Circuit arrangement for controlling the speed of rotation of a hydrostatic machine
US4726187A · kind A · utility
7Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | May 9, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/906
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control for the speed of rotation of a hydrostatic machine in which the controlled variable and generated in a speed controller and is made up of a proportional component and an integrating component is limited by a limiting signal which is also made up of a predetermined basic value and a ramp signal behaving proportionally to the actual pivot angle of the hydrostatic machine. The limiting signal thus limits the output signal of the speed controller so that a rapid response behaviour is obtained and fluctuations in the settling to the desired speed are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.