Patent · US Active

Method for determining the cylinder air-charge of an internal combustion engine in a non-fired operation

US11022054B2 · kind B2 · utility

0Cited by

10References

12Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Jan Vogelsang · Braunschweig, DE
Tobias Viereg · Meine, DE
Marcin Piorun · Wolfsburg, DE
Andre Shurkewitsch · Calberlah, DE
Heiko Sternberg · Wolfsburg, DE
Nikolaus Zimbalist · Edemissen, DE

Key dates

Filing date	Aug 24, 2020
Grant date	Jun 1, 2021
Priority date	—
Expiry date	Aug 24, 2040

Classification

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

Abstract

A method for determining the cylinder air-charge of an internal combustion engine in a non-fired operation, wherein a method for determining the cylinder air-charge in a fired operation is performed. According to the invention, provision is made that in the method for determining the cylinder air-charge in the fired operation, a correction factor is provided as a function of engine speed and engine load which adjusts the value of the cylinder air-charge determined by the method in the fired operation to the non-fired operation. Thus, the previously known methods can be improved and made more efficient, in particular in view of the deviations of up to 30% between the cylinder air-charge values in the non-fired operation and the modeled values of the fired operation.

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