Title: Intelligent power management of plug-in hybrid electric vehicles, part II: real-time route based power management

Authors: Mahyar Vajedi; Maryyeh Chehrehsaz; Nasser L. Azad

Addresses: Systems Design Engineering, University of Waterloo, ON N2L 3G1, Canada ' Systems Design Engineering, University of Waterloo, ON N2L 3G1, Canada ' Systems Design Engineering, University of Waterloo, ON N2L 3G1, Canada

Abstract: PHEVs are considered as a viable solution to address environmental concerns facing the global automotive industry. In this paper, we design a new real-time route-based power management system for PHEVs based on the adaptive equivalent consumption minimisation strategy (A-ECMS). The designed controller takes advantage of preview trip information to achieve even higher efficiencies. To evaluate the designed system, this controller was assigned to a high fidelity model of Toyota Prius Plug-in Hybrid built in Autonomie. The results are compared against those of several existing power management systems, including: charge depleting charge sustaining (CDCS), manual CDCS, and rule-based strategies as well as Pontryagin's minimum principle (PMP). While PMP efficiency is slightly higher than the new controller, the real-time power management system proved more reliable in terms of the computational time. It is shown that route based power management strategy improved the fuel economy up to 11% compared to the rule-based controller within Autonomie.

Keywords: ECMS; equivalent consumption minimisation strategy; real-time control; PHEV; plug-in HEVs; hybrid electric vehicles; hybrid vehicles; route-based power management; trip information preview; intelligent power management; controller design; fuel economy.

DOI: 10.1504/IJEHV.2014.062806

International Journal of Electric and Hybrid Vehicles, 2014 Vol.6 No.1, pp.68 - 86

Received: 03 Oct 2013
Accepted: 19 Dec 2013
Published online: 18 Jun 2014 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article