Louise Hermsen

Energy policy and research

Automatic transmissions for commercial vehicles

Modular lithium-ion battery systems

Combines an internal combustion engine with an electric motor and a battery that can be recharged from an external source.

A hybrid lithium-ion battery buffer is used to smooth power fluctuations and handle peak loads in conjunction with the hydrogen fuel cell.

A system that combines a traditional engine with an electric motor and battery to improve fuel efficiency and reduce emissions in medium and heavy-duty work trucks.

Wisconsin

Virginia

Indiana

A plug-in hybrid system for medium- and heavy-duty trucks that integrates electric power conversion, power control, and energy management technology with commercial vehicle transmissions.