Patent · US Active

Method for detecting a sticking tank vent valve

US10166862B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Florian Guenther · Freiberg, DE
Guido Schock · Herten, DE
Jochen Knecht · Reutlingen, DE
Thomas Herges · Eberdingen, DE

Key dates

Filing date	Jul 4, 2016
Grant date	Jan 1, 2019
Priority date	—
Expiry date	Jul 4, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for detecting a sticking tank vent valve in a motor vehicle, a temperature sensor being situated in a tank vent line between the tank vent valve and an inlet point into an intake manifold or into a turbocharger and sticking of the tank vent valve being detected when the absolute value of a correlation of a calculated tank ventilation mass flow and of a signal value of the temperature sensor violates a predefinable threshold value.

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