Research Article

Fuel-Efficient Driving Strategies for Heavy-Duty Vehicles: A Platooning Approach Based on Speed Profile Optimization

Table 2

The average fuel savings obtained in the simulations for a heterogeneous platoon of two HDV, with different mass configurations, over all the road profiles. The middle column shows the fuel savings obtained when the lead vehicle follows the optimized speed profile and the follower vehicles follow the same profile while maintaining the desired intervehicle distance (using ACC). The desired intervehicle distance is set to the minimum allowed safe distance; see (12). The right-most column shows the fuel savings obtained when each vehicle follows its own optimized speed profile. All the fuel savings are normalized with respect to the baseline case, i.e., CC+ACC where the lead vehicle drives at the constant speed of 80 km/h and the inter-vehicle distance is set to the allowed minimum.

ā€‰ Average saving (%)
Platoon configuration SPO + ACC P-SPO

Configuration I-a 15.26 16.76
Configuration I-b 15.75 16.94
Configuration II-a 15.22 17.05
Configuration II-b 17.23 17.43