Abstract
The automation of hydraulic mobile machinery, such as excavators, requires high performance control solutions. In hydraulics, this means fast and accurate force, velocity and position control of hydraulic cylinder. Especially the force control is known to be difficult with traditional servo valves. Fast digital hydraulic valves together with modern control solutions can overcome this problem. This paper uses a new force control solution, which is based on the fast digital hydraulic valves and model based control principle. The control solution is applied in a heavy axis mimicking dynamics of mobile machine booms. Experimental results show good force, velocity and position tracking performance with varying load masses. The slow velocity performance is also much improved when compared to the earlier results.
| Original language | English |
|---|---|
| Title of host publication | 10th International Fluid Power Conference (10. IFK) |
| Place of Publication | Dresden |
| Number of pages | 12 |
| Volume | 1 |
| Publication status | Published - Mar 2016 |
| Publication type | D3 Professional conference proceedings |
| Event | International Fluid Power Conference - Duration: 1 Jan 1900 → … |
Conference
| Conference | International Fluid Power Conference |
|---|---|
| Period | 1/01/00 → … |
Keywords
- Digital hydraulics
- tracking control
- force control
- position control