Front Pillar Reinforcement Direct Connection for Force Transmission
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Solution Overview
Problem
Existing motor vehicle body designs experience inefficiencies in force transmission during frontal impacts due to indirect connections between front reinforcements and pillars, leading to potential breaks in force transmission and suboptimal energy absorption.
Innovation Solution
A direct connection between the front reinforcement and the front pillar reinforcement is established, with a cutout in the front pillar reinforcement to house the rear end of the front reinforcement, allowing for increased volume and direct force transmission, and optional U- or Ω-shaped profiles with adjustable thickness for enhanced mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If front reinforcement is fixed to intermediate elements of the body which are fixed to front pillar reinforcements, then the structure is easier to manufacture, but the transmission of forces from front reinforcement to front pillar reinforcement is indirect creating a break in force transmission
Solution Approach 1:
The patent merges the front reinforcement and front pillar reinforcement into a single integrated structure where the front reinforcement is directly fixed to the front pillar reinforcement. This eliminates intermediate elements and creates a continuous force transmission path, resolving the contradiction by combining what were previously separate components into one unified structure that provides both manufacturability and reliable force transmission
2Quantity of substance
If U or Ω shaped profile with hollow structure is used for front pillar reinforcement, then the structure uses less material, but it is not suitable for allowing good transmission of forces from front reinforcement to doors
Solution Approach 1:
The patent transitions from a hollow U or Ω shaped profile to a solid or partially solid profile structure. By changing the dimensional characteristics from hollow to solid, the structure gains improved force transmission capabilities while still maintaining material efficiency through optimized cross-sectional geometry and direct force paths
3Reliability
If front reinforcement is positioned to optimize force transmission, then force transmission is improved, but it may become visible from outside harming vehicle aesthetics
Solution Approach 1:
The patent nests the front reinforcement within the front pillar reinforcement structure. The front reinforcement is positioned inside or within the structural framework of the front pillar reinforcement, allowing optimal force transmission positioning while being concealed by the outer profile, thus maintaining vehicle aesthetics without compromising structural performance
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The body has a front hinge pillar equipped with a reinforcement (12) comprising an external face and an internal face, which are turned respectively towards exterior and interior of the body. A rear zone (23) is turned towards front of a frame (3) of a lateral door. A front reinforcement (15) has a front end (16) connected to a front zone of the body. The front reinforcement has a rear end (17) fixed directly on the rear zone of the reinforcement, from a side of an inner surface of the reinforcement.