Servo control system for transmission shaft speed control
US4807130A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1986 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Dec 24, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed is an electronic shaft synchronization system. The system employs a proportional integral controller for controlling the speed offset between two shafts approaching synchronization. The speed offset is determined by calculating an error signal representative of the shaft speed differences. Means for measuring the quality of the error signal is provided to allow the integrator to be initialized once the error signal reaches a first threshold. By initializing the integrator in this manner, the typical delay problem experienced with such integration is alleviated to allow a substantially faster synchronization between the shafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.