Control strategy for a throttled inlet, high pressure, diesel engine oil pump
US6439200B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Aug 16, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/31
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control strategy for a throttled inlet oil pump that supplies high-pressure oil to a rail that serves fuel injectors of a diesel engine. A processor processes certain data to develop data for selectively restricting the throttle at the pump inlet. The processor develops error data defining error between a desired injector control pressure in the rail and actual injector control pressure in the rail. For a prevailing value of the error data, the processor adds a correlated offset data value to introduce an offset into the prevailing error data value, thereby creating an offset error data value. The processor further processes the offset error data value to create a value for the data that establishes the throttle restriction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.