Transport Vehicle Drive Layout for Stable Spin Turns
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Solution Overview
Problem
Transport vehicles face instability during turns, particularly spin turns, due to biased center of gravity when the first and second drive sources, which are heavy loads, are not optimally positioned relative to the turning center.
Innovation Solution
The drive sources are disposed diagonally in a top-down view with respect to the turning center, and the wheel drive source is positioned in the middle region of the travel body, allowing for balanced weight distribution and stabilization during turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the drive sources are positioned to support heavy loads for functional sections, then the power and functionality are improved, but the center of gravity becomes biased causing instability during turns
Solution Approach 1:
The patent applies asymmetry by positioning the first and second drive sources diagonally opposite to each other relative to the turning center. This asymmetric diagonal arrangement balances the heavy loads created by the drive sources, preventing center of gravity bias during turns while maintaining the power needed for functional sections.
Solution Approach 2:
The patent positions drive sources in a diagonal arrangement that spans both the longitudinal and lateral dimensions of the vehicle. By distributing drive sources across these dimensions rather than concentrating them in one area, the center of gravity remains balanced during turning operations.
2Stability of the object's composition
If the wheel drive source is positioned in the middle region, then the weight balance is improved, but the complexity of positioning and alignment increases
Solution Approach 1:
The patent applies local quality by specifically positioning the wheel drive source in the middle region of the vehicle body, distinct from the diagonally positioned functional section drive sources. This localized positioning in the middle region optimizes weight balance without requiring complex positioning mechanisms for the drive source itself.
Data Source
AI summary
A pair of drive wheels are disposed in a middle region of a travel body section in a body length direction and are separated from each other in a body width direction. A first drive source is disposed on a first side in the body length direction relative to a width direction reference line and a first side in a body width direction relative to a length direction reference line in top-down view. A second drive source is disposed on a second side in the body length direction relative to the width direction reference line and a second side in the body width direction relative to the length direction reference line in top-down view.