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:
May. 24, 2005
Filed:
Feb. 03, 2003
Applicants:
Ingolf Rupp, Kornwestheim, DE;
Michael Lehner, Muehlacker, DE;
Elmar Pietsch, Kornwestheim, DE;
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P005/00 ;
U.S. Cl.
CPC ...
Abstract
A method for determining the crankshaft position of an internal combustion engine is described with which, in the event of failure of the crankshaft sensor, the crankshaft position may be determined with relative precision at all times. For this purpose, the camshaft position is continuously detected by an absolute angle sensor, preferably in a defined time grid. By analyzing the camshaft positions detected in that way, a value for the instantaneous crankshaft position is determined.