Nested Triple Clutch Device for Compact Drivetrain
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Solution Overview
Problem
Existing triple clutch devices for motor vehicle drivetrains have complex actuating systems and high manufacturing and assembly costs, despite their compact design.
Innovation Solution
A triple clutch device with a double clutch device and a separating clutch device, featuring a unique arrangement of disk clutches where the third disk set is radially nested inside the first disk set, reducing axial installation length and costs, and incorporating hydraulically drivable force application elements for simplified actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the third disk set is arranged radially outside the first disk set, then the axial installation length is reduced, but the manufacturing and assembly costs increase
Solution Approach 1:
The third disk set is arranged radially inside the first disk set, creating a nested configuration where one clutch component is positioned within the radial space of another. This nesting approach achieves compact axial length while simplifying the overall structure, reducing manufacturing complexity, and lowering assembly costs compared to radial external arrangement
2Reliability
If a complex actuating device is used for the third disk clutch, then the torque transmission control is improved, but the device complexity increases
Solution Approach 1:
The actuating devices for the first and third disk clutches are merged into a common actuating mechanism. The first and third disk sets share a common actuating piston that acts on both clutches simultaneously, eliminating the need for separate actuating devices. This merging reduces overall device complexity while maintaining reliable torque transmission control through the shared hydraulic actuation system
Data Source
AI summary
The present invention relates to a triple clutch device (2) for arrangement in a drivetrain of a motor vehicle having a double clutch device comprising a first disk clutch (40) for selective torque transmission between a first input-side disk carrier (52) and a first output-side disk carrier (54) and a second disk clutch (42) for selective torque transmission between a second input-side disk carrier (56), which is connected rotationally fixed to the first input-side disk carrier (52), and a second output-side disk carrier (58), and having a separating clutch device comprising a third disk clutch (44) for selective torque transmission between a third input-side disk carrier (60) and a third output-side disk carrier (62), wherein the first input-side disk carrier (52) is connected rotationally fixed to the third output-side disk carrier (62), and a first disk set (46) of the first disk clutch (40) and a third disk set (50) of the third disk clutch (44) are arranged nested in the radial directions (8, 10). The third disk set (50) is arranged within the first disk set (46) in the radial direction (10). The present invention additionally relates to a drivetrain of a motor vehicle comprising such a triple clutch device (2).