fluid power systems for mobile applications621033/cover01.pdffluid power systems for mobile...
TRANSCRIPT
Fluid Power Systems for Mobile Applicationswith a Focus on Energy Efficiency and Dynamic Characteristics
Mikael Axin
Linköping Studies in Science and Technology. Thesis No. 1595
Division of Fluid and Mechatronic Systems Department of Management and Engineering
Linköping University SE-581 83 Linköping, Sweden
www.liu.seLinköping 2013
Mikael A
xinFluid Pow
er Systems for M
obile Applications
2013
This thesis studies an innovative working hydraulic system design for mobile applications, referred to as flow control. The fundamental difference compared to load sensing systems is that the pump is controlled based on the operator’s command signals rather than feedback signals from the loads. This control approach enables higher energy efficiency and better dynamic characteristics compared to load sensing. In this research, both theoretical studies and practical implementations demonstrate the capability of flow control systems. Experiments show a reduced pump pressure margin and energy saving possibilities in a short loading cycle for a wheel loader application.