Swing motion variable control system
US12416133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2023 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Mar 22, 2044 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/226
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mechanical swing brake variable control system for an earth-moving machine including an upper revolving car body with swing components mounted on the upper revolving car body, a lower traveling car body with traction components mounted on the lower traveling car body, and a mechanical service brake interconnected with the upper and lower car bodies, controls relative rotation between the upper and lower car bodies. A pressure control device controls a variable pressure applied to the mechanical service brake to vary an amount of swing drive holding torque. An electronic controller monitors and processes signals received from sensors associated with the swing components and machine operator commands, and variably controls the amount of holding torque exerted on the upper revolving car body using the mechanical service brake as a function of one or more of machine roll angle, operational configuration of the swing components, inertial mass of the swing components, and machine operator commands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.