Patent · US Active

Method for checking the operational capability of a fuel tank ventilation valve

US8381705B2 · kind B2 · utility

0Cited by

2References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Matthias Kuentzle · Schwieberdingen, DE
Uwe Neumann · Coburg, DE
Achim Jung · Rain, DE
Andreas Pape · Brakel, DE

Key dates

Filing date	Apr 30, 2010
Grant date	Feb 26, 2013
Priority date	—
Expiry date	May 27, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M25/0827
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for checking the operational capability of a fuel tank ventilation valve (7) of a fuel tank ventilation system of a motor vehicle with an internal combustion engine (1) having an intake manifold pressure-based detection of filling levels is thereby characterized in that the fuel tank ventilation valve (7) is selectively activated to open or close and in correlation to this the operational capability of the fuel tank ventilation valve (7) is suggested from the thereby resulting intake manifold pressure (ps).

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