Chip system to monitor and digitally control a multiple clutch transmission
US4479399A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 1982 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | May 24, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19284
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Three clutch system for operating the composite transmission power train of a farm tractor, comprising first and second power shift clutches, and a master clutch connected by intervening gearing in separate paths to the different power shift clutches so as to be in series with either one. The power shift clutches are selectively connected by electrical hydraulic controlling means to a tractor engine at an engine connected end of a speed transmission in the power train; the master clutch is at the output end of the speed transmission, connecting it to a range transmission which completes the composite transmission power train hereof. A digital microcomputer chip is responsive to manually controlled engagement and disengagement of the master clutch and to other critical control parameters, and is programmed to monitor and control the three clutch controlling means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.