Device for selecting characteristics of a transmission between a motor and its load
US4233862A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1977 |
| Grant date | Nov 18, 1980 |
| Priority date | — |
| Expiry date | Jun 17, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S477/904
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This device comprises a generator of electric signals adapted to generate a first signal whose frequency is proportional to the speed of the output shaft of the transmission and whose amplitude is a function of the load of the motor with which this transmission is associated, and means for producing from said signal the ratio change characteristics. The device further comprises means for producing from the generator signal an additional electric signal whose amplitude is a function of the frequency of the first signal, means for weighting and comparing said first signal and said additional signal so as to obtain a signal representing periodically the desired state of the transmission, and means for memorizing the desired state of the transmission connected to the measuring and comparing means to change the transmission from one ratio to the next ratio as a function of the signal produced by the weighting and comparing means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.