Vehicle Seat Bracket Structure for Side-Impact Energy Absorption
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Solution Overview
Problem
Existing vehicle-seat-supporting structures face challenges in efficiently absorbing impact loads during side-on collisions, leading to seat bracket deformation hindrance and potential twisting of the floor panel, which can damage joints.
Innovation Solution
A vehicle-seat-supporting structure with seat brackets comprising a supporting member and a collapsible member, where the collapsible member includes a collapsing region that deforms inward to absorb impact loads, reducing the likelihood of seat bracket tilting and floor panel twisting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the strength of the seat brackets is increased to prevent deformation, then the structural strength is improved, but the ability to absorb collision energy is reduced
Solution Approach 1:
The seat bracket is divided into two functional segments: a supporting member with high strength for structural support, and a collapsible member with lower strength for energy absorption. This segmentation allows each part to perform its designated function optimally without compromising the other.
Solution Approach 2:
Different parts of the seat bracket have different strength characteristics. The supporting member maintains high strength to prevent tilting, while the collapsible member has reduced strength in specific regions (collapsing portions) to enable controlled deformation and energy absorption during side-on collisions.
2Stability of the object's composition
If the strength of the seat brackets is increased to maintain structural integrity, then the structural stability is improved, but the floor panel twisting is increased
Solution Approach 1:
The seat bracket is segmented into a supporting member that maintains structural integrity and a collapsible member that absorbs energy through controlled deformation. This prevents the entire bracket from tilting and causing floor panel twisting while maintaining overall structural stability.
Solution Approach 2:
The strength parameters of the seat bracket are varied spatially: the supporting member has high strength parameters to maintain stability, while the collapsible member has reduced strength parameters in specific regions to allow controlled deformation and prevent harmful floor panel twisting during collisions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The structure effectively absorbs impact loads by controlling deformation and preventing seat bracket tilting, thereby minimizing floor panel twisting and joint damage, while allowing for increased seat bracket height and versatility across vehicle models.
Implementation Method 1
The collapsible member includes a collapsing region. The collapsing region is configured to undergo collapsing deformation toward an inner side in the vehicle widthwise direction when receiving an impact load from the side sill
Data Source
AI summary
A vehicle-seat-supporting structure includes a floor panel, a side sill, front and rear floor cross members, and seat brackets. The side sill is disposed on an outer side of a vehicle body in a vehicle widthwise direction. The floor cross members are joined to the floor panel, extend in the vehicle widthwise direction, and each have one end facing the side sill with a gap in between. The seat brackets are joined to the respective one ends of the floor cross members and to the side sill. The seat brackets each include a supporting member joined to the floor cross member and supporting a seat, and a collapsible member interposed between and is joined to the side sill and the supporting member. The collapsible member includes a collapsing region that collapses inward in the vehicle widthwise direction when receiving an impact load from the side sill.