Patents by Inventor Erik Ott

Erik Ott 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).

  • Engine brake detection
    Patent number: 8312861
    Abstract: In a method for reducing engine vibrations during engine braking with a malfunctioning engine brake, the engine brake includes an arrangement for altering a timing of at least one exhaust valve and an arrangement for varying an exhaust gas back pressure. The method includes detecting piston acceleration for each cylinder in the engine during the use of the engine brake, comparing the detected piston acceleration with a predetermined reference value, decreasing exhaust gas back pressure during engine braking if at least one piston is detected with a piston acceleration deviating more than a predefined amount from the predetermined reference value so that the piston acceleration will be falling within the predefined amount from the predetermined reference value.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: November 20, 2012
    Assignee: Volvo Lastvagnar AB
    Inventors: Erik Ott, Jonas Nilsson
  • ENGINE BRAKE DETECTION
    Publication number: 20100258079
    Abstract: In a method for reducing engine vibrations during engine braking with a malfunctioning engine brake, the engine brake includes an arrangement for altering a timing of at least one exhaust valve and an arrangement for varying an exhaust gas back pressure. The method includes detecting piston acceleration for each cylinder in the engine during the use of the engine brake, comparing the detected piston acceleration with a predetermined reference value, decreasing exhaust gas back pressure during engine braking if at least one piston is detected with a piston acceleration deviating more than a predefined amount from the predetermined reference value so that the piston acceleration will be falling within the predefined amount from the predetermined reference value.
    Type: Application
    Filed: October 22, 2008
    Publication date: October 14, 2010
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Erik Ott, Jonas Nilsson