Patents by Inventor Peter Ziemer
Peter Ziemer 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).
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Patent number: 8696507Abstract: A transmission comprises an input shaft and an output shaft and two power paths between the input shaft and a main gear set. The transmission also comprises a first, second, third and fourth shafts, wherein at least one electric machine can be connected to one of the shafts of the main gear set, the first shaft can be connected via a first shifting element to a first power path and via a second shifting element to a second power path, the second shaft can be connected via a third shifting element to the first power path and via a fourth shifting element to the second power path, the third shaft is continuously connected to the output shaft, the fourth shaft can be fixed via a sixth shifting element and can be connected via a fifth shifting element to the first power path.Type: GrantFiled: January 30, 2013Date of Patent: April 15, 2014Assignee: ZF Friedrichshafen AGInventor: Peter Ziemer
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Patent number: 8663056Abstract: A transmission comprising four gear sets (P1, P2, P3, P4), eight shafts and six shift elements. The drive shaft is connected with sun gear of set (P1) and carrier of set (P4). Carrier of set (P1) is connected to shaft (3) which is connectable to a housing, via a first brake, and connectable to shaft (5), via clutch (35). Shaft (5) interconnects the ring gear of set (P2) with the sun gears of sets (P3, P4). Shaft (6) interconnects ring gear of set (P1) with carrier of set (P2). Shaft (4) couples sun gear of set (P2) to the housing, via a brake. Ring gear of set (P3) is connected to the housing. The output shaft is connectable, via clutch (27), with shaft (7) which is connected to ring gear of set (P4) and, via clutch (28), with shaft (8) which is connected to carrier of set (P3).Type: GrantFiled: August 19, 2010Date of Patent: March 4, 2014Assignee: ZF Friedrichshafen AGInventors: Gerhard Gumpoltsberger, Christian Sibla, Stefan Beck, Josef Haupt, Gert Bauknecht, Peter Ziemer
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Patent number: 8657717Abstract: A multi step transmission comprising planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The sun gear of gearset (P1) couples drive shaft (1). The carrier of set (P1) couples shaft (3), which couples housing (G) via brake (03), shaft (1) via clutch (13) and shaft (6) via clutch (36). Shaft (6) couples the ring and sun gear of gearsets (P2 P3) respectively, and, via clutch (68), shaft (8), which couples the carrier of gearset (P4). Shaft (1) couples the carrier of gearset (P4). Shaft (7) couples the ring gear of gearset (P1) and the carrier of set (P2). The sun gear of gearset (P4) couples shaft (4), which couples housing (G) via brake (04). The ring gear of gearset (P3) couples shaft (5), which couples housing (G) via brake (05). Output shaft (2) couples the carrier of gearset (P3) and the ring gear of gearset (P4).Type: GrantFiled: August 19, 2010Date of Patent: February 25, 2014Assignee: ZF Friedrichshafen AGInventors: Gerhard Gumpoltsberger, Christian Sibla, Stefan Beck, Josef Haupt, Gert Bauknecht, Peter Ziemer
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Patent number: 8613687Abstract: A planetary gearbox, for an automatic transmission of a motor vehicle, comprising two stages, each provided with a sun gear, a ring gear and interposed planetary gears. The ring gear of the first planetary stage also forms the sun gear of the second stage, and the planetary gears of both stages are guided by a common planet carrier, produced from a casting material, which accommodates the planetary gears of the first stage at an axial offset position to the planetary gears of the second stage. The planet carrier is designed as one-piece such that pockets are respectively disposed in the planet carrier for receiving the planetary gears of the first stage at an offset angle, in the circumferential direction, to the pockets for receiving the planetary gears of the second stage, so that it is possible to form the pockets during casting using slides.Type: GrantFiled: May 19, 2010Date of Patent: December 24, 2013Assignee: ZF Friedrichshafen AGInventors: Hagen Döpfert, Alexander Bucher, Peter Ziemer, Ulrich Hantke
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Patent number: 8597148Abstract: A bearing arrangement for a shaft, particularly a driveshaft (1) in a transmission housing (5) of an automatic transmission with an actuating piston (6) of a shifting element arranged inside the shaft. At least one self-sealing bearing is provided at least on the side of the transmission housing (5) remote from the motor to support the shaft.Type: GrantFiled: May 19, 2010Date of Patent: December 3, 2013Assignee: ZF Friedrichshafen AGInventor: Peter Ziemer
