Hybrid Module Flywheel Intermediate Shaft Vibration Damping
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Solution Overview
Problem
Existing hybrid drive train modules for motor vehicles require significant installation space and often fail to provide reliable torsional vibration damping across all operating states, leading to increased costs and complexity.
Innovation Solution
A hybrid module design that integrates a flywheel directly connected to the intermediate shaft in a torque-proof manner, either as a one-piece or multi-part component, with a positive or non-positive connection, to minimize space usage and ensure consistent vibration damping, using a combination of materials and fastening methods for assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flywheel is integrated into the hybrid module, then torsional vibration damping is improved, but installation space requirements increase significantly
Solution Approach 1:
The flywheel is integrated directly into the hybrid module and non-rotatably connected to the intermediate shaft, merging previously separate components into a unified structure. This integration eliminates the need for separate mounting space while maintaining vibration damping functionality.
Solution Approach 2:
The intermediate shaft serves multiple functions: it transmits torque from the first clutch, connects to the second clutch, and now also serves as the mounting axis for the flywheel. This multi-functionality reduces the overall component count and space requirements.
2Adaptability or versatility
If the flywheel is separated from the second clutch in certain operating states, then clutch control flexibility is improved, but torsional vibration damping reliability deteriorates
Solution Approach 1:
The intermediate shaft acts as an intermediary element that remains continuously connected to both the first clutch and the flywheel. This ensures that the flywheel maintains its damping function regardless of the engagement state of the second clutch, while still allowing the second clutch to operate independently when needed.
3Ease of operation
If traditional hybrid module designs are used, then clutch functionality is achieved, but production costs increase
Solution Approach 1:
By integrating the flywheel directly into the hybrid module's intermediate shaft structure, the number of separate components and assembly steps is reduced. This simplification of the assembly process directly lowers production costs while maintaining all required clutch functionalities.
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 design achieves reliable torsional vibration damping across all operating states while minimizing additional space requirements and reducing production costs by simplifying the assembly process and utilizing a compact, form-fitting connection.
Implementation Method 1
the desired torsional vibration damping on the transmission shaft interacting with this clutch can fail
Implementation Method 2
a flywheel and hybrid drive train
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to a hybrid module (1) for a drive train of a motor vehicle, having a first clutch (2) and an intermediate shaft (4) rotationally fixedly connected to a rotary component (3) of the first clutch (2), wherein the intermediate shaft (4) is or can be additionally rotationally fixedly coupled to a rotary component (6) of a second clutch (5), wherein the intermediate shaft (4) is connected to a flywheel (7) at least partly forming a rotary component (6) of the second clutch (5). The invention further relates to a drive train for a motor vehicle having said hybrid module (1).