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An Optimal Energy Management System for Electric Vehicles Hybridized With Supercapacitor

[+] Author Affiliations
Parisa Golchoubian, Nasser L. Azad

University of Waterloo, Waterloo, ON, Canada

Paper No. DSCC2015-9888, pp. V001T10A004; 7 pages
  • ASME 2015 Dynamic Systems and Control Conference
  • Volume 1: Adaptive and Intelligent Systems Control; Advances in Control Design Methods; Advances in Non-Linear and Optimal Control; Advances in Robotics; Advances in Wind Energy Systems; Aerospace Applications; Aerospace Power Optimization; Assistive Robotics; Automotive 2: Hybrid Electric Vehicles; Automotive 3: Internal Combustion Engines; Automotive Engine Control; Battery Management; Bio Engineering Applications; Biomed and Neural Systems; Connected Vehicles; Control of Robotic Systems
  • Columbus, Ohio, USA, October 28–30, 2015
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-5724-3
  • Copyright © 2015 by ASME


In this study, the potential merits of integrating a supercapacitor into an electric vehicle (EV), namely a Toyota RAV4 EV, is investigated. In particular, the impacts of energy management system (EMS) with a buffer scheme and a dynamic programming (DP)-based control law on the vehicle performance characteristics are examined and compared to the vehicle with no supercapacitor in use. While the simulation results show improvements in the vehicle’s driving range and heat loss for the both considered EMSs, the DP-based controller significantly outperforms the buffer policy. The investigations also demonstrate promising results regarding the use of supercapacitors in EVs, intriguing interest for further studies on online control strategies for these systems.

Copyright © 2015 by ASME



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