Side-by-Side Vehicle Layout for Lower Center of Gravity
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Solution Overview
Problem
All-terrain and utility vehicles face challenges in maintaining stability on rugged terrain due to high centers of gravity, which can lead to instability and increased risk of tipping, especially when carrying passengers and cargo.
Innovation Solution
The design incorporates a lower center of gravity through the use of lightweight materials in the cab frame assembly and strategic positioning of the powertrain and suspension components, including torsion bars and load-leveling shocks, along with a frame assembly that supports the powertrain and suspension systems, to maintain stability and ground clearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional frame materials are used in the cab frame assembly, then structural strength is sufficient, but the center of gravity is high causing instability
Solution Approach 1:
The cab frame assembly uses composite materials combining aluminum alloy and polymeric materials to achieve both strength and weight reduction. This allows the vehicle to maintain structural integrity while lowering the center of gravity for improved stability on rugged terrain.
Solution Approach 2:
The patent changes the material parameters of the cab frame assembly by transitioning from traditional heavy materials to lightweight aluminum alloy and polymeric composites. This parameter change directly addresses the center of gravity issue while maintaining necessary structural properties.
2Strength
If heavy frame materials are used, then structural strength and durability are improved, but vehicle stability deteriorates due to higher center of gravity
Solution Approach 1:
The frame assembly utilizes composite materials that provide high strength-to-weight ratio. The aluminum alloy and polymeric material combination delivers the necessary frame strength while keeping the overall weight low, thereby improving vehicle stability without compromising structural integrity.
3Adaptability or versatility
If the vehicle is designed to carry passengers and cargo, then utility and versatility are improved, but the center of gravity rises causing instability
Solution Approach 1:
The cab frame assembly's composite material construction enables the vehicle to carry passengers and cargo while maintaining a lower center of gravity. The lightweight yet strong materials allow for increased payload capacity without proportionally increasing overall vehicle weight, preserving stability.
4Stability of the object's composition
If traditional suspension components are used, then suspension function is adequate, but ground clearance and stability are reduced
Solution Approach 1:
The suspension system incorporates load-leveling shocks with adjusted damping parameters to maintain ground clearance and stability. By changing the shock absorption characteristics and positioning components strategically, the system achieves improved ground clearance without requiring a completely redesigned suspension architecture.
Data Source
AI summary
A utility vehicle includes a plurality of ground-engaging members, a frame assembly, a cab frame assembly, a front suspension assembly, a rear suspension assembly, a power steering assembly, and a powertrain assembly, all of which may be configured to lower the center of gravity of the vehicle.