Patents by Inventor Tobias Ehlgen

Tobias Ehlgen 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).

  • Publication number: 20230214660
    Abstract: A method for training a self-learning algorithm, where the algorithm is designed, as a function of one or more physical parameters of a technical device, to predict one or more values of one or more physical parameters of the device. The algorithm undergoes a basic training using values of the physical parameters that have been obtained by simulation of at least part of the device. The algorithm then undergoes build-up training with measured values of the physical parameters.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 6, 2023
    Applicant: ZF Friedrichshafen AG
    Inventors: Christian Riess, Fabio Da Costa Ferreira, Daniel Wolf, Dietmar Tilch, Tobias Ehlgen
  • Patent number: 9676321
    Abstract: A method for recognizing an intensity of an aerosol in a field of view of a camera of a vehicle includes: reading in image information of an image of the camera, providing a color indicator value for at least one subsection of the image, the color indicator value representing a relation between (i) a first parameter representing a value obtained with application of a first color filter to the image information in the subsection, and (ii) a second parameter representing a value obtained without application of a color filter, or with application of a second color filter differing from the first color filter, and providing a gradient indicator value representing a brightness difference of a different image region of the image, an aerosol intensity value being determined using the color indicator and the gradient indicator values.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: June 13, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Tobias Ehlgen, Sebastian Van Staa
  • Patent number: 9637046
    Abstract: A method for switching on a high-beam headlight of a vehicle includes: a step of receiving high-beam information by way of an interface, the high-beam information indicating a possibility of a glare-free operation of the high-beam headlight; a step of determining a traveled distance of the vehicle in response to receiving the high-beam information, and a step of supplying switch-on information for activating the high-beam headlight if the traveled distance after receiving the high-beam information is greater than a predefined minimum distance.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 2, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Johannes Foltin, Robert Meisner
  • Patent number: 9637047
    Abstract: A method for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle includes reading in at least one configuration position of an illumination unit on another vehicle and/or of a vehicle contour of the other vehicle to provide an identification signal of the other vehicle. In addition, the method includes ascertaining the type of the other vehicle, using the identification signal of the other vehicle, and outputting a control signal for adapting the upper headlight beam boundary, the control signal being output taking the ascertained type of vehicle into account.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 2, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Robert Meisner, Johannes Foltin, Tobias Ehlgen
  • Patent number: 9505339
    Abstract: A method for activating at least one headlight of a vehicle has: a step of ascertaining a traffic density from an item of information about road users in the surroundings of the vehicle; a step of determining a control parameter for controlling an emission characteristic of the headlight using the ascertained traffic density; and a step of providing the control command for controlling an emission characteristic of the headlight using the control parameter.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: November 29, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Tobias Ehlgen, Stefan Nordbruch, Johannes Foltin, Robert Meisner
  • Patent number: 9386284
    Abstract: An actuating device is provided for a device for monitoring the vehicle surroundings, which actuating device is functionally connected to the device for monitoring the vehicle surroundings. A calibration of the device for monitoring the vehicle surroundings is able to be initiated by means of the actuating device, the initiation of the calibration being correlated with a weather parameter detected by the actuating device.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: July 5, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Florian Raisch
  • Patent number: 9340148
    Abstract: A method for increasing the illumination range of a vehicle, having a step of receiving high beam activation information via an interface, the high beam activation information indicating an option for the glare-free operation of the high beam. The method also includes a step of ascertaining a distance covered by the vehicle in response to receiving the high beam activation information, and a step of providing range-increasing information for increasing the illumination range when the covered distance after receiving the high beam activation information is greater than a predetermined minimum distance, and/or a step of providing at least one value of the increase in the illumination range (illumination range-increasing value) as a function of the distance covered.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 17, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Michael Fischer
  • Patent number: 9297754
    Abstract: A method for detection or the density determination or the classification of an aerosol using spectroscopy includes: using an image taken by a camera for a vehicle, a first value of a parameter being ascertained from the at least one image in a first step, using a first color filtering, and a second value for the same parameter being ascertained in a second step having a second color filtering, which is different from the preceding color filtering, and the values ascertained in the at least two steps are compared, and as a function of the result of the comparison, the detection or the density determination or the classification of the aerosol is carried out.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: March 29, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Sebastian Van Staa
  • Patent number: 9260052
    Abstract: A method is described for controlling a headlight system of a vehicle. The method includes a step of reading in an aerosol signal which represents a recognized intensity of an aerosol in a field of vision of a camera of the vehicle. Furthermore, the method includes a step of activating a change in a light emission in a lighting area ahead of the vehicle with the aid of the headlight system as a response to the aerosol signal.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: February 16, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Sebastian Van Staa
  • Patent number: 9260051
    Abstract: A method for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle. The method includes detecting a time curve of a pitch rate of the vehicle or a value that is dependent on the pitch rate and/or of a roll rate of the vehicle or a value that is dependent on the roll rate. The method also includes ascertaining an envelope curve and/or an amplitude of the time curve and/or an average value of the time curve. The method also includes providing a control signal for adapting the upper headlight beam boundary of the headlight beam.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: February 16, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Johannes Foltin, Robert Meisner
