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: 20090301243
    Abstract: A device (1) for transmitting torque from a first shaft (2) to a second shaft (3) of a transmission device, in particular a counter shaft transmission. The device (1) has a first gear (5) supported on the first shaft (2) by a bearing device (4) and which, in an assembled state, engages a second gear (6) arranged on the second shaft (3). The first gear (5) can be shifted into an activated state in which the first gear is connected in a rotationally fixed manner to the first shaft (2). A supporting mechanism (18) is associated with the first gear (5), next to the bearing device (4), via which tilting moments present and acting on the first gear (5), at least in a connected state, are transmitted to and supported by the first shaft (2).
    Type: Application
    Filed: October 2, 2007
    Publication date: December 10, 2009
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Matthias Reisch, Mark Mohr, Ralf Dreibholz, Gerhard Gumpoltsberger
  • Publication number: 20090301248
    Abstract: A device for actuating a gearwheel of a transmission device. The gearwheel rotates on a shaft and can be shifted by way an engagement mechanism that includes at least one actuator that is arranged at least partially inside the shaft. The actuator can be actuated by a pressure medium to fix the gearwheel to the shaft. The actuation force required for engaging or disengaging the gearwheel can come from within the shaft. The actuator is a piston-cylinder unit which is either rotationally fixed to the shaft or rotationally fixed relative the shaft. When the actuator is rotationally fixed relative to the shaft, the active connection between the actuator and the gearwheel, which is to be shifted, includes a drive decoupling unit between the actuator and the shaft.
    Type: Application
    Filed: October 11, 2007
    Publication date: December 10, 2009
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Mark Mohr, Matthias Reisch
  • Publication number: 20090232673
    Abstract: A method and a device for controlling the oil supply of an automatic transmission (gearbox) and to a starting element. The method can guarantee a sufficient supply of oil to a hydraulic control unit of the automatic transmission and/or the starting element, in particular an oil-cooled friction clutch, both during the operation of the internal combustion engine (4) and when the latter is at a standstill with the aid of an oil pump (2) that can be mechanically driven by the internal combustion engine (4) and a second oil pump (3) that can be electrically driven. In addition, the cooling oil supply of the starting element is guaranteed by the provision of a low-pressure oil by way of the electrically driven oil pump (3), at least during the starting operation, the stream cooling the starting element (11).
    Type: Application
    Filed: March 8, 2006
    Publication date: September 17, 2009
    Applicant: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Ralf Dreibholz, Gerhard Gumpoltsberger
  • Publication number: 20090205454
    Abstract: A transmission device has at least two change-under-load shift elements with transmission capacities that are varied an actuation device. A method for operating a drive train including transmission and drive engine includes a step that when the transmission is shifted, one of the shift elements, which is engaged in the force flow, is disengaged by the actuation device and the other shift element, which is engaged, is disengaged. The actuation device includes an actuator which applies an actuating force to actuate the shift elements and a coupling device by which the actuator communicates with the shift elements to actuate them, such that an actuating force of the actuator, which is actuating the shift element to be disengaged, can be reduced, while an actuating force of the actuator, which is actuating the shift element to be engaged can simultaneously be increased.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 20, 2009
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Ralf DREIBHOLZ, Matthias REISCH
  • Patent number: 7485061
    Abstract: A drive train (1) of a hybrid vehicle having one internal combustion engine and one transmission (3), between the internal combustion engine and the transmission (3), at least one electric machine (7) with one stator (8) and one rotor (9) is situated wherein the rotor (9) can be connected by at least one friction clutch with a crankshaft (4) of the internal combustion engine and/or with an input shaft (16) of the transmission (3) and/or with a third shaft in which the rotor (9) is firmly connected with a rotor carrier (24) which supports component parts of the clutch on its radial inner side. The drive train is to be developed so that at least one wet-running clutch, actuatable by pressure medium, is situated so that it is very compactly designed and allows an active cooling of both the clutch discs and of the rotor carrier.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: February 3, 2009
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Andreas Männer
  • Patent number: 7479720
    Abstract: A seal of an electric machine installed within a motor vehicle drive mechanism with of one of a wet-running oil-cooled disk gearshift element, a multiple disk clutch and a multiple disk brake being accommodated within a free space of a rotor of the electric machine. An oil free annular gap (3) is formed between the rotor (2) and the stator (1) of the electric machine and the annular gap (3) has a seal (9) which, at a high rate of rotation by the rotor (2) and depending on the type of gap seal, seals without touching.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: January 20, 2009
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Maik Würthner, Axel Heitmann, Stefan Kilian
  • Patent number: 7448975
    Abstract: A transmission device (3) for a vehicle with an electric machine (26) that is arranged in a housing (11) is described. The electric machine (26) can be placed in active connection with a rotating component (13, 28) that can be guided in the power flow of the transmission device such that a level of torque that can be generated by the electric machine (26) can be transmitted to the component (13, 28). At least one electric component (45; 45Y) that comprises power electronics for the electric machine (26) is arranged in a cross-sectional area inside the housing (11) that is perpendicular to the longitudinal axis of the electric machine (26) and is located directly adjacent to the electric machine (26).
