AVERAGE SPEED OPTIMIZATION OF ELECTRIC VEHICLES WITH CHARGING STOPS

The article discusses the issue of driving an EV over long distances when additional charging of the high-voltage battery is required. The optimization of driving speed between charges is considered. If the speed is too low, the electric car will spend too much time covering the distance between charges, and if the speed is too high, the charging time will increase significantly. In the article, the data on the charge consumption from the driving speed of eight EVs are considered and reduced to a single denominator. Both serial EVs and EVs manufactured in Ukraine in single versions were included in the review. Based on these data, the optimal speed of movement was calculated. It was found that these speeds largely depend on the average power of the next charging session on the way. An empirical formula for calculating the optimal driving speed with correction factors that depend on the design of the electric vehicle was obtained. It was also found that with large values of the preparatory and final time of the charging session, the average driving speed can increase by 40%.