Integrated transmission-engine control
US4102131A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | May 5, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H59/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An integrated transmission-engine control for a transmission, such as a hydrostatic transmission having a variable displacement unit connectable to an engine and a second displacement unit connected to an output shaft, including fluid pressure-operated ratio governor means for the transmission, fluid pressure-operated means for controlling the supply of fuel to an engine, a power demand valve for converting a particular power demand to a particular fluid pressure primary control signal. The primary control signal is applied to the ratio governor means in opposition to a signal representing engine speed to set the transmission ratio for a desired engine speed and also applied to the fuel supply controlling means to establish a fuel setting to match engine horsepower to engine speed for minimum fuel consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.