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: November 11, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Martin Grumbach, Ralf Dreibholz, Wolfgang Schön, Jürgen Kett
  • Publication number: 20080271554
    Abstract: A device for connecting, in a rotationally fixed manner, a shaft to at least one component which is rotationally supported on the shaft, such as a gear wheel of a gear in a transmission. The device includes an actuating element that is rotationally fixed, but axially slides on the shaft, such that when the element is actuated by an actor, the element actively, frictionally communicates with the component to at least approximately equalize a rotational speed difference, between the component and the shaft. The actuating element can be actuated by the actor with a force to frictionally connect the component to the shaft in a rotationally fixed manner. The device further includes a holding device, which retains the actuating element in a shift condition essentially equivalent to the rotationally fixed condition of the component without further actuation of the actor.
    Type: Application
    Filed: October 17, 2007
    Publication date: November 6, 2008
    Applicant: ZF Friedrichshafen AG
    Inventors: Mark MOHR, Matthias Reisch
  • Patent number: 7445573
    Abstract: A transmission device (3) of a vehicle for distributing a driving torque of a transmission input shaft (13) to at least two transverse vehicle shafts (4; 4X; 4Y; 4Z; 5). Between the transmission input shaft (13) and a transmission output shaft (15) gear elements (16 to 25) are disposed in a housing (11) for the purpose of implementing different gear ratios. One of the vehicle axles (4; 4X; 4Y; 4Z) extends through an inner space (10) of the housing (11). In a cross-sectional area disposed perpendicular to the longitudinal axis of the transmission device (3), in which area the transverse vehicle shaft (4; 4X; 4Y; 4Z) that is guided through the housing (11) is disposed, at least part of an electrical device (45, 46), which is mounted to the housing side, and/or at least part of a temperature control unit (47), which is mounted to the housing side, are provided.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: November 4, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Grumbach, Matthias Reisch, Ralf Dreibholz
  • Publication number: 20080051249
    Abstract: A hybrid drive unit for installation between an internal combustion engine and a vehicle transmission in a motor vehicle. The hybrid drive unit has an electric machine operable, alternatively, as a motor and a generator and having at least one stator and one rotor, the rotor having bearings on a transmission side and on an internal combustion engine side. One set of bearings is provided on the transmission side and, on the internal combustion engine side, the hybrid drive unit is supported on the crankshaft bearings of the internal combustion engine. A non-rotary connection can be established, for example, by means of a flexplate or a torsional vibration damper, between the rotor of the electric machine and the crankshaft of the internal combustion engine. Before the rotor is connected to the crankshaft, the rotor is supported on bearings on the transmission side.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 28, 2008
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Andreas Maenner, Matthias Reisch
  • Patent number: 7252608
    Abstract: An automatic transmission (1) is described, having a variator (5) that comprises at least two conical disk sets (2, 3), such that a wrap-around element (4) is guided via the conical disk sets (2, 3) for torque transmission with continuous variation of the transmission ratio. In this, the arrangement of the rotation axes of two conical disks of at least one conical disk set relative to one another can be varied.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: August 7, 2007
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Olrik Weinmann, Bernhard Sich, Michael Ebenhoch
  • Patent number: 7232396
    Abstract: A cone ring transmission, especially for motor vehicles with a front, transverse drive is proposed, having two cones in opposed alignment to one another, rotating on two shafts, the cones being, namely a primary cone and a secondary cone, with an adjustment ring engaging both cones therebetween, the ring contacting one cone and circumferentially encompassing the other cone, with a mechanism to provide ratio adjustment for the adjustment ring, having an arrangement which binds the output drive shaft, i.e. the shaft of the secondary cone with a differential of the motor vehicle and with a start-up element, which binds one of the cones with the motor of the motor vehicle, whereby the torque from the output drive shaft is transmitted to a differential by way of a gear train.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: June 19, 2007
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Christian Müller
  • Publication number: 20070135258
    Abstract: A device (1) is described for controlling and/or regulating a hydraulically activatable shifting element. The shifting element (2) is configured with a piston-cylinder unit (3) that can be acted upon by a hydraulic operating pressure (p) and can be arranged in an installation space that is connected to an oil sump of the gearing mechanism device. In addition, the device (1) is provided with an electric motor (5) that can be actuated by a control and/or regulator unit (4), and which is provided with a drive-transformer device (6) that has a functional connection to the electric motor (5), by way of which the rotational drive of the electric motor (5) can be transformed into the hydraulic operating pressure (p) for the shifting element (2).
