Hybrid Drivetrain Module With Elastic Clutch Mounting for Higher Torque
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hybrid modules for vehicle drive trains face limitations in transmitting high torques due to reduced torque transmission efficiency caused by friction clutches, which experience counterforces that reduce the actual torque transmitted to 50% of the nominal torque.
Innovation Solution
A hybrid module design featuring an input part with a rotatable inner disk carrier, an output part with an outer disk carrier connected via fastening sections with increased axial elastic mobility, and a spring device to brace the disks for frictional engagement, allowing higher torque transmission by compensating displacement friction and reducing counterforces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a friction clutch is used to compensate drive speed and transmission speed, then the clutch can be engaged and disengaged to control torque transmission, but the counterforce against the spring pressing force reduces the actual torque to 50% of nominal torque
Solution Approach 1:
The patent changes the physical parameters of the fastening sections by reducing their thickness and/or material strength compared to the outer disk, creating zones of increased elastic mobility. This parameter change allows the fastening sections to deform elastically under load, compensating for displacement friction and reducing counterforces, thereby enabling higher torque transmission while maintaining clutch control functionality
Solution Approach 2:
The patent applies local quality by creating specific regions (fastening sections) with different material properties than the rest of the outer disk. These localized areas have reduced thickness and/or material strength to provide targeted elastic mobility where needed for torque compensation, while the rest of the disk maintains its structural integrity
2Adaptability or versatility
If the material of fastening sections is formed with lower hardness, lower thickness, and lower material strength, then elastic mobility is increased to compensate displacement friction, but the structural integrity of the outer disk is reduced
Solution Approach 1:
The patent segments the outer disk into different functional zones: fastening sections with reduced thickness and/or material strength for elastic mobility, and the remaining disk structure with full thickness and material strength for structural integrity. This segmentation allows each zone to perform its specific function optimally without compromising the other
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The hybrid module effectively transmits higher torques by minimizing counterforces against contact pressure, enabling efficient power transfer in all operating conditions.
Implementation Method 1
an elastic mobility of the plurality of fastening sections is increased in an axial direction... the displacement friction occurring when the friction clutch is actuated in the toothing between the outer disk and the outer disk carrier can be at least partially compensated
Implementation Method 2
at least one spring device with which the at least one outer disk and the at least one inner disk can be braced with a contact pressure to close the friction clutch
Implementation Method 3
friction clutch which can be switched between an open position and a closed position... at least one outer disk and at least one inner disk can be braced with a contact pressure to close the friction clutch
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a hybrid module (1) for a drivetrain of a motor vehicle, comprising: - an input part (2) having an inner plate carrier (4) which can rotate about a rotational axis (3), at least one inner plate (5) being mounted on the inner plate carrier (4); - an output part (6) having an outer plate carrier (7), at least one outer plate (8) being mounted on the outer plate carrier (7) by way of a plurality of mounting sections (9) and an ability of the plurality of mounting sections (9) to move resiliently in an axial direction (10) being enhanced; and - at least one spring device (11), with which the at least one outer plate (8) and the at least one inner plate (5) can be clamped together with a pressing force to form a friction connection between the at least one outer plate (8) and the at least one inner plate (5).