The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2019
Filed:
Jun. 17, 2015
Continental Automotive Gmbh, Hannover, DE;
Josef Kainz, Salching, DE;
Tobias Braun, Undorf, DE;
CONTINENTAL AUTOMOTIVE GMBH, Hannover, DE;
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.