Lever Support Torsion Bar Stabilizer Connection
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Solution Overview
Problem
Existing two-track vehicle axles with double-jointed strut designs face challenges in achieving space-saving deflection behavior while effectively managing torsional movements and stresses between components, particularly in the connection of the torsion bar stabilizer and trailing arm.
Innovation Solution
The implementation of a lever support with at least one ball joint and ball bushing allows for a torque-transmitting coupling between the torsion bar stabilizer and the trailing arm, enabling relative movement and reducing stresses, while omitting the need for a pendulum support and minimizing space requirements, with a fixed and floating bearing configuration ensuring static determination and freedom of movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pendulum support is used to connect the torsion bar stabilizer to the wheel carrier, then the connection is reliable and can handle torsional movements, but the space requirement increases and the design becomes more complex
Solution Approach 1:
The patent combines the pendulum support function and the torsion bar stabilizer connection into a single integrated ball joint with ball bushing. This merging eliminates the need for separate pendulum support components while maintaining the ability to handle torsional movements and providing reliable connection between the torsion bar stabilizer and trailing arm.
Solution Approach 2:
The ball joint with ball bushing serves multiple functions simultaneously: it provides the torque-transmitting connection, allows relative movement between components, accommodates torsional movements of the stabilizer, and eliminates the need for additional pendulum support. This multi-functionality reduces overall space requirements while maintaining connection reliability.
2Stability of the object's composition
If a fixed bearing configuration is used for the ball joint, then the positioning is precise and stable, but the freedom of movement is reduced
Solution Approach 1:
The patent employs a dynamic bearing configuration where the ball bushing can move relative to the trailing arm within certain limits. This dynamic design allows the system to maintain stable positioning through the fixed bearing aspect while simultaneously providing the necessary freedom of movement through the loose bearing characteristic, enabling torsional movements of the stabilizer.
Solution Approach 2:
The ball joint design incorporates parameters that allow controlled movement - the ball bushing is positioned to provide both fixed support and limited displacement capability. This parameter optimization enables the system to achieve both positioning stability and operational freedom by adjusting the bearing characteristics.
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
This configuration enhances the deflection behavior of the axle, reduces tensile and compressive stresses, and allows for a more compact design, maintaining desired kinematic constraints without additional structural changes, thereby improving the anti-roll bar's functionality and reducing the number of supports needed.
Implementation Method 1
said lever support on the trailing arm is designed with at least one ball joint with a ball socket
Implementation Method 2
a torsion bar stabilizer which is arranged around a substantially transverse direction of the vehicle running axis of rotation is rotatable
Data Source
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AI summary
Disclosed is a wheel axle for a two-track motor vehicle, comprising a theoretical lower control arm plane which is formed by a transverse control arm and a longitudinal control arm and guides a wheel carrier, and a torsion bar stabilizer that can be twisted about an axis of rotation extending substantially transversely to the direction of travel of the vehicle. The final section of the torsion bar stabilizer is connected to the final section of the longitudinal control arm facing away from the wheel carrier by means of a torque transmitting connection. According to the invention, the connection is established by having the torsion bar stabilizer supported in a lever-type manner on the longitudinal control arm.