A new architecture for on-vehicle “Display Audio” information devices

The current technology trend in automotive navigation systems is “Display Audio” devices. These are display devices that connect directly to and are controlled by the user´s smartphone. However, such devices suffer problems of driver distractibility as well as problems related to differences in the life cycle of the Display Audio device and the smartphone. In this study, we discuss the state of current on-vehicle information devices, and propose a new architecture for an on-vehicle information system using a smartphone and an accelerometer. Finally, we show positive results based on a usability evaluation.