Patents by Inventor Marcus Drevo

Marcus Drevo 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).

  • Tire pressure estimation
    Patent number: 7240542
    Abstract: A method, computer program product and apparatus for estimating the pneumatic pressure of a tire on a vehicle, comprising the steps of: receiving as an input a vehicle status sensor signal; estimating first parameter values of an adaptive filter based on a predetermined model on the vehicle status dependent on the vehicle status sensor signal; calculating, dependent on said first model parameter values, a first tire pressure indication value (?) being dependent on and indicative of the pneumatic pressure of the tire. Specifically, the vehicle status signal may be an input a wheel angular velocity signal (1) and a lateral movement indication signal; the adaptive filter is based on a predetermined model on lateral vehicle dynamics dependent on the angular velocity of said wheel and the lateral movement of said vehicle.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: July 10, 2007
    Inventors: Fredrik Gustafsson, Marcus Drevö, Niclas Persson
  • Adaptive filter model for motor vehicle sensor signals
    Patent number: 7158866
    Abstract: A sensor system for combining first and second sensor signals, and generating a physical parameter values dependent on said sensor signals used in autocalibrating sensors improving the performance and quality of existing sensor signals and virtual sensors realizing new sensors by combining and integrating in adaptive filter models sensor signals representing same or different types of physical parameters.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: January 2, 2007
    Assignee: Nira Dynamics AB
    Inventors: Fredrik Gustafsson, Stefan Ahlqvist, Marcus Drevö, Urban Forssell, Niclas Persson
  • Adaptive filter model for motor veichle sensor signals
    Publication number: 20040199300
    Abstract: A sensor system for combining first and second sensor signals, and generating a physical parameter values dependent on said sensor signals used in autocalibrating sensors improving the performance and quality of existing sensor signals and virtual sensors realising new sensors by combining and integrating in adaptive filter models sensor signals representing same or different of physical parameters.
    Type: Application
    Filed: January 9, 2003
    Publication date: October 7, 2004
    Inventors: Fredrik Gustafsson, Stefan Ahlqvist, Marcus Drevo, Urban Forssell, Niclas Persson
  • Tire pressure estimation
    Publication number: 20030172728
    Abstract: A method, computer program product and apparatus for estimating the pneumatic pressure of a tire on a vehicle, comprising the steps of: receiving as an input a vehicle status sensor signal; estimating first parameter values of an adaptive filter based on a predetermined model on the vehicle status dependent on the vehicle status sensor signal; calculating, dependent on said first model parameter values, a first tire pressure indication value (&dgr;) being dependent on and indicative of the pneumatic pressure of the tire. Specifically, the vehicle status signal may be an input a wheel angular velocity signal (1) and a lateral movement indication signal; the adaptive filter is based on a predetermined model on lateral vehicle dynamics dependent on the angular velocity of said wheel and the lateral movement of said vehicle.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 18, 2003
    Inventors: Fredrik Gustafsson, Marcus Drevo, Niclas Persson