Patents by Inventor Ralf Hartrampf

Ralf Hartrampf 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: 10253878
    Abstract: A device for locking an operation element of an automatic transmission of a vehicle may comprise a rotationally mounted locking comb including a locking contour configured to be coupled with an operation element. The device may further comprise a locking element, where the locking element is configured to be arranged in a first position outside the locking contour to release the locking comb for a rotational movement to allow a shifting movement of the operation element. The locking element may be configured to be arranged in a second position in the locking contour to fix the locking comb for locking the operation element. The device may further comprise a rotationally mounted set ring with a control contour for guiding the locking element between the first position and the second position.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: April 9, 2019
    Assignees: ZF Friedrichshafen AG, Lemförder Electric GmbH
    Inventors: Ludger Rake, Andreas Giefer, Sascha Rosentreter, Ralf Hartrampf
  • Patent number: 10100926
    Abstract: A device for shifting an operation element of an automatic transmission of a vehicle in a parking position includes a rotationally mounted locking comb directly coupled with the operation element, with a stop member, a locking pin which is designed in a first position to fix the locking comb and in a second position to release the locking comb for a rotational movement, and a rotationally mounted set collar with a switching cam and a catch, wherein the switching cam is formed at a rotational movement of the set collar to move the locking pin from the first position to the second position, and the catch is formed at the rotational movement of the set collar to entrain the stop member to turn the locking comb so far that the operation element is shifted to the parking position.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 16, 2018
    Assignees: ZF FRIEDRICHSHAFEN AG, LEMFÖRDER ELECTRONIC GMBH
    Inventors: Ludger Rake, Andreas Giefer, Sascha Rosentreter, Ralf Hartrampf
  • Publication number: 20160245403
    Abstract: A device for shifting an operation element of an automatic transmission of a vehicle in a parking position includes a rotationally mounted locking comb directly coupled with the operation element, with a stop member, a locking pin which is designed in a first position to fix the locking comb and in a second position to release the locking comb for a rotational movement, and a rotationally mounted set collar with a switching cam and a catch, wherein the switching cam is formed at a rotational movement of the set collar to move the locking pin from the first position to the second position, and the catch is formed at the rotational movement of the set collar to entrain the stop member to turn the locking comb so far that the operation element is shifted to the parking position.
    Type: Application
    Filed: September 17, 2014
    Publication date: August 25, 2016
    Applicants: ZF Friedrichshafen AG, Lemförder Electronic GmbH
    Inventors: Ludger RAKE, Andreas GIEFER, Sascha ROSENTRETER, Ralf HARTRAMPF
  • Publication number: 20160238128
    Abstract: A device for locking an operation element of an automatic transmission of a vehicle may comprise a rotationally mounted locking comb including a locking contour configured to be coupled with an operation element. The device may further comprise a locking element, where the locking element is configured to be arranged in a first position outside the locking contour to release the locking comb for a rotational movement to allow a shifting movement of the operation element. The locking element may be configured to be arranged in a second position in the locking contour to fix the locking comb for locking the operation element. The device may further comprise a rotationally mounted set ring with a control contour for guiding the locking element between the first position and the second position.
