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Energies 2010, 3(10), 1673-1690; doi:10.3390/en3101673

Energy Recovery for the Main and Auxiliary Sources of Electric Vehicles

1
Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Chang’an University, Xi’an 710064, China
2
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
*
Author to whom correspondence should be addressed.
Received: 20 August 2010 / Revised: 24 September 2010 / Accepted: 28 September 2010 / Published: 8 October 2010
(This article belongs to the Special Issue Hybrid Vehicles)
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Abstract

Based on the traditional regenerative braking electrical circuit, a novel energy recovery system for the main and auxiliary sources of electric vehicles (EVs) has been developed to improve their energy efficiency. The electrical circuit topology is presented in detail. During regenerative braking, the recovered mechanical energy is stored in both the main source and the auxiliary source at the same time. The mathematical model of the proposed system is derived step by step. Combining the merits and defects of H2 optimal control and H robust control, a H2/H controller is designed to guarantee both the system performance and robust stability. The perfect match between the simulated and experimental results validates the notion that the proposed novel energy recovery system is both feasible and effective, as more energy is recovered than that with the traditional energy recovery systems, in which recovered energy is stored only in the main source.
Keywords: energy recovery; main and auxiliary sources; electric vehicle; DC/DC converter; electrical circuit energy recovery; main and auxiliary sources; electric vehicle; DC/DC converter; electrical circuit
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Ye, M.; Jiao, S.; Cao, B. Energy Recovery for the Main and Auxiliary Sources of Electric Vehicles. Energies 2010, 3, 1673-1690.

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