The auto industry is progressing towards hybrid and fully electric vehicles in their future car models. These vehicles need a power plant that is reliable during the lifetime of the car. Battery and ultra-capacitor capacity imbalances stemming from manufacturing and ensuing driving environment and operational usage affect voltage levels, which must adhere to strict limits to ensure the safety of the driver. A double-tiered capacitive shuttling technique is applied to an idealized three-battery system simulation in order to balance the voltages. Parameters in the system are varied and their effects on the system determined. Results are compared to a single-tiered approach. Simulation shows a substantial improvement in charge transport using the new topology. Experimental results verifying simulation are presented.
M. Ferdowsi and A. Baughman, "Analysis of the Double-Tiered Three-Battery Switched Capacitor Battery Balancing System," Proceedings of the IEEE Vehicle Power and Propulsion Conference, 2006, Institute of Electrical and Electronics Engineers (IEEE), Sep 2006.
The definitive version is available at http://dx.doi.org/10.1109/VPPC.2006.364284
IEEE Vehicle Power and Propulsion Conference, 2006
Electrical and Computer Engineering
Article - Conference proceedings
© 2006 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.