Improve Tire Performance on Wet Road Conditions
Modern passenger vehicle tires must evacuate water efficiently while maintaining contact patch stability across varying road conditions. Field measurements show that even a 2mm water film can reduce tire-road friction by 50% at highway speeds, while deeper standing water creates hydroplaning risks above 80 km/h. Understanding how tread design, rubber compounds, and surface treatments interact with water films is crucial for vehicle safety.
The fundamental challenge lies in balancing water evacuation capability against tread block stability, wear resistance, and rolling efficiency—properties that often demand opposing design choices.
This page brings together solutions from recent research—including multi-depth sipe architectures, specialized silica-modified compounds, layered tread constructions, and optimized groove geometries. These and other approaches demonstrate how tire designers are addressing wet performance without compromising other critical tire characteristics.
1. Exploring Effect of a Ternary Filler System on Low Hysteresis and Improved Wet Grip Properties of Sustainable and Fuel‐Efficient Tyre Tread Formulations
v bijina, k abhitha, youhong tang - Wiley, 2025
ABSTRACT Significant advancements in developing highperformance, sustainable tyre tread compounds have been achieved through the strategic integration of modified silica into carbon black (CB)/thermally exfoliated graphite hybrid filler systems. While benefits fillers such as CB, graphite, and are recognized, limited understanding their interaction mechanisms with polymer chains has hindered widespread adoption. This study investigates mechanical, thermal, dynamic mechanical properties an ecofriendly, green compound, focusing on both binary (CB/silica) ternary (CB, graphite/modified silica) The key aspect this research is utilization prepared by latex imprinting technique along epoxidized natural rubber (ENR) a compatibilizer to enhance between NR matrix. partial replacement CB thermally novel lateximprinted enhanced surface area provides excellent properties, low rolling resistance, improved wet grip, reduced heat buildup. porosity silica, coupled system, play crucial role reducing hysteresis, resulting resistance (0.0376), grip (0.0796), very buildup (13C). attribu... Read More
2. Heavy Duty Tire Tread with Narrow Grooves Having Radially Inner Enlarged Width and Shallow Sipes
SUMITOMO RUBBER INDUSTRIES LTD, 2025
Heavy duty tire with reduced rolling resistance and improved wet performance as the tire wears. The tire has a specific tread design with narrow grooves and sipes that suppresses rolling resistance increase due to wear. The narrow grooves have a radially inner enlarged width portion with wider groove width than the body. The sipes are shallower than the narrow grooves. This allows the enlarged width portion to remain as the body narrows and sipes disappear. It prevents wet performance degradation in the later stages of wear when the enlarged width portion is exposed. The tread has high styrene butadiene rubber and silica content to enable this design.
3. Tire Tread with Directional Groove Geometry and Asymmetric Wall Angles
THE YOKOHAMA RUBBER CO LTD, 2025
Tire with improved dry, wet and snow performance by optimizing groove geometry for steering stability. The tire has a specific mounting direction relative to the vehicle, with innermost groove having equal wall angles on both sides and outer grooves having smaller inner wall angles. This enhances drainage and snow shedding from the innermost groove while maintaining steering stability on all surfaces. The smaller inner wall angles on outer grooves prevent excessive turning resistance on wet or snowy roads.
4. Pneumatic Tire with Asymmetrically Inclined Main Grooves and Notched Inner Blocks
THE YOKOHAMA RUBBER CO LTD, 2025
A pneumatic tire with improved wet and snow performance by optimizing the tread pattern. The tire has alternating pairs of asymmetrically inclined main grooves extending from the ground contact edge to the equator. These form staggered land portions extending from the equator to the ground. The innermost blocks in each land have notches opening to the main groove connections, improving drainage. This pattern provides enhanced snow traction, braking, and wet grip compared to traditional symmetrical treads.
5. Tire Tread with Chamfered Circumferential Blocks and Grooves for Water Evacuation
BRIDGESTONE CORP, 2025
A tire design with improved wet braking performance and steering stability while reducing rolling resistance compared to traditional tires. The tire has circumferential blocks separated by circumferential grooves. The blocks have chamfered edges at the inner and outer ends of the lateral grooves. These chamfered edges provide drainage channels for water evacuation during braking. The chamfer angles and relative sizes of the chamfers optimize wet performance and steering stability without excessive rolling resistance.
6. Tire Tread Rubber Composition with Specific Elastomer Blend and Silica Filler System
THE GOODYEAR TIRE & RUBBER CO, 2025
Rubber composition for tire treads that balances wet traction, rolling resistance, and snow performance. It uses a specific combination of elastomers, fillers, resins, curing agents, and accelerators. The elastomer blend includes low-cis polybutadiene, functionalized styrene-butadiene rubber, and high-cis polybutadiene. Silica filler with a blocked mercapto silane coupling agent, hydrocarbon traction resin, and a substituted phenol aldehyde tackifying resin complete the composition.
