Patents by Inventor Michael WECHS

Michael WECHS 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: 20230078446
    Abstract: A gear unit for a powertrain and a powertrain including a stepped planetary gearset, a first gear shifting element and a second gear shifting element. The stepped planetary gearset has a first sun gear, a first ring gear, a second ring gear, and stepped planet gears rotatably mounted at a first planet carrier. The first ring gear is fixed with respect to rotation to an output shaft of the gear unit. The second ring gear is fixed with respect to rotation to a housing. The first gear shifting element drivingly connects the first sun gear to an electric machine in a closed state, and the second gear shifting element drivingly connects the first planet carrier to the electric machine in a closed state, and one of the two gear shifting elements is in the closed state for driving the output shaft in rotation.
    Type: Application
    Filed: July 28, 2022
    Publication date: March 16, 2023
    Inventors: Michael WECHS, Fabian Kutter, Thomas Martin, Oliver Schaudt
  • Publication number: 20230044179
    Abstract: A gear unit for a powertrain of a vehicle includes a stepped planetary gearset, a first gear shifting element and a second gear shifting element. The stepped planetary gearset has at least a first ring gear, a second ring gear and a plurality of stepped planet gears rotatably mounted at a first planet carrier. The first planet carrier drivingly connects to an electric machine. The second ring gear is connected to an output shaft of the gear unit so as to be fixed with respect to rotation relative to it. The first gear shifting element fixes the first ring gear relative to a housing in a closed state, and the second gear shifting element brings the stepped planetary gearset into direct drive in a closed state. One of the two gear shifting elements is in the closed state for driving the output shaft in rotation.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 9, 2023
    Inventors: Michael WECHS, Fabian KUTTER, Thomas MARTIN, Oliver SCHAUDT
  • Publication number: 20230037558
    Abstract: A gear unit includes: a stepped planetary gearset, and first and second gear shifting elements. The stepped planetary gearset has first and second sun gears, a first ring gear and a plurality of stepped planet gears rotatably mounted at a first planet carrier. The first ring gear is connected to an output shaft of the gear unit thus being fixed with respect to rotation relative to it. The first planet carrier is connected to a housing and fixed with respect to rotation relative to it. The first gear shifting element drivingly connects the second sun gear to an electric machine in a closed state, and the second gear shifting element drivingly connects the first sun gear to an electric machine in a closed state. One of the two gear shifting elements is in the closed state for driving the output shaft in rotation.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 9, 2023
    Inventors: Michael WECHS, Fabian KUTTER, Thomas MARTIN, Oliver SCHAUDT
  • Publication number: 20230044964
    Abstract: A gear unit for a powertrain and gear unit having a stepped planetary gearset, a first gear shifting element and a second gear shifting element. The stepped planetary gearset has a first sun gear, a first ring gear, a second ring gear, and a plurality of stepped planet gears rotatably mounted at a first planet carrier. The first sun gear is connected to an electric machine. The first planet carrier is fixedly connected to a housing with respect to rotation. The first gear shifting element connects the second ring gear to an output shaft of the gear unit in a closed state, and the second gear shifting element connects the first ring gear to the output shaft of the gear unit in a closed to state, and one of the two gear shifting elements) is in the closed state for driving the output shaft in rotation.
