Shovel and method for controlling shovel
US8972122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Mar 6, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/265
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shovel includes a boom 4 or an arm 5 driven by a hydraulic oil discharged from a main pump 12. The shovel also includes a pressure sensor 17A which detects an operating condition of the boom 4, an arm angle sensor S1 which detects an arm angle β, a body stability determining part 300 which determines a body stability degree of the shovel based on the arm angle β and an operating condition of the boom 4, and a discharge rate controlling part 301 which decreases a horsepower of the main pump 12 if it is determined by the body stability determining part that a body stability degree becomes lower than or equal to a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.