Twist Beam Axle Integrated Articulated Holder for Wheel Suspension
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Solution Overview
Problem
Existing wheel suspension systems with twist beam axles and Watt linkages are complex, heavy, and offer low driving comfort due to distant pivot points from the wheel center plane, affecting kinematic properties.
Innovation Solution
A wheel suspension system with a twist beam axle and Watt linkage where each trailing arm integrates an articulated holder for direct coupling, reducing complexity and weight, and positioning the pivot point close to the wheel center plane for improved kinematics and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the Watt linkage is connected to the trailing arms via radial arms with inboard pivot points, then the connection is more stable, but the device complexity and weight increase
Solution Approach 1:
The patent merges the Watt linkage connection directly into the trailing arm structure by integrating an articulated holder (ball joint) into the trailing arm itself. This eliminates the separate radial arms and their associated mounting components, reducing the number of parts while maintaining the connection stability through the integrated ball joint design.
Solution Approach 2:
The patent extracts and eliminates the intermediate radial arms from the suspension system. By removing this intermediate connection element and directly integrating the Watt linkage into the trailing arm via an articulated holder, the design simplifies the overall structure while preserving the necessary connection functionality.
2Stability of the object's composition
If the Watt linkage is connected via radial arms with inboard pivot points, then the connection is more stable, but the weight of the twist beam axle increases
Solution Approach 1:
The patent combines the Watt linkage connection functionality directly into the trailing arm structure through an integrated articulated holder. This merger eliminates the need for separate radial arms and their mounting hardware, thereby reducing the overall weight of the twist beam axle while maintaining connection stability.
Solution Approach 2:
The patent removes the intermediate radial arms from the system, extracting unnecessary weight-carrying components. By eliminating these intermediate elements and using a direct integration approach, the weight of the twist beam axle is reduced while the ball joint maintains stable connection.
3Stability of the object's composition
If the pivot points are located far inboard away from the wheel center plane, then the connection is more stable, but the kinematic properties deteriorate
Solution Approach 1:
The patent employs a ball joint (articulated holder) that provides dynamic adaptation capabilities. The ball joint allows the connection to accommodate various angular positions and movements, enabling the pivot point to effectively adapt to different kinematic conditions while maintaining stability, thus improving the kinematic properties of the wheel suspension system.
Solution Approach 2:
The patent changes the pivot point location parameter by integrating the articulated holder directly into the trailing arm at a position closer to the wheel center plane. This parameter change optimizes the kinematic properties of the suspension system while the ball joint design maintains connection stability through its spherical articulation capability.
Data Source
AI summary
The invention concerns a wheel suspension system for the non-steered wheels (16) of a motor vehicle, with a twist beam axle (2) which comprises two wheel-supporting trailing arms (3, 13) pivotably mounted on a motor vehicle body (15) and a cross member (6) connecting the trailing arms (3, 13) together, and a Watt linkage (8) also connecting the trailing arms (3, 13) together, at least one articulated holder (10) being integrated in each trailing arm (3, 13) itself for articulated coupling of the Watt linkage (8).