Patents by Inventor Christian Lingenfelser

Christian Lingenfelser 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 and apparatus for estimating angles in a synchronous machine
    Patent number: 9225274
    Abstract: The invention relates to an apparatus for estimating angles in a synchronous machine (11), having an angle sensor device (15) which is designed to determine event-discrete measured values for a rotor angle (?) of a rotor of the synchronous machine (11) and to output a measurement signal dependent on the determined measured values, an estimation device (16) which is designed to record current and/or voltage signals from the synchronous machine (11), to calculate a deviation (??) of the rotor angle (?) of the rotor of the synchronous machine (11) from an expected rotor angle on the basis of the recorded current and/or voltage signals and to output a deviation signal dependent on the calculated deviation (??), and a combining device (17) which is designed to receive the measurement signal and the deviation signal and to calculate an estimated value ({circumflex over (?)}) for the rotor angle (?) of the rotor of the synchronous machine (11) from a combination of the measurement signal and the deviation signal.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: December 29, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Christian Lingenfelser, Eckart Mayer-John, Gunther Goetting
  • METHOD AND APPARATUS FOR ESTIMATING ANGLES IN A SYNCHRONOUS MACHINE
    Publication number: 20140184120
    Abstract: The invention relates to an apparatus for estimating angles in a synchronous machine (11), having an angle sensor device (15) which is designed to determine event-discrete measured values for a rotor angle (?) of a rotor of the synchronous machine (11) and to output a measurement signal dependent on the determined measured values, an estimation device (16) which is designed to record current and/or voltage signals from the synchronous machine (11), to calculate a deviation (??) of the rotor angle (?) of the rotor of the synchronous machine (11) from an expected rotor angle on the basis of the recorded current and/or voltage signals and to output a deviation signal dependent on the calculated deviation (??), and a combining device (17) which is designed to receive the measurement signal and the deviation signal and to calculate an estimated value ({circumflex over (?)}) for the rotor angle (?) of the rotor of the synchronous machine (11) from a combination of the measurement signal and the deviation signal.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 3, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Christian Lingenfelser, Eckart Mayer-John, Gunther Goetting