Rollover Protection Deformation Element Absorbing Impulse Forces
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Solution Overview
Problem
Existing rollover protection systems for motor vehicles do not effectively absorb impulse forces, leading to unnecessary deformation of the profiled struts and latching devices, which can compromise the stability and support of the vehicle body during impact.
Innovation Solution
A rollover protection system featuring a deformation crossbar with a profiled strut and a deformation element designed to match the inner contour of the vehicle, which absorbs impulse forces and minimizes deformation by using a strut profile deformation element with an enlarged impact surface, hollow body structure, and inclined walls to distribute force effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a deformation element is added to absorb impulse forces, then force absorption capability is improved, but device complexity increases
Solution Approach 1:
The deformation element is integrated directly into the profiled strut structure, merging the support function and deformation absorption function into a single unified component. This eliminates the need for separate deformation elements while maintaining force absorption capability, thus resolving the contradiction between strength improvement and device complexity.
Solution Approach 2:
The profiled strut incorporates deformation capability through specific geometric parameters and material properties. The strut is designed with controlled deformation characteristics that allow it to absorb impulse forces while maintaining structural integrity, achieving force absorption without adding complex separate components.
2Stability of the object's composition
If the deformation element matches the inner contour of the vehicle, then stability support is improved, but manufacturing precision requirements increase
Solution Approach 1:
The profiled strut is designed with specific local geometric features at the deformation location that provide contour matching capability. Rather than requiring the entire strut to precisely match the vehicle inner contour, only specific regions are optimized for local contact and stability support, reducing overall manufacturing precision requirements while maintaining stability benefits.
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 significantly enhances impulse force absorption, maintains the original stability of the vehicle body, and reduces deformation of the profiled strut and latching device, while being cost-effective and adaptable to various vehicle body shapes.
Implementation Method 1
The deformation element is configured to absorb an impulse force and is provided for protecting the profiled strut and a latching device
Implementation Method 2
The deformation element has an impact surface at a first outer surface facing away from the profiled strut and is designed in the form of a strut profile extending in the direction of a longitudinal axis of the motor vehicle
Data Source
AI summary
A rollover protection system for a motor vehicle has a deformation crossbar (2) with a profiled strut (3) extending along a vertical axis (6) of the vehicle, and a deformation element (4) is held at a first end (9) of the profiled strut (3). The first end (9) faces away from a floor of the motor vehicle. The deformation element (4) has a first outer surface (11) that faces away from the profiled strut (3) to define an impact surface, and the deformation element (4) is designed as a strut profile extending in the direction of a longitudinal axis (8) of the motor vehicle. The profiled strut (3) has a contact surface (10) that faces the deformation element (4) and on which the deformation element (4) is held. The deformation element (4) is designed to at least partially match an inner contour of the motor vehicle.