logo

For the Inventor, By the Inventor

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 9651453 B1

PDFFull Text
Date of Patent:
May. 16, 2017

Filed:

Jan. 30, 2013

Method for monitoring combustion processes in a combustion engine

Applicant:

Sem Ab, Amal, SE;

Inventor:

Jakob Angeby, Karlstad, SE;

Assignee:

SEM AB, Amal, SE;

Attorneys:

John M. Harrington, Esq.

Johnson, Marcou & Isaacs, LLC

Primary Examiner:

Eric S McCall

Int. Cl.
CPC ...
G01M 15/04 (2006.01); G01M 15/00 (2006.01); G01M 15/11 (2006.01); F02D 41/22 (2006.01); F02P 5/15 (2006.01); G01L 23/22 (2006.01); F02D 41/00 (2006.01); F02D 35/02 (2006.01); F02P 17/12 (2006.01);
U.S. Cl.
CPC ...
G01M 15/00 (2013.01); F02D 41/0085 (2013.01); F02D 41/221 (2013.01); F02P 5/1512 (2013.01); G01L 23/221 (2013.01); G01M 15/11 (2013.01); F02D 35/021 (2013.01); F02P 2017/125 (2013.01); Y02T 10/46 (2013.01);
Abstract

A method for extracting characterizing features from an ion current trace retrieved from spark plugs of cylinders of an internal combustion engine, comprises the steps of: i. dividing the ion current signal into crank angle subintervals; ii. calculating a measure of ion current in each crank angle subinterval; and iii. Performing a calculation on the measure of ion currents from different subintervals such that the result of the calculation is dimension free. Further it relates to a method of monitoring combustion processes where a plurality of ion current signals from a number of spark plugs (A,B) are retrieved and used in combination.

Find Patent Forward Citations

Angeby, Jakob. (2017). Method for monitoring combustion processes in a combustion engine (U.S. Patent No. 9651453). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9651453

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…