Title:
SYSTEM FOR CONTROLLING A HYDRAULIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2010/068749
Kind Code:
A3
Abstract:
A method of operating a hydraulic system (24) is disclosed. The method includes holding an implement configuration in an orientation. The method also includes sensing a pressure within a chamber (56, 58) of a hydraulic actuator (30a-c) associated with the implement configuration when the implement configuration is in the orientation and comparing a first signal indicative of the first sensed pressure with a first pressure value. The method further includes selecting a first functional relationship (71) from among a plurality of stored functional relationships if the first signal is greater than the first pressure value and selecting a second functional relationship from among the plurality of stored functional relationships if the first signal is less than the first pressure value. The method includes controlling the hydraulic actuator based on the selected functional relationship.
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Inventors:
PETERSON RANDAL NEIL (US)
VERKUILEN MIKE T (US)
VERKUILEN MIKE T (US)
Application Number:
PCT/US2009/067490
Publication Date:
August 19, 2010
Filing Date:
December 10, 2009
Export Citation:
Assignee:
CATERPILLAR INC (US)
PETERSON RANDAL NEIL (US)
VERKUILEN MIKE T (US)
PETERSON RANDAL NEIL (US)
VERKUILEN MIKE T (US)
International Classes:
E02F9/22; E02F9/20; F15B11/16; F15B13/06
Foreign References:
| US20060156713A1 | 2006-07-20 | |||
| EP1403438A1 | 2004-03-31 | |||
| US20050199120A1 | 2005-09-15 |
Attorney, Agent or Firm:
TROUSDALE, Jonathan, V. et al. (Peoria, IL, US)
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