paper studies convex optimization and modelling for component sizing and optimal energy management control of hybrid electric vehicles. The novelty in the paper is the modeling steps required to include a battery wear model into the convex optimization problem. The convex modeling steps are described for the example of battery sizing and simultaneous optimal control of a series hybrid electric bus driving along a perfectly known bus line. Using the proposed convex optimization method and battery wear model, the city bus example is used to study a relevant question: is it better to choose one large battery that is sized to survive the entire lifespan of the bus, or is it beneficial with several smaller replaceable batteries which could be operated at higher c-rates?

hybrid electric vehicle

convex optimization


optimal dimensioning and control

battery state of health


Lars Johannesson

Chalmers, Signals and Systems, Systems and control

Nikolce Murgovski

Chalmers, Signals and Systems, Systems and control

Soren Ebbesen

Swiss Federal Institute of Technology in Zürich (ETH)

Bo Egardt

Chalmers, Signals and Systems, Systems and control

Esteban Gelso

Group Trucks Technology

Jonas Hellgren

Group Trucks Technology

IFAC Proceedings Volumes (IFAC-PapersOnline)

14746670 (ISSN)

Vol. 7 1 398-403
978-390282343-4 (ISBN)

Driving Forces

Sustainable development

Areas of Advance



Subject Categories

Computational Mathematics

Control Engineering





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