    Type: Application
    Filed: August 2, 2022
    Publication date: February 9, 2023
    Inventors: Michael WECHS, Fabian KUTTER, Thomas MARTIN, Oliver SCHAUDT
  • Publication number: 20220163095
    Abstract: A wheel head transmission (1) comprising a first and second shafts (W1, W2) which are connected to one another via a planetary transmission (PG). The wheel head transmission (1) comprises first and second planetary stages (P1, P2), which include a first element (E11, E12), a second element (E21, E22) and a third element (E31, E32). The first element (E11) of the first planetary stage (P1) is connected to the first shaft (W1) for conjoint rotation, the second element (E21) of the first planetary stage (P1) and the third element (E32) of the second planetary stage (P2) are connected to one another and the second shaft (W2) for conjoint rotation. The third element (E31) of the first planetary stage (P1) and the first element (E12) of the second planetary stage (P2) are connected together for conjoint rotation, and the second element (E22) of the second planet stage (P2) is immobilized.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 26, 2022
    Inventors: Matthias KOBLER, Max SCHREIBER, Michael WECHS
  • Publication number: 20200318713
    Abstract: A transmission, in particular a reducer transmission (34), which has two planetary sets and two shift elements (S1, S2). In addition, a transmission assembly which has a main transmission (32), of a planetary design, in particular a continuous power split transmission of a planetary design, and such a transmission which is coupled, as a reducer transmission (34), with the main transmission (32). Also, a powertrain (10) of a working machine with such a transmission assembly (30).
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Stefan BECK, Raphael HIMMELSBACH, Michael WECHS, Philipp RECHENBACH, Johannes KALTENBACH
  • Publication number: 20200318718
    Abstract: A power-split transmission (28) with a first power path and a second power path. In this case, the first power path is a mechanical power path and includes a primary planetary gearset (P1), a secondary planetary gearset (P2) and a tertiary planetary gearset (P3). Furthermore, the power-split transmission (28) is equipped with at least four shifting elements. In addition, a method for operating such a power-split transmission (28) is disclosed. Moreover, a drive-train (10) of a working machine with a power-split transmission (28) of the type concerned is presented.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Stefan BECK, Raphael HIMMELSBACH, Philipp RECHENBACH, Michael WECHS, Johannes KALTENBACH
  • Publication number: 20200132171
    Abstract: A transmission (G) for a motor vehicle. The transmission (G) comprises a transmission input (GW1-A), a transmission output (GW2-A), first, second, third and fourth planetary gearsets (P1, P2, P3, P4) and first, second, third, fourth, fifth and sixth shift elements (B1, B2, K1, K2, K3, K4). Ten forward gears and one reverse gear can be achieved between the transmission input (GW1-A) and the transmission output (GW2-A) by selectively operating the six shift elements (B1, B2, K1, K2, K3, K4). A drive train for a motor vehicle having such a transmission (G) is also disclosed.
    Type: Application
    Filed: March 26, 2018
    Publication date: April 30, 2020
    Inventors: Stefan BECK, Johannes KALTENBACH, Michael WECHS, Michael TRÜBENBACH, Kai BORNTRÄGER, Johannes GLÜCKLER, Jens MORAW, Gerhard NIEDERBRUCKER, Peter ZIEMER
  • Publication number: 20200132172
    Abstract: A transmission (G) for a motor vehicle. The transmission (G) has a drive shaft (GW1), an output shaft (GW2-A), first, second, third and fourth planetary gearsets (P1, P2, P3, P4) and first, second, third, fourth, fifth and sixth shift elements (B1, K1, K2, B2, K3, K4). Selective actuation of the six shift elements (B1, K1, K2, B2, K3, K4) implements eleven forward gears and two reverse gears between the drive shaft (GW1) and the output shaft (GW2-A). A drive train for a motor vehicle having such a transmission (G) is also disclosed.
    Type: Application
    Filed: March 26, 2018
    Publication date: April 30, 2020
    Inventors: Stefan BECK, Johannes KALTENBACH, Michael WECHS, Michael TRÜBENBACH, Kai BORNTRÄGER, Johannes GLÜCKLER, Jens MORAW, Gerhard NIEDERBRUCKER, Peter ZIEMER
  • Publication number: 20200055385
    Abstract: A power-split transmission comprises an electric variator (9) and an electric variator (10) which can be connected, by way of a clutch (8), for forward driving, and a clutch (7), for reverse driving, to the drive output shaft (5) in such manner that the drive output shaft (5) can be purely electrically driven even when the input shaft (2) is static.
