公开(公告)号：US11752849B2

公开(公告)日：2023-09-12

申请号：US17879173

申请日：2022-08-02

Applicant: ZF FRIEDRICHSHAFEN AG

Inventor： Michael Wechs ,  Fabian Kutter ,  Thomas Martin ,  Oliver Schaudt

IPC: F16H37/08 ,  B60K1/00

CPC classification number: B60K1/00 ,  F16H37/082 ,  B60K2001/001

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.

公开(公告)号：US20230037299A1

公开(公告)日：2023-02-09

申请号：US17876021

申请日：2022-07-28

Applicant: ZF FRIEDRICHSHAFEN AG

Inventor： Michael Wechs ,  Fabian Kutter ,  Thomas Martin ,  Oliver Schaudt

IPC: F16H37/08 ,  B60K17/08 ,  B60K17/16 ,  B60K1/00

Abstract: 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 a first sun gear and a second sun gear, a first ring gear and a plurality of stepped planet gears rotatably mounted at a first planet carrier. The first ring gear is configured to drivingly connect to an electric machine. The first planet carrier is connectable to an output shaft of the gear unit to be fixed with respect to relative rotation. The first gear shifting element is configured to fix the second sun gear relative to a housing in a closed state, and the second gear shifting element is configured to fix the first sun gear relative to the housing in a closed state. One of the two gear shifting elements is in the closed state for driving the output shaft in rotation.

公开(公告)号：US11807102B2

公开(公告)日：2023-11-07

申请号：US17876115

申请日：2022-07-28

Applicant: ZF FRIEDRICHSHAFEN AG

Inventor： Michael Wechs ,  Fabian Kutter ,  Thomas Martin ,  Oliver Schaudt

IPC: B60K6/365 ,  B60K6/547

CPC classification number: B60K6/365 ,  B60K6/547

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.

公开(公告)号：US11642950B2

公开(公告)日：2023-05-09

申请号：US17464243

申请日：2021-09-01

Applicant: ZF Friedrichshafen AG

Inventor： Thomas Martin ,  Michael Wechs ,  Fabian Kutter ,  Oliver Schaudt

IPC: B60K1/00

CPC classification number: B60K1/00 ,  B60K2001/001 ,  B60Y2400/73

Abstract: A transmission (1) for an electric drive of a vehicle includes a first input shaft (10), a second input shaft (11), an output shaft (12), two shift elements (3, 4) for connecting the transmission (1) to an electric machine of the electric drive, and a planetary gear set (5) configured as a stepped planetary gear set. A first sun gear (5.1) of the planetary gear set (5) is rotationally fixed to the first input shaft (10). A second sun gear (5.2) of the planetary gear set (5) is rotationally fixed to the second input shaft (11). A ring gear (5.5) of the planetary gear set (5) is fixed at a rotationally fixed component (0) of the transmission (1). A planet carrier (5.6) of the planetary gear set (5) is rotationally fixed to the output shaft (12). A first shift element (3) is configured for connecting the first input shaft (10) to the electric machine of the electric drive. A second shift element (4) is configured for connecting the second input shaft (11) to the electric machine of the electric drive.

公开(公告)号：US11761521B2

公开(公告)日：2023-09-19

申请号：US17876288

申请日：2022-07-28

Applicant: ZF FRIEDRICHSHAFEN AG

Inventor： Michael Wechs ,  Fabian Kutter ,  Thomas Martin ,  Oliver Schaudt

IPC: F16H37/08 ,  B60K1/00 ,  B60K17/08 ,  B60K17/16

CPC classification number: F16H37/082 ,  B60K1/00 ,  B60K17/08 ,  B60K17/165 ,  B60K2001/001 ,  F16H2200/0034 ,  F16H2200/201 ,  F16H2200/2005 ,  F16H2200/2007 ,  F16H2200/2033 ,  F16H2200/2064 ,  F16H2200/2094

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.

公开(公告)号：US11738633B2

公开(公告)日：2023-08-29

申请号：US17875584

申请日：2022-07-28

Applicant: ZF FRIEDRICHSHAFEN AG

Inventor： Michael Wechs ,  Fabian Kutter ,  Thomas Martin ,  Oliver Schaudt

IPC: B60K6/365 ,  B60K6/547 ,  B60K6/48

CPC classification number: B60K6/365 ,  B60K6/48 ,  B60K6/547 ,  B60K2006/4825

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.

公开(公告)号：US20230078446A1

公开(公告)日：2023-03-16

申请号：US17876115

申请日：2022-07-28

Applicant: ZF Friedrichshafen AG

Inventor： Michael WECHS ,  Fabian Kutter ,  Thomas Martin ,  Oliver Schaudt

IPC: B60K6/365 ,  B60K6/547

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.

公开(公告)号：US20220065334A1

公开(公告)日：2022-03-03

申请号：US17464243

申请日：2021-09-01

Applicant: ZF Friedrichshafen AG

Inventor： Thomas Martin ,  Michael Wechs ,  Fabian Kutter ,  Oliver Schaudt

IPC: F16H3/56

Abstract: A transmission (1) for an electric drive of a vehicle includes a first input shaft (10), a second input shaft (11), an output shaft (12), two shift elements (3, 4) for connecting the transmission (1) to an electric machine of the electric drive, and a planetary gear set (5) configured as a stepped planetary gear set. A first sun gear (5.1) of the planetary gear set (5) is rotationally fixed to the first input shaft (10). A second sun gear (5.2) of the planetary gear set (5) is rotationally fixed to the second input shaft (11). A ring gear (5.5) of the planetary gear set (5) is fixed at a rotationally fixed component (0) of the transmission (1). A planet carrier (5.6) of the planetary gear set (5) is rotationally fixed to the output shaft (12). A first shift element (3) is configured for connecting the first input shaft (10) to the electric machine of the electric drive. A second shift element (4) is configured for connecting the second input shaft (11) to the electric machine of the electric drive.