Dynamic optimization of a crane load curve
US10865075B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jul 10, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C2700/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for controlling command of lifting a load suspended from a boom, carried by a mast of a crane, includes determining: depending on the mass of the suspended load, a specified load factor quantifying an acceptable exceedance with respect to a predetermined maximum allowable load for said crane; a maximum permitted lifting acceleration, depending on the mass of the suspended load, on the specified load factor and on the distribution position of the load suspended on the boom with respect to the mast; from lifting speed setpoints, optimized lifting speed setpoints intended to be executed by a motor device for displacing the suspended load according to a lifting movement so that the acceleration related to the lifting movement remains, in absolute value, less than or equal to the maximum permitted acceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.