Patents by Inventor Kristian AHLBERG

Kristian AHLBERG 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 of controlling a coupling arrangement in a gearbox
    Patent number: 10828976
    Abstract: A method of controlling the coupling arrangement in a gearbox, comprising: displacing the coupling sleeve to the second position by applying a first force on the coupling sleeve in the direction from the first position to the second position, overcoming a spring force acting on the coupling sleeve in the direction from the second position to the first position; relieving the first force on the coupling sleeve when the coupling sleeve is in the second position, and when a reaction force acting on the coupling sleeve overcomes the spring force, which reaction force is a result of torque transferred by the third engagement means on the coupling sleeve; applying the first force on the coupling sleeve in the direction from the first position to the second position, if the coupling sleeve is leaving the second position; and reducing the torque transferred by the coupling sleeve using the second power source.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 10, 2020
    Assignee: Scania CV AB
    Inventors: Jörgen Forsberg, Kristian Ahlberg
  • A METHOD OF CONTROLLING A COUPLING ARRANGEMENT IN A GEARBOX
    Publication number: 20190210448
    Abstract: A method of controlling the coupling arrangement in a gearbox, comprising: displacing the coupling sleeve to the second position by applying a first force on the coupling sleeve in the direction from the first position to the second position, overcoming a spring force acting on the coupling sleeve in the direction from the second position to the first position; relieving the first force on the coupling sleeve when the coupling sleeve is in the second position, and when a reaction force acting on the coupling sleeve overcomes the spring force, which reaction force is a result of torque transferred by the third engagement means on the coupling sleeve; applying the first force on the coupling sleeve in the direction from the first position to the second position, if the coupling sleeve is leaving the second position; and reducing the torque transferred by the coupling sleeve using the second power source.
    Type: Application
    Filed: April 21, 2017
    Publication date: July 11, 2019
    Applicant: Scania CV AB
    Inventors: Jörgen FORSBERG, Kristian AHLBERG