Vehicle Track System Dynamic Torque Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing track systems for vehicles, such as ATVs and UTVs, do not provide optimal performance on certain terrain types like mud and snow, and lack improvements in acceleration and hill climbing characteristics, as well as the ability to extricate from sticky situations.
Innovation Solution
A track system with a dynamic traction device that applies torque to the track system frame about the rear axle, changing the longitudinal angular position of the ground-facing frame assembly, thereby enhancing force transfer and improving acceleration, incline driving, and reverse traction capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a track system is used instead of wheels on an ATV, then traction on certain terrain types (mud, snow, sand) is improved, but the vehicle requires additional structural elements to restrict track movement and prevent rotation
Solution Approach 1:
The patent applies the dynamics principle by making the track system's angular position adjustable and variable. The track system can dynamically change its angle relative to the vehicle chassis, allowing it to adapt to different terrain conditions. This dynamic adjustment capability eliminates the need for complex fixed structural restrictions while maintaining optimal traction on mud, snow, and sand surfaces.
Solution Approach 2:
The patent implements parameter changes by varying the angular position of the track system relative to the vehicle chassis. This parameter (angular position) can be adjusted to optimize track contact with different terrains. By changing this geometric parameter, the system achieves improved traction without requiring additional restrictive structural elements.
2Object-affected harmful factors
If the track system is made larger than wheels to provide better traction, then traction capability is improved, but the vehicle suspension (designed for wheels) cannot accommodate the track system's movement
Solution Approach 1:
The patent applies dynamics by enabling the track system to dynamically adjust its angular position relative to the vehicle chassis. This dynamic capability allows the track system to adapt to suspension movement and terrain variations, resolving the conflict between larger track size for traction and suspension design for wheel rotation.
Solution Approach 2:
The patent implements multi-functionality by designing the track system to serve multiple functions: it provides traction on various terrains while simultaneously accommodating suspension movement. The adjustable angular position allows the same structure to function optimally both as a traction element and as a suspension-compatible component.
3Device complexity
If existing track systems are used without torque application, then the structure is simpler, but acceleration and hill climbing characteristics are suboptimal
Solution Approach 1:
The patent applies dynamics by introducing a torque application mechanism that dynamically adjusts the track system's angular position. This dynamic torque application enhances acceleration and hill climbing performance by optimizing force transfer to the terrain, while the system maintains relative structural simplicity through this controlled dynamic adjustment.
Solution Approach 2:
The patent implements preliminary action by pre-positioning the track system at optimal angular orientations before force application. The torque mechanism can pre-rotate the track system to angles that favor acceleration and hill climbing, ensuring optimal force transfer begins immediately when power is applied, thereby enhancing performance without complex additional structures.
4Reliability
If the track system is restricted from rotating to prevent contact with vehicle parts, then damage prevention is improved, but the ability to follow ground contours and provide smooth ride is reduced
Solution Approach 1:
The patent applies dynamics by allowing controlled angular adjustment of the track system. Rather than completely restricting rotation, the system can dynamically change its angle within safe limits. This dynamic capability enables the track to follow ground contours and provide smooth rides while preventing contact with vehicle parts through controlled angular boundaries.
Solution Approach 2:
The patent implements local quality by applying different angular restrictions at different locations or conditions. The track system can rotate freely within certain angular ranges that prevent vehicle contact, while maintaining sufficient freedom to follow terrain contours. This localized angular freedom optimizes both protection and terrain adaptation.
Data Source
AI summary
A track system for a vehicle having a rear swing arm that is movable between a compressed suspension position and an extended suspension position. The track system has a frame and a dynamic traction device. The frame is pivotably attachable to the swing arm. The dynamic traction device has at least two elongate portions, one of which is movable relative to the other between a retracted position and an extended position and biased toward the retracted position. In use, the elongate portions interconnect the vehicle and the frame. When the vehicle is lifted off terrain, during at least a part of a movement of the swing arm from the compressed suspension position toward the extended suspension position, the dynamic traction device applies a torque to the frame and thereby changes a longitudinal angular position of the frame counter-clockwise relative to a left side of the vehicle.