Vehicle Battery Protective Layers for Impact Damage Detection
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Solution Overview
Problem
Existing technologies lack an effective and accurate method to predict and assess damage to vehicle battery arrangements, particularly in the event of mechanical impacts, which can lead to potential safety risks.
Innovation Solution
A protective arrangement comprising multiple layers with acceleration sensors and a compressible layer for decoupling, allowing for precise detection of damage through sensor signals from both layers, enabling a comprehensive evaluation of the damage's extent and type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single layer protective arrangement is used, then the structure is simple, but the damage detection accuracy is insufficient
Solution Approach 1:
The protective arrangement is divided into multiple layers (first layer, second layer, third layer) with acceleration sensors distributed across different layers. This segmentation allows independent measurement at each layer, enabling more accurate damage detection through comparison of sensor data while maintaining modular simplicity in each individual layer.
Solution Approach 2:
The patent transitions from a single-layer to a multi-layer protective arrangement, adding the dimension of layer depth. This dimensional expansion allows sensors to detect damage at different depths and positions, significantly improving damage detection accuracy while the layered structure itself provides a systematic organization that manages complexity.
2Measurement precision
If acceleration sensors are placed in contact with both layers, then damage detection capability is improved, but the protective arrangement complexity increases
Solution Approach 1:
Acceleration sensors are segmented and distributed across multiple layers rather than concentrated in one location. This segmentation allows each sensor to independently monitor its local region, improving overall damage detection capability while the distributed arrangement avoids the complexity of a single complex sensor system.
Solution Approach 2:
The third layer acts as an intermediary between the first and second layers, with its compressible nature mediating the mechanical coupling. This intermediary structure allows sensors in different layers to detect damage independently while the third layer provides a systematic way to manage the mechanical interactions, reducing overall system complexity.
3Measurement precision
If the third layer is made compressible, then the decoupling effect is improved, but the structural stability may be reduced
Solution Approach 1:
Only the third layer is made compressible while the first and second layers maintain their structural stability. This local application of compressibility to the specific third layer provides the needed decoupling effect for diagnostic purposes without compromising the overall structural integrity of the protective arrangement.
Solution Approach 2:
The compressible third layer serves as a mechanical intermediary that decouples the first and second layers. This intermediary structure allows independent movement and deformation of the outer layers during impact, improving diagnostic relevance by enabling independent sensor measurements while the third layer's elasticity maintains overall structural stability.
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
Accurately predicts and categorizes the damage to the battery arrangement, enhancing safety by providing timely interventions and reducing the risk of further damage or hazards.
Implementation Method 1
the third layer has a layer volume that can be reduced under the effect of pressure
Implementation Method 2
acceleration sensors, wherein the third layer has a layer volume that can be reduced under the effect of pressure, wherein the acceleration sensors include at least one first acceleration sensor and at least one second acceleration sensor
Data Source
AI summary
An apparatus includes a battery arrangement and a protective arrangement. The protective arrangement includes a first layer, a second layer, a third layer disposed between the first layer and the second layer, and acceleration sensors. The third layer has a layer volume that can be reduced under the effect of pressure. The acceleration sensors include at least one first acceleration sensor and at least one second acceleration sensor. The least one first acceleration sensor is disposed in contact with the first layer and is configured to generate and output a first sensor signal as a function of the acceleration and wherein the at least one second acceleration sensor is disposed in contact with the second layer and is configured to generate and output a second sensor signal (SIG2) as a function of the acceleration in order to enable detection of damage to the protective arrangement.