A Sensitivity Analysis on Performance of a Typical Single Axle Battery Electric Vehicle

This paper outlines the sensitivity analysis of battery energy consumption for varying vehicle parameters and efficiencies of the powertrain components in a battery driven electric vehicle. The paper elucidates the calculation of energy consumption from the battery using backward calculation algorithm. The energy consumption from battery depends on a number of factors and losses at each stage has effects of varying magnitudes in the overall efficiency. The major scope of this paper is to quantify these effects based on a sensitivity analysis and to find the critical vehicle parameter and critical component in the powertrain, allowing suggestions for the improvement in performance of the battery driven electric vehicle for a lower consumption rate based on the sensitivity analysis. This aids in a significant improvement in the electric vehicle range by intelligent design of the vehicle parameters and powertrain components. The concept is analyzed for different combinations of vehicle parameters and powertrain componentefficiencies for NEDC (New European Driving Cycle) cycles. This enables additional degrees of freedom to optimize the component design for performance and cost based on application.