Two Types of Eco-Driving Support - The Effects of an Instantaneous Consumption and an Optimal Speed Display on Energy-Efficient Driving and Energy Dynamics Awareness
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Supporting energy-efficient driving is essential for sustainable mobility, particularly in electric vehicles (EVs), where operational eco-driving (or ecodriving) can significantly reduce energy consumption. This study investigates the effects of two types of ecodriving displays—an Instantaneous Consumption Display (ICD) and an Optimal Speed Display (OSD)—on energy consumption and energy-related situation awareness (Energy Dynamics Awareness, EnDynA). Using the EcoSimLab EV driving simulator, N = 94 participants were assigned to three display conditions- ICD, OSD, and control group- and completed multiple driving trials under different situation complexities. Results showed that both display types improved EnDynA and ecodriving performance compared to the control group. The OSD, which provided predictive speed recommendations, was particularly effective in more complex driving scenarios. In contrast, the ICD, offering real-time consumption feedback, facilitated learning in simpler scenarios. These findings highlight the importance of adaptive ecodriving support systems that balancereal-time feedback with predictive guidance.
