Excavator four-bar linkage length and angle offset determination using a laser distance meter
US10900196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2018 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Mar 28, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/32
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An excavator calibration framework comprises an excavator, a laser distance meter (LDM), and a laser reflector. The excavator comprises a chassis, linkage assembly (LA), sensor, implement, and an architecture controller. The LA comprises a boom, stick, and four-bar linkage (4BL) with the sensor on a 4BL dogbone linkage. The architecture controller is programmed to generate a mapping equation comprising linkage angle inputs (a measured dogbone angle θDFMeasured, an estimated implement angle θGHEstimated) and n unsolved 4BL linkage length and angle offset parameters. The controller is programmed to generate and solve a set of m mapping equations comprising the n unsolved parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.