Severe Duty Vehicle Application Challenges for Energy Storage

Heavy Class vehicles are subject to similar environmental driven standards as the passenger cars to reduce harmful exhaust emissions. This is challenging for Heavy Class vehicles that are not able to sacrifice continuous performance for fuel efficiency. In an effort to reduce the carbon footprint and improve vehicle performance Oshkosh Corporation has been developing electric and hybrid electric powertrain systems for Heavy and Severe Duty vehicles. This presentation focuses on the energy storage system portion of the hybrid powertrain and addresses some of the challenges found in the applications. The energy storage technology selection and system sizing have been driven by vehicle performance requirements while also offering improved fuel economy. The key energy storage system requirements are discussed and enhanced with modeling and simulation, and various performance test results. Vehicle performance and fuel economy test results demonstrate the benefits gained by utilizing energy storage systems.

Presenter
Mike Bolton, Oshkosh Corporation