Comparison of recuperation strategies for electric vehicles regarding energy efficiency

Improvement of the cruising range is one of the main research challenges regarding fully electric vehicles, as the comparably low range is seen as one of the major disadvantages and therefore prevents sales. An optimised recuperation strategy can help to enlarge the range without an extension of the accumulator capacity. In this paper, different recuperation strategies are illustrated and discussed. A simulation model for the analysis of the influence of the recuperation strategy on the energy efficiency is introduced. The possible energy savings by different recuperation strategies can be examined for several driving cycles and user behaviours. First results of the simulations are presented in this paper.