Vehicle Tire Tread Segmentation for Decoupled Snow and Dry Performance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle tires face challenges in simultaneously optimizing adhesion, grip, braking properties, and rolling resistance across various surface conditions, particularly in decoupling snow driving behavior and rolling resistance, and achieving independent adjustment of dry, wet, and snow driving behaviors.
Innovation Solution
A vehicle tire design featuring annular and axially symmetrical rubber components with distinct compositions and geometries, allowing for precise adjustment of tread properties, including dynamic stiffness, to optimize performance on different surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single rubber mixture is used for the entire tread, then manufacturing is simple, but it cannot simultaneously optimize adhesion, grip, braking properties, and rolling resistance on various surfaces
Solution Approach 1:
The tread is divided into multiple tread sections (first, second, third, and fourth tread sections) arranged in the circumferential direction, with each section containing rubber mixtures optimized for specific driving conditions. This segmentation allows different rubber compositions to be placed in specific locations to optimize performance for snow, dry, and wet conditions independently.
Solution Approach 2:
Different rubber mixtures with specific properties are assigned to different tread sections based on their intended function. For example, tread sections optimized for snow contact have rubber mixtures with properties suitable for snow adhesion, while other sections have mixtures optimized for dry or wet road performance. This local optimization resolves the contradiction by making the tread structure complex only where necessary for performance differentiation.
2Adaptability or versatility
If different rubber mixtures are combined in the tread, then snow driving behavior and dry driving behavior can be optimized, but the properties influence each other and prevent ideal performance on both surfaces
Solution Approach 1:
The tread is divided into multiple tread sections (first, second, third, and fourth tread sections) arranged in the circumferential direction, with each section containing rubber mixtures optimized for specific driving conditions. This segmentation allows different rubber compositions to be placed in specific locations to optimize performance for snow, dry, and wet conditions independently.
Solution Approach 2:
Different rubber mixtures with specific properties are assigned to different tread sections based on their intended function. For example, tread sections optimized for snow contact have rubber mixtures with properties suitable for snow adhesion, while other sections have mixtures optimized for dry or wet road performance. This local optimization resolves the contradiction by making the tread structure complex only where necessary for performance differentiation.
3Adaptability or versatility
If the tread is designed to optimize snow driving behavior, then snow adhesion improves, but rolling resistance increases
Solution Approach 1:
The tread is divided into multiple tread sections (first, second, third, and fourth tread sections) arranged in the circumferential direction, with each section containing rubber mixtures optimized for specific driving conditions. This segmentation allows different rubber compositions to be placed in specific locations to optimize performance for snow, dry, and wet conditions independently.
Solution Approach 2:
Different rubber mixtures with specific properties are assigned to different tread sections based on their intended function. For example, tread sections optimized for snow contact have rubber mixtures with properties suitable for snow adhesion, while other sections have mixtures optimized for dry or wet road performance. This local optimization resolves the contradiction by making the tread structure complex only where necessary for performance differentiation.
4Adaptability or versatility
If helical material strips with different rubber mixtures are used, then adhesion and abrasion properties can be combined, but manufacturing complexity increases and dry driving characteristics worsen
Solution Approach 1:
The tread is divided into multiple tread sections (first, second, third, and fourth tread sections) arranged in the circumferential direction, with each section containing rubber mixtures optimized for specific driving conditions. This segmentation allows different rubber compositions to be placed in specific locations to optimize performance for snow, dry, and wet conditions independently.
Solution Approach 2:
Different rubber mixtures with specific properties are assigned to different tread sections based on their intended function. For example, tread sections optimized for snow contact have rubber mixtures with properties suitable for snow adhesion, while other sections have mixtures optimized for dry or wet road performance. This local optimization resolves the contradiction by making the tread structure complex only where necessary for performance differentiation.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a vehicle tire comprising: at least one reinforcement layer, a tread with a first and a second rubber component, at least one tread section of the first tread, wherein the first tread section is arranged radially below the tread surface of the vehicle tire and a cross-section of the first tread section perpendicular to the tire's circumferential direction has at least one first rubber component with a radially extending first height and at least one second rubber component with a radially extending second height, characterized in that in the first tread section the at least one first and the at least one second rubber component are arranged axially one after the other such that a second rubber component follows one of the first rubber components.at least one first rubber component or at least one second rubber component is ring-shaped and runs axially symmetrically around the axis of the vehicle tire, and the first rubber component has a first rubber composition and the second rubber component has a second rubber composition that differs from the first rubber composition.