Excavating implement heading control
US9816249B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Mar 23, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/265
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An excavator comprises a chassis, an implement, and an assembly comprising a boom, a stick, and a coupling. The assembly is configured to define a heading {circumflex over (N)} and to swing with, or relative to, the chassis about a swing axis S. The stick is configured to curl relative to the boom about a curl axis C. The implement is coupled to a stick terminal point G via the coupling and is configured to rotate about a rotary axis R such that a leading edge of the implement defines a heading Î. An excavator control architecture comprises sensors and machine readable instructions to generate signals representative of {circumflex over (N)}, an assembly swing rate ωS about S, and a stick curl rate ωC about C, generate a signal representing a terminal point heading Ĝ based on {circumflex over (N)}, ωS, and ωC, and rotate the implement about R such that Î approximates Ĝ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.