Modern vehicles design is becoming more of a multi-disciplinary field. We plan to incorporate automotive research of the many faculty at NCSU.  The developed technologies will be showcased on a vehicle testbed. In particular, ATEC research will focus on improving the electronic components of the vehicle electric drivetrain.

Electric motor

Currently permanent magnet motors and induction motors are typically used on vehicles with electric propulsion. We will look at how we can improve the efficiency, and reduce the cost of these electric motors. ATEC will also work on developing other motor types such as reluctance motors for electric propulsion, as well as on developing novel concepts such as integration of the electric motor with the power electroinics and placing the motors in the vehicle’s wheels (hub motors).

Power electronics

There are a number of power conversion and conditioning devices on the electric vehicle (eg. motor drivers, voltage boosters, on-board battery charger). We will research into methodologies to simplify these electronics systems, make them more efficient, more robust and smaller. In addition, we are developing the next generation post-silicon devices that operate more efficiently and at higher temperatures. The use of SiC devices will enable us to make the power electronics systems more compact, more efficient, and to require a smaller cooling unit.

Energy Storage Devices

In addition to extensive research on batteries with the goal of increasing life and fast charging capability, ATEC will also investigate other power sources such as super capacitors, fuel cells and flywheels. Super capacitors in particular are of interest due to their long life and very fast charging characteristics.

System studies

PHEVs and PEVs are complex systems that are made of a number of subcomponents. To maximize vehicle efficiency, a control strategy has to be developed where each subsystem operates at its most efficient point. In addition, the overall vehicle performance can be tailored to the driving conditions to improve the system efficiency.. By considering the vehicle as a system the vehicle overall efficiency can improve dramatically without cost increments or technological breakthroughs.