Segmented Suspension Tower for Vehicle Frame Energy Absorption
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Solution Overview
Problem
The existing suspension tower structure attached to the front part of the main frame in vehicles hinders the compression deformation of the main frame during a frontal collision, thereby reducing the absorption of collision energy.
Innovation Solution
A suspension tower structure with a front leg part and a rear leg part separated in the vehicle length direction is attached to the main frame, allowing for easier compression deformation by creating a weak part between them, and reinforced with inner and outer panels to enhance stiffness and attachment strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the suspension tower is attached to the main frame at the front part, then the suspension tower can be securely supported, but the main frame cannot be compressed and deformed in the vehicle length direction upon frontal collision, reducing collision energy absorption
Solution Approach 1:
The lower part of the suspension tower is divided into a front leg part and a rear leg part that are separated in the vehicle length direction. This segmentation creates a gap between the attachment points on the main frame, allowing the main frame to compress and deform during frontal collision while still providing secure support for the suspension tower.
2Stability of the object's composition
If the entirety of the lower part of the suspension tower is attached to the main frame, then the suspension tower is stably supported, but the main frame deformation is prevented, reducing energy absorption capability
Solution Approach 1:
The lower part of the suspension tower is segmented into front and rear leg parts with a gap between them, allowing the main frame to deform during collision while maintaining suspension tower stability through the distributed attachment points.
Solution Approach 2:
The attachment structure is designed with different characteristics at different locations: the front and rear leg parts are attached to the main frame at separated positions, creating local attachment points that provide stability while allowing overall frame deformation for energy absorption.
Data Source
AI summary
In a suspension tower structure for a vehicle (1) including a chassis frame (9) to which suspension towers (101) are attached, a front leg part (101a) and a rear leg part (101b) branched to be separated from each other in a vehicle length direction are provided in a lower part of the suspension tower (101), and lower parts of the front leg part (101a) and the rear leg part (101b) are attached to a main frame (10) of the chassis frame (9) extending in the vehicle length direction so as to be separated from each other in the vehicle length direction.