Energy Analysis of Highway Electric HDV Platooning Considering Adaptive Downhill Coasting Speed

Abstract

Increase of non-renewable energy consumption and CO2 emissions has brought heavy burdens to our planet. Heavy-duty vehicles as a large energy consumer benefit a lot from platooning due to reduced air drag. Comparing to ICE trucks, electric trucks can gain more energy savings from platooning while also reducing CO2 emissions. This paper explores the energy consumption of electric HDV platooning under highway situations and proposes an adaptive downhill coasting speed method with regenerative braking. Simulations show that electric HDV platooning can reach at most 33.4% energy savings with our proposed adaptive coasting speed profile. With a sacrifice of 22.2% travel time, the energy savings can be further increased to 49.3%.

Keywords

• electric trucks
• heavy-duty
• fleet
• downhill coasting
• regenerative braking