Vehicle Lower Structure With Segmented Guided Deflector Panels
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Solution Overview
Problem
Existing vehicle lower structures struggle to balance aerodynamic performance with the arrangement of parts in the lower portion of the vehicle body, necessitating a design that improves airflow while maintaining structural integrity and avoiding detachment of components.
Innovation Solution
A vehicle lower structure featuring a deflector panel divided into a front and rear panel, rotatably and slidably arranged with guide members and covering portions to guide airflow and prevent detachment, enhancing aerodynamic performance and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a deflector panel is added to improve aerodynamic performance, then airflow control is improved, but the complexity of the lower structure increases
Solution Approach 1:
The deflector panel is divided into a front deflector panel and a rear deflector panel that can move independently. This segmentation allows each panel to be optimized for specific airflow control functions while simplifying the overall structure by enabling independent deployment and control of each segment, reducing the complexity of controlling a single large panel.
Solution Approach 2:
The rear deflector panel is designed to be movable between a stored position and an unfolded position, transforming the static lower structure into a dynamic system. This allows the structure to adapt to different driving conditions, improving aerodynamic performance only when needed, while maintaining simplicity during normal operation.
2Stability of the object's composition
If guide members are added to the rear deflector panel, then stability is improved, but the device complexity increases
Solution Approach 1:
The guide members are arranged to slide within guide grooves formed on the vehicle body, with the rear deflector panel nested within the space defined by the guide members and covering portions. This nesting arrangement provides stability and guidance without requiring additional external support structures, minimizing added complexity.
Solution Approach 2:
The covering portions are positioned to cover the guide members, acting as intermediaries that protect the guide members from external elements while allowing the rear deflector panel to slide freely. This arrangement stabilizes the guide members and protects them without requiring complex housing or enclosure structures.
3Adaptability or versatility
If the rear deflector panel is made movable, then adaptability is improved, but the reliability of the structure decreases
Solution Approach 1:
The guide grooves are pre-formed on the vehicle body to define the exact path and limits of the rear deflector panel's movement. This preliminary preparation ensures that the panel can only move within predetermined safe boundaries, preventing unintended movements that could compromise structural reliability while maintaining adaptability for different positions.
Solution Approach 2:
The covering portions are positioned to cover the guide members and provide protective coverage throughout the range of motion. This beforehand protection ensures that even when the panel is in motion or in extreme positions, the guide members remain protected and the structure maintains its reliability, preventing damage from external elements or unintended movements.
Data Source
AI summary
A vehicle lower structure includes a deflector panel provided on a vehicle body of a vehicle and movable between a stored position covering a lower portion of the vehicle body and an unfolded position protruding downwards. The deflector panel includes a front deflector panel and a rear deflector panel. The front deflector panel is rotatably arranged on the vehicle body along a first rotation axis with a front end thereof. The rear deflector panel is rotatably arranged on a rear end of the front deflector panel along a second rotation axis with a front end thereof and is rotatably and slidably arranged on the vehicle body along a third rotation axis in a vehicle front-rear direction with a rear end thereof. The rear deflector panel is provided with a guide member protruding upwards. The guide member is covered from above by a covering portion formed on the vehicle body.