Advisor Based Modelling of Regenerative Braking Performance of Electric Vehicles at Different Road Slopes

Abstract

In this study, an electrical vehicle model, which has 75kW AC asynchronous engine and 25kW NiCad batteries, has been composed by means of (ADVISOR-Advanced Vehicle Simulator) programme. During the driving cycle formed for the designed electrical vehicle, charging state of batteries, braking losses, battery temperatures and fuel consumption have been analysed at different road slopes. The study has shown that power to batteries is provided by regenerative braking at all slopes and if the slope is downside, more energy is stored into batteries due to regenerative braking. In simulation of the modelled device, maximum brake power loss of 4.43 kW has decreased at road slope of ∝=-%1.5 by means of regenerative recovery. At road slope of α=-4.5, the highest charging level has been obtained as 99.1%.

Keywords

• advisor
• regenerative braking
• electric vehicle
• road slope
• battery charge