Method and apparatus for controlling fuel rail pressure using fuel pressure sensor error
US8281768B2 · kind B2 · utility
4Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0225
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system and method for controlling a fuel system of an engine includes a steady state determination module determining the engine is operating at a steady state and a memory storing a first fuel correction. A fuel pump control module commands a predetermined fuel rail pressure change. The memory stores a second fuel correction after the predetermined fuel rail pressure change. A sensor error correction module determines a fuel rail pressure sensor error based on the first fuel correction and the second fuel correction and determines a fuel rail pressure in response to the sensor error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.