Tire Grip Enhancement

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.

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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.

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Motorcycle tire with improved grip and wear performance. The tire has a tread with an inner layer (first rubber) and an outer layer (second rubber) adjacent to it. The inner layer forms the tread surface. The first rubber has a lower loss tangent and glass transition temperature compared to the outer layer. This configuration reduces abrasion on the tread while maintaining grip. The lower loss tangent of the inner layer rubber prevents excessive tread wear, while the lower glass transition temperature allows it to deform more readily for better grip.

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Carbon fiber-reinforced polyetheretherketone (CF/PEEK) composite offer lightweight, high strength and toughness by combining benefits of resin fiber materials. However, current shaping methods face challenges such as forming difficulties, inconsistent shapes, significant mechanical damage. Herein, a CF/PEEK thermoforming device were designed. Thermoforming employs two heating molds (crimping mold at 310C roll pipe 400C) coiling roller operating 45 rpm to enable automatic efficient continuous production pipes with diameters ranging from 3 5 mm. High-strength retain excellent thermal stability during shaping, commendable properties-tensile 1467 N (decrease 8.8 %) specific stiffness 1.61 10 6 Nm/kg, 35-fold increase. Furthermore, stronger braided winding points introduced into hollow truss enhance their strengths, radial compression node-reinforced structure is 550 (improved 151 % compared that single pipe). This truss, its ultra-lightweight tensile/compressive strength, significantly expands application potential

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Tire design for high and ultra-high performance vehicles with improved traction on ice and snow. The tire has a unique tread pattern with annular grooves and transverse grooves in the center portion. This annular section is delimited by two circumferential channels. The annular grooves have connecting transverse grooves with inclined segments. This configuration provides enhanced grip on icy and snowy roads by breaking up and channeling snow and slush between the grooves. The inclined transverse groove segments further improve snow and ice traction by preventing snow buildup.

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Controlling torque applied to a vehicle wheel using a vehicle control unit that integrates slip control with torque control to improve response time and accuracy. The control unit has a stored tire model where longitudinal force is a function of longitudinal slip. It converts wheel torque requests to wheel speed requests by calculating slip requests based on the corrected tire model. The slip control corrects the tire model function using parameters like age, wear, and load to adapt force-slip behavior. This allows fast, accurate torque control by leveraging the slip control subsystem.

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This review investigates interlayer hybrid fiber composites for wind turbine blades (WTBs), focusing on their potential to enhance blade damage tolerance and maintain structural integrity. The objectives of this are: (I) assess the effect different lay-up configurations failure analysis (II) identify combinations WTBs supplement or replace existing glass fibers. Our method involves comprehensive qualitative quantitative analyses literature. Qualitatively, we tolerance-with an emphasis impact load-and under operational load six distinct configurations. Quantitatively, compare tensile flexural properties-essential integrity-of composites. reveals that placing high elongation (HE)-low stiffness (LS) fibers, e.g., glass, impacted side reduces size improves residual properties Placing low (LE)-high (HS) carbon, in middle layers, protects them during equips with mechanisms delay various conditions. A sandwich HE-LS fibers outermost LE-HS innermost layers provides best balance between integrity post-impact properties. benefits from synergistic effects, including bridging, enhanced buckling ... Read More

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Abstract This paper presents a comprehensive assessment of the quasistatic compression response novel 3Dprinted carbon fiberreinforced polymer (CFRP) and glass (GFRP) corebased corrugated foamfilled sandwich composite structures (SCS). The SCSs with five different CFRP GFRP core geometries, that is, rectangular, trapezoidal, triangular, sinusoidal, Xcore, were fabricated using hybrid manufacturing method, cores produced fused filament fabrication (FFF), while facesheets vacuumassisted infusion processes. Among trapezoidal SCS outperformed showed highest peak compressive load, Xcore exhibited lowest load energy absorption. materials, superior loads absorption, irrespective geometry. However, both similar stiffness, keeping same geometry core. Results elucidate are an appropriate configuration for performance, demonstrating up to 3 times higher as compared obtained in case XGFRP SCSs. eigenvalue buckling analysis reveals excessive bending walls causes under loads, which is primarily responsible localized failure at various locations observed experimentally. T... Read More

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Vehicle cornering control system specialized for circuit driving that reduces suspension damping force during cornering to improve performance on race tracks. The system determines if the vehicle is cornering on a track based on factors like cylinder pressure, accelerator pedal displacement, lateral acceleration variation, and steering angle. When circuit cornering is detected, the damping force is reduced to minimize load movement and improve grip and yaw response.