7. Rubber Composition with Low Styrene SBR and Blocked Mercapto Organosilane for Tire Treads
THE GOODYEAR TIRE & RUBBER CO, 2025
Rubber composition for tire treads that provides improved wet performance, rolling resistance, and snow traction compared to traditional tire tread compounds. The composition contains a specific blend of elastomers, fillers, resins, and curing agents. The elastomer blend includes a low styrene content SBR with a low glass transition temperature, along with polybutadiene. The SBR has functional groups for improved adhesion to silica filler. The composition also contains a blocked mercapto organosilane coupling agent for better silica bonding. This combination provides a balance of wet traction, rolling resistance, and snow traction for all-season and winter tires.
8. Tire Tread Rubber Composition with Specified Liquid Polybutadiene, Aluminum Hydroxide, and Vulcanizing Agent Proportions
KUMHO TIRE CO INC, 2025
Tire tread rubber composition that improves wet braking, wear, and snow braking performance while maintaining fuel efficiency. The composition contains specific amounts of liquid polybutadiene, aluminum hydroxide, and vulcanizing agent relative to the total rubber. Using these optimized levels provides a tire compound that dramatically enhances wet grip, wear resistance, and snow traction compared to conventional rubber formulations.
9. Development of an Intelligent Instrumented Tire for Real-Time Hydroplaning Risk Estimation
alexandru vilsan, corina sandu, gabriel anghelache, 2025
<div>This study introduces an innovative intelligent tire system capable of estimating the risk total hydroplaning based on water pressure measurements within tread grooves. Dynamic represents important safety concern influenced by depth, design, and vehicle longitudinal speed. Existing systems primarily assess using wedge effect, which occurs predominantly in deep conditions. However, shallow water, is far more prevalent real-world scenarios, effect absent at higher speeds, could make existing unable to reliably risk. Groove flow a key factor dynamics, it governed two mechanisms: interception rate pressure. In both cases, groove will increase as result increasing speed for constant depth. Therefore, grooves also approaches critical Unlike conventional systems, proposed design utilizes amplitude shape measured signals from Experimental results indicate that peak increases with hydroplaning. Furthermore, overall signal be By addressing limitations current offers robust solution real-time estimation across diverse driving conditions.</div>
10. Rubber Composition with Specific Tan Delta Curve and Pneumatic Tire Integration
SUMITOMO RUBBER INDUSTRIES LTD, 2025
Tire rubber composition and pneumatic tire with significantly improved overall performance in terms of wet grip and fuel economy. The rubber composition has a tan delta vs temperature curve with a peak tan delta and half width satisfying a specific relationship (0.025 or greater). This curve shape provides both enhanced wet grip due to the high peak tan delta and improved wet grip and fuel economy due to the sharp curve. The composition can contain modified BR, silica, silane coupling agents, wax, antioxidants, oil, zinc oxide, sulfur, and accelerators.
11. A Simulation of Tire Hydroplaning Based on Laser Scanning of Road Surfaces
wenjin zeng, wenliang wu, zhi li - Multidisciplinary Digital Publishing Institute, 2025
To investigate the influence of pavement texture on tire hydroplaning, this study utilized laser scanning to capture surface characteristics three asphalt mixturesAC-13, SMA-13, and OGFC-13across fifteen rutting plate specimens. Three-dimensional (3D) models were reconstructed incorporate realistic data. Finite element simulations, employing fluid-structure interaction explicit dynamics in Abaqus, conducted model tire-water-pavement interactions. The results indicate that anti-skid performance ranks as OGFC > SMA AC. However, despite exhibiting comparable metrics (e.g., pendulum friction value mean depth), OGFCs superior uniformity significantly better hydroplaning resistance. Additionally, tread depth critically influences speed. A novel Anti-Slip Comprehensive Texture Index (ACTI) was proposed evaluate uniformity, providing a more comprehensive assessment performance. These findings underscore importance enhancing safety under wet conditions.
12. Tire Tread with Main Groove Recessed Sections and Specific Depth-to-Width Ratios
SUMITOMO RUBBER INDUSTRIES LTD, 2025
Tire tread design that maintains ride comfort and wet performance as the tread wears. The tread has a main groove with recessed sections that push water away from the tire contact patch. The recessed sections have a specific ratio of depth to groove width when worn versus new. The ratio is 1.05-1.40 for sea ratio and 0.95-1.04 for hardness ratio. This prevents excessive wear and keeps ride comfort and grip as the tread wears. The recessed sections are alternating on the groove walls. The tread also has a specific rubber composition that changes less with aging.
