Fuel pressure sensor performance diagnostic systems and methods based on hydrodynamics of injecton
US8104334B2 · kind B2 · utility
19Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Apr 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control system comprises a model pressure determination module and a sensor diagnostic module. The model pressure determination module determines a modeled fuel rail pressure based on an injection duration of a fuel injector and a desired fuel mass injected by the fuel injector. The sensor diagnostic module generates a status of a fuel rail pressure sensor based on a comparison of the modeled fuel rail pressure and a sensed fuel rail pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.