Patent · US Active

Method and device for controlling a tank ventilation device for a motor vehicle

US8584654B2 · kind B2 · utility

2Cited by

19References

19Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Stephane Closet · Gettorf, DE
Wolfgang Mai · Kronberg, DE
Jens Pache · Kelkheim, DE

Key dates

Filing date	May 27, 2009
Grant date	Nov 19, 2013
Priority date	—
Expiry date	Sep 10, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/0379
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for controlling a tank ventilation device (102) for a motor vehicle (100) is proposed in which first of all a tank vent valve (28) of the tank ventilation device (102) is closed. Then, the value of a control signal for the tank vent valve (28) is increased in the sense of an opening of the tank vent valve (28) until a leak detection means (23, 31) associated with the tank ventilation device (102) recognizes a leak in the tank ventilation device (102). The value of the control signal at which the leak in the tank ventilation device (102) is recognized is identified as the opening control value for opening the tank vent valve (28). In this way, the opening control value for the tank vent valve (28) can be determined with a high frequency and precision.

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