Influence of State of Charge Estimation Uncertainty on Energy Management Strategies for Hybrid Electric Vehicles
Paper in proceeding, 2011

This paper studies how the optimal energy management of a hybrid electric vehicle and a plug-in hybrid electric vehicle is affected by uncertain estimates of the battery state of charge. A simple model for the battery dynamics and the state of charge estimation is postulated, inspired by the known characteristics of previously proposed estimation schemes. Based on the assumption that the drive cycle is perfectly known, the effects of state of charge estimation uncertainty is studied by including the estimation uncertainty in the optimization of the energy management strategy. The simulations indicate lower battery usage and higher fuel consumption as the estimation uncertainty increases.

Energy Management

Estimation Uncertainty

Hybrid Electric Vehicles


Viktor Larsson

Chalmers, Signals and Systems, Systems and control

Lars Johannesson

Chalmers, Signals and Systems, Systems and control

Bo Egardt

Chalmers, Signals and Systems, Systems and control

IFAC Proceedings Volumes (IFAC-PapersOnline)

14746670 (ISSN)

Vol. 18 PART 1 9703-9708
978-390266193-7 (ISBN)

Driving Forces

Sustainable development

Areas of Advance



Subject Categories

Control Engineering





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