Tire Life Extension Methods

Tyre sustainability is an important aspect of environmental responsibility in the automotive industry. This paper encompasses processes tyre production, use, wear and disposal a way that minimizes negative impacts on environment human health. It focuses extending life tyres, reducing their ecological footprint recycling them efficiently. From production to use recycling, number measures can be taken reduce tyres ecosystems society. These steps include innovations materials, improved technologies responsible approach waste management.

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Heavy truck tire tread design that improves wear life without compromising wet braking performance. The tread has a unique groove configuration with hidden, open, and partially hidden grooves. This configuration provides more contact surface area for wear resistance without increasing the contact pressure that can harm wet braking. It also has lateral sipes that extend across multiple grooves to prevent irregular wear. The hidden grooves have undersurface channels that open to the contact surface as the tread wears. This provides additional contact surface without increasing the total depth. The open grooves have bottom surfaces that become visible as the tread wears. The partially hidden grooves have bottom surfaces that partially become visible. The sipes have a height greater than half the tread depth. The hidden grooves, open grooves, and partially hidden grooves along with the sipes provide a more complex contact pattern as the tread wears, preventing irregular

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A method to improve the durability of polyethylene terephthalate (PET) cord reinforcing plies in tire cap layers. The method involves coating the single filament PET cord with an adhesive, drying it, and then thermobonding the cord at elevated temperature under tension. The bonding step applies tension of 8-12 mN/dtex to the cord while heating it between 23-260°C for 30-90 seconds. This process strengthens the PET cord and enhances durability without adding weight or increasing noise compared to untreated PET cord. The treated PET cord can be used in tire cap plies to improve durability without sacrificing other performance characteristics.

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Tire design to balance wear life and cut resistance in construction and mining tires. The tire has narrow grooves in the tread to increase rubber volume and wear life. However, narrow grooves can lead to cut separation between the tread and belt due to road cuts. To address this, the tire has a unique groove configuration in the center of the tread. The center groove has a tapered section that gradually widens towards the base, followed by a wide straight section. This design provides initial rubber volume for wear resistance, but in the middle of wear when cuts are more likely, the wide straight section appears to prevent separation between the tread and belt.

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Balancing tire wear between tandem drive axles in vehicles like trucks to reduce premature tire replacement and improve vehicle performance. The system biases torque distribution between the front and rear tandem axles based on operating conditions to compensate for asymmetric wear. Sensors monitor axle conditions, and a controller calculates a bias factor based on factors like loading, torque, and scrub. It then adjusts the requested torque split between the axles to mitigate uneven wear. This prevents accelerated wear feedback loops and improves tire life.

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Detecting when a tire rotation is needed for a vehicle using onboard sensors to monitor tire rolling radius and recommending tire rotations based on the difference in rolling radius between the front and rear tires. The system compares the rolling radius difference to a threshold and notifies the driver when it exceeds the threshold, indicating that a tire rotation is recommended. This allows optimizing tire wear by moving the less worn tires to the positions that will wear down faster.

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A pneumatic tire design that balances shock burst resistance and high-speed durability. The tire has a tread with center and shoulder regions. The center region has a center cover layer between the tread and carcass. The center region thickness is less than the shoulder region thickness. This reduces center tread height compared to the shoulders. It prevents excessive loading and pressure differences in the center during high-speed driving that can degrade durability. The center cover layer provides shock burst resistance without excessive center tread height.

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The article presents the analysis of technical requirements for automobile tires, which have a direct impact on safety wheeled vehicles by increasing adhesion tires to support surface with low coefficients, wet asphalt, rolled snow and ice, as well environmental characteristics wheel rolling resistance sound level reduction when driving asphalt. scientific novelty is research aimed at limiting abrasive wear tire tread, development test methods its assessment during road bench tests. uncertainties possible systematic accidental errors that occur testing are analyzed, may affect results supervision in market products released basis primary certification. carried out application international norms UN Regulations Global Technical Republic Belarus Russian Federation, Eurasian Economic Union whole. Recommendations offered early modern State countries comparison Regulation On Safety Wheeled Vehicles.

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A tire with improved adhesion durability between the steel cord and rubber coating for better fuel efficiency and longer tire life. The tire uses steel cords for belt reinforcement that are not twisted and have a specific maximum gap between filaments. The steel cords are coated with rubber and have a ternary metal coating of copper, zinc, and iron. This coating composition and cord configuration provide better adhesion between the steel and rubber compared to conventional cords. The reduced gap between filaments prevents belt edge separation. The specific ternary metal coating improves adhesion. This allows thinner rubber coatings for fuel efficiency while maintaining adhesion.