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Publication number: 20130288847Abstract: A motor vehicle multi-stage planetary transmission which has a housing that accommodates four planetary gear sets (P1, P2, P3, P4), shafts (2-9), three clutches (K1, K2, K3) and three brakes (B1, B2, B3) whose selective actuation implements various transmission ratios between drive and output shafts. The carriers of gear sets (P1, P2) are connected by shaft (4), the ring gear of gear set (P2) can be fixed to the housing, via shaft (5), by actuating brake (B1). A ring gear of gear set (P1) and a sun gear of gear set (P2) are coupled by shaft (6) which can be connected, via clutch (K1), to the drive shaft. A sun gear of gear set (P1) can be fixed, via brake (B2), to the housing and can be coupled, by clutch (K2), to drive shaft. The first and second clutches (K1, K2) are startup elements which initiate startup procedures.Type: ApplicationFiled: April 17, 2013Publication date: October 31, 2013Applicant: ZF Friedrichshafen AGInventors: Heribert SCHERER, Gert BAUKNECHT, Peter ZIEMER
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Patent number: 8545364Abstract: A gear set arrangement for a planetary transmission comprising at least first and second simple planetary gear sets, each having sun and ring gears and a carrier supporting planetary gears. The gear sets are coaxially nested with the first gear set being radially within the sun gear of the second gear set in a common radial plane or radial planes which are only slightly axially offset. The ring gear of the inner first gear set and the sun gear of the outer second gear set, and the carriers of the two gear sets, are coupled in a fixed manner. To avoid forced movement of the gears, only one of the sun gear, the ring gear or the carrier, of each of the first and the second gear sets is radially supported substantially free of radial play on a centrally disposed transmission shaft or with respect to a centered supported component.Type: GrantFiled: May 19, 2010Date of Patent: October 1, 2013Assignee: ZF Friedrichshafen AGInventors: Peter Ziemer, Hagen Dopfert, Jurgen Kemmer
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Patent number: 8529394Abstract: A multi step transmission comprising four planetary gear sets, shafts, and shift elements, the sun gear of gearset (P1) couples shaft (4) which couples housing (G) via brake (04), the carrier of gearset (P1) couples shaft (3) which couples housing (G) via brake (03), and drive shaft (1) via clutch (13), and shaft (6) via clutch (36). Shaft (6) couples the ring gear of gearset (P2) and is operatively connected to the sun gear of gearset (P4). Shaft (1) couples the sun gear of gearset (P2) and the carrier of gearset (P3). Shaft (5) couples the ring gear of gearset (P1), the carrier of gearset (P2), and the sun gear of gearset (P3). The ring gear of gearset (P4) couples housing (G). Output shaft (2) detachably couples shaft (7), which couples the ring gear of gearset (P3), via clutch (27), and operatively couples the carrier of gearset (P4).Type: GrantFiled: August 19, 2010Date of Patent: September 10, 2013Assignee: ZF Friedrichshafen AGInventors: Gerhard Gumpoltsberger, Christian Sibla, Stefan Beck, Josef Haupt, Gert Bauknecht, Peter Ziemer
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Patent number: 8523728Abstract: The 8-speed transmission which comprises an input shaft (AN), an output shaft (AB), four planetary gearsets (RS1, RS2, RS3, RS4), eight rotary shafts (1, 2, 3, 4, 5, 6, 7, 8), and five shifting elements (A, B, C, D, E). The input shaft is directly connected to the fourth planetary gear set while the output shaft is directly connected to the third planetary gear. A third shaft directly connects one element of the first planetary gear set with one element of the fourth planetary gear set. A fifth shaft directly connects one element of the second planetary gear set with one element of the third planetary gear set. A sixth shaft directly connects one element of the first planetary gear set with one element of the third planetary gear set. A seventh shaft directly connects one element of the fourth planetary gear set with one element of the fifth shifting element.Type: GrantFiled: December 10, 2012Date of Patent: September 3, 2013Assignee: ZF Friedrichshafen AGInventors: Michael Kamm, Gabor Diosi, Josef Haupt, Gerhard Gumpoltsberger, Peter Ziemer, Martin Brehmer
