Utilization of the battery recovery effect in hybrid and electric vehicle applications

Author

Baumgardt, Andreas ; Bachheibl, Florian ; Gerling, Dieter

Author_Institution

Univ. of Fed. Defense Munich, Neubiberg, Germany

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

254

Lastpage

260

Abstract

The battery recovery effect causes a regain in battery voltage when load is interrupted. The possibility of harnessing this effect in automotive applications to increase range, reduce battery size or extend battery life is investigated. The characteristics of the battery recovery effect are studied in a laboratory setup. Especially the impact of discharge pulse characteristics, the battery´s state of charge and the cell temperature are determined. Subsequently, an improved model considering the battery recovery effect is presented and validated with measurement results. Finally various measurements are used to determine whether it is possible to extract more energy from a battery by utilizing the battery recovery effect.

Keywords

battery powered vehicles; hybrid electric vehicles; secondary cells; temperature measurement; automotive applications; battery life extension; battery recovery effect utilization; battery size reduction; battery state-of-charge determination; cell temperature determination; discharge pulse characteristics; electric vehicle applications; hybrid vehicle applications; Batteries; Battery charge measurement; Current measurement; Discharges (electric); Electrodes; System-on-chip; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7013474

Filename

7013474