Optimisation and Concept Sensitivity of Continuously Variable Hydromechanical Transmissions
2013 (English)Conference paper, Presentation (Other academic)
Demands for better fuel efficiency for mobile working machines motivate the manufacturers to replace existing drive transmissions with more complex, high-efficiency transmissions. Hydromechanical power-split transmissions can offer high energy efficiency throughout the speed range and allows a decoupling of the speed of the combustion engine and the vehicle speed. This paper deals with the design of complex hydromechanical power-split transmissions and suggests an optimisation-based design methodology to minimise the energy consumption and manufacturing cost of the gearbox. The methodology is applied to a multiple mode power-split transmission which is designed to suit the requirements and typical operating behaviour of a heavy wheel loader. It is shown how important the design of the transmission is to its characteristics and how manufacturing costs can be weighed against energy efficiency.
Place, publisher, year, edition, pages
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-99380OAI: oai:DiVA.org:liu-99380DiVA: diva2:656781
8th International Conference on Fluid Power Trans- mission and Control, April 9-11, Hangzhou, China