Patent · US Active

Method for operating a fuel tank arrangement for a motor vehicle, and corresponding fuel tank arrangement

US12123377B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignees

AUDI AG · DE
VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Oliver Grunwald · Hockenheim, DE
Aleksandar Tesic · Wolfsburg, DE

Key dates

Filing date	Dec 7, 2021
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Dec 7, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M25/0854
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating a fuel tank arrangement for a motor vehicle. The fuel tank arrangement has a fuel tank, a hydrocarbon filter and a pump. The fuel tank is fluidically connected via a tank shut-off valve to the hydrocarbon filter and the hydrocarbon filter is fluidically connected, on the one hand, via the pump to an external environment of the fuel tank arrangement and, on the other hand, via a purge valve to an intake tract of an internal combustion engine. A first leakage test mode is carried out when the pressure in the fuel tank is greater than a pressure threshold value, in which a shut-off valve arranged in terms of flow between the pump and the external environment is closed and the tank shut-off valve is opened.

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