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Heavy duty construction vehicle tire with reduced crown temperature for longer tire life. The tire has cavities extending into the tread from the surface or edge that contain a low-hysteresis elastomer layer with silica filler. The depth of the cavities varies linearly with the silica content of the adjacent low-hysteresis layer. This allows heat exchange between the cavities and external environment to dissipate internal tire heat.

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A tire balancing system that uses a mixture of non-absorbent beads and moisture absorbing beads to improve tire longevity and balance. The mixture prevents moisture buildup inside the tire that can cause corrosion, pressure fluctuations, and clogged valves. The non-absorbent beads provide balancing while the moisture absorbing beads prevent excess moisture from clumping the balancing beads.

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Pneumatic tire design that improves steering stability, durability, and ease of mounting/demounting without compromising one another. The tire has a turned-up ply with turned-up portions around the bead cores. Inner and outer apex rubbers extend between the main body and turned-up portions. The inner apex rubber height is 18-30 mm. The tire has specific buttress, maximum width, and bead thickness measurements satisfying expressions (1)-(4). This configuration improves steering stability, durability, and allows easier mounting/demounting compared to traditional turned-up ply designs.

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In the context of intensification open-pit mining and growth quarry machinery fleet, issues efficient use maintenance oversized ultra-large tires are becoming particularly relevant. This article is devoted to analysis causes tire wear dump trucks consideration hot vulcanization method as main their restoration. It was established that greatest risk damage falls on sides tread tire, nature defects diverse often combined. The method, in strict accordance with technological regulations, ensures restoration mechanical properties a significant increase service life. stages considered, including preparation, cleaning, application materials, heat treatment, cosmetic noted process labor-intensive requires further optimization, automation improvement solutions. addition, order resistance wheels, it proposed consider possibility implementing design changes them themselves. obtained results can be useful development regulations equipment repair systems.

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Rapid urbanization has intensified pressure on transport infrastructures, with urban bus networks playing a crucial role in promoting sustainable mobility. However, managing operational costs while minimizing environmental impacts remains major challenge. This study investigates the innovative Tire-as-a-Service (TaaS) model applied to fleets, incorporating regrooving and retreading techniques improve tire durability efficiency. The TaaS shifts focus from purchasing tires service-based approach, where users pay according usage (i.e., kilometers driven), proactive maintenance waste reduction. Solving this problem is based discrete-event simulation algorithm optimize inspection schedules and, consequently, minimize total guaranteeing minimum level of service reducing impact. A robustness analysis will validate developed, thus contributing more system.

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Motorcycle tire with tread design to reduce wear step formation. The tire has a curved tread profile. The land ratio, or width-to-height ratio, of each zone between the tread edges and ground contacting surface is specified. This prevents excessive wear step formation at the edges of the tread by optimizing the wear distribution. The curved tread shape and controlled land ratios suppress the step wear that can occur in the center of the tread due to its shape.

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Automatically determining tire wear in real-time during vehicle operation without visual inspection or manual measurement. The method involves using sensors to continuously monitor tire parameters like rolling radius and stiffness. A machine learning model normalizes the effects of these parameters on rolling radius and stiffness. Changes in normalized rolling radius and stiffness over time indicate tire wear. The model can determine average wear and irregular wear patterns.

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Tire tread for heavy construction vehicles that improves grip, especially on muddy terrain, while also increasing wear resistance. The tread has blocks with concave contact faces and a distribution of radial heights between the inner and outer portions that allows better penetration and anchoring. The concave contact faces have at least three pairs of sides forming angles greater than 180 degrees. This shape provides better grip and traction compared to convex contact faces. The radial height of the outer penetration portion is 0.1-0.6 of the total block height.

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Pneumatic tire with improved grip and durability at high speeds. The tire has a tread with at least two rubber compounds with different thermal conductivities in the ground contacting surface. This allows efficient heat dissipation during high-speed running to prevent excessive heat buildup. The tire also has specific dimensions and groove geometry to further enhance grip and durability.

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A compound called 3,14,14-trimethyl-2,3,4,4a,5,12,14,14a-octahydroquinolino[2,3-b]acridin-7 (1H)-one that can be used as an aging stabilizer in rubber products like tires. The compound has a lower hazard potential compared to traditional aging stabilizers like p-phenylenediamines. It can be used in rubber mixtures at low amounts to provide sufficient aging protection without blooming. The compound can be synthesized by reacting citronellal, acetone, and aniline derivatives.

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Rubber composition for pneumatic tires with improved durability without sacrificing elongation. The composition contains a diene-based rubber, carbon black, and phosphoric acid-modified cellulose nanofiber. Adding the modified cellulose nanofiber to the rubber composition enhances rubber strength without reducing elongation compared to using just carbon black. This provides better tire durability without compromising tire flexibility.

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