Integrated Arcuate Bumper Beam for Vehicle Front Structure
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Solution Overview
Problem
Current front bumper arrangements in vehicles are complex and costly due to the need for multiple components to meet various crash and pedestrian impact requirements, leading to increased assembly processes and weight.
Innovation Solution
A simplified front bumper support structure featuring a crossmember, fastening plate, and integrated arcuate bumper element that forms a triangular structure, reducing the need for additional components and ensuring headlamp protection and force deflection without separate deformation elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate components (crossmember, catcher, deformation elements) are used to meet crash and pedestrian protection requirements, then the safety requirements are fulfilled, but the device complexity and cost increase
Solution Approach 1:
The patent combines the crossmember, catcher, and deformation elements into a single integrated bumper beam structure. The bumper beam directly integrates the force-absorbing deformation capability into the crossmember itself, eliminating the need for separate catcher and deformation element components while maintaining all required safety functions.
Solution Approach 2:
The integrated bumper beam performs multiple functions simultaneously: it serves as the structural crossmember, provides pedestrian protection through integrated deformation capability, and protects headlamps through its geometric design. This multi-functional design eliminates the need for separate specialized components for each function.
2Reliability
If multiple separate components are used to meet crash and pedestrian protection requirements, then the safety requirements are fulfilled, but the assembly processes and cost increase
Solution Approach 1:
By merging all protective functions into a single bumper beam component, the number of assembly operations is dramatically reduced. The integrated structure requires only one assembly operation to install the entire protective system, eliminating multiple separate assembly steps for attaching catchers, deformation elements, and crossmembers.
3Reliability
If multiple separate components are used to meet crash and pedestrian protection requirements, then the safety requirements are fulfilled, but the weight increases
Solution Approach 1:
The integrated bumper beam consolidates all mass into a single optimized structure rather than distributing it across multiple separate components. This allows for more efficient material distribution and weight optimization while maintaining the same total protective capability.
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
This design reduces the risk of headlamp damage, maintains required free space for pedestrian protection, and effectively absorbs and deflects impact forces during collisions, lowering costs and complexity while saving weight.
Implementation Method 1
the crossmember 12′ is supported by a deformation element 16′ configured as a crash can... forwards the impact forces in a desired manner and/or absorbs these forces by axial deformation
Implementation Method 2
effectively absorbs and deflects impact forces during collisions
Data Source
AI summary
A front bumper arrangement support structure for a motor vehicle includes a crossmember having a front end region that extends substantially transversely to the vehicle longitudinal direction, a fastening plate located to the rear of the crossmember and at least one deformation element that extends between the front end region of the crossmember and the fastening plate. Here, an integrated bumper element is provided. The bumper element extends in an arcuate manner between the front end region of the crossmember and the fastening plate and protrudes to the front or forward relative to the crossmember. The integrated bumper element, the deformation element and the fastening plate form an approximately triangular structure.