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Patent number: 8512192Abstract: A lubrication device for a planetary transmission with a plurality of planetary gearsets in which a ring gear carrier, which supports a ring gear of a first planetary gearset, is connected to a planetary gear carrier which supports a plurality of planetary gears of an adjacent, second planetary gearset, and in which a lubricant supply for the planetary gears of the second planetary gearset is provided. To provide an inexpensive, simply designed and reliable lubricant supply to the planetary gears of the web carrier coupled to the ring gear of the other planetary gearset, the ring gear is sealed relative to the ring gear carrier of the first planetary gearset and relative to the planetary gear carrier of the second planetary gearset.Type: GrantFiled: May 19, 2010Date of Patent: August 20, 2013Assignee: ZF Friedrichshafen AGInventors: Peter Ziemer, Gert Bauknecht
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Patent number: 8506444Abstract: A vehicle multi-speed automatic transmission which comprises an input shaft (AN) and an output shaft (AB); first, second, third and fourth planetary gear sets (RS1, RS2, RS3, RS4); at least third, fourth, fifth, sixth, seventh and eighth rotatable shafts (3, 4, 5, 6, 7, 8); and first, second, third, fourth and fifth shifting elements (A, B, C, D, E) whose selective engagement, in combinations of three engaged shifting elements, defines different gear ratios, between the input shaft (AN) and the output shaft (AB), for implementing eight forward gears and at least one reverse gear. When shifting from one forward gear into a successive higher or lower forward gear, only a single one of the first, the second, the third, the fourth and the fifth shift elements is disengaged and only a single one of the first, the second, the third, the fourth and the fifth shift elements is engaged.Type: GrantFiled: August 2, 2012Date of Patent: August 13, 2013Assignee: ZF Friedrichshafen AGInventors: Michael Kamm, Gabor Diosi, Josef Haupt, Gerhard Gumpoltsberger, Peter Ziemer, Martin Brehmer
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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
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Publication number: 20130196808Abstract: A transmission comprises an input shaft and an output shaft and two power paths between the input shaft and a main gear set. The transmission also comprises a first, second, third and fourth shafts, wherein at least one electric machine can be connected to one of the shafts of the main gear set, the first shaft can be connected via a first shifting element to a first power path and via a second shifting element to a second power path, the second shaft can be connected via a third shifting element to the first power path and via a fourth shifting element to the second power path, the third shaft is continuously connected to the output shaft, the fourth shaft can be fixed via a sixth shifting element and can be connected via a fifth shifting element to the first power path.Type: ApplicationFiled: January 30, 2013Publication date: August 1, 2013Inventor: Peter Ziemer
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Publication number: 20130196807Abstract: A hybrid drive train for a motor vehicle, comprising at least one internal combustion engine and at least one electric motor, which is functionally connected to the internal combustion engine, or can be functionally connected to said internal combustion engine, wherein a multi-speed transmission having two planetary gear sets, with at least one transmission input shaft and at least one transmission output shaft is provided, wherein the multi-speed transmission exhibits at least four shift elements, the selective actuation of which results in different transmission ratios between the at least one transmission input shaft and the transmission output shaft, such that at least three forward gears are realized.Type: ApplicationFiled: January 30, 2013Publication date: August 1, 2013Inventor: Peter Ziemer
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Publication number: 20130196810Abstract: A transmission comprises a transmission input shaft, a transmission output shaft, and three power paths situated between the transmission input shaft and a main gear set. The main gear set comprises two single planetary gear sets a first, a second, a third and a fourth shafts. An electric motor is connected with at least one of the four shafts. The first shaft can be connected with the first power path via a first switching element and with the third power path via a second switching element. The second shaft can be connected with the first power path via a third switching element and with the third power path via a fourth switching element. The third shaft is constantly connected with the transmission output shaft. The fourth shaft can be connected with the second power path via a fifth switching element and can be fixed by a sixth switching element.Type: ApplicationFiled: January 30, 2013Publication date: August 1, 2013Inventor: Peter Ziemer
