Secondary control in construction machinery: Design and evaluation of an excavator swing drive
2009 (English)Conference paper (Refereed)
To increase energy efficiency in construction machinery, energy recuperation systems are of great interest. For this purpose, the potential of using a secondary controlled excavator swing drive has been evaluated. Concepts for emergency brake operation and circuit architecture have been designed and compared in simulation. A wheel excavator has been considered as reference vehicle and dimensioning of the secondary controlled drive has been made to match the performance during a typical duty cycle. It has been shown that considerable energy savingscan be achieved in both open and closed circuit. The potential of the secondary controlled swing in comparison with a hybrid solution lies however in minimising the parasitic losses ofthe hydraulic circuit. A possible decreased energy consumption of up to 60 % for the swing drive can then be achieved by the recuperated energy.
Place, publisher, year, edition, pages
Secondary Control, Energy Recuperation, Excavator, Swing Drive
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-52645OAI: oai:DiVA.org:liu-52645DiVA: diva2:284408
The 11th Scandinavian International Conference on Fluid Power