Dash Panel Floor Panel Joint Reinforcement
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Solution Overview
Problem
The existing vehicle front structure with a dash panel, floor panel, and inner torque has poor workability and requires strengthened joint surfaces during assembly.
Innovation Solution
A vehicle front structure design where the dash panel includes a contact portion extending in the vehicle width direction and concave portions formed integrally below the floor panel, which serve as inner torques to reinforce the floor panel, simplifying the assembly process and increasing joint strength by reducing the number of parts and forming a reinforcing frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the vehicle front structure includes three parts (dash panel, floor panel, and inner torque), then the floor panel can be reinforced, but the workability is poor and joint surfaces need to be further strengthened
Solution Approach 1:
The inner torque and contact portion are merged into a single integrated component formed as one piece. The contact portion extends in the vehicle width direction and includes concave portions that serve as the inner torque, eliminating the need for separate inner torque parts while maintaining reinforcement functionality.
Solution Approach 2:
The contact portion serves multiple functions: it contacts the front end of the floor panel, provides reinforcement through integrated concave portions acting as inner torque, and eliminates the need for separate joining operations. This multi-functional design simplifies the overall structure while maintaining strength.
2Strength
If the vehicle front structure includes three parts (dash panel, floor panel, and inner torque), then the floor panel can be reinforced, but the number of parts increases and assembly complexity increases
Solution Approach 1:
The inner torque and contact portion are merged into a single integrated component formed as one piece. The contact portion extends in the vehicle width direction and includes concave portions that serve as the inner torque, eliminating the need for separate inner torque parts while maintaining reinforcement functionality.
3Strength
If the vehicle front structure includes three parts (dash panel, floor panel, and inner torque), then the floor panel can be reinforced, but the joining process requires additional strengthening measures
Solution Approach 1:
The inner torque and contact portion are merged into a single integrated component formed as one piece. The contact portion extends in the vehicle width direction and includes concave portions that serve as the inner torque, eliminating the need for separate inner torque parts while maintaining reinforcement functionality.
Solution Approach 2:
The concave portions are pre-formed as integral parts of the contact portion during manufacturing. This preliminary formation of reinforcement structures eliminates the need for additional strengthening measures during the joining process, as the reinforcement is already built into the structure.
Data Source
AI summary
A vehicle front structure includes a dash panel that is located at a front portion of a vehicle and a floor panel that extends in a longitudinal direction of the vehicle. The dash panel includes a contact portion which extends in the vehicle width direction and with which a front end portion of the floor panel comes into contact, and concave portions that are located below the floor panel and opened upward in a side view of the vehicle body. The contact portion is formed integrally with the concave portions. Accordingly, the vehicle front structure may be easily worked and joining among a dash panel, a floor panel, and an inner panel in the related art may be changed to joining between two parts, that is, the dash panel and the floor panel, so that it may be possible to strengthen the joints between the dash panel and the floor panel.