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Energies 2014, 7(2), 934-960; doi:10.3390/en7020934

Research on the Power Management Strategy of Hybrid Electric Vehicles Based on Electric Variable Transmissions

1
State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
2
Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
*
Author to whom correspondence should be addressed.
Received: 12 December 2013 / Revised: 26 January 2014 / Accepted: 14 February 2014 / Published: 21 February 2014
(This article belongs to the Special Issue Advances in Hybrid Vehicles)

Abstract

Electric variable transmission is a new electromechanical energy conversion device structure, which is especially suitable as the driving force distribution device for hybrid electric vehicles. This paper focuses on the power management strategy of hybrid electric vehicles based on an electric variable transmission, and a kind of hierarchical control ideology is proposed. The control strategy is composed of four control levels, namely analysis of force requirement, operation mode switching, force distribution and coordinate control, which are designed respectively in this paper. Then a simulation model is built based on the notion of energetic macroscopic representation, and an experimental test bench is built. The simulation and experiment results demonstrate the feasibility of the proposed strategy, and it can be taken as a new theory and method for the study of hybrid electric vehicle based on electric variable transmission.
Keywords: hybrid electric vehicle; electric variable transmission; power management strategy; operation mode switching; coordinate control hybrid electric vehicle; electric variable transmission; power management strategy; operation mode switching; coordinate control
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

Xu, Q.; Cui, S.; Song, L.; Zhang, Q. Research on the Power Management Strategy of Hybrid Electric Vehicles Based on Electric Variable Transmissions. Energies 2014, 7, 934-960.

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