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:
Aug. 22, 2006
Filed:
Jan. 15, 2004
Franz Kunz, Altmannstein, DE;
Hong Zhang, Tegernheim, DE;
Franz Kunz, Altmannstein, DE;
Hong Zhang, Tegernheim, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An internal combustion engine has a camshaft whose phase can be adjusted with respect to a crankshaft by means of a setting mechanism. Also provided are a crankshaft sensor which senses the crankshaft angle and a camshaft sensor which senses the camshaft angle. The method comprises the following steps: A reference value for the phase is adapted in a predefined position of the setting mechanism when a predefined condition is satisfied. A measurement value for the phase is determined depending on the sensed crankshaft angle and camshaft angle. A corrected measurement value for the phase is determined depending on the reference value and the measurement value for the phase. A control signal for controlling the internal combustion engine is determined depending on the corrected measurement value.