Modular Steering Column Energy Absorber for Variant Standardization
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Solution Overview
Problem
Current energy absorption systems for vehicle steering columns are complex and require numerous components and tools due to varying energy absorption requirements across different vehicles and regions, leading to increased production costs and complexity.
Innovation Solution
A modular energy absorption device comprising a support, a deforming member, an energy absorption member, and a coupling member, which can be assembled independently and adapted to different specifications, allowing for standardization of components and reduced production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a different energy absorption system is designed for each vehicle specification, then the energy absorption requirements are met, but the number of components and tools increases
Solution Approach 1:
The support structure is designed as a universal component that can be used across different vehicle models and specifications. The support includes standardized fastening portions and a modular architecture that accommodates various absorber configurations, eliminating the need to design complete energy absorption systems for each vehicle variant while maintaining compliance with different energy absorption requirements
Solution Approach 2:
The energy absorption system is divided into modular components: a standardized support structure and interchangeable absorber elements. This segmentation allows the support to remain constant across vehicle models while only the absorber portion needs to be changed to meet different energy absorption specifications, reducing the overall number of components and tools required
2Reliability
If a different energy absorption system is designed for each vehicle specification, then the energy absorption requirements are met, but production costs increase
Solution Approach 1:
The support structure serves as a universal platform that can be manufactured once and used across multiple vehicle models and specifications. This universality reduces production costs by eliminating the need to manufacture complete energy absorption systems for each variant, while still allowing customization of the absorber portion to meet different energy absorption requirements
3Adaptability or versatility
If vehicle-specific energy absorption systems are used, then regional requirements are met, but standardization is reduced
Solution Approach 1:
The system is segmented into a standardized support portion and a variable absorber portion. The support maintains standardization across all applications with consistent fastening portions and mounting interfaces, while the absorber can be customized to meet different regional and vehicle-specific energy absorption requirements, achieving both standardization and adaptability
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 modular design simplifies production, reduces costs, and allows for efficient energy absorption across various vehicle models and variants, enhancing economic performance and resource optimization.
Implementation Method 1
an energy absorption member, hereinafter absorber, made up of a plastically deformable part separate from the support, coiled around the deforming member
Data Source
AI summary
The present invention relates to a modular energy absorption device (9) comprising:a support (91) having fastening portions (81) forming single fastening points for fastening said device to a steering column,a deforming member (94) securely connected to the support,an absorber (93) coiled around the deforming member and fitted securely at each of its ends to the support,a coupling member (96) formed of a part separate from the support and having a first side securely connected to the absorber and a second side having at least a first engaging shape (96a),said device being designed such that the exertion of forces in opposite directions on the support and on the tooth, respectively, brings about stress on the coiled portion of the absorber, tending to deform the latter.