Abstract
Successful application of digital fluid power displacement pumps rely on proper control of the actively controlled high pressure and low pressure manifold valves. This paper concerns a method, where the valve timing control and the overall displacement modulation are separated. The displacement chambers of the pump are operated in full-stroke mode and a pulse density modulation method is used to approximate a desired displacement output. This pulse density modulation is performed with delta-sigma modulation, whereby the chamber activation pattern is determined. The method is implemented in a simulation model of a digital hydraulic pump in order to exemplify the use of it.
| Original language | English |
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| Title of host publication | Proceedings of the 7th Workshop on Digital Fluid Power |
| Number of pages | 8 |
| Publisher | LCM GmbH |
| Publication date | Feb 2015 |
| Pages | 1-9 |
| ISBN (Print) | 978-3-200-04014-4 |
| Publication status | Published - Feb 2015 |
| Event | 7th Workshop on Digital Fluid Power - Linz, Austria Duration: 26 Feb 2015 → 27 Feb 2015 |
Conference
| Conference | 7th Workshop on Digital Fluid Power |
|---|---|
| Country/Territory | Austria |
| City | Linz |
| Period | 26/02/2015 → 27/02/2015 |
Keywords
- Digital Fluid Power Displacement
- Delta-sigma modulation
- Digital Displacement
- Hydraulic pump
- Pulse Density Modulation