Method and system for controlling steady-state speed of hydraulic cylinders in an electrohydraulic system
US6459976B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | May 23, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B21/082
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and system for controlling the steady-state speed of a cylinder in an electrohydraulic system having multiple cylinders includes a plurality of levers for controlling each of the cylinders. A controller, in communication with the levers and the hydraulic cylinders, has a limited number of parameters defining at least one desired relationship between steady-state speed and lever position for each of the cylinders stored therein. The controller further determines a current desired relationship for each of the cylinders from the associated at least one desired relationships. Upon detecting movement of the lever, the controller determines a current position of the lever associated with one of the cylinders and then controls the steady-state speed of the associated cylinder based on the limited number of parameters defining the current desired relationship and the position of the lever.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.