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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.

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ABSTRACT Carbon fiberreinforced polymer composites (CFRPs) are extensively employed in engineering applications owing to their exceptional strengthtoweight ratio and outstanding fatigue resistance. Nevertheless, when utilized critical components such as aircraft wings, wind turbine blades, structural elements, performance durability frequently degraded by harsh environmental conditions. To address these challenges, thermoplastic polyurethane (TPU) nonwoven fabric was introduced an interlayer carbon fiber/epoxy (CF/EP) improve both erosion resistance interlaminar fracture toughness. Experimental investigations revealed remarkable enhancements mechanical properties: the CF/TPU/EP exhibited a 28.6% increase maximum load, 11.8% improvement tensile strength, substantial 45.3% augmentation bending load compared conventional CF/EP composites. Moreover, demonstrated progressive enhancement with increasing impact angles (30 90), showing improvements of 58%, 130%, 185%, 227%, 292%, respectively. These results clearly demonstrate that TPUmodified achieve superior toughness while... Read More

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Motorcycle tire with improved braking stability and cornering performance. The tire has a unique tread rubber composition and layout. The tread has an inner crown rubber section and outer shoulder rubber sections. The crown rubber has lower stiffness and hardness compared to the shoulders. This allows better braking stability at lower tire deflections. The shoulders have higher stiffness and hardness for better cornering grip at higher deflections. The transition between crown and shoulders is angled to prevent separation. The shoulder-crown boundary extends circumferentially while maintaining the angle. This ensures continuous contact during braking without gaps.

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ABSTRACT Aluminium - based metal matrix composites (AMMCs) are fast emerging due to their favorable properties like light weight, low density, high specific strength, hardness, temperature and thermal shock resistance, superior wear corrosive resistance as compared ordinary alloys is another added property. In the present work samples were prepared using Al- SiO2 machining operation performed obtain required shape size for smoothing surfaces. Also Prerequisite performing tensile test, impact, hardness compression microstructure. It observed from results that significant increase of reinforcement element well produces better mechanical such impact toughness hardness. But strength showed different trend machinability selected material. Microstructure analysis done on specimens it was found weight fractions MMC phases uniformly distributed. Successful incorporation in base pure aluminium by micro structural examination Optical microscope. Upon examination, fine grains coarse Al. Similar variable compositions evaluated.

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Vehicle control system that assists off-road driving in rutted terrain by providing guidance to the driver. The system uses sensors to detect rut characteristics and proximity of the vehicle body to the ruts. If the body is too close to the ruts, it defines a strategy to position the vehicle at a higher ground clearance point. It then provides guidance to the driver to execute the strategy. This helps prevent getting stuck in ruts and improving traction. The driver can select an off-road assistance mode that enables this feature.

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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.

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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.

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Tire with improved braking performance and reduced noise compared to conventional tires with shoulder sipes. The tire has a tread with specific sipe configurations on the shoulder region. The sipe design involves chamfered edges on the shoulder sipes. During braking or cornering, the chamfered edges prevent the sipe edges from getting pulled inside the land region and lifting the surface, allowing better grip and braking performance compared to conventional sipes. The chamfered edges also reduce the noise generated by the sipes contacting the road. The tire also has sipes only on the ground contacting surface of the first shoulder land region between the edge and tread, which further improves braking performance by preventing lifting of the land region.

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Optimizing traction control for a transport vehicle like an automated guided vehicle (AGV) in a goods transport system to prevent wheel slipping during acceleration, deceleration, and on inclined paths. The method involves dynamically distributing torque between the front and rear wheels based on the vehicle's speed and path incline. A motion controller generates separate torque signals for the front and rear wheels by adjusting the distribution to improve traction on the specific conditions. This allows maintaining traction and preventing wheel slippage on challenging paths and speeds.

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Optimizing the performance of an autonomous race car to reduce lap times during a race. The system monitors real-time parameters like tire wear, road conditions, and weather during a race. It compares these to initial values to detect errors between planned and actual car behavior. If errors are found, the system learns deductions like insufficient friction or acceleration. It then generates corrective actions like adjusting acceleration or avoiding certain sections to improve lap times.

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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.

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