Axle Control Element with Nested Torsion Spring
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Solution Overview
Problem
Conventional axle control elements face challenges in providing variable installation possibilities with good functionality while maintaining low space requirements, as they often require large installation spaces and are not adaptable to densely packed suspension regions.
Innovation Solution
The axle control element features a torsion spring system with a nested arrangement of a torsion spring rod and tube, spatially separated from the actuator, allowing flexible arrangement through varying lever lengths and angular orientations, and includes a drive and output lever connected via couplings to the wheel control element, enabling unobstructed installation in compact spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the actuator is arranged concentrically around the torsion spring system, then the integration is compact, but the radial installation space becomes too large
Solution Approach 1:
The patent transitions from a radial/concentric arrangement to a spatial separation where the actuator is positioned at a distance from the torsion spring system. The drive lever acts as a connecting element that transmits motion across this spatial separation, effectively moving the system from a two-dimensional radial layout to a three-dimensional configuration that utilizes longitudinal space instead of radial space.
Solution Approach 2:
The system is divided into distinct functional modules: the torsion spring system (with nested rod and tube), the actuator unit, and the connecting drive lever. This segmentation allows each component to be optimized independently and positioned flexibly within the available space, resolving the conflict between integration and space requirements.
2Device complexity
If conventional axle control elements are used, then the structure is simple, but the installation space requirement is too large for densely packed suspension regions
Solution Approach 1:
The torsion spring system employs a nested arrangement where the torsion spring rod is positioned inside the torsion spring tube. This nesting reduces the overall volume of the spring system without compromising its structural simplicity or functionality, allowing it to fit into compact suspension regions while maintaining ease of manufacture.
Solution Approach 2:
The system utilizes the longitudinal dimension by spacing the actuator away from the torsion spring system and connecting them via a drive lever. This approach converts radial space requirements into longitudinal space utilization, enabling installation in densely packed suspension regions where radial space is limited but longitudinal space may be available.
3Length of stationary object
If the torsion spring system uses a nested arrangement of rod and tube, then the longitudinal installation space is reduced, but the manufacturing complexity increases
Solution Approach 1:
The nested arrangement of the torsion spring rod within the torsion spring tube is designed to be straightforward, with the rod simply positioned inside the tube and both components connected to the drive lever. This nesting provides a compact solution that reduces longitudinal space while maintaining reasonable manufacturing simplicity through standard assembly procedures.
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 allows for flexible and space-efficient installation of the axle control element in motor vehicles, providing unobstructed spaces in densely packed suspension regions and enabling effective force transmission and spring energy absorption, supporting vehicle stability and load management.
Implementation Method 1
a torsion spring system constructed as an accumulator spring which is, on one hand, connected via a rotating arm to a wheel control element and, on the other hand, fixedly supported on the vehicle body via a controllable actuator. The torsion spring system includes at least one torsional tube and at least one torsion spring rod in a nested arrangement
Implementation Method 2
The actuator includes an actuator unit spaced from the spring system and fixedly mounted on the vehicle body and a drive lever which is connected to the actuator unit and controlled for pivoting. The drive lever is connected to a torsion spring tube
Implementation Method 3
The torsion spring system includes at least one torsional tube and at least one torsion spring rod in a nested arrangement, thereby substantially reducing the required longitudinal installation space for the torsion spring system
Data Source
AI summary
An axle control element of a motor vehicle has a torsion spring system connected to a wheel control element via a rotary spring arm and fixedly supported on the vehicle body via a controllable actuator. The torsion spring system has a torsion spring rod nested inside a torsion spring tube. An actuator unit is spaced apart from the torsion spring system and is fixed on the vehicle body and a pivotally controllable drive lever is connected to the actuator unit. The drive lever is connected to a torsion spring tube, and an output lever is connected to a torsion spring rod and directly or indirectly via a coupling to the wheel control element. Alternatively, the drive lever is connected to a torsion spring rod, and the output lever is connected to a torsion spring tube and directly or indirectly via a coupling to the wheel control element.