Front Vehicle Body Reinforcing Structure for Collision Energy Dispersion
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Solution Overview
Problem
Current front vehicle body structures are inadequate in protecting occupants and minimizing collision damage during head-on and small overlap collisions, as they fail to effectively distribute impact energy from collisions with weak rigidity areas.
Innovation Solution
A front vehicle body reinforcing structure that connects the front side member and fender apron member with a sub-frame mounting member, forming a three-dimensional box structure to absorb and disperse impact energy, with a skewed orientation and mounting device to enhance load distribution and structural rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the front side member and fender apron member are connected with a sub-frame mounting member forming a three-dimensional box structure, then collision stability and load distribution are improved, but device complexity increases
Solution Approach 1:
The sub-frame mounting member integrates multiple functions: it connects the front side member and fender apron member, provides sub-frame mounting capability, and forms a three-dimensional box structure with them. This merging of functions into a single component achieves improved collision stability without proportionally increasing device complexity.
Solution Approach 2:
The invention transitions from traditional planar connection structures to a three-dimensional box structure formed by the front side member, fender apron member, and sub-frame mounting member. This dimensional change creates a more rigid spatial framework that significantly improves load distribution and collision stability.
2Strength
If the front end portion of the fender apron member has a skewed extending direction relative to the front side member, then load distribution is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The fender apron member is designed with an asymmetric skewed extending direction relative to the front side member, creating an optimized load distribution pathway. This asymmetric geometry directs collision forces along the most effective structural paths, enhancing overall strength and load-bearing capacity.
3Object-affected harmful factors
If the three-dimensional box structure is formed to absorb impact energy, then collision damage is reduced, but weight of the structure increases
Solution Approach 1:
The three-dimensional box structure is pre-configured to absorb and dissipate impact energy through its spatial framework. The closed-box geometry provides inherent energy absorption capabilities by distributing collision forces throughout the structure before they reach critical components, reducing collision damage proactively.
Data Source
AI summary
A front vehicle body reinforcing structure may include a sub-frame mounting member combined to a lower side of a front end portion of the front side member and to an inside of a front end portion in a width direction of the fender apron member, wherein an inside surface in a width direction of a vehicle body of the front end portion of the fender apron member is connected to an outside surface in a width direction of the vehicle body of the front side member and to an outside surface in a width direction of the vehicle body of the sub-frame mounting member.