Patents by Inventor Bernhard Sich
Bernhard Sich 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: 10641373Abstract: A variator unit is fixed to a rotationally fixed component and has a secondary side rotationally fixed to an input shaft and a primary side rotationally fixed to a first element of a first planetary gear set. The input shaft is rotationally fixable via a second shift element to a second element of a second planetary gear set, which is fixable to the rotationally fixed component via a first shift element, and is rotationally fixed to a first element of a third planetary gear set. A second element of the first planetary gear set is fixed to the rotationally fixed component. A first element of the second planetary gear set is rotationally fixed to a third element of the third planetary gear set. A third element of the first planetary gear set is rotationally fixed to a third element of the second planetary gear set.Type: GrantFiled: October 25, 2018Date of Patent: May 5, 2020Assignee: ZF FRIEDRICHSHAFEN AGInventors: Stefan Beck, Viktor Warth, Michael Wechs, Bernhard Sich, Fabio Frank, Jens Moraw, Gerhard Niederbrucker, Lara Ruth Turner
-
Publication number: 20190120352Abstract: A variator unit is fixed to a rotationally fixed component and has a secondary side rotationally fixed to an input shaft and a primary side rotationally fixed to a first element of a first planetary gear set. The input shaft is rotationally fixable via a second shift element to a second element of a second planetary gear set, which is fixable to the rotationally fixed component via a first shift element, and is rotationally fixed to a first element of a third planetary gear set. A second element of the first planetary gear set is fixed to the rotationally fixed component. A first element of the second planetary gear set is rotationally fixed to a third element of the third planetary gear set. A third element of the first planetary gear set is rotationally fixed to a third element of the second planetary gear set.Type: ApplicationFiled: October 25, 2018Publication date: April 25, 2019Inventors: Stefan Beck, Viktor Warth, Michael Wechs, Bernhard Sich, Fabio Frank, Jens Moraw, Gerhard Niederbrucker, Lara Ruth Turner
-
Patent number: 9810300Abstract: A power-split, continuously variable transmission includes a summing planetary transmission, at least one additional planetary gear set and a variator, which are in operative connection with each other a plurality of shafts, the shafts of the plurality of shafts are couplable to each other with a plurality of shift elements in order to provide at least three transmission ratio ranges. The variator is a mechanical friction wheel variator with at least three shafts. The summing planetary transmission, the at least one additional planetary gear and the variator are arranged coaxial to one another. In one of the transmission ratio ranges of the at least three transmission ratio ranges, a total power is guidable between a transmission input shaft and a transmission output shaft by the variator. A friction wheel of the variator is approximately cone-shaped, at least in sections.Type: GrantFiled: October 14, 2014Date of Patent: November 7, 2017Assignee: ZF FRIEDRICHSHAFEN AGInventors: Viktor Warth, Matthias Reisch, Bernhard Sich
-
Publication number: 20160290459Abstract: 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: ApplicationFiled: October 14, 2014Publication date: October 6, 2016Inventors: Viktor Warth, Matthias Reisch, Bernhard Sich
-
Patent number: 9182013Abstract: 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: GrantFiled: September 19, 2011Date of Patent: November 10, 2015Assignee: ZF Friedrichshafen AGInventors: Gerhard Gumpoltsberger, Bernhard Sich, Matthias Reisch, Manuel Goetz, Mark Mohr, Ralf Dreibholz, Peter Ziemer, Gert Bauknecht
-
Patent number: 8663052Abstract: An infinitely variable transmission device (4) for a vehicle drivetrain (1) which includes a variator (8) and a gearshift transmission device (9), which produce gear ratios in a plurality of ratio ranges with continuous variation. The device has a planetary transmission device (7) in active connection with a transmission input (12), in an area of a first shaft (11), with the gearshift transmission device (9), in an area of a second shaft (14), and with the variator (8), in an area of a third shaft (16). The torque to be transmitted by the transmission device (4) passes, via at least two power paths, between the transmission input (12) and a transmission output (10). The variator (8) is arranged in one of the two power paths and the gearshift transmission device (9) is arranged between the variator (8) and the transmission output (10).Type: GrantFiled: March 11, 2009Date of Patent: March 4, 2014Assignee: ZF Friedrichshafen AGInventor: Bernhard Sich
