Effect of adaptive cruise control on fuel consumption in real-world driving conditions

Ayman Moawad (), Matthew Zebiak, Jihun Han, Dominik Karbowski, Yaozhong Zhang and Aymeric Rousseau
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Ayman Moawad: Vehicle and Mobility Simulation department at Argonne National Laboratory
Matthew Zebiak: 2050 Partners
Jihun Han: Vehicle and Mobility Simulation department at Argonne National Laboratory
Dominik Karbowski: Vehicle and Mobility Simulation department at Argonne National Laboratory
Yaozhong Zhang: Vehicle and Mobility Simulation department at Argonne National Laboratory
Aymeric Rousseau: Vehicle and Mobility Simulation department at Argonne National Laboratory

Nature Communications, 2024, vol. 15, issue 1, 1-15

Abstract: Abstract This paper presents a comprehensive analysis of the impact of adaptive cruise control on energy consumption in real-world driving conditions based on a natural experiment: a large-scale observational dataset of driving data from a diverse fleet of vehicles and drivers. The analysis is conducted at two different fidelity levels: (1) a macroscopic trip-level benefit estimate that compares trips with and without cruise control in a counterfactual way using statistical methods, and (2) a situation-based comparison achieved through the segmentation of trips into distinct driving situations such as acceleration, braking, cruising, and other maneuvers. The results of this research show that the effect of cruise control on energy consumption varies across different driving situations and levels of analysis. In a macroscopic trip-level analysis, cruise control engagement is associated with a slight increase in fuel consumption across the fleet. As revealed later by the situation-based analysis, this result can be attributed to the negative impact of cruise control on energy consumption in cruising mode, which is the most common driving situation. However, the situation-based comparison demonstrates that cruise control can provide fuel consumption benefits in situations involving acceleration and braking, particularly when a preceding vehicle is present. The study also emphasizes the importance of controlling for various factors that can influence both fuel consumption and the likelihood of cruise control engagement to properly evaluate its effects.

Date: 2024
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DOI: 10.1038/s41467-024-54066-8

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