Segmented Vehicle Chassis Core for Load Distribution
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Solution Overview
Problem
Existing vehicle chassis designs for vehicles with significant flat load spaces lack optimal rigidity and material efficiency, particularly in distributing suspension loads effectively across the chassis structure.
Innovation Solution
A chassis framework comprising a central rigid core with elongate longitudinal and lateral members, bracing elements, and suspension arrangements that distribute suspension loads efficiently, using a combination of tubular sections and composite panels to reduce weight and material usage while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a three-dimensional framework structure is used to provide chassis rigidity, then structural strength is improved, but material usage and weight increase
Solution Approach 1:
The chassis framework is segmented into a central rigid core formed by longitudinal and lateral members, with suspension loads directed specifically to this core. This segmentation allows the majority of the chassis structure to be lighter while maintaining overall rigidity through the reinforced core region.
Solution Approach 2:
The central core of the chassis is provided with enhanced rigidity and strength properties compared to other regions. The longitudinal and lateral members forming the core are designed with higher structural characteristics to handle suspension loads, while peripheral chassis members can be lighter as they do not carry suspension forces.
2Strength
If a three-dimensional framework structure is used to provide chassis rigidity, then structural strength is improved, but vehicle weight increases
Solution Approach 1:
The chassis is divided into a load-bearing central core and peripheral structures. Only the core region requires heavy reinforcement for suspension load support, while other areas can use lighter materials, reducing overall chassis weight.
Solution Approach 2:
Enhanced structural properties are concentrated in the central core where suspension loads are applied. This localized reinforcement means that only a portion of the chassis requires high strength materials, reducing the total weight compared to a uniformly strong chassis structure.
3Adaptability or versatility
If chassis members extend beyond the central core to provide vehicle shape, then design flexibility is improved, but structural complexity increases
Solution Approach 1:
The chassis is segmented into a simple rigid central core and extended peripheral members. The core provides the essential structural function with minimal complexity, while the extended members can be designed with greater flexibility to accommodate various vehicle shapes and styling requirements without compromising the core structural integrity.
Data Source
AI summary
A vehicle with a load space to provide a chassis comprising a framework (10) comprising a pair of spaced-apart elongate longitudinal members (12, 14) connected by a pair of spaced-apart elongate lateral members (20, 22) and bracing for the thus-defined framework, a rear suspension attached to the rearmost lateral member (20) and comprising a trailing-arm arrangement (52), and a front suspension attached to the front most lateral member (22) and comprising a leading-arm arrangement (58). This creates a rigid core for the chassis, which also provides all four suspension mounting points.