Patents by Inventor Per Anders Mattsson

Per Anders Mattsson 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 for controlling torque and a system for carrying out the method
    Patent number: 6807474
    Abstract: A method and a system in a vehicle to control the input torque to a drivetrain member (4) connected to an engine (2) is presented. The method comrises the steps of determining (101, 210) a value of the input torque (Ti) and determining (101, 210) the rotational speed (RPMi) of an input shaft (6) of the drivetrain member (4). A value of a first torque dependent function (Eoi) is calculated (105, 106, 206, 207), based on the rotational speed (RPMi), the value of the input torque (Ti) and a limit value of the input torque (TMax), the value of the input torque (Ti) exceeding the limit value of the input torque (TMax). If the value of the first torque dependent function (Eoi) exceeds a predetermined limit value of the first torque dependent function (EoMax), the input torque is reduced (109, 212).
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: October 19, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Anders Bergqvist, Per Anders Mattsson
  • Method for controlling torque and a system for carrying out the method
    Publication number: 20030225500
    Abstract: A method and a system in a vehicle to control the input torque to a drivetrain member (4) connected to an engine (2) is presented. The method comrises the steps of determining (101, 210) a value of the input torque (Ti) and determining (101, 210) the rotational speed (RPMi) of an input shaft (6) of the drivetrain member (4). A value of a first torque dependent function (Eoi) is calculated (105, 106, 206, 207), based on the rotational speed (RPMi), the value of the input torque (Ti) and a limit value of the input torque (TMax), the value of the input torque (Ti) exceeding the limit value of the input torque (TMax). If the value of the first torque dependent function (Eoi) exceeds a predetermined limit value of the first torque dependent function (EoMax), the input torque is reduced (109, 212).
    Type: Application
    Filed: February 14, 2003
    Publication date: December 4, 2003
    Inventors: Anders Bergqvist, Per Anders Mattsson