13. Pneumatic Tire with Zigzag Circumferential Grooves and Sub-Groove Configuration
SUMITOMO RUBBER INDUSTRIES LTD, 2025
Heavy duty pneumatic tire with improved wet traction and wear resistance. The tire has a zigzagging crown circumferential groove and a zigzagging shoulder circumferential groove. Adjacent crown lateral grooves connect the crowns to shoulders. The crown blocks have smaller sub-grooves with fewer, shorter transverse grooves compared to the wider lateral grooves. This configuration provides enhanced wet traction from the zigzagging main grooves, while the smaller sub-grooves prevent excessive wear.
14. Conjugated Diene-Based Polymer Modified with Functional Group-Containing Compound for Enhanced Filler Affinity
LG CHEM LTD, 2025
Modifying conjugated diene-based polymers like styrene-butadiene rubber (SBR) to improve properties like wet grip, low rolling resistance, and processability. The modification involves reacting the polymer with a specific modifier containing a functional group derived from a compound represented by formula 1: R1-R6 are alkoxy groups, A is an arylene or heteroarylene ring, and L1-L4 are alkylene chains. The modifier has affinity with fillers like silica and improves compounding properties.
15. Rubber Composition with Silica and Surface-Treated Aluminum Hydroxide for Tires
THE YOKOHAMA RUBBER CO LTD, 2025
Rubber composition for tires that provides improved wet grip, wear resistance, and low heat degradation compared to conventional tire rubbers. The composition contains specific amounts of silica, surface-treated aluminum hydroxide, styrene-butadiene copolymer, liquid SBR, tackifier resin, and optionally a silane coupling agent. The silica has a nitrogen adsorption specific surface area (N2SA) of 100-300 m2/g and a N2SA/CTAB specific surface area (SSA) of 1.10 or less. The surface-treated aluminum hydroxide improves wet grip. The styrene-butadiene copolymer with high styrene content provides wear resistance. The liquid SBR with high vinyl content and unmodified tackifier resin enhance wet grip. The composition also contains a sil
16. Rubber Composition Incorporating Silane-Modified Resin with Specific Modulus and Melting Temperature for Enhanced Silica Dispersion
TOYO TIRE CORP, 2025
Rubber composition for tires with enhanced wet grip performance, strength, and tensile properties. The composition contains a diene rubber, silica, and a silane-modified resin with a modulus of 700-1200 MPa and melting temperature of 110-140°C. The silane-modified resin improves silica dispersion and rubber matrix interaction compared to conventional silanes.
17. Tyre Rubber Matrix with Functionalized Carbon Nanoparticles for Enhanced Dispersion and Structural Properties
HAYDALE COMPOSITE SOLUTIONS LTD, 2025
Tyres for vehicles with improved grip, wear resistance, and low weight. The tyres contain a rubber matrix with functionalized carbon nanoparticles like graphene and carbon nanotubes. The functionalization improves dispersion of the carbon nanoparticles in the rubber. This provides better grip, structural and chemical properties, and abrasion resistance compared to unfunctionalized carbon nanoparticles. The functionalization involves treating the carbon nanoparticles with chemicals like nitric acid to modify their surface.
18. Vehicle Control System with Tire Slip Limit Estimation and Elastic Slip State Maintenance
HONDA MOTOR CO LTD, 2025
Vehicle control system and method that accurately estimate tire slip limits and maintain tires in the elastic slip state for improved traction and stability. The system estimates tire stiffness and road friction based on vehicle dynamics like speed, acceleration, and torque. It then calculates the adhesion limit driving force for each tire. By controlling the drive source and brakes to keep tire forces below this limit, the tires operate at a constant slip angle. This prevents excessive slippage or locking that can lead to instability. The estimated tire properties also account for factors like load changes and attitude to improve accuracy.
19. Pneumatic Tire Tread with Parallel Sipes Featuring Differential Depth Profiles
CONTINENTAL REIFEN DEUTSCHLAND GMBH, 2025
Pneumatic vehicle tires with improved wet grip and better transmission of tractive force as the tread wears. The tires have treads with profile ribs having sipes that extend parallel to each other. The depth of the main portion of each sipe is less than the depth of the edge portion that leads into the cavity between the rib and groove. This configuration allows good wet grip as the depth of the main sipe portion reduces with wear, while still maintaining stiffness from the wider cavity portion.
20. Rubber Composition with Specific Diene Rubber Structure and High 1,2-Bond Content
KURARAY CO LTD, 2025
Rubber composition for tires with improved wet grip and ice grip performance. The composition contains a specific diene rubber with a weight average molecular weight of 5,000 to 50,000 and a unique structure. The rubber has a high mol % of 1,2-bonds in the butadiene units, but also contains specific structural units represented by the formula (1). This composition, when crosslinked, provides tires with enhanced wet grip and ice grip properties compared to traditional rubber compounds.
Tire manufacturers are always working to increase grip and safety in wet situations by fine-tuning tread designs, rubber compositions, and other structural aspects. These developments are essential to giving drivers tires that continue to operate at their best through bad weather, which makes driving on wet roads safer.
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