Method for checking the operational capability of a fuel tank ventilation valve
AssigneeRobert Bosch GmbH
InventorsMatthias Kuentzle, Uwe Neumann, Achim Jung, Andreas Pape
Life of this patent
Estimating the term…
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).
Claims7
Method for checking the operational capability of a fuel tank ventilation valve of a fuel tank ventilation system of a motor vehicle with an internal combustion engine having an intake manifold pressure-based detection of filling levels, wherein the fuel tank ventilation valve is selectively activated to open or close and in correlation to this the operational capability of the fuel tank ventilation valve is suggested from the thereby resulting intake manifold pressure (ps).
Dependencies are inferred from the claim text.