The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2012
Filed:
Jun. 29, 2006
Georg Keintzel, Steyregg, AT;
Gernot Grabmair, Bad Schallerbach, AT;
Kurt Schlacher, Graz, AT;
Abstract
The invention relates to a control method for a mechanical-hydraulic system having a degree of freedom per hydraulic actuator which is embodied as a control path, and a measuring sensor which is used to measure the pressure pof a hydraulic cylinder and a measuring sensor which is used to measure the position xof the piston of the hydraulic cylinder. A control unit which can receive input variables of hydraulic pressure p, and hydraulic actuator position x, is provided. An observer, which determines the desired pressure of the hydraulic system and the speed vof the hydraulic actuator, is implemented in the system. The desired pressure in the control element is taken into account in the set of rules of the control element and the speed vof the hydraulic actuator can be over-ridden for attenuating the control element.