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Optimal Nominal Pressurization Generation: A Novel Idea for a Discrete Logic Control Using an Independent Metering Valve Configuration

[+] Author Affiliations
Christian Meyer, Daniel Weiler

Bosch Rexroth AG, Lohr am Main, Germany

Hubertus Murrenhoff

RWTH Aachen, Aachen, Germany

Paper No. DSCC2011-5947, pp. 351-354; 4 pages
doi:10.1115/DSCC2011-5947
From:
  • ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control
  • ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 2
  • Arlington, Virginia, USA, October 31–November 2, 2011
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-5476-1
  • Copyright © 2011 by ASME

abstract

When using an independent metering valve configuration with a multivariable control concept the position and the rod side pressure level and therefore the pressurization level of the cylinder drive can be controlled. By controlling the rod side pressure and the position separately the operating area of the cylinder drive changes dependent on the actual nominal rod-side pressure. In order to reach every operation point with optimal stiffness a nominal pressure generation dependent on the actual operating point is needed. In this article a novel idea how to realize such a logic control for the optimal nominal pressurization level generation is presented. The main focus in this paper is the principal structure of such a logic control. The functionality is shown by simulation and measurement results of a differential cylinder drive.

Copyright © 2011 by ASME
Topics: Valves

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