Patents by Inventor Matthias Reisch

Matthias Reisch 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: 20160341258
    Abstract: A frictional shift element for a transmission of a motor vehicle, with at least one first frictional element (1) allocated to a first carrier (2) and with at least one second frictional element (3) allocated to a second carrier (4) as a friction partner with overlapping frictional surfaces, is proposed, which can be brought into contact for the transfer of torque, whereas the first or the second frictional element (1, 3) features a friction surface (7) that is designed to be approximately annular, and whereas the other frictional element (1, 3), as a corresponding frictional surface, features at least one frictional surface (5) protruding radially in the overlap area.
    Type: Application
    Filed: December 15, 2014
    Publication date: November 24, 2016
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Matthias Reisch, Peter Ziemer, Stefan Beck, Christian Sibla
  • Patent number: 9470329
    Abstract: A device is provided for controlling at least one cooling oil flow and/or lubricating oil flow by means of at least one valve (17) for at least one cooling point and/or lubrication point (3, 4) connected to a shaft (1). The valve (17) is connected in an electrically controllable and torque-proof manner to a cooling point and/or lubrication point (3, 4). The electrical energy is able to be supplied for actuating the valve (17) without contact.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 18, 2016
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Ralf Dreibholz
  • Publication number: 20160290459
    Abstract: A power-split, continuously variable transmission device (1) with a summing planetary transmission (9), with at least one additional planetary gear set (10) and with one variator (8), which are in operative connection with each other in the area of shafts (11, 12, 13, 14) and can be coupled to each other by means of shift elements (S1 bis S3) for the presentation of at least three transmission ratio ranges in the area of additional shafts (15, 16, 11, 18, 14), is described. A transmission ratio is continuously variable within the transmission ratio ranges by means of the variator (8). The variator (8) is formed as a mechanical friction wheel variator with at least three shafts (11, 15, 17). The summing planetary transmission (9), the at least one additional planetary gear (10) and the variator (8) are arranged in a manner coaxial to each other.
    Type: Application
    Filed: October 14, 2014
    Publication date: October 6, 2016
    Inventors: Viktor Warth, Matthias Reisch, Bernhard Sich
  • Publication number: 20160017968
    Abstract: A drive-train for a vehicle with at least one electric drive, which can be coupled via a driveshaft (2) to at least a first transmission ratio stage (i1) and a second transmission ratio stage (i2). At least one shifting mechanism is provided for engaging the transmission ratio stages (i1, i2). To carry out powershifts, the shifting mechanism includes at least one interlocking shifting element (5) and at least one frictional shifting element (6, 6A). Each of the transmission ratio stages (i1, i2) can be engaged by the interlocking shifting element (5) and at least one of the transmission ratio stages (i2) can be engaged both by the interlocking shifting element (5) and by the frictional shifting element (6). Methods for carrying out a powershift, between a frictional shifting element (6, 6A) and an interlocking shifting element (5) in the drive-train, are also disclosed.
    Type: Application
    Filed: February 12, 2014
    Publication date: January 21, 2016
    Inventors: Johannes KALTENBACH, Matthias REISCH, Ulrich KEHR, Michael PREUß, Kai BORNTRÄGER
  • Patent number: 9239109
    Abstract: The invention relates to an arrangement for shifting at least one freewheel (1, 2, 3) on an associated shaft of a gear mechanism, comprising at least one shifting device which comprises an actuation device and a non-positive and/or positive shifting device. Said shifting device can be axially displaced by the actuation device that is arranged at least partially in the shaft and the shifting device is arranged coaxially to the shaft. According to the invention, an axial extension can be disposed between the actuation device and the shifting device.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: January 19, 2016
    Assignee: ZF Friedrichshafen AG
    Inventor: Matthias Reisch
  • Patent number: 9217506
    Abstract: An actuating device is provided for actuating at least one shifting element shiftable through a shifting device, whereas the shifting device features a pressure space with a supply for a pressurized medium, along with a shut-off valve. It is proposed that the shut-off valve is connected in an electrically controllable and torque-proof manner to at least one shifting element, and that the electrical energy for the actuation of the shut-off valve is able to be supplied without contact.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 22, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Ralf Dreibholz
  • Patent number: 9182013
    Abstract: A power-shiftable transmission, in particular an automatic transmission for a vehicle, which comprises a plurality of frictional shifting elements and at least one interlocking shifting element (A, B, C, D, E) and a plurality of gearwheels which can be engaged in a power flow by the shifting elements (A, B, C, D, E). In order to engage a gear step, at least two associated shifting elements (A, B, C, D, E) are engaged and at least one interlocking shifting element (B), as a shifting element (B) to be engaged, is associated with a gear step to be engaged with a supporting gear.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: November 10, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerhard Gumpoltsberger, Bernhard Sich, Matthias Reisch, Manuel Goetz, Mark Mohr, Ralf Dreibholz, Peter Ziemer, Gert Bauknecht
  • Patent number: 8960033
