IP Library › Granted Patent US 11,892,066
Granted Patent B2
US 11,892,066 · App. 17/771,691 · Granted Feb 6, 2024

Transmission, drive train and vehicle having a transmission

Inventors: Matthias Reisch (Ravensburg, DE); Stefan Beck (Eriskirch, DE)
Assignee: ZF FRIEDRICHSHAFEN AG
F16H48/10F16H48/22F16H48/32F16H48/34F16H2048/104F16H2048/106F16H2200/0021F16H2200/2007
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Quick Facts
Patent No.
US 11,892,066
App. No.
17/771,691
Granted
Feb 6, 2024
Kind
B2
Abstract

A transmission may include an input shaft, a first output shaft, a second output shaft, a first planetary gearset, and a second planetary gearset connected to the first planetary gearset. Optionally, the input shaft is connected to a first element of the first planetary gearset for conjoint rotation, the first output shaft is connected to a second element of the first planetary gearset for conjoint rotation, and the second output shaft is connected to a third element of the second planetary gearset for conjoint rotation. A third element of the first planetary gearset may be connected to a first element of the second planetary gearset via a shaft for conjoint rotation, and a second element of the second planetary gearset may be fixed in place on a non-rotating component.

Claims (30)

1. A transmission comprising

an input shaft,

a first output shaft,

a second output shaft,

a first planetary gearset, and

a second planetary gearset connected to the first planetary gearset, wherein the planetary gearsets, wherein

the input shaft is connected to a first element of the first planetary gearset for conjoint rotation,

the first output shaft is connected to a second element of the first planetary gearset for conjoint rotation,

the second output shaft is connected to a third element of the second planetary gearset for conjoint rotation,

a third element of the first planetary gearset is connected to a first element of the second planetary gearset via a shaft for conjoint rotation, and

a second element of the second planetary gearset is fixed in place on a non-rotating component,

wherein a shifting element is disposed and designed to connect the two output shafts to one another in a torque-transferring manner, such that a torque to one of the two output shafts is conducted radially outside the shifting element.

2. The transmission according to claim 1 , wherein the shifting element is a clutch.

3. The transmission according to claim 1 , wherein the shifting element is located at least partially within at least one of the third element of the second planetary gearset and a connection with the second output shaft.

4. The transmission according to claim 1 , including an actuator in the form of a hydraulic piston for actuating the shifting element.

5. The transmission according to claim 4 , wherein the hydraulic piston is an integral part of the transmission housing or one of the two second elements.

6. The transmission according to claim 4 , wherein the hydraulic piston is rotatable conjointly with one of the two output shafts.

7. The transmission according to claim 6 , wherein the hydraulic fluid for actuating the hydraulic piston can pass through a component that rotates conjointly with one of the two output shafts.

8. The transmission according to claim 4 , wherein the hydraulic fluid for actuating the hydraulic piston can pass through a hole in one of the two second elements.

9. The transmission according to claim 1 , further comprising an electromechanical actuator for actuating the shifting element.

10. The transmission according to claim 9 , wherein the electromechanical actuator comprises at least one of a spindle and a ramp.

11. The transmission according to claim 9 , wherein the electromechanical actuator comprises a lever.

12. The transmission according to claim 1 , wherein an actuator for actuating the shifting element is configured such that an axial force is transferred through one of the two second elements.

13. The transmission according to claim 1 , wherein the second element of one of the two planetary gearsets is configured to be axially displaced for transferring the axial force.

14. The transmission according to claim 12 , wherein a component for transferring the axial force is disposed and designed to guide the axial force through one of the two second elements.

15. The transmission according to claim 1 , wherein the shifting element is a friction clutch, and is configured to transfer forces from a helical gearing as well.

16. The transmission according to claim 1 , further comprising a slotted plate spring for reducing bearing forces when the shifting element is actuated.

17. The transmission according to claim 1 , wherein the input shaft and/or the first element in the first planetary gearset is supported in a floating manner.

18. The transmission according to claim 1 , wherein the second element in the first planetary gearset and/or the third element in the second planetary gearset is supported in a floating manner.

19. The transmission according to claim 1 , wherein a pitch of the gearing on the third element in the first planetary gearset and on the first element in the second planetary gearset is substantially the same, and they each have the same sign.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 25, 2022
From: REISCH, MATTHIAS; BECK, STEFAN
To: ZF FRIEDRICHSHAFEN AG
Reel/Frame 059700/0426 →
Priority Claims (1)
DE 102019216510.9 · Oct 25, 2019 · national
Continuity (1)
Related Publication 20230213092A1 · Jul 6, 2023
Cited By (1)
US 12,655,894