High power savings are possible especially at medium flow rates.įurthermore, load sensing systems suffer from poor dynamic characteristics since the pump is operated in a closed loop control mode. This control approach enables higher energy efficiency since the pressure difference between pump and load is given by the system resistance rather than a prescribed pump pressure margin. 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.
The system analysed in this thesis is referred to as flow control. The purpose is to improve the energy efficiency and the dynamic characteristics compared to load sensing systems without increasing the complexity or adding additional components.
This thesis studies an innovative working hydraulic system design for mobile applications.
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