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Publication number: 20130196809Abstract: A transmission comprises an input shaft, an output shaft and at least two power paths between the input shaft and a driving gear set with a first, second, third and fourth shafts, wherein a first power paths has a first fixed gear ratio and a second of the power paths has a second fixed gear ratio smaller than the first fixed gear ratio. The first shaft can be fixed by a first gear-shifting element, and can be connected by a second-gear shifting element to the first power path. The second shaft can be connected by a third gear-shifting element to the first power path and by a fourth gear-shifting element to the second power path. The third shaft is permanently connected to the output shaft. The fourth shaft can be connected by a fifth gear-shifting element to the second power path and can be fixed by a sixth gear-shifting element.Type: ApplicationFiled: January 30, 2013Publication date: August 1, 2013Inventor: Peter Ziemer
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Patent number: 8496562Abstract: A method is described for the operation of a transmission device (1) with a plurality of frictional shift elements (A, D, E, F) and at least one interlocking shift element (B, C) for obtaining various gear ratios. When a command is received for a gearshift during which the interlocking shift element (C) has to be changed from an open to a closed operating condition, the interlocking shift element (C) is at least approximately synchronized by increasing the transmission capacity of at least one frictional shift element (A) which does not have to be engaged in the force flow either to obtain the gear ratio that is to be disengaged or to obtain the gear ratio that is to be engaged.Type: GrantFiled: January 13, 2010Date of Patent: July 30, 2013Assignee: ZF Friedrichshafen AGInventors: Jorg Arnold, Klaus Steinhauser, Valentine Herbeth, Christian Popp, Thilo Schmidt, Peter Ziemer, Gabor Diosi, Christoph Margraf
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Patent number: 8485934Abstract: A multi-ratio transmission comprising four planetary gearsets, eight rotary shafts and six shifting elements including first, second, third and fourth clutches and first and second brakes. The shafts either directly couple or selectively couple, via the shifting elements, the gearsets to each other or a housing of the transmission so as to implement nine forward gears and one reverse gear.Type: GrantFiled: August 11, 2010Date of Patent: July 16, 2013Assignee: ZF Friedrichshafen AGInventors: Gerhard Gumpoltsberger, Christian Sibla, Stefan Beck, Josef Haupt, Gert Bauknecht, Peter Ziemer
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Patent number: 8460144Abstract: An arrangement which comprises at least one claw clutch for the shiftable coupling and decoupling of a shaft (1), in an automatic transmission of a planetary design, with at least one component. The shaft can be connected to a component of the planetary gearset (4) and the claw clutch is arranged centrally, substantially inside a sun gear (3) of the planetary gearset (4).Type: GrantFiled: May 19, 2010Date of Patent: June 11, 2013Assignee: ZF Friedrichshafen , AGInventor: Peter Ziemer
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Patent number: 8444525Abstract: A transmission comprising four planetary gear sets, eight shafts and six shift elements. The sun gear of gear set (P1) is fixed via brake (04), the carrier of gear set (P1) is fixed via brake (03) and the drive via clutch (13), and shaft (6) via clutch (36). Sixth shaft (6) is connected to the ring gear of gear set (P2) and the sun gear of gear set (P4), the drive is connected to the sun gear of gear set (P2) and is connectable to the carrier of gear set (P3). Seventh shaft (7) is connected to the ring gear of gear set (P1) and the carrier of gear set (P2), and is connectable to the sun gear of gear set (P3). The ring gear of the fourth gear set (P4) is connectable to the housing via brake (05). The output is connected to the ring gear of third gear set (P3) and the carrier of fourth gear set (P4).Type: GrantFiled: August 19, 2010Date of Patent: May 21, 2013Assignee: ZF Friedrichshafen AGInventors: Gerhard Gumpoltsberger, Christian Sibla, Stefan Beck, Josef Haupt, Gert Bauknecht, Peter Ziemer