Predictive performance estimation for a dual-battery system in mild-hybrid vehicles
Continuously increasing requirements for on-board system performances lead to new topologies for the energy distribution in vehicles. One promising concept is the usage of a dual-battery system instead of the conventional lead-acid “starting lightening ignition” battery. As this system is not able t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | deu |
| Published: |
Copernicus Publications
2016-09-01
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| Series: | Advances in Radio Science |
| Online Access: | http://www.adv-radio-sci.net/14/77/2016/ars-14-77-2016.pdf |
| Summary: | Continuously increasing requirements for on-board system performances lead to
new topologies for the energy distribution in vehicles. One promising concept
is the usage of a dual-battery system instead of the conventional lead-acid
“starting lightening ignition” battery. As this system is not able to
control the current share between the two batteries, its performance depends
on the actual battery specific operating points.The initial conditions of
state of charge, voltage level and temperature influence the current share
and lead to a different voltage drop of the system. This paper yields to, the
basic understanding of the current share between the two batteries. The
conventional performance estimation method for standalone lead-acid batteries
can no longer be applied to this system. Therefore, a new algorithm for the
voltage drop calculation of the dual-battery system is proposed. Measurements
at different temperatures, states of charge and voltage levels show the
system behavior and prove the functionality of the algorithm. |
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| ISSN: | 1684-9965 1684-9973 |