    Abstract: A hybrid drive of a motor vehicle having an automated manual transmission with two coaxial input shafts and a common output shaft. The input shafts are respectively driven by an engine and an electric machine and can couple the output shaft via respective groups of gearwheel sets. Each gearwheel set comprises a gear fixed to the associated input shaft and an idler gear supported by respective countershafts. At least two idler gears disposed on one of the two countershafts of two gearwheel sets, within the transmission, assigned to two different input shafts, can be coupled via a winding-path shift element, and the two output constants are disposed in a common radial plane by using a common output gear disposed on the output shaft.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: February 24, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Johannes Kaltenbach, Matthias Reisch
  • Patent number: 8936528
    Abstract: A transmission, preferably for driving a motor vehicle, includes a multi-gear main transmission and a range group, that is connected downstream from the main transmission and comprises an input shaft and an epicyclic gear system. The epicyclic gear system comprises elements in the form at least of a central gearwheel and a planetary carrier. Furthermore, the transmission comprises a first connection for driving one of the elements of the epicyclic gear system by way of the input shaft of the range group and a variator, as well as a second connection that can be engaged with the first connection for driving a further element of the elements of the epicyclic gear system. When the second connection is engaged, the input shaft of the range group drives the variator and a drive output of the variator drives the further element of the epicyclic gear system.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: January 20, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Bernard Hunold
  • Patent number: 8850914
    Abstract: The invention relates to a dual clutch gear mechanism with a countershaft design for a vehicle with central synchronisation, in which a braking device is provided for slowing down each partial gear mechanism and a band brake (1,2) is provided as a braking device.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 7, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Gerhard Gumpoltsberger, Eckardt Lübke
  • Patent number: 8851260
    Abstract: The invention relates to a positively engaging shifting element which can be hydraulically or pneumatically actuated, comprising a hydraulically or pneumatically actuatable piston (I) having a piston compartment (2) containing a hydraulic medium or pressure medium, a jaw (3) having a dog-type gearing (4) and a mating jaw (5) with which the dog-type gearing (4) meshes when engaged. The engaging speed of the jaw (3) can be increased by decoupling the jaw (3) from the hydraulic or pneumatic volume flow when the jaws (3) and (5) are in a tooth butt position in relation to each other and by pretensioning the jaw (3) by means of a mechanical device (6) that is actively connected to the piston (I). The gap between the jaws, i.e. the window into which the jaw (3) can be engaged is maintained as narrow as possible in order for a tooth butt position of the jaws (3) and (5) in relation to each other being highly probable when the shift element is applied.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: October 7, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Ralf Dreibholz, Gerhard Gumpoltsberger, Mark Mohr, Manuel Götz
  • Publication number: 20140264112
    Abstract: The invention relates to a device for controlling at least one cooling oil flow and/or lubricating oil flow by means of at least one valve (17) for at least one cooling point and/or lubrication point (3, 4) connected to a shaft (1). It is proposed that the valve (17) is connected in an electrically controllable and torque-proof manner to a cooling point and/or lubrication point (3, 4), and that the electrical energy is able to be supplied for actuating the valve (17) without contact.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 18, 2014
    Applicant: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Ralf Dreibholz
  • Patent number: 8826761
    Abstract: A shift element comprising at least three shift positions for shifting two gear transmission ratios in which in a first end position, which corresponds to a first shift position, the first gear transmission ratio is engaged and in a second end position, which corresponds to a second shift position, the second gear transmission ratio is engaged, while in the central position, which corresponds to a third shift position, both gear transmission ratios are engaged.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: September 9, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerhard Gumpoltsberger, Manuel Goetz, Matthias Reisch
  • Patent number: 8826759
    Abstract: An actuating apparatus for actuating a shifting mechanism in a transmission to shift a gear wheel on a hollow shaft with an actuator module that is at least partially positioned within the hollow shaft and which comprises an actuator which can be connected with a coupling element of the shift mechanism which radially, inwardly extends into the inner diameter of the hollow shaft. The enclosure of the actuator module has at least an axially extending assembly passageway which guides the coupling element, during axial insertion of the actuator module into the hollow shaft. A method for the assembly and disassembly of an actuator module, with at least one actuator of an actuating apparatus for inside actuation of a shift mechanism on the hollow shaft. The actuator module is axially inserted into the hollow shaft and rotated via an assembly guide.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: September 9, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Gerhard Gumpoltsberger
  • Publication number: 20140239737
    Abstract: The invention relates to an electronic control device (28) for controlling at least one rotatably arranged actuator, comprising electronic components, such as a device (30) for the contact-free reception of electrical energy and the contact-free reception of signals, a device (27a) for generating magnetic fields and a common housing (39) that encloses the electronic components (27a, 30) and assimilates them, whereas the control device (28) is rotatable and designed for attaching on or into a component rotating around a rotational axis (a).
