Excavator control architecture for generating sensor location and offset angle
US11124950B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Mar 18, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/3681
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A machine is disclosed including a sensor on a limb, an implement, an architecture, and a linkage assembly (LA) including a boom and a stick. The architecture comprises one or more LA actuators and a controller that generates a sensor location and offset angle ϕ and is programmed to: pivot the limb (either the boom or stick) about a pivot point and generate a set of sensor signals. The controller is programmed to repeatedly execute an iterative process n times until exceeding a threshold, which process comprises determining a sensor location estimate n (a distance between the sensor and the pivot point) and an offset angle estimate ϕn defined relative to a limb axis. A utilized optimization model includes the set of sensor signals and error terms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.