In this paper a displacement controlled actuation system is presented as an alternative to using control valves in mobile hydraulic systems. Differences in the inherent characteristics pertaining to efficiency and productivity of the two systems are discussed. Due to these differences an initial observation seems to be that the total required corner power of the pumps installed in the displacement controlled system must be much greater than that of a valve controlled system. An excavator system is selected as a sample application and analysis is performed to determine how much installed corner power is required by the displacement controlled system to maintain at least the same overall productivity as the valve controlled system. The energy consumed by the displacement controlled system is also examined with respect to the installed corner power.
- Dynamic Systems and Control Division
Effect of Installed Hydraulic Corner Power on the Energy Consumption and Performance of Multi-Actuator Displacement Controlled Mobile Machines
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Zimmerman, J, & Ivantysynova, M. "Effect of Installed Hydraulic Corner Power on the Energy Consumption and Performance of Multi-Actuator Displacement Controlled Mobile Machines." Proceedings of the ASME 2009 Dynamic Systems and Control Conference. ASME 2009 Dynamic Systems and Control Conference, Volume 2. Hollywood, California, USA. October 12–14, 2009. pp. 871-878. ASME. https://doi.org/10.1115/DSCC2009-2781
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