Motor Vehicle Floor Reinforcing System for Side Pole Impact Protection
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Solution Overview
Problem
Current reinforcing systems for motor vehicle floors are inefficient in absorbing lateral impacts against narrow surfaces, such as poles, and fail to adequately protect electric batteries during side pole impacts.
Innovation Solution
A reinforcing system comprising an upper plate with an impact absorption zone and a rigid reinforcing zone, where the absorption zone is designed to deform under impact and the reinforcing zone transmits compressive forces, protecting elements laterally and ensuring the structural integrity of the floor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional diagonal reinforcements and side members are used, then lateral protection during side barrier impacts is improved, but protection during side pole impacts remains insufficient
Solution Approach 1:
The reinforcing system is divided into distinct functional zones: an impact absorption zone configured to deform under lateral impact, and a rigid reinforcing zone that transmits compressive forces. This segmentation allows each zone to specialize in specific impact response, enabling effective protection against both side barrier and side pole impacts.
Solution Approach 2:
Different regions of the reinforcing system are assigned different mechanical properties: the absorption zone uses deformable materials with lower rigidity to dissipate impact energy, while the reinforcing zone uses rigid materials with high strength to transmit forces. This local differentiation of material properties optimizes protection against various impact scenarios.
2Strength
If two cross-members are used to increase floor rigidity during side pole impact, then floor rigidity is improved, but energy-absorbing capacity becomes insufficient to protect electric batteries
Solution Approach 1:
The system separates the functions of energy absorption and force transmission into distinct zones. The absorption zone is specifically designed to deform and dissipate impact energy, while the reinforcing zone transmits remaining forces to the floor structure. This ensures both energy absorption and floor rigidity are addressed simultaneously.
Solution Approach 2:
The reinforcing system combines materials with different mechanical characteristics: deformable energy-absorbing materials in the absorption zone and rigid high-strength materials in the reinforcing zone. This composite approach enables the system to both absorb impact energy and maintain floor rigidity, protecting electric batteries effectively.
3Reliability
If additional reinforcing structures are added to protect against side pole impact, then protection capability is improved, but vehicle compactness and lightness are compromised
Solution Approach 1:
The absorption zone and reinforcing zone are merged into a single integrated reinforcing system that functions as one cohesive structure. This integration eliminates the need for separate, additional reinforcing structures, maintaining vehicle compactness while providing effective side pole impact protection through the combined energy absorption and force transmission functions.
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 system effectively absorbs and distributes forces during side pole impacts, protecting electric batteries and maintaining the structural integrity of the motor vehicle floor while being compact, lightweight, and cost-effective.
Implementation Method 1
the absorption zone being configured to be able to deform with constant force under the effect of an impact
Implementation Method 2
configured to be able to absorb an impact
Implementation Method 3
the reinforcing zone being configured to be able to transmit a compressive force consecutive to the impact
Data Source
AI summary
The invention relates to a reinforcing system (5) for a motor vehicle floor, the reinforcing system (5) comprising an upper plate comprising members for fastening to the floor, an impact absorption zone (10) and a reinforcing zone (11). The absorption zone (10) is secured to the upper plate and is configured to be able to deform with constant force under the effect of an impact. The reinforcing zone (11) is rigid, is configured to be able to transmit a compressive force subsequent to the impact, is secured to the upper plate and extends longitudinally in the continuation of the absorption zone (10).