    Type: Application
    Filed: August 16, 2019
    Publication date: February 20, 2020
    Inventors: Philipp RECHENBACH, Stefan BECK, Viktor WARTH, Johannes KALTENBACH, Raphael HIMMELSBACH, Benedikt REICK, Michael WECHS, Jens MORAW, Gerhard NIEDERBRUCKER
  • Publication number: 20200040968
    Abstract: A transmission (G) for a motor vehicle which has a transmission input (GW1-A), a transmission output (GW2-A), five planetary gear sets (P1, P2, P3, P4, P5) and six shifting elements (B1, B2, K1, K2, K3, B3). By selectively actuating the six shifting elements (B1, B2, K1, K2, K3, B3), ten forward gears and one reverse gear can be selected between the transmission input (GW1-A) and the transmission output (GW2-A). Further, the drive train is typically incorporated into a motor vehicle.
    Type: Application
    Filed: March 26, 2018
    Publication date: February 6, 2020
    Inventors: Stefan BECK, Johannes KALTENBACH, Michael WECHS, Michael TRÜBENBACH, Kai BORNTRÄGER, Johannes GLÜCKLER, Jens MORAW, Gerhard NIEDERBRUCKER, Peter ZIEMER
  • Publication number: 20170219062
    Abstract: A vehicle transmission having a housing and a main transmission which includes input and output shafts and four planetary gearsets. Each of the gearsets has sun and ring gears, a carrier which supports a planetary gearwheel. The sun gear and the carrier of the second gearset are coupled permanently to the input and output shafts, respectively. The carrier of the second gearset is permanently coupled to the carrier of the fourth gearset. The ring gear of the second gearset is permanently coupled to the ring gear of the third gearset. The carrier of the fourth gearset can be coupled, via a first shifting element, to the sun gear of the second gearset. The carrier of the third gearset can be coupled, via a second shifting element, to the housing. The sun gear of the third gearset can be coupled, via third and fourth shifting elements, to the input shaft.
    Type: Application
    Filed: July 2, 2015
    Publication date: August 3, 2017
    Inventors: Viktor WARTH, Stefan BECK, Michael WECHS, Christian SIBLA
  • Publication number: 20170204942
    Abstract: A multi-speed transmission (9) for a rail vehicle. The multi-speed transmission (9) has at least one transmission input (AN), at least one transmission output (AB), at least one planetary gearset (PR1, PR2), at least one shifting element (SE1, SE2) and a housing (G). The planetary gearset (PR1, PR2) has a sun gear (S1, S2), at least one planetary carrier (PT1, PT2) with planetary gearwheels, and a ring gear (H1, H2), and rotational movement from a drive element (8) is introduced into the multi-speed transmission (9). By actuating the at least one shifting element (SE1, SE2), at least two different transmission ratios can be obtained between the transmission input (AN) and the transmission output (AB).
    Type: Application
    Filed: June 2, 2015
    Publication date: July 20, 2017
    Applicant: ZF Friedrichshafen AG
    Inventors: Kazutaka IUCHI, Michael WECHS, Stefan BECK, Viktor WARTH, Bernd SOMSCHOR, Benedikt REICK
  • Publication number: 20160238123
    Abstract: Torsional vibration damper arrangement in a housing with a drive-side transmission element, an output-side transmission element, and a planetary gear unit arranged there between having a sun gear, an arm supporting a planet gear, and a ring gear with an energy storage and damping element acting at the planetary gear unit. To increase the damping capacity and to accommodate a large energy storage volume and minimize friction effects due to centrifugal accelerations, one of the planetary gear unit members, the sun gear or the arm or the ring gear, can be coupled to the housing via the energy storage and damping element. The energy storage and damping element has a helical compression spring arranged in a circumferential groove in the transmission housing. The groove is spiral-shaped in axial direction of the transmission housing.
