Patents by Inventor Ludger Rake

Ludger Rake 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: 20100101353
    Abstract: An actuating device for selecting shift positions of a shift-by-wire gear shifting transmission. The actuating device comprises a selector lever that may be moved between at least a drive position and a parking lock position, the lever having stable selector lever settings, and a locking device for locking the selector lever in the parking lock position. The locking device comprises an actuator device such that the selector lever may be moved from the drive position into the park position by way of the locking and actuator devices. The actuating device makes it possible that the position of the selector lever of the actuating device matches the actual shifting state of the transmission at all times, and thereby offers reliable optical and tactile feedback for the driver of the actual shifting state of the transmission and may also serve as a mechanical emergency actuator for the parking lock.
    Type: Application
    Filed: March 4, 2008
    Publication date: April 29, 2010
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Andreas Giefer, Jorg Meyer, Ludger Rake
  • Publication number: 20100071506
    Abstract: An operating device for selecting shift stages in a shift-by-wire gearbox. The device comprises a selector lever which is movable between a drive gear position and a park position, and a locking device with a spring-loaded detent pin and a lock-in gate. An actuator device, that moves the selector lever, comprises a disengagement device. A detent pin and a lock-in gate can be brought, via a disengagement device, from a first relative position, in which the detent pin engages a shifting track of the lock-in gate, into another relative position, in which the detent pin disengages the shifting track. The operating device facilitates simple and safe actuator-induced return of the selector lever, into the park position, and offers the driver reliable optic and tactile feedback about the actual shift condition of the transmission.
    Type: Application
    Filed: March 10, 2008
    Publication date: March 25, 2010
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Wolfgang Kliemannel, Ludger Rake, Sascha Rosentreter, Harald Merklein, Andreas Giefer
  • Publication number: 20100024584
    Abstract: An actuating device for selecting shift positions of a shift-by-wire gearshift transmission. The actuating device comprises a selector lever that is movable between stable lever positions from at least one drive mode position to a parking lock position, a detent device with a spring-loaded detent element, a detent guide-plate and a separating device with an actuator-operated thrust wedge. The detent element and the detent guide-plate can be moved by the thrust wedge from a first position, in which the detent element engages in a shift track of the detent guide-plate, to another second position in which the detent element is disengaged from the shift track of the guide-plate. The actuating device enables automatic return of the selector lever to the parking lock position and thus provides the driver with correct visual and tactile feedback about the actual shift status of the transmission.
    Type: Application
    Filed: March 5, 2008
    Publication date: February 4, 2010
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Andreas Giefer, Jorg Meyer, Ludger Rake
  • Publication number: 20090321215
    Abstract: A parking brake device for motor transmissions, especially automatic transmissions has a parking brake pawl (2) with an actuating or adjusting device (3) for engaging and disengaging the pawl (2) as well as a holding device for securing the parking brake pawl (3) in the disengaged position. The holding device includes a toggle mechanism (6, 7, 8, 9) that can be brought from a first, stretched position, in which the parking brake pawl (2) is fixed in the disengaged position, into a second, bent position, in which the parking brake pawl (2) can be engaged. This presents a reduction of the design effort, an improvement of robustness and resistance to different ambient conditions with no auxiliary energy requirement for maintaining the securing action for the parking brake pawl and also minimal releasing forces for releasing the parking brake securing.
    Type: Application
    Filed: August 7, 2007
    Publication date: December 31, 2009
    Inventors: Andreas Giefer, Jörg Meyer, Ludger Rake
  • Publication number: 20090266193
    Abstract: An actuating device for motor vehicle transmissions, especially for automatic transmissions has a selector lever (1), a transmission structure for sensing and transmitting the shift commands from the actuating device to the motor vehicle transmission, as well as a hinge structure with a four-bar mechanism (2) in which the selector lever (1) is mounted in such a way that it can perform shifting motions. The actuating device presents a small space requirements for installation with good ergonomic properties, good force-displacement curve at the selector lever qualities, as good sensing and signal transmission aspects. Visual shift gates and gear shifting gates can also be embodied at actuating devices of very compact design.
