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.

Date of Patent:
Apr. 17, 2018

Filed:

May. 07, 2014
Applicant:

Sem Ab, Amal, SE;

Inventor:

Jorgen Bengtsson, Svanskog, SE;

Assignee:

SEM AB, Amal, SE;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 35/02 (2006.01); G01L 23/22 (2006.01); F02D 41/26 (2006.01); F02P 5/152 (2006.01); F02P 17/12 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 35/027 (2013.01); F02D 35/021 (2013.01); F02D 41/26 (2013.01); F02P 5/152 (2013.01); G01L 23/226 (2013.01); F02D 41/0025 (2013.01); F02P 2017/125 (2013.01); F02P 2017/128 (2013.01);
Abstract

The present invention relates to a method for controlling the performance of an engine, comprising the steps detecting an ion current in the form of a first signal analysing said first signal to determine at least one property determining a knock index based on said first signal and preferably on said at least one property combining said knock index with a plurality of factors related to properties of the engine or the operation of the engine to arrive at a engine index, and comparing said engine index with a sensitivity map of the engine to determine a correction required to improve the operation of the engine, and correcting the operation of the engine in accordance with the correction determined. The invention also relates to a system for controlling the performance of an engine.


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