Patent · US Active

Method for operating an internal combustion engine of a motor vehicle, in particular of a motor car

US11181049B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Mathias Hauptvogel · Weferlingen, DE
Markus Schilling · Ludwigshafen, DE
Peter Hohner · Echterdingen, DE

Key dates

Filing date	Nov 27, 2018
Grant date	Nov 23, 2021
Priority date	—
Expiry date	Nov 27, 2038

Classification

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

Abstract

A method for operating an internal combustion engine having a cylinder, an intake valve, an air pipe, and a valve element disposed in the air pipe, includes detecting a signal for causing a fuel supply of the cylinder to switch off. The valve element is moved out of a first position into a second position triggering a lower flow cross-section while the fuel supply is still activated, where a first cam for actuating the intake valve is allocated to the intake valve. While the fuel supply is still activated, switching from the first cam to a second cam and via the second cam the intake valve is actuated such that the intake valve causes a reduced air intake. An exhaust cam shaft for actuating an exhaust valve is set in an advance direction such that a valve intersection of the intake valve and of the exhaust valve ceases.

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