  • Patent number: 9114754
    Abstract: A method for beam range regulation of at least one headlamp of a vehicle includes: reading in a camera image of at least one camera of the vehicle, the camera image including at least a part of a representation of a projection surface of a light cone of the headlamp in front of the vehicle; determining at least one coordinate of at least one predefined brightness transition and/or of a predefined brightness inhomogeneity in the camera image; comparing the coordinate with a target coordinate in order to obtain a difference of the coordinate from the target coordinate, the target coordinate representing a coordinate at which the predefined brightness transition or the predefined brightness inhomogeneity is expected; and controlling the headlamp with a beam range modification signal that is a function of the difference, in order to modify the beam range.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: August 25, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Stefan Nordbruch, Johannes Foltin
  • Patent number: 9102265
    Abstract: In a method for debouncing light-characteristic changes (e.g., streetlights, headlights of other vehicles), which are ascertained from image data of a camera for a vehicle, light-characteristic changes are identified in a continuous image sequence and a distance in time is determined between the light-characteristic changes. A spatial distance between the light-characteristic changes is determined with reference to the speed of the vehicle and from the distance in time between the light-characteristic changes. The debouncing is based on the spatial distance.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: August 11, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Petko Faber
  • Patent number: 9058542
    Abstract: A method for checking the visibility of a camera for surroundings of an automobile is proposed which includes receiving a camera image and a step of dividing the camera image into a plurality of partial images. A visibility value is determined based on a number of objects detected in the particular partial image. A visibility probability is subsequently determined for each of the partial images based on the blindness values and the visibility values of the particular partial images.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: June 16, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Tobias Ehlgen, Daniel Lipinski
  • Publication number: 20150151669
    Abstract: A method for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle includes reading in at least one configuration position of an illumination unit on another vehicle and/or of a vehicle contour of the other vehicle to provide an identification signal of the other vehicle. In addition, the method includes ascertaining the type of the other vehicle, using the identification signal of the other vehicle, and outputting a control signal for adapting the upper headlight beam boundary, the control signal being output taking the ascertained type of vehicle into account.
    Type: Application
    Filed: December 3, 2012
    Publication date: June 4, 2015
    Inventors: Robert Meisner, Johannes Foltin, Tobias Ehlgen
  • Publication number: 20150051797
    Abstract: A method for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle. The method includes detecting a time curve of a pitch rate of the vehicle or a value that is dependent on the pitch rate and/or of a roll rate of the vehicle or a value that is dependent on the roll rate. The method also includes ascertaining an envelope curve and/or an amplitude of the time curve and/or an average value of the time curve. The method also includes providing a control signal for adapting the upper headlight beam boundary of the headlight beam.
    Type: Application
    Filed: December 3, 2012
    Publication date: February 19, 2015
    Inventors: Tobias Ehlgen, Johannes Foltin, Robert Meisner
  • Publication number: 20140375812
    Abstract: A method for modifying a plane of projection in response to detection of at least one object, in particular, at least one raised object in the surroundings of a vehicle. The surroundings of the vehicle are monitored for raised objects. The coordinates of a base point of at least one detected, raised object and the width thereof are determined. The plane of projection is raised in front of the at least one detected, raised object, starting from the base point thereof, if indicated, within a transition region.
    Type: Application
    Filed: September 24, 2012
    Publication date: December 25, 2014
    Inventors: Tobias Ehlgen, Leo Vepa
  • Publication number: 20140334168
    Abstract: A method for activating at least one headlight of a vehicle has: a step of ascertaining a traffic density from an item of information about road users in the surroundings of the vehicle; a step of determining a control parameter for controlling an emission characteristic of the headlight using the ascertained traffic density; and a step of providing the control command for controlling an emission characteristic of the headlight using the control parameter.
    Type: Application
    Filed: May 21, 2012
    Publication date: November 13, 2014
    Inventors: Tobias Ehlgen, Stefan Nordbruch, Johannes Foltin, Robert Meisner
  • Publication number: 20140333806
    Abstract: A method for adapting a filter property of an adaptive color filter of an image point of an imager of a camera. The method includes ascertaining a required detection property of the image point, determining a required filter property of the color filter, to implement the required detection property of the image point, and providing a setting signal for setting the filter property of the color filter according to the required filter property.
    Type: Application
    Filed: July 17, 2012
    Publication date: November 13, 2014
    Inventor: Tobias Ehlgen
  • Publication number: 20140301094
    Abstract: A method for setting a headlight range of a headlight of a vehicle. The method includes a step of provision a signal which represents a pitch angle of the vehicle and a step of changing the headlight range of the headlight in response to the provided signal.
    Type: Application
    Filed: June 25, 2012
    Publication date: October 9, 2014
    Inventors: Tobias Ehlgen, Johannes Foltin, Thomas Friedrich
  • Patent number: 8818093
    Abstract: In a method for analyzing an image of an image recording device for a vehicle, a piece of brightness information of the image is determined, taking an exposure characteristic of the image recording device into account, and a threshold value is set as a function of the piece of brightness information. An image structure of the image is furthermore determined, and a blindness value for the image is determined on the basis of the image structure, using the threshold value.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: August 26, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Tobias Ehlgen, Ulrich Seger, Paul Ruhnau