Vehicle Sensor Mount With Linear Evasive Motion and Reset
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Solution Overview
Problem
Existing sensor mounting solutions on vehicle structures do not provide a sufficiently rigid connection and predictable evasive movements during collisions, which can lead to sensor malfunction and increased risk of injury.
Innovation Solution
A sensor mount with defined evasive movements, primarily linear along a single axis, incorporating a reset element that preloads the sensor into an initial position, allowing it to return to its original position after a collision, thus maintaining operational integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor is mounted close to the external contour of the vehicle, then the sensor can detect environmental information more effectively, but the sensor becomes vulnerable to collision forces and may cause injury to pedestrians
Solution Approach 1:
The mounting system allows the sensor to move dynamically during collisions rather than remaining fixed. The sensor can perform evasive movements along a defined linear path when collision forces are applied, transitioning from a static mounting to a dynamic response system that reduces injury risk while maintaining detection capability
Solution Approach 2:
The mounting system is divided into a first subassembly (attached to vehicle structure) and a second subassembly (holding the sensor), connected by a restoring element. This segmentation allows the sensor-holding portion to move independently relative to the vehicle structure during collisions, enabling evasive movements while maintaining overall system functionality
2Object-affected harmful factors
If deformation elements are used to allow evasive movements during collision, then the sensor can reduce injury risk, but the sensor position may permanently change and require replacement or recalibration
Solution Approach 1:
The system changes the physical state of the mounting connection during collision - transitioning from a rigid fixed position to a controlled movable position along a defined linear path. The restoring element allows temporary parameter change (position displacement) during collision while ensuring return to the original parameters (initial position) after collision, maintaining sensor operational integrity
Solution Approach 2:
The restoring element automatically returns the sensor to its initial position after collision without requiring external intervention. The system self-corrects the sensor position by exerting restoring forces that push the sensor back to its calibrated position, eliminating the need for manual replacement or recalibration
3Object-affected harmful factors
If the sensor mounting allows significant movement during collision, then injury risk is reduced, but the connection rigidity decreases and sensor position predictability deteriorates
Solution Approach 1:
The mounting system exhibits asymmetric behavior under different loading conditions: during normal operation, the sensor is held in a stable fixed position by the restoring element; during collision, the system allows controlled movement along a defined linear path. This asymmetric response provides both position stability and collision force absorption
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 solution enables defined evasive movements of the sensor during collisions, reducing the risk of injury and ensuring the sensor remains operational by maintaining its position within the vehicle structure.
Implementation Method 1
at least one restoring element (27), in particular an elastic restoring element, wherein the restoring element is adapted to exert restoring forces (R) on the second subassembly (26) in accordance with the relative movement in order to urge it into an initial position
Data Source
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AI summary
The invention relates to a mounting (12) for a sensor (18) on a vehicle structure (16), comprising: - a first sub-assembly (24) that can be fastened to the vehicle structure (16); - a second sub-assembly (26), to which the sensor (18) can be fastened; and - at least one restoring element (27); wherein the first and second sub-assemblies (24, 26) can move relative to one another and the restoring element (27) is designed to exert restoring forces (R) on the second sub-assembly (26) in accordance with the relative movement, in order to force the second sub-assembly into an initial position.