This part of the ecoDriver project focused on the design of feedback inside the vehicle to help people drive in the most fuel-efficient way. People made comparisons between various methods of eco-driving feedback provided to them during a drive in the driving simulator. Assistance was provided visually on the glass dashboard or through a haptic pedal (capable of varying the resisting force of the accelerator to the driver’s pushing). Both of these simulator components were installed specifically for the project, and now provide a vastly improved array of in-vehicle stimulus presentation possibilities at the driving simulator. Auditory feedback was also included. This work informed a subsequent study in which drivers used the “winning systems” from the first study in a more prolonged and demanding drive, where their eco-driving performance was placed under greater scrutiny.
Below: An example of an in-vehicle eco-driving interface tested.