    Type: Application
    Filed: December 8, 2006
    Publication date: June 14, 2007
    Applicant: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Martin Grumbach, Hans-Jorg Domian
  • Publication number: 20070049445
    Abstract: A drive train (1) of a hybrid vehicle having one internal combustion engine and one transmission (3), between the internal combustion engine and the transmission (3), at least one electric machine (7) with one stator (8) and one rotor (9) is situated wherein the rotor (9) can be connected by at least one friction clutch with a crankshaft (4) of the internal combustion engine and/or with an input shaft (16) of the transmission (3) and/or with a third shaft in which the rotor (9) is firmly connected with a rotor carrier (24) which supports component parts of the clutch on its radial inner side. The drive train is to be developed so that at least one wet-running clutch, actuatable by pressure medium, is situated so that it is very compactly designed and allows an active cooling of both the clutch discs and of the rotor carrier.
    Type: Application
    Filed: August 28, 2006
    Publication date: March 1, 2007
    Inventors: Matthias Reisch, Andreas Manner
  • Publication number: 20070049444
    Abstract: An automatic gearshift transmission with a drive input shaft and a drive output, a mechanical gearshift with first and second planetary gearsets, the first planetary gearset being a single planetary gearset downstream from which is connected a double planetary gearset, with several shift elements, including clutches and brakes and with an electric machine provided as a starter and/or generator and/or for the at least partial electric operation of a vehicle, such that the electric machine can be connected by way of a fourth clutch to the combustion engine and by way of a fifth clutch to a first shaft of the first planetary gearset. The combustion engine can be connected by way of the fourth and fifth clutches to the annular gear of the first planetary gearset and/or the electric machine can be connected by way of the fifth clutch to the annular gear of the first planetary gearset.
    Type: Application
    Filed: August 28, 2006
    Publication date: March 1, 2007
    Inventors: Gerhard Gumpoltsberger, Matthias Reisch, Stefan Kilian
  • Publication number: 20070007830
    Abstract: An electric machine for a transmission of a motor vehicle comprising one stator plate set (4) is connected to the transmission housing (5) and the electric machine is cooled by the transmission housing (5) and/or the transmission lubricant.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 11, 2007
    Inventors: Matthias Reisch, Wolfgang Schon
  • Publication number: 20060244325
    Abstract: A relatively abrasion-free seal for an electric motor that is inserted within the motor vehicle drive mechanism (6) to an electric motor rotor located within the free construction space (4) of the wet-running electric machine rotor (2) or oil-cooled gearshift element of a multiple disk clutch (5) with which the very highest possible degree of an oil free annular gap (3) between the rotor (2) and the stator (1) of an electric machine is provided essentially in that the face side of the annular gap (3) is designed to have a seal (9) which, at a high rate of revolutions by the rotor (2) and depending on the type of gap seal, has been built to seal without touching.
    Type: Application
    Filed: May 18, 2004
    Publication date: November 2, 2006
    Inventors: Matthias Reisch, Maik Würthner, Axel Heitmann, Stefan Kilian
  • Publication number: 20060201277
    Abstract: A transmission device (3) for a vehicle with an electric machine (26) that is arranged in a housing (11) is described. The electric machine (26) can be placed in active connection with a rotating component (13, 28) that can be guided in the power flow of the transmission device such that a level of torque that can be generated by the electric machine (26) can be transmitted to the component (13, 28). At least one electric component (45; 45Y) that comprises power electronics for the electric machine (26) is arranged in a cross-sectional area inside the housing (11) that is perpendicular to the longitudinal axis of the electric machine (26) and is located directly adjacent to the electric machine (26).
    Type: Application
    Filed: March 8, 2006
    Publication date: September 14, 2006
    Inventors: Matthias Reisch, Martin Grumbach, Ralf Dreibholz, Wolfgang Schon, Jurgen Kett
  • Publication number: 20060205552
    Abstract: A transmission device (3) of a vehicle for distributing a driving torque of a transmission input shaft (13) to at least two transverse vehicle shafts (4; 4X; 4Y; 4Z; 5). Between the transmission input shaft (13) and a transmission output shaft (15) gear elements (16 to 25) are disposed in a housing (11) for the purpose of implementing different gear ratios. One of the vehicle axles (4; 4X; 4Y; 4Z) extends through an inner space (10) of the housing (11). In a cross-sectional area disposed perpendicular to the longitudinal axis of the transmission device (3), in which area the transverse vehicle shaft (4; 4X; 4Y; 4Z) that is guided through the housing (11) is disposed, at least part of an electrical device (45, 46), which is mounted to the housing side, and/or at least part of a temperature control unit (47), which is mounted to the housing side, are provided.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 14, 2006
    Inventors: Martin Grumbach, Matthias Reisch, Ralf Dreibholz
  • Publication number: 20060178239
    Abstract: An automatic transmission (1) is described, having a variator (5) that comprises at least two conical disk sets (2, 3), such that a wrap-around element (4) is guided via the conical disk sets (2, 3) for torque transmission with continuous variation of the transmission ratio. In this, the arrangement of the rotation axes of two conical disks of at least one conical disk set relative to one another can be varied.
    Type: Application
    Filed: May 16, 2003
    Publication date: August 10, 2006
    Inventors: Matthias Reisch, Olrik Weinmann, Bernhard Sich, Michael Ebenhoch