HMI Architecture and Bluetooth Phonebook Design in Car Infotainment

Archana Bhat

Abstract— Mobile devices are today a crucial part in many people’s lives. Whether its accessing emails, streaming music or managing contacts - such scenarios are now expected to be fully accessible and functional in automotive environ­ments. The automotive industry is a steadily growing market for Bluetooth technology, with Bluetooth enabled hands-free calling systems now included as standard equipment on millions of new cars and trucks. Safety concerns and new hands-free driving laws spurred the explosion in hands-free calling systems. Any driver doesn’t want to fiddle with his phone while driving, so you need some way to get the names and numbers of your contacts from the phone into your car's infotainment system where they can be safely browsed or used in voice commands. Phone Book Access Profile (PBAP) gives your car's hands-free system access to your phone's address book for syncing. To access the phone book, HMI (Human Machine Interface) is used as the car display in the head unit. This paper explains about the architecture of HMI used in car Infotainment and downloading the phone book stored in the mobile devices to the car radio through Bluetooth (BT) connection. It briefly explains the flow of information in the downloading process from the BT system side to HMI.