    Type: Application
    Filed: September 17, 2014
    Publication date: August 18, 2016
    Applicants: ZF Friedrichshafen AG, Lemförder Electronic GmbH
    Inventors: Ludger Rake, Andreas Giefer, Sascha Rosentreter, Ralf Hartrampf
  • Patent number: 9389102
    Abstract: A selector lever arrangement for operating a transmission in a motor vehicle with a mounting fixture, a selector lever which is mounted at the fixture in such a way that it can be moved into the designated selector lever positions and an optical detection device for the selector lever position, which includes a carrier, several optical sensors which are arranged on the carrier, an optical deflector, at least one self-luminous light source that is arranged on the carrier, by means of which light can be directed onto the sensors via the deflectors, and a coding element equipped with an optical coding that is arranged within the optical path, which can be shifted into the designated coding positions by means of moving the selector lever, whereby the coding element is intended to be allocated between the sensors and the deflector that is made in form of a light guiding element, which is arranged at the carrier.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: July 12, 2016
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Ralf Hartrampf, Andreas Giefer, Ludger Rake
  • Patent number: 9261346
    Abstract: A position detection device having a first electrode pair, an electrically conductive body that forms an electrical resistor which is electrically connected to the electrodes of the first electrode pair and extends in a first direction (y), between them, and with a measurement electrode which is in electrically conductive contact with the surface of a measurement area of the body located between the electrodes of the first electrode pair and can move relative thereto. The body is electrically connected to the electrodes of a second electrode pair and extends between them in a second direction (x) such that the measurement area is located between the electrodes of the second electrode pair.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: February 16, 2016
    Assignee: ZF Friedrichshafen AG
    Inventors: Ralf Hartrampf, Andreas Giefer, Ludger Rake
  • Publication number: 20150159750
    Abstract: A gearshift lever assembly for actuating a vehicle transmission, having a mounting, a gearshift lever moveably supported on the mounting and which can be moved to predefined gearshift lever positions, a blocking device that can be moved to predefined blocking device positions, in which the gearshift lever can be locked to the mounting in a first gearshift lever position by means of the blocking device, a release mechanism, comprising a switch that responds to magnetic fields and a magnet, the spacing of which to one another can be varied by moving the blocking device such that, in the first gearshift lever position, the switch can be activated by the magnetic field of the magnet when the blocking device is in a first blocking device position, and at least one shielding element between the magnet and the switch can be placed in a positioned and removed from this position, by means of which the switch can be shielded from the magnetic field of the magnet in at least one other gearshift lever position of the pre
    Type: Application
    Filed: March 14, 2013
    Publication date: June 11, 2015
    Inventors: Ludger Rake, Andreas Giefer, Ralf Hartrampf
  • Publication number: 20150122981
    Abstract: A selector lever arrangement for operating a transmission in a motor vehicle with a mounting fixture, a selector lever which is mounted at the fixture in such a way that it can be moved into the designated selector lever positions and an optical detection device for the selector lever position, which includes a carrier, several optical sensors which are arranged on the carrier, an optical deflector, at least one self-luminous light source that is arranged on the carrier, by means of which light can be directed onto the sensors via the deflectors, and a coding element equipped with an optical coding that is arranged within the optical path, which can be shifted into the designated coding positions by means of moving the selector lever, whereby the coding element is intended to be allocated between the sensors and the deflector that is made in form of a light guiding element, which is arranged at the carrier.
    Type: Application
    Filed: March 12, 2013
    Publication date: May 7, 2015
    Inventors: Ralf Hartrampf, Andreas Giefer, Ludger Rake
  • Publication number: 20140111228
    Abstract: A position detection device having a first electrode pair, an electrically conductive body that forms an electrical resistor which is electrically connected to the electrodes of the first electrode pair and extends in a first direction (y), between them, and with a measurement electrode which is in electrically conductive contact with the surface of a measurement area of the body located between the electrodes of the first electrode pair and can move relative thereto. The body is electrically connected to the electrodes of a second electrode pair and extends between them in a second direction (x) such that the measurement area is located between the electrodes of the second electrode pair.
    Type: Application
    Filed: July 9, 2012
    Publication date: April 24, 2014
    Applicant: ZF Friedrichshafen AG
    Inventors: Ralf Hartrampf, Andreas Giefer, Ludger Rake
  • Patent number: 8410788
    Abstract: A method of diagnosing an electronic display device (1) having a screen (3) and a graphics memory (2) in which image data (14), of an image displayed or to be displayed on the screen (3), are one of stored or changed. A measured value (15) characterizes a current consumption or the change in current consumption of the screen (3) or display device (1) while a reference value (16) characterizes the current consumption or the change in current consumption of the screen (3) or display device (1) on the basis of the image data (14) or the change in image data (14). The method compares the reference value (16) to the measured value (15) to determine any malfunction or error in the electronic display device (1).
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: April 2, 2013
    Assignee: ZF Friedrichshafen AG
    Inventors: Ralf Hartrampf, Ludger Rake, Andreas Giefer
  • Publication number: 20100301876
    Abstract: A method of diagnosing an electronic display device (1) having a screen (3) and a graphics memory (2) in which image data (14), of an image displayed or to be displayed on the screen (3), are one of stored or changed. A measured value (15) characterizes a current consumption or the change in current consumption of the screen (3) or display device (1) while a reference value (16) characterizes the current consumption or the change in current consumption of the screen (3) or display device (1) on the basis of the image data (14) or the change in image data (14). The method compares the reference value (16) to the measured value (15) to determine any malfunction or error in the electronic display device (1).
    Type: Application
    Filed: December 4, 2008
    Publication date: December 2, 2010
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Ralf Hartrampf, Ludger Rake, Andreas Giefer