Work vehicle with enhanced implement position control and bi-directional self-leveling functionality
US9822507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2014 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Apr 9, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2029
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for automatically adjusting the position of an implement of a lift assembly may generally include receiving a signal indicative of a position and/or a movement parameter of loader arms of the lift assembly and receiving a signal indicative of a pressure of a hydraulic fluid supplied within the lift assembly. The method may also include calculating a first correction signal associated with adjusting the position of the implement, wherein the correction signal is calculated by inputting the position and/or the movement parameter and the fluid pressure into a control equation based on a model of the operational dynamics of the lift assembly. In addition, the method may include generating a valve command signal based at least in part on the correction signal and transmitting the valve command signal to a valve for maintaining the implement at a fixed orientation relative as the loader arms are being moved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.