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. 09, 2007
Filed:
Oct. 05, 2005
Jan Piewek, Wolfsburg, DE;
Jens Jeschke, Braunschweig, DE;
Andreas Wagner, Magdeburg, DE;
Thomas Lang, Wolfsburg, DE;
Jan Piewek, Wolfsburg, DE;
Jens Jeschke, Braunschweig, DE;
Andreas Wagner, Magdeburg, DE;
Thomas Lang, Wolfsburg, DE;
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Abstract
A method for diagnosing an engine control unit () conducts an analysis as to whether the signal values from the cylinder pressure sensors () are faulty based on at least one characteristic value which is derived from an evaluation of signal values from the cylinder pressure sensors () of the cylinders () in a combustion engine (). In addition to this is described the engine control unit () designed to execute the method. Also hereby disclosed is a method which, based on symmetrical aspects, determines a crankshaft angle (phipCylMaxTDC) for a cylinder pressure maximum during push mode operation of the combustion engine ().