Patents by Inventor Johann Reiner Godefridus Cornelis Maria Van Beek

Johann Reiner Godefridus Cornelis Maria Van Beek 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 predicting the state of charge as well as the use time left of a rechargeable battery
    Patent number: 6515453
    Abstract: Disclosed is a method of estimating the state of charge of a rechargeable lithium battery. The first step of said method is to determine whether the battery is in an equilibrium state or in a non-equilibrium state. If the battery is determined to be in an equilibrium state, the voltage across the battery is measured and converted into an equilibrium state-of-charge value. If the battery is in a non-equilibrium state, the charge withdrawn from or supplied to the battery is calculated by means of current integration, and this charge is subtracted from or added to a state-of-charge value calculated earlier. Also disclosed is a method of estimating the time that an application can be used under predefined conditions.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: February 4, 2003
    Assignee: Koninklijke Philips Electronics
    Inventors: Hans Feil, Hendrik Johannes Bergveld, Johann Reiner Godefridus Cornelis Maria Van Beek
  • Method of predicting the state of charge as well as the use time left of a rechargeable battery
    Publication number: 20020117997
    Abstract: Disclosed is a method of estimating the state of charge of a rechargeable lithium battery. The first step of said method is to determine whether the battery is in an equilibrium state or in a non-equilibrium state. If the battery is determined to be in an equilibrium state, the voltage across the battery is measured and converted into an equilibrium state-of-charge value. If the battery is in a non-equilibrium state, the charge withdrawn from or supplied to the battery is calculated by means of current integration, and this charge is subtracted from or added to a state-of-charge value calculated earlier.
    Type: Application
    Filed: November 30, 2001
    Publication date: August 29, 2002
    Inventors: Hans Feil, Hendrik Johannes Bergveld, Johann Reiner Godefridus Cornelis Maria Van Beek