Grade control systems and methods for earthmoving implements
US12209393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2022 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Jul 27, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/262
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Grade control systems and methods for an earthmoving machine and control architecture to generate a continuous differential surface associated with a rear curved surface of an earthmoving implement, project the continuous differential surface onto a two-dimensional (2D) plane associated with the earthmoving implement, determine a piecewise-derivative continuous curve based on the continuous differential surface projected on to the 2D plane, determine a derivative of the piecewise-derivative continuous curve, project a design plane normal n* of a ground surface for smoothing onto the 2D plane associated with the earthmoving implement, determine a point of perpendicular intersection between the derivative of the piecewise-derivative continuous curve and the design plane normal n* of the ground surface projected onto the 2D plane, and operate the earthmoving machine using one or more linkage assembly actuators and the point of perpendicular intersection to smooth the ground surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.