Publications / 2000 Proceedings of the 17th ISARC, Taipei, Taiwan

A Hydraulic Open Loop System for Controlled Excavation along Prescribed Path

Eugeniusz Budny, Witold Gutkowski
Pages 1-6 (2000 Proceedings of the 17th ISARC, Taipei, Taiwan, ISBN 9789570266986, ISSN 2413-5844)
Abstract:

In this study, an open loop hydraulic system for controlled excavation is proposed. It is based on a kinematically induced motion of the excavator bucket. The three degrees of freedom of the latter are driven, in a unique way, by three independent hydraulic actuators. All of them are filled with the oil in such a way that, at any instant of time, their lengths define position of the bucket. A system of three force-independent valves is applied. This way the execution of desired trajectory can be performed even in cases of some variations of soil properties.

Keywords: excavation, controlled motion, hydraulic controller, automation, open loop system.