Tire Endurance Testing

Tire testing equipment that allows realistic simulation of tire slip characteristics under braking conditions. The equipment has a motor, flywheel, loading mechanism, tire mounting mechanism, and base. The tire is mounted between the loading mechanism and brake components. The loading component is connected to the tire shaft via a fixed bracket. A torque sensor between the fixed bracket and brake components measures braking torque. This setup allows applying different braking torques to the tire while rotating it, more accurately simulating tire slip under actual braking conditions compared to simulated road surfaces.

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Fixed tire testing bench that integrates testing of tire life, braking performance and power performance into one device. It provides a stable road condition for testing tires by applying normal force above the suspension system. The bench has a lifting drive to change height for adaptability. The tire drive connects to a torque sensor. Six-dimensional force sensors, weighing component and road simulation test tire dynamics. The bench reciprocates the platform vertically to simulate differential speed and tire slip.

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A device to test tire-road friction under realistic conditions to accurately assess tire wear and road performance. The device has a sealed chamber with a removable road simulation section that can be swapped for different surfaces. A driver connects to the tire and a climate simulation changes temperature/humidity. A smoke treatment mechanism absorbs tire/road debris to prevent dispersion and inhalation. This allows testing friction under various road and weather conditions.

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A device to accurately test tire rigidity in cold temperatures. The device allows tire static rigidity testing in low temperatures to evaluate tire performance in extreme cold environments. It uses a temperature controlled cabinet with a refrigeration unit to maintain low temperatures inside. The cabinet has a test platform for mounting tires and sensors to measure force, displacement, and platform temperature. This allows testing tire stiffness at low temperatures to better understand tire behavior in cold conditions.

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All-weather, full-cycle tire performance testing method and equipment that enables testing multiple tire properties like rolling resistance, durability, wet grip, and snow/ice performance on a single tire using a specialized testing machine. The equipment has features like adjustable tire roll angle, side deflection, temperature/humidity control, and changeable drum surface to simulate various road conditions. By testing multiple properties on a single tire, it avoids using multiple tires for different tests and improves the feasibility and accuracy of tire performance testing.

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Mobile tire testing bench that can accurately simulate tire performance on different road surfaces while reducing lateral forces. The bench has a chassis with front and rear wheels, the rear wheels are driven by an auxiliary motor. The testing mechanism between the front and rear allows lifting the tire to be tested off the ground. This allows the bench to be driven over different surfaces with the tire suspended. By decoupling the test wheel from the main drive, speed inconsistency generates traction force. The three-dimensional force sensor detects traction and load changes. This enables testing tire-road interactions on various surfaces.

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A tire pre-running test method that aims to accurately and efficiently run in tires before formal testing to improve tire performance and consistency. The method involves a series of steps that simulate realistic driving conditions. It starts with high-speed straight line driving at small slip angles to remove longitudinal residual stress. Then, it has left-right turns at different loads and directions to remove lateral residual stress. Next, vertical load is applied to remove vertical residual stress. After that, speed changes are done at different air pressures and loads. Finally, large side slip angles are driven to remove edge impurities. This comprehensive test covers various directions and speeds to fully run in the tires before subjective testing.

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Tire simulation test machine to analyze tire behavior over bumps without needing full-scale vehicles. The machine has an outer enclosure with a removable safety door and hatch, an inner assembly with sliding plates, and dust covers. Tires are mounted on the inner assembly and driven over vertical and transverse plates representing bumps. Sensors monitor temperature and forces. This allows studying tire deformation, stress, and impact on smaller, more controlled equipment versus full-scale testing.

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A tire static rigidity testing device that allows accurate measurement of tire stiffness in low temperature environments. The device has a refrigeration system, temperature control cabinet, and stiffness testing machine. It allows adjustment of both ambient air temperature and road surface temperature separately to simulate realistic tire behavior in cold conditions. This improves accuracy of tire stiffness testing in low temperatures where tires can vitrify and harden. The ability to separately control air and surface temperatures helps account for differences between road and ambient temperatures in cold weather.

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A static tire bump stiffness device for accurately testing tire stiffness properties like radial, transverse, and longitudinal stiffness at various load levels. The device allows for rotating bumps to fully test tires on a machine. It has a guide rail with a rim bracket, a base with a test tire, and a bump platform assembly. The test tire is inflated, installed on the guide rail, and a replaceable bump is placed on the platform. The bump angle is adjusted and loading applied. Sensors measure tire deformations to calculate stiffness.

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A multifunctional tire testing machine that allows simultaneous testing of tire containment characteristics and dynamic impressions. The machine has a base platform with separate loading, driving, and testing areas. A loading unit applies any load to the tire, a driving unit accelerates the tire, and a testing unit performs containment tests by rolling the tire over obstacles while measuring radial, longitudinal, and lateral forces, as well as wheel center displacement. This integrated setup eliminates the need for separate equipment and simplifies testing compared to prior methods.

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A hot-melt tire thermal cycle attenuation test bench for evaluating the durability of hot-melt rubber tires under temperature cycling conditions. The bench has a hub motor to bring a hot-melt tire into a simulation cylinder with a simulated road surface. A rotating shaft connects the hub motor to a torque sensor. Damping and driving mechanisms allow pressing the tire onto the road surface. The cylinder has temperature control. This allows cycling the tire temperature to test adhesion performance at each temperature.

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Tire test bench to accurately simulate road conditions for tire testing. The bench has a rotating mechanism with multiple conveyor belts that can replicate bumpy road sections. Tires are inserted into a telescopic rod and rotated by a motor-driven gear train. The rotating rods and cylindrical block allow bi-directional rotation. The conveyor belts on the block's circumference simulate rough road surfaces.

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Tire testing device that accurately simulates tire loading conditions to improve the accuracy of tire wear testing. The device allows adjusting the pressure between the tire and wear device to mimic realistic tire loading. It uses a rotating drum to fix the tire on the outside of a rotating shaft. By moving the drum along a fixed shaft and rotating it, the tire can be raised and lowered while the shaft rotates to simulate loading conditions. This allows adjusting the pressure between the tire and wear device to accurