Electronic coordinated control for a two-axis work implement
US6115660A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2221
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A loader of the type controlled with an electronic digital controller is disclosed herein. The loader may include conventional mechanical component. However, the hydraulic valve is electronically controlled to provide improved motion control. In particular, the operator controls the loader with a two-axis joystick. When the joystick is moved left or right, the bucket is rolled at a speed proportional to the rate of change of the joystick position and independent of the loader arms. When the joystick is moved forward or backwards, the loader arms of the bucket are raised or lowered. When the joystick is only moved forward or backward with substantially no component of motion left or right, the controller rolls the bucket to maintain a substantially constant angle between the bucket and the surface upon which the loader is operating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.