Hybrid Bumper with Trim Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modern vehicle bumper systems face challenges in balancing styling flexibility, cost-effectiveness, high strength-to-weight ratio, and efficient energy management while minimizing components and ensuring environmental sustainability, particularly in managing impact energy and pedestrian safety.
Innovation Solution
A hybrid bumper system incorporating a polymeric reinforcement beam with L-shaped structural covers and a fascia, using different materials for aesthetic and structural components, which can be selectively painted or chrome-plated, and integrated with a tow bar for stable attachment to the vehicle frame, reducing tooling costs and weight while enhancing design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hybrid bumper systems use components made of different materials to optimize particular components for particular design requirements, then design flexibility and energy management are improved, but the number of components and assembly costs increase
Solution Approach 1:
The patent combines the reinforcement beam and trim cover into a single integrated polymeric component. The reinforcement beam includes an integrated trim cover formation that receives the trim cover, eliminating the need for separate attachment operations. This merging reduces the number of components and assembly steps while maintaining the design flexibility of using different material properties in different regions of the same component.
2Use of energy by moving object
If hybrid bumper systems use components made of different materials to optimize particular components for particular design requirements, then energy absorption characteristics are improved, but assembly costs and quality problems increase
Solution Approach 1:
The integrated reinforcement beam and trim cover reduce assembly costs by eliminating separate attachment operations. The trim cover is formed as an integral part of the reinforcement beam structure, requiring only a single molding operation rather than separate manufacturing and assembly steps for multiple components.
Solution Approach 2:
The patent uses a polymeric reinforcement beam that can incorporate different materials or material properties in different regions. The reinforcement beam may include different densities, material compositions, or structural characteristics in various zones to optimize energy absorption characteristics for different impact scenarios while maintaining a single-component structure.
3Adaptability or versatility
If additional components are mounted onto the exterior of existing bumper systems to provide styling flexibility, then aesthetic appeal is improved, but weight and cost increase without substantial benefit
Solution Approach 1:
The trim cover is integrated into the reinforcement beam as a single molded component rather than being a separate attachment. This integration eliminates the weight of additional fasteners, mounting structures, and adhesive materials that would be required for separate trim pieces, while providing the same aesthetic and styling benefits.
Data Source
AI summary
A hybrid bumper system includes a polymeric reinforcement beam with end sections and structural covers attached to the end sections to considerably strengthen the end sections. Bracketry stably supports the reinforcement beam on a vehicle frame. A fascia covers at least part of the reinforcement beam but leaves a portion of the structural covers in a visible position. The structural covers are treated for aesthetics, such as by painting, chroming, or other surface treatment. In one aspect, the beam includes a molded polymeric beam component, structural L-shaped covers attached to its end sections, and a tie bar along its rear side that stiffens and rigidifies a center of the polymeric beam component. In another aspect, a tow bar or rail-to-rail metal reinforcement beam front system (or rear with tow bar) is incorporated.