Patents by Inventor Albrecht Foll

Albrecht Foll 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).

  • Patent number: 7486080
    Abstract: An electrical coupling state is monitored between an inductive load and a circuit configuration. The latter has a first and a second coupling point for coupling to the inductive load. A first voltage value is determined between the first and second coupling points. The first voltage value is tested for the occurrence of a characteristic voltage pulse, which can be triggered by reduction of a magnetic flux in the inductive load by way of a steep-edged change in the amount of current flow through the inductive load. An error is identified in the coupling state if the characteristic voltage pulse does not occur within a predefinable time period. The absence of an error in the coupling state is also identified if the voltage pulse does occur.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: February 3, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventors: Albrecht Föll, Jose Kissler, Thomas Röhrl
  • Publication number: 20060224338
    Abstract: An electrical coupling state is monitored between an inductive load and a circuit configuration. The latter has a first and a second coupling point for coupling to the inductive load. A first voltage value is determined between the first and second coupling points. The first voltage value is tested for the occurrence of a characteristic voltage pulse, which can be triggered by reduction of a magnetic flux in the inductive load by way of a steep-edged change in the amount of current flow through the inductive load. An error is identified in the coupling state if the characteristic voltage pulse does not occur within a predefinable time period. The absence of an error in the coupling state is also identified if the voltage pulse does occur.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 5, 2006
    Inventors: Albrecht Foll, Jose Kissler, Thomas Rohrl
  • Patent number: 6717289
    Abstract: A method for controlling an emergency power supply of at least two power loads, includes steps of: assigning an energy storage device of the power supply to one of the at least two power loads; and after a failure of a power source for a predetermined autarchy time period, using the energy storage device to ensure that power is supplied to the one of the at least two power loads; and after an occurrence of at least one predetermined condition, using residual energy present in the energy storage device to supply power to another one of the at least two power loads. Preferably a firing device of a vehicle occupant protection system is used as one of the power loads.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: April 6, 2004
    Assignee: Siemens Aktiengesellscahft
    Inventors: Walter Baumgartner, Albrecht Föll, Gregor Weigl
  • Publication number: 20020171293
    Abstract: A method for controlling an emergency power supply of at least two power loads, includes steps of: assigning an energy storage device of the power supply to one of the at least two power loads; and after a failure of a power source for a predetermined autarchy time period, using the energy storage device to ensure that power is supplied to the one of the at least two power loads; and after an occurrence of at least one predetermined condition, using residual energy present in the energy storage device to supply power to another one of the at least two power loads. Preferably a firing device of a vehicle occupant protection system is used as one of the power loads.
    Type: Application
    Filed: June 17, 2002
    Publication date: November 21, 2002
    Inventors: Walter Baumgartner, Albrecht Foll, Gregor Weigl