This contribution describes the implementation of a real time capable, flexible and accurate Electric Vehicle model to evaluate charging services and methods in large scale applications. Based on fully transient measurements of the charging process of electric vehicles a model building method has been developed and applied. This modelling approach bases on the parameterization of different phases of the charging process which then is fed into an electric vehicle charging behavior model which can be executed in real time. The proposed modelling method is described in detail and validated against real measurements and charging behavior showing that the taken approach provides a valuable and flexible model for the emulation and simulation of the charging process of electric vehicles.