Energy efficient transmissions
Research Project , 2011 – 2014

This application is part of a transmission cluster formed by Volvo AB, Scania, Chalmers and KTH. The application is for two PhD students (one at KTH and one at Chalmers). Gear transmissions efficiency can be divided in to velocity depended and load depended losses. The lubricant viscosity and the rotational speed influence the velocity depended losses. Friction in gear contacts and in bearings is the main cause of the load dependent losses. The project will focus on a holistic perspective to reduce the energy losses at system level by focusing on minimizing the velocity dependent losses in parallel with optimization of fluid flow and oil transport in the transmission.


Lars Davidson (contact)

Full Professor at Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Valery Chernoray

Forskningsprofessor at Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics


Royal Institute of Technology (KTH)

Stockholm, Sweden

Scania CV AB

Södertälje, Sweden


Trollhättan, Sweden

Volvo Group

Gothenburg, Sweden


Swedish Energy Agency

Project ID: 35078-1
Funding Chalmers participation during 2011–2014

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