Development of Analytical Algorithm for the Performance Analysis of Power Train System of an Electric Vehicle
Power train system design is one of the key R&D areas on the development process of new automobile because an optimum size of engine with adaptable power transmission which can accomplish the design requirement of new vehicle can be obtained through the system design. Especially, for the electric vehicle design, very reliable design algorithm of a power train system is required for the energy efficiency. In this study, an analytical simulation algorithm is developed to estimate driving performance of a designed power train system of an electric. The principal theory of the simulation algorithm is conservation of energy with several analytical and experimental data such as rolling resistance, aerodynamic drag, mechanical efficiency of power transmission etc. From the analytical calculation results, running resistance of a designed vehicle is obtained with the change of operating condition of the vehicle such as inclined angle of road and vehicle speed. Tractive performance of the model vehicle with a given power train system is also calculated at each gear ratio of transmission. Through analysis of these two calculation results: running resistance and tractive performance, the driving performance of a designed electric vehicle is estimated and it will be used to evaluate the adaptability of the designed power train system on the vehicle.
KeywordsElectric Vehicle Vehicle Speed Model Vehicle Gear Ratio Rolling Resistance
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- 1.Gillespia, T.D.: Fundamentals of Vehicle Dynamics. Society of Automotive Engineers, Warrendale (1992)Google Scholar
- 2.The Traffic Institute, Traffic Accident Reconstruction. Northwestern University, 62–140 (1990)Google Scholar
- 3.Munson, B.R., Young, D.F., Okiishi, T.H.: Fundamentals of Fluid Mechanics, 5th edn., pp. 518–521. John Wiley, Iowa (2006)Google Scholar
- 4.KIA Motors Co., http://www.kiamotors.com/ (accessed on August 6, 2008)
- 5.TMC(The Lynch Motor Company), Technical Date Sheet of Model 20D127, UK (2008)Google Scholar
- 6.Cole, D.: Elementary Vehicle Dynamics course notes in Mechanical Engineering. The Univ. of Michigan, Michigan (1972)Google Scholar
- 7.Hucho, W.H.: Aerodynamics of Road Vehicles, pp. 142–145. Warrendale PA, Society of Automotive Engineers (1998)Google Scholar