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.:

US 9523627 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 20, 2016

Filed:

Apr. 11, 2014
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventor:

Jens Boettcher, Schwieberdingen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/11 (2006.01); G01M 15/06 (2006.01); F02D 41/00 (2006.01); G01P 3/489 (2006.01); F02D 41/14 (2006.01); F02D 41/28 (2006.01);
U.S. Cl.
CPC ...
G01M 15/06 (2013.01); F02D 41/0097 (2013.01); G01P 3/489 (2013.01); F02D 2041/1432 (2013.01); F02D 2041/286 (2013.01); F02D 2200/1012 (2013.01);
Abstract

A method for determining segment times of a sensor wheel of an internal combustion engine, the sensor wheel being non-rotatably connected to a crankshaft of the internal combustion engine, marks being situated along the circumference of the sensor wheel, and the crankshaft of the internal combustion engine covering predetermined angle ranges during the segment times. Tooth times are determined as time intervals between two marks of the sensor wheel; a low-pass filtering is applied to the determined tooth times, and filtered tooth times are determined as a result of the low-pass filtering. Segment times of the sensor wheel are determined as a sum of filtered tooth times of a certain number of successive marks of the sensor wheel.


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