Chassis Stabilizer Extension for Vibration Damper Mounting
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Solution Overview
Problem
Commercial vehicle chassis designs face challenges in optimizing the connection of vibration dampers due to space constraints, leading to heavier and more complex connection structures when using air spring bellows with reduced height, which are arranged close to the axle.
Innovation Solution
A chassis arrangement where the end section of the vibration damper is directly connected to the stabilizer arrangement, extending beyond the longitudinal section, allowing for a space-optimized and weight-reduced setup, with separate flange bodies and pins for easy assembly, enabling an axially close and weight-optimized arrangement of air spring bellows without compromising vibration damper space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If air spring bellows with reduced height are arranged close to the axle, then the connection structure between air springs and axle becomes lighter and simpler, but the installation space for vibration dampers becomes unavailable requiring complex and heavy connection structures
Solution Approach 1:
The patent combines the vibration damper connection function with the stabilizer arrangement structure. The stabilizer arrangement, which already exists for roll stabilization, is extended transversely beyond the longitudinal section to provide mounting points for vibration dampers. This merging eliminates the need for separate dedicated connection structures for vibration dampers, thereby reducing overall weight and complexity while maintaining both stabilization functions.
2Area of stationary object
If vibration dampers are connected via complex connection structures, then space constraints are addressed, but weight increases and assembly complexity increases
Solution Approach 1:
The stabilizer arrangement serves multiple functions: it provides roll stabilization and simultaneously serves as the mounting structure for vibration dampers. The transverse extension of the stabilizer arrangement creates universal mounting points that simplify the connection of vibration dampers, enabling straightforward assembly with standard fastening methods rather than requiring complex specialized connection structures.
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 solution provides a kinematically favorable and lightweight connection of vibration dampers, eliminating the need for complex structures and ensuring adequate space for vibration dampers, even in space-sensitive vehicles, while maintaining effective roll stabilization and vertical excitation inhibition.
Implementation Method 1
at least one pair of laterally arranged vibration dampers per axle, which inhibit vertical excitations of the axle
Implementation Method 2
The axle is sprung via air springs
Implementation Method 3
Two air springs are provided for each axle on each transverse side of the vehicle
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Chassis system (10), in particular for utility vehicles (1), comprising at least one axle (3) that extends transversely to the direction of travel and supports wheels (4), the movement of the axle (3) being damped by shock absorbers (11) that have end portions (15), further comprising at least one stabilizer assembly (12) consisting of two longitudinal sections (13) and a transverse section (14) which interconnects the two longitudinal sections (13), characterized in that one end portion (15) of the shock absorber (11) is retained directly on and connected to the stabilizer assembly (12) at an extension (16, 17) of the transverse section (14) beyond the longitudinal section (13).