    Type: Application
    Filed: September 13, 2012
    Publication date: August 28, 2014
    Inventors: Matthias Reisch, Ralf Dreibholz
  • Publication number: 20140230591
    Abstract: The invention relates to an actuating device for actuating at least one shifting element (3, 4, 5) shiftable through a shifting device (6, 7, 8), whereas the shifting device (6, 7, 8) features a pressure space (6a, 7a, 8a) with a supply (26) for a pressurized medium, along with a shut-off valve (17). It is proposed that the shut-off valve (17) is connected in an electrically controllable and torque-proof manner to at least one shifting element (3, 4, 5), and that the electrical energy for the actuation of the shut-off valve (17) is able to be supplied without contact.
    Type: Application
    Filed: September 13, 2012
    Publication date: August 21, 2014
    Inventors: Matthias Reisch, Ralf Dreibholz
  • Patent number: 8794415
    Abstract: The invention relates to a positively engaging shifting element which can be hydraulically or pneumatically actuated, comprising a hydraulically or pneumatically actuatable piston (I) having a piston compartment (2) containing a hydraulic medium or pressure medium, a pressure medium supply (6) for the piston (I), a jaw (3) and a mating jaw (4) with which the jaw (3) meshes when engaged. The engaging speed of the jaw (3) can be increased by decoupling the jaw (3) from the hydraulic or pneumatic volume flow when the jaws (3) and (4) are in a tooth butt position in relation to each other and by pretensioning the jaw (3) by means of a hydraulic or pneumatic pressure reservoir (7) that is actively connected to the piston (I) and that is connected to the pressure medium supply (6). The gap between the jaws, i.e.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: August 5, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Ralf Dreibholz, Gerhard Gumpoltsberger, Peter Ziemer, Mark Mohr, Manuel Götz
  • Publication number: 20140196556
    Abstract: A parallel shift transmission which comprises split and range groups, each of which is divided into two parallel transmission branches. One branch can be actuated by a load shift element to transfer rotation of a drive shaft, via a transmission ratio of the split group, and then to a countershaft of the associated branch. Subsequently rotation can be converted, via a range ratio of the range group, into rotation of an output drive shaft. The gear stages are alternately divided between the branches in the order of associated transmission ratios, while each of the range ratios is achieved by shifting one of the group stages of the range group. To drive a power take-off via the transmission, the load shift elements are individual clutches, each of which is arranged in the associated branch between an output-side counter shaft of the split group and a drive-side counter shaft of the range group.
    Type: Application
    Filed: March 20, 2012
    Publication date: July 17, 2014
    Applicant: ZF Friedrichshafen AG
    Inventors: Stefan Beck, Martin Fellmann, Matthias Reisch
  • Patent number: 8733195
    Abstract: An actuating assembly for actuating synchronizing elements of a centrally synchronized dual-clutch transmission having at least a first part-transmission (6) and a second part-transmission (7) such that at least one synchronizing element is associated with each of the first and the second part-transmission (6, 7). A common actuator (1) is provided for actuating at least the synchronizing elements of the two part-transmissions.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: May 27, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Ralf Dreibholz, Eckhardt Luebke, Matthias Reisch, Juergen Wafzig
  • Patent number: RE46242
    Abstract: A device (4) for actuating a component mounted to rotate on a shaft (3), preferably a gearwheel (3A to 3D) made as a loose wheel of a transmission device (1). The component can be shifted by an engaging device (4A, 4B) that includes at least one electric actuator (5, 17) to an engaged condition in which the component is connected in a rotationally fixed manner to the shaft (3), and such that the component can be acted upon with the actuation force needed for its engagement or disengagement from inside the shaft (3) outwardly. The electric actuator (5, 17) is at least partially arranged inside the shaft (3).
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: December 20, 2016
    Assignee: ZF Friedrichshafen AG
    Inventors: Mark Mohr, Matthias Reisch, Ralf Dreibholz