Method of shifting gears in a work machine
US7353725B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | May 9, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of shifting gears in a work machine includes modulating an oncoming clutch pressure via a first segment of a predetermined curve, and modulating the clutch pressure via a second segment of the predetermined curve after the occurrence of a predetermined relative velocity state of a work machine transmission. A work machine having an electronic controller with an embedded shifting control algorithm that includes means for modulating the oncoming clutch pressure via a first segment of a predetermined curve, and via a second segment of a predetermined curve having a net slope different from the first segment after the occurrence of a predetermined relative velocity state of the work machine transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.