Chassis Component with Elastically Deformable Zone for Sensor Protection
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Solution Overview
Problem
Existing chassis components with integrated sensor devices are prone to damage and interference from tensile or compressive loading, which can disrupt the accuracy of sensor readings, particularly in stabilizer arrangements like torsion-beam axles used for roll stabilization in vehicles.
Innovation Solution
Incorporating an elastically deformable zone in the connecting section of the chassis component, which allows for controlled deformation in specific directions, thereby absorbing and compensating for unwanted stress while maintaining rigidity in measurement directions, ensuring the sensor device's accuracy and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the chassis component is made rigid to ensure structural stability, then structural stability is improved, but the component becomes susceptible to damage from tensile or compressive loading
Solution Approach 1:
The connecting section is divided into a first section and a second section with an elastically deformable zone between them. This segmentation allows the first section to maintain rigidity for structural stability while the second section provides elastic deformability to absorb tensile and compressive loads, preventing damage to the ball joint and sensor device.
Solution Approach 2:
Different zones of the connecting section are assigned different mechanical properties: the first section is designed with high rigidity to ensure structural stability, while the second section incorporates an elastically deformable zone that can flex under load. This local differentiation of properties resolves the contradiction between overall structural stability and localized damage resistance.
2Measurement precision
If the connecting section is made rigid to maintain measurement accuracy, then measurement precision is improved, but the sensor device becomes vulnerable to disturbance from tensile or compressive loading
Solution Approach 1:
The elastically deformable zone acts as an intermediary element between the rigid first section and the ball joint assembly containing the sensor device. This intermediary absorbs and isolates tensile and compressive disturbances, preventing them from reaching the sensor device while allowing the rigid first section to maintain measurement precision through its stable geometry.
Solution Approach 2:
The harmful elastic deformations are extracted and isolated into a dedicated second section with an elastically deformable zone, separate from the first section that contains the measurement functionality. This extraction ensures that measurement precision is maintained in the first section while the second section handles the absorption of loading disturbances.
3Reliability
If the connecting section is designed to be flexible to absorb stress, then damage resistance is improved, but structural stability and measurement accuracy deteriorate
Solution Approach 1:
The connecting section is segmented into two distinct sections: the first section maintains rigidity to preserve structural stability, while the second section incorporates elastic deformability for damage resistance. This segmentation allows both contradictory requirements to be satisfied in different parts of the same component.
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 elastically deformable zone effectively mitigates damage and interference, ensuring accurate sensor readings and reliable data collection, particularly for height level information, while maintaining structural integrity and reducing disturbances from unwanted elastic behavior.
Implementation Method 1
the connecting section (19) has an elastically deformable zone (20)
Implementation Method 2
The first sensor element can be in the form of a sensor which is sensitive to magnetic fields, in particular a Hall sensor or a 2D-rotation Hall sensor
Data Source
AI summary
A chassis component (16), with a first end section (17) and a second end section (18) and a connecting section (19) is arranged between the two end sections (17, 18). At least one ball joint (21) is associated with one of the two end sections (17, 18), and a sensor device (22) is associated with the ball joint (21). A first sensor element (23) of the sensor device (22) is arranged on the end section (18) that has the ball joint (21) and a second sensor element (24) is arranged on an inner joint component (25) of the ball joint (21). In order to avoid damage to the chassis component (16) and/or a disturbance-inducing factor for the sensor device (22) caused by a tensile or compressive load, the connecting section (19) has an elastically deformable zone (20) preferably in the longitudinal and/or the transverse direction of the vehicle.