Patents by Inventor Dirk Freundt

Dirk Freundt 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).

  • Monostatic multi-beam radar sensor for motor vehicles
    Patent number: 9063214
    Abstract: A radar sensor for motor vehicles includes a plurality of transmission and receiving antennas, which differ in their azimuthal directivity characteristic and to which a separate mixer is assigned, which mixes a transmitted signal with a received signal, at least one of the mixers being a transfer mixer, and at least one other of the mixers having a lower transfer output, wherein the assignment of the transmission and receiving antennas is asymmetrical with respect to the mixers differing in their transfer output.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: June 23, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Michael Klar, Thomas Binzer, Dirk Steinbuch, Dirk Freundt, Bernhard Lucas
  • Method and device for testing a fuel injector
    Patent number: 8646322
    Abstract: A method for selecting a procedure for determining the injection time of individual injection operations of a fuel injector, which may be supplied with pressurized fuel via a feed line, includes activating the fuel injector using various known activation durations in the vicinity of a predefined operating point of the fuel injector; detecting the pressure curve over time in the feed line for a number of injection operations; evaluating the detected pressure curves over time using at least two different procedures for determining the injection time from the particular pressure curve; determining the correlation between the determined injection times and the particular activation period; selecting the procedure with the highest correlation.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: February 11, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Henner, Bertram Rensch, Christian Boie, Gunter Freitag, Jochen Friedmann, Joerg Staib, Edgar Holl, Daniel Strack, Dirk Freundt
  • METHOD AND DEVICE FOR TESTING A FUEL INJECTOR
    Publication number: 20130025354
    Abstract: A method for selecting a procedure for determining the injection time of individual injection operations of a fuel injector, which may be supplied with pressurized fuel via a feed line, includes activating the fuel injector using various known activation durations in the vicinity of a predefined operating point of the fuel injector; detecting the pressure curve over time in the feed line for a number of injection operations; evaluating the detected pressure curves over time using at least two different procedures for determining the injection time from the particular pressure curve; determining the correlation between the determined injection times and the particular activation period; selecting the procedure with the highest correlation.
    Type: Application
    Filed: January 3, 2011
    Publication date: January 31, 2013
    Inventors: Wolfgang Henner, Bertram Rensch, Christian Boie, Gunter Freitag, Jochen Friedmann, Joerg Staib, Edgar Holl, Daniel Strack, Dirk Freundt
  • MONOSTATIC MULTI-BEAM RADAR SENSOR FOR MOTOR VEHICLES
    Publication number: 20110095937
    Abstract: A radar sensor for motor vehicles includes a plurality of transmission and receiving antennas, which differ in their azimuthal directivity characteristic and to which a separate mixer is assigned, which mixes a transmitted signal with a received signal, at least one of the mixers being a transfer mixer, and at least one other of the mixers having a lower transfer output, wherein the assignment of the transmission and receiving antennas is asymmetrical with respect to the mixers differing in their transfer output.
    Type: Application
    Filed: June 25, 2008
    Publication date: April 28, 2011
    Inventors: Michael Klar, Thomas Binzer, Dirk Steinbuch, Dirk Freundt, Bernhard Lucas