Patent · US Active

Method and device for checking the state of the outlet valves of an engine of a motor vehicle

US11761397B2 · kind B2 · utility

0Cited by

9References

9Claims

0Family size

Assignee

VITESCO TECHNOLOGIES GMBH · DE

Inventors

Tobias Braun · Undorf, DE
Jürgen Dingl · Regensburg, DE

Key dates

Filing date	Jul 28, 2020
Grant date	Sep 19, 2023
Priority date	—
Expiry date	Jul 28, 2040

Classification

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

Abstract

Various embodiments of the teachings herein include methods for operating a motor vehicle having combustion chambers. The methods may include: closing the combustion chambers of the motor vehicle towards the exhaust tract by bringing outlet valves of the combustion chambers into the closed state; checking whether the outlet valves of the combustion chambers of the motor vehicle are in a closed state by evaluating the pressure prevailing in an intake pipe of the motor vehicle; and in the event one or more of the outlet valves are not in a closed state, initiating countermeasures to comply with emissions protocols.

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