Scott, J., Pennington, K., Schwarz, S. & Rowe, P. (2011). Vehicle lead-acid battery state-of-charge meter. To be published in the Proceedings of the 37th IEEE International Conference on Industrial Electronics, 7-10 November 2011, Melbourne Australia.
Permanent Research Commons link: https://hdl.handle.net/10289/5850
We describe a state-of-charge, or “residual-capacity” meter for lead-acid batteries that intelligently synthesizes coulometric and terminal-voltage methods in a new algorithm to provide reliable, continuous readout of remaining capacity. Novel electronic circuit design eliminates the need to install a shunt in the vehicle. The meter learns the characteristics of a battery to which it is attached, removing the need for setup, customisation, programming or calibration at time of installation or battery replacement. The meter can thus be installed by unqualified personnel. Initial measurements suggest the design to be robust and accurate.
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