Patent · US Active

Fuel pressure sensor performance diagnostic systems and methods based on hydrostatics in a fuel system

US8220322B2 · kind B2 · utility

15Cited by
4References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 2009
Grant dateJul 17, 2012
Priority date
Expiry dateJul 8, 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 a fuel pump flow rate and an engine fuel flow rate. 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 sensed by the fuel rail pressure sensor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.