Study on the influence of acceleration curve on electric vehicle energy consumption and battery life

Abstract

At present, much research on acceleration curve mainly focuses on reducing electric vehicle energy consumption, but there has been less consideration given to the impact on battery life, which will result in a decrease in battery life, and in turn leads to a short driving range for electric vehicle. Aiming at the problem, the relationship among acceleration curve and electric vehicle energy consumption and battery life is studied, and when electric vehicle accelerates with a single, two and three accelerations under neighborhood, urban and highway conditions, the difference between electric vehicle energy consumption per kilometer (ECPM) and percentage of battery capacity loss per kilometer (PBCLPM) is studied. Research results show that the variation trend of electric vehicle ECPM with acceleration and acceleration time under different working conditions is basically contrary to the variation trend of PBCLPM. The two are mutually contradictory, therefore, when optimizing the acceleration curve, you should not only consider energy consumption, but also consider the effect of acceleration curve on battery life.