Patent · US Active

Valve control processes for an internal combustion engine

US10450977B2 · kind B2 · utility

3Cited by

10References

7Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Josef Kainz · Salching, DE
Tobias Braun · Undorf, DE

Key dates

Filing date	Jun 17, 2015
Grant date	Oct 22, 2019
Priority date	—
Expiry date	Aug 30, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present disclosure relates to internal combustion engines and its teachings may be embodied in methods for controlling and identifying valve control times of an internal combustion engine. Some embodiments may include a method comprising: measuring dynamic pressure oscillations in the inlet section or outlet section of the respective series-production engine; determining a crankshaft-position feedback signal; determining the phase angles of selected signal frequencies using discrete Fourier transformation; and determining the valve control times of the respective series-production internal combustion engine based on the determined phase angles, the reference phase angles, and reference valve control times with the same signal frequencies of the pressure oscillations of a reference internal combustion engine or of a model function derived therefrom.

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