Hydrostatic vehicle control
US4523892A · kind A · utility
44Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1984 |
| Grant date | Jun 18, 1985 |
| Priority date | — |
| Expiry date | May 14, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/465
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus for controlling both pump displacement of a variable displacement hydraulic pump and the quantity of fuel delivered to an internal combustion engine for the purpose of delivering a requested hydraulic flow at a highly efficient operating point. The apparatus includes an underspeed control means for reducing pump displacement in response to the operating speed of the engine lugging below a desired operating speed. Additionally, a fuel control means operates to reduce the quantity of fuel delivered to the engine in response to the operating speed of the engine rising above the desired operating speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.