Fig. 7: Contour plot of regenerative braking efficiency difference between ACC ON and OFF conditions.
From: Insights into adaptive cruise control and energy efficiency in electric vehicles
This figure shows the difference in regenerative braking efficiency between events where adaptive cruise control was engaged and disengaged. The horizontal axis shows the starting speed in kilometers per hour (kph), and the vertical axis shows the change in speed during the braking event. The color map displays the mean difference in efficiency between ACC ON and OFF, with red areas indicating higher efficiency under ACC, and blue areas indicating higher efficiency under human driving. Efficiency differences are clipped at ± 30 percent to improve contrast and visibility of intermediate trends.