    Type: Application
    Filed: August 7, 2007
    Publication date: October 29, 2009
    Inventors: Andreas Giefer, Ludger Rake, Jorg Meyer
  • Publication number: 20090014302
    Abstract: A push-button device (1) is provided for actuating a technical system (2), especially in a motor vehicle. The push-button device (1) comprises at least one push button (6) as well as a holding device (10). The push button (6) is arranged in the holding device (10) and can be moved between a neutral position and an actuation position. The push-button device (1) is characterized according to the present invention in that a flexible cable device (3) for signal transmission is arranged between the push button (6) and the technical system (2).
    Type: Application
    Filed: October 7, 2005
    Publication date: January 15, 2009
    Inventors: Jorg Meyer, Andreas Giefer, Wolfgang Kliemannel, Ludger Rake
  • Patent number: 6851538
    Abstract: A control unit for the gear or shift program selection of an automatic transmission of a motor vehicle is presented, which has a emergency release mechanism. With this a parking brake of the motor vehicle transmission can be released by an operating device that can be actuated by the driver. A housing (3) is provided and a selector lever (1), which can be brought into at least two end positions, in which control unit the operating device of the emergency release mechanism is an integral part of the control unit, and in which the operating device has a detachable stop element (7). The stop element (7) is secured in a mount (9) of the control unit by means of a coded release mechanism (15) and acts as a movement limitation for the release movement of the parking brake by the operating device of the emergency release mechanism in the non-actuated state.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: February 8, 2005
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Jörg Meyer, Ludger Rake
  • Patent number: 6688448
    Abstract: A device is provided for shifting a mechanical shifter between a first shifting state and at least one second shifting state, especially for engaging and disengaging a parking brake for an automatic transmission. An adjusting member (4) is coupled with the shifter for shifting between the shifting states. A control member (5) is provided that can be coupled with the adjusting member (4). A coupling device (5, 6, 7, 12) can be actuated by an electric signal By this coupling device (5, 6, 7, 12) the adjusting member (4) and the control member (5) can be coupled with one another. The coupling device (5, 6, 7, 12) is designed such that the adjusting member (4) and the control member (5) are uncoupled from one another in case of loss of the electric signal. A drive (8, 9, 10, 11) is coupled with the control member (5) for driving the control member (5).
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: February 10, 2004
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Andreas Giefer, Jörg Meyer, Reimund Börgerding, Ludger Rake
  • Publication number: 20030173181
    Abstract: A control unit for the gear or shift program selection of an automatic transmission of a motor vehicle is presented, which has a emergency release mechanism, by which a parking brake of the motor vehicle transmission can be released by means of an operating device that can be actuated by the driver, with a housing (3) and a selector lever (1), which can be brought into at least two end positions, in which [control unit] the operating device of the emergency release mechanism is an integral part of the control unit, and in which the operating device has a detachable stop element (7), which is secured in a mount (9) of the control unit by means of a coded release mechanism (15) and which acts as a movement limitation for the release movement of the parking brake by the operating device of the emergency release mechanism in the non-actuated state.
    Type: Application
    Filed: March 26, 2003
    Publication date: September 18, 2003
    Inventors: Jorg Meyer, Ludger Rake
  • Publication number: 20020148318
    Abstract: A device is provided for shifting a mechanical shifter between a first shifting state and at least one second shifting state, especially for engaging and disengaging a parking brake for an automatic transmission. An adjusting member (4) is coupled with the shifter for shifting between the shifting states. A control member (5) is provided that can be coupled with the adjusting member (4). A coupling device (5, 6, 7, 12) can be actuated by an electric signal. By this coupling device (5, 6, 7, 12) the adjusting member (4) and the control member (5) can be coupled with one another. The coupling device (5, 6, 7, 12) is designed such that the adjusting member (4) and the control member (5) are uncoupled from one another in case of loss of the electric signal. A drive (8, 9, 10, 11) is coupled with the control member (5) for driving the control member (5).
    Type: Application
    Filed: April 25, 2002
    Publication date: October 17, 2002
    Inventors: Andreas Giefer, Jorg Meyer, Reimund Borgerding, Ludger Rake