    Type: Application
    Filed: August 4, 2014
    Publication date: August 18, 2016
    Inventors: Michael WECHS, Thomas MAUZ, Bastian VOLPERT
  • Publication number: 20160040768
    Abstract: A motor vehicle group transmission with at least one housing, a main transmission and a range transmission connected downstream from the main transmission. The main transmission comprises at least four planetary gearsets, each of which comprises a sun gear, a carrier, a planetary gearwheel mounted on the carrier and a ring gear, and at least five shifting elements. The range transmission includes at least two planetary gearsets, each of which has a sun gear, a carrier, a planetary gearwheel mounted on the carrier and a ring gear, and at least three shifting elements. The main transmission and the range transmission, together in combination, provide at least thirteen forward gears and at least eight reverse gears.
    Type: Application
    Filed: July 7, 2015
    Publication date: February 11, 2016
    Inventors: Stefan BECK, Michael WECHS, Viktor WARTH
  • Publication number: 20150354681
    Abstract: A group transmission of a motor vehicle having a main transmission and a downstream range group. The range group has two gear steps for different speed ranges and a reversing step for reverse driving. The range group has two planetary gearsets, each with a planet carrier, a sun and ring gears. To engage a driving range for lower speeds, the sun gear of the second gearset and the ring gear of the first gearset are locked to the housing by a first clutch. To engage a driving range for higher speeds, two respective elements of the two gearsets can be connected to one another, in a rotationally fixed manner, by a second clutch. To engage a reversing driving range, the planet carrier of the first gearset and the ring gear of the second gearset are locked relative to the housing by a third clutch.
    Type: Application
    Filed: January 7, 2014
    Publication date: December 10, 2015
    Inventors: Johannes KALTENBACH, Eckhardt LÜBKE, Michael WECHS
  • Publication number: 20150211608
    Abstract: A gear unit for a compound transmission has a planetary stage that couples an input and an output shaft for different transmission ratios. The planetary stage includes a sun gear, a ring gear and planet gears rotatably supported at a planet carrier. The planet gears have a region with two different toothings arranged axially offset with respect to an axis of rotation of the planetary stage. A meshing engagement with a first sun gear and/or a first ring gear is produced via the first toothing. The planet gears mesh at the second toothing with a second sun gear and/or a second ring gear, and one component of the planetary stage is connected to the input shaft to be fixed with respect to rotation and one component is fixed at a housing, while the rest of the components can be coupled with the output shaft, respectively.
    Type: Application
    Filed: January 29, 2015
    Publication date: July 30, 2015
    Inventors: Raphael HIMMELSBACH, Michael WECHS, Karl GRAD, Stefan BECK, Martin RATTAY
  • Publication number: 20140038762
    Abstract: A double clutch transmission for a vehicle comprising partial transmissions with an input shaft positioned on an input axis and an output shaft is positioned on the input axis or is at least positioned parallel to a counter shaft axis. A planetary transmission is connected with the output shaft and at least one of the input shafts can be connected with the output shaft via the planetary transmission. M wheel planes and N shifters are positioned, M and N are each natural numbers which are both greater than or equal to 2, and whereby at least N?1 shifter are positioned on the input shaft axis. At least a shift element of one of the N?1 shifter is connected with a shift element of additional N?1 shifters, and in each case a transmission element of two wheel planes is or can be connected with the shaft.
    Type: Application
    Filed: July 19, 2013
    Publication date: February 6, 2014
    Applicant: ZF Friedrichshafen AG
    Inventor: Michael WECHS
  • Publication number: 20130061701
    Abstract: A dual clutch transmission for a motor vehicle which comprises at least two part-transmissions each of which has at least one input shaft and an output shaft arranged as the drive output shaft of both part-transmissions. The at least one input shaft and the output shaft are arranged on a main axis and/or a secondary axis and at least one intermediate transmission with at least one countershaft is provided, the at least one countershaft is designed as the secondary axis relative to the main axis, and at least one of the input shafts can be connected to the output shaft by at least two gearwheel planes and/or by way of at least one shifting element. A plurality of shifting elements N in number are provided with N being an integer larger than or equal to two such that N-1 shifting elements are arranged on the main axis.
    Type: Application
    Filed: August 27, 2012
    Publication date: March 14, 2013
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventor: Michael WECHS