Iowa State University
EE/CprE/SE 491/492 Spring 2013 Senior Design Project Group 22B

Paragon, Inc.: Electric Vehicle

Vehicle Systems

Audio System

The audio system in the car contains a Bluetooth adapter and both internal and external speakers. The Bluetooth audio adapter is intended to be used both for hands-free calling with a cellphone and streaming music from portable players. It also has a sound input via 3.5mm audio jack and can output to either of the two speaker sets, or both of them.

The system also has an amplifier to interface the onboard microphone with the external speakers. The two sets of speakers operate independently and simultaneously.

Block diagram:

audio system block diagram