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AN ORIGINAL STATE OF CHARGE GAUGE FOR NICKEL- CADMIUM TRACTION BATTERIES ASSOCIATING A COULOMETRIC MEASUREMENT WITH IMPEDANCEMETRY
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| Author(s) |
E. Rullière; S. Nugues; E. Toutain |
| Abstract |
A coulometric measurement of available energy in a traction battery is not accurate enough because of the influence of current, temperature, ageing, self-discharge, ... This is why we present a method including a classical Ampere-hours measurement and an impedance measurement at given frequencies; an experimental bench had to be realized in order
to measure the impedance of batteries at differents frequencies and differents states of charge (SOC). Also, an analysis of the results had to be done in order to choose a good measurement strategy (i.e. deduce the SOC with a good accuracy and a minimum of experiments). |
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| Filename: | Unnamed file |
| Filesize: | 338.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-02-22 by System |
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