Vehicle Sensor Mounting With Restoring Element for Collision Evasion
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Solution Overview
Problem
Current sensor mountings on vehicles are susceptible to deformation during collisions, leading to permanent changes in sensor position and functionality, which complicates signal evaluation and increases the risk of injury.
Innovation Solution
A mounting system with defined evasive movements, utilizing a restoring element to preload and return the sensor to its initial position, allowing for linear movements along a defined axis, ensuring the sensor remains functional post-collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor is positioned close to the outer contour of the vehicle, then the detection capability is improved, but the sensor becomes susceptible to collision forces and may cause injury
Solution Approach 1:
The mounting system transitions from a static rigid connection to a dynamic system with defined movement capabilities. The sensor mounting is designed to allow controlled linear movements along a specific axis when collision forces act on it, enabling the sensor to move away from the outer contour during collisions while maintaining its detection function.
2Object-affected harmful factors
If deformation elements are used to absorb collision energy, then the sensor safety is improved, but the sensor functionality is lost due to permanent position changes
Solution Approach 1:
The system incorporates a restoring element that is pre-loaded to provide a restoring force. This element acts as a cushion that can be compressed during collisions to absorb energy, while simultaneously being designed to automatically restore the sensor to its initial position after the collision, preventing permanent position changes.
Solution Approach 2:
The mounting system changes the physical state of the sensor position from fixed to temporarily variable during collisions, then restores it to the original state. The restoring element modifies the position parameter dynamically - allowing displacement during impact but ensuring return to the calibrated position afterward, maintaining detection field alignment.
3Measurement precision
If the sensor mounting is made rigid to maintain position, then the detection accuracy is preserved, but the sensor cannot move away during collisions increasing injury risk
Solution Approach 1:
The mounting system is designed with differential rigidity - rigid in the normal operating state to maintain detection accuracy, but capable of controlled movement during collisions. The restoring element provides the necessary elasticity to allow collision-induced movement while the guide structure maintains positional precision during normal operation.
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 system reduces the risk of injury and maintains sensor functionality by allowing defined evasive movements, enabling accurate signal evaluation and recalibration with minimal effort.
Implementation Method 1
at least one restoring element; wherein the first and second sub-assemblies can move relative to one another, and the restoring element is designed to exert restoring forces on the second sub-assembly in accordance with the relative movement, in order to force the second sub-assembly into an initial position
Data Source
AI summary
The disclosure relates to a mounting for a sensor on a vehicle structure. In some embodiments, the mounting comprises a first sub-assembly that can be fastened to the vehicle structure; a second sub-assembly, to which the sensor can be fastened; and at least one restoring element; wherein the first and second sub-assemblies can move relative to one another and the restoring element is designed to exert restoring forces on the second sub-assembly in accordance with the relative movement, in order to force the second sub-assembly into an initial position.