Efficient Vehicle Power Supply by Adaptive Energy, Charge and Heat Management of an Alternator - Super Capacitor System
Date Published: 2009-04-20
Paper Number:2009-01-1094
DOI: 10.4271/2009-01-1094
Citation:
Brabetz, L., Ayeb, M., and Tellmann, D., "Efficient Vehicle Power Supply by Adaptive Energy, Charge and Heat Management of an Alternator - Super Capacitor System," SAE Int. J. Passeng. Cars - Electron. Electr. Syst. 2(1):359-366, 2009, doi:10.4271/2009-01-1094.
The power requirements of future vehicle electrical distribution systems will increase considerably. Consequently, electrical energy has a major impact on the overall vehicle energy balance, so its generation and storage must be as efficient as possible.
The presented concept is based on a voltage-controlled alternator in combination with super capacitors and a corresponding energy management system. The focus is energy efficiency, recuperation, and the use of standard components. A specific hardware in the loop based test set-up was built that allows the control and monitoring of the mechanical and electrical energy flows. Besides the theoretical description, the paper presents first experimental data and results followed by a discussion of the next steps and future potentials.
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