Patents by Inventor Christian Sorqvist

Christian Sorqvist has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for knock detection
    Patent number: 8099996
    Abstract: This invention relates to a method for knock detection in a combustion engine, in which combustion is controlled by a control unit (2), which comprises the steps of, a) obtaining at least one sensor signal (4, 4?) carrying information of knock intensity related within a combustion chamber of the combustion engine (1); (b) processing the sensor signal (4, 4?) to obtain a knock intensity related detection variable (z1), (c) using said detection variable (z1) in said control unit (2) arranged to avoid a knocking condition in said combustion engine (1), if the value (z1) of said detection variable indicates knock when compared with a threshold value (T) wherein using two different computations/processes for said processing (5, 6) of the at least one sensor signal (4, 4?) to obtain two separate sub-values (y1, y2), and thereafter combining said sub-values (y1, y2) to obtain said detection variable (z1).
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: January 24, 2012
    Assignee: Hoerbiger Kompressortechnik Holding GmbH
    Inventors: Jan Nytomt, Anders Göras, Jakob Ängeby, Henric Andersson, Christian Sörqvist, Tomas Carlsson
  • Method and System for Knock Detection
    Publication number: 20100168990
    Abstract: This invention relates to a method for knock detection in a combustion engine, in which combustion is controlled by a control unit (2), which comprises the steps of, a) obtaining at least one sensor signal (4, 4?) carrying information of knock intensity related within a combustion chamber of the combustion engine (1); (b) processing the sensor signal (4, 4?) to obtain a knock intensity related detection variable (z1), (c) using said detection variable (z1) in said control unit (2) arranged to avoid a knocking condition in said combustion engine (1), if the value (z1) of said detection variable indicates knock when compared with a threshold value (T) wherein using two different computations/processes for said processing (5, 6) of the at least one sensor signal (4, 4?) to obtain two separate sub-values (y1, y2), and thereafter combining said sub-values (y1, y2) to obtain said detection variable (z1).
    Type: Application
    Filed: August 28, 2006
    Publication date: July 1, 2010
    Inventors: Jan Nytomt, Anders Göras, Jakob Ångeby, Henric Andersson, Christian Sorqvist, Tomas Carlsson