User Experience of Electric Vehicle Energy Use and Range

Abstract

Electric Vehicles (EVs) are rapidly gaining popularity, but with the transition from Internal Combustion Engine Vehicles (ICEVs) to EVs comes a learning curve for new users. Through internal surveys, Volvo has discovered a dissatisfaction amongst some of their users when it comes to the range of their EVs. Range in EVs is influenced by both driver behaviour and external factors. Volvo’s existing Range Assistant interface is designed to help users understand and optimise their energy consumption, and potentially alleviating range anxiety. However, some users find the interface difficult to interpret, leading to frustration and confusion. This project therefore aims to identify potential knowledge gaps amongst EV users regarding range estimation and energy consumption. Using a user-centred design approach, questionnaires and usability tests were conducted iteratively to explore user needs and challenges. Based on the findings from the iterations, a list of 10 design recommendations to improve range assistance interfaces has been established. These recommendations cover aspects such as information visualisation, feedback, and coaching, offering guidance for enhancing user trust and understanding in EV range estimation interfaces.