-
Publication number: 20130196814Abstract: 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: ApplicationFiled: September 19, 2011Publication date: August 1, 2013Inventors: Gerhard Gumpoltsberger, Bernhard Sich, Matthias Reisch, Manuel Goetz, Mark Mohr, Ralf Dreibholz, Peter Ziemer, Gert Bauknecht
-
Publication number: 20120198963Abstract: A drive-train of a vehicle having an internal combustion engine and a continuously variable transmission for driving under internal combustion engine power and having at least one electric machine for driving under electric power. The electric machine can be coupled, on the drive output side, in such manner that electric driving can take place decoupled from the continuously variable transmission.Type: ApplicationFiled: October 19, 2010Publication date: August 9, 2012Applicant: ZF FRIEDRICHSHAFEN AGInventors: Uwe Griesmeier, Bernhard Sich
-
Patent number: 7905787Abstract: A drive system for a motor vehicle comprises a drive unit with a drive shaft and a torque-transmitting assembly, which is to be connected on the drive side to the drive shaft for rotation in common around an axis of rotation (A) and which is to be connected on the takeoff side to a gearbox. The drive-side connection is accomplished by means of an axial plug-in connection arrangement, and the torque-transmitting assembly is supported in at least one axial direction on the gearbox.Type: GrantFiled: January 23, 2008Date of Patent: March 15, 2011Assignee: ZF Friedrichshafen AGInventors: Peter Frey, Michael Kühner, Alexander Markow, Michael Heuler, Martin Grumbach, Bernhard Sich, Robert Reiser, Peter Hammer
-
Publication number: 20110021303Abstract: An infinitely variable transmission device (4) for a vehicle drivetrain (1) which includes a variator (8) and a gearshift transmission device (9), which produce gear ratios in a plurality of ratio ranges with continuous variation. The device has a planetary transmission device (7) in active connection with a transmission input (12), in an area of a first shaft (11), with the gearshift transmission device (9), in an area of a second shaft (14), and with the variator (8), in an area of a third shaft (16). The torque to be transmitted by the transmission device (4) passes, via at least two power paths, between the transmission input (12) and a transmission output (10). The variator (8) is arranged in one of the two power paths and the gearshift transmission device (9) is arranged between the variator (8) and the transmission output (10).Type: ApplicationFiled: March 11, 2009Publication date: January 27, 2011Applicant: ZF FRIEDRICHSHAFEN AGInventor: Bernhard Sich
-
Publication number: 20080179155Abstract: A drive system for a motor vehicle comprises a drive unit with a drive shaft and a torque-transmitting assembly, which is to be connected on the drive side to the drive shaft for rotation in common around an axis of rotation (A) and which is to be connected on the takeoff side to a gearbox. The drive-side connection is accomplished by means of an axial plug-in connection arrangement, and the torque-transmitting assembly is supported in at least one axial direction on the gearbox.Type: ApplicationFiled: January 23, 2008Publication date: July 31, 2008Applicant: ZF Friedrichshafen AGInventors: Peter Frey, Michael Kuhner, Alexander Markow, Michael Heuler, Martin Grumbach, Bernhard Sich, Robert Reiser, Peter Hammer
-
Patent number: 7252608Abstract: 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: GrantFiled: May 16, 2003Date of Patent: August 7, 2007Assignee: ZF Friedrichshafen AGInventors: Matthias Reisch, Olrik Weinmann, Bernhard Sich, Michael Ebenhoch
-
Publication number: 20060178239Abstract: 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: ApplicationFiled: May 16, 2003Publication date: August 10, 2006Inventors: Matthias Reisch, Olrik Weinmann, Bernhard Sich, Michael Ebenhoch
-
Patent number: 6949045Abstract: A power distributed 2-range transmission comprising one frictional wheel variator (1), one planetary gear (2) arranged coaxially to the frictional wheel variator (1), detachably connectable therewith via one shifting element (K2) and comprising two shifting elements (Kr, K1) and one lateral shaft (9) which connects the frictional wheel variator (1) with the planetary gear (2), the planetary gear (2) containing two minus planetary gear sets (3, 4).Type: GrantFiled: October 6, 2003Date of Patent: September 27, 2005Assignee: ZF Friedrichshafen AGInventors: Jürgen Wafzig, Bernhard Sich, Gerhard Gumpoltsberger
-
Patent number: 6935988Abstract: An infinitely variable toroidal drive with several drive units wherein each drive unit has an input disc with a toroidal inner surface disposed coaxially in relation to the input shaft and an output disc with a toroidal inner surface disposed coaxially in relation to the input shaft and several friction wheels which are pivotably situated between each pair of input disc and output discs and mounted on a carrier, respectively. The infinitely variable toroidal drive has a device for support of the reaction forces appearing on the friction wheels due to the pressure of the discs, simultaneously synchronizing the pivoting angle of the carriers. The device consists of respective traction elements; one being provided on both the upper ends and the lower ends of the two carriers, and encircling the ends of the carriers and respectively having the shape of an 8.Type: GrantFiled: July 28, 2001Date of Patent: August 30, 2005Assignee: ZF Friedrichshafen AGInventors: Bernhard Sich, Axel Matheis
-
Publication number: 20050176534Abstract: An automatic transmission (1) with a variator (5) and with at least two conical disk sets (2, 3) is described, such that a wrap-around element (4) is guided over the conical disk sets (2, 3) for torque transmission with continuously variable transmission ratio. In this, the arrangement of the rotation axes of two conical disks (3A, 3B) of a conical disk set (3) relative to one another can be changed, in that at least a first conical disk (3B) can be tilted relative to a second conical disk (3A) of the conical disk set (3).Type: ApplicationFiled: May 16, 2003Publication date: August 11, 2005Inventors: Matthias Reisch, Bernhard Sich, Holger Fahl
-
Publication number: 20050075209Abstract: A power distributed 2-range transmission comprising one frictional wheel variator (1), one planetary gear (2) arranged coaxially to the frictional wheel variator (1), detachably connectable therewith via one shifting element (K2) and comprising two shifting elements (Kr, K1) and one lateral shaft (9) which connects the frictional wheel variator (1) with the planetary gear (2), the planetary gear (2) containing two minus planetary gear sets (3, 4).Type: ApplicationFiled: October 6, 2003Publication date: April 7, 2005Inventors: Jurgen Wafzig, Bernhard Sich, Gerhard Gumpoltsberger
-
Patent number: 6705416Abstract: A hybrid drive for a motor vehicle which possesses, in a gear train (1), a first electrical machine (4) located between an internal combustion motor (2) and a multi-gear vehicle transmission (3). The hybrid drive further possesses a second electrical machine (6) permanently connected with an input shaft (5) of the transmission. First and second clutches (7, 8), respectively, are placed between the first and second electrical machines (4, 6) and the internal combustion motor (2) and the first and second electrical machines (4, 6) can be respectively driven as either a motor or a generator.Type: GrantFiled: October 17, 2001Date of Patent: March 16, 2004Assignee: ZF Friedrichshafen KGInventors: Hans Glonner, Bernhard Sich, Gerhard Gumpoltsberger, Hans-Jörg Domian, Ralf Dreibholz, Markus Kaindl, Jörg Michael
-
Patent number: 6689013Abstract: The continuously variable friction gear transmission has one housing and one variator which is inserted therein and which is mounted on a power frame. In order to provide this variator in the form of an operationally capable autarchic unit, the support pistons for the trunnions are integrated in the power frame.Type: GrantFiled: June 18, 2002Date of Patent: February 10, 2004Assignee: ZF Friedrichshafen AGInventors: Jürgen Wafzig, Bernhard Sich
-
Publication number: 20030158013Abstract: The invention relates to a stepless friction drive (1) in which friction wheels (2) are mounted. Said friction drive is provided with a system that allows a compensatory displacement of the corresponding friction wheel (2) when the input and output wheels are elastically deformed. Said system is mounted between the lower end of every support (1) and the hydraulic piston (6). The compensation system comprises an upper bearing shell (3), a lower bearing shell (5) and balls (4) that are maintained in a defined arrangement by means of a cage (9).Type: ApplicationFiled: January 3, 2003Publication date: August 21, 2003Inventors: Bernhard Sich, Axel Matheis