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.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:14-qucosa-199375 |
| Date | 27 April 2016 |
| Creators | Linjama, Matti, Huova, Mikko, Karhu, Otso, Huhtala, Kalevi |
| Contributors | Dresdner Verein zur Förderung der Fluidtechnik e. V.,, Technische Universität Dresden, Fakultät Maschinenwesen |
| Publisher | Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:conferenceObject |
| Format | application/pdf |
| Source | 10th International Fluid Power Conference (10. IFK) March 8 - 10, 2016, Vol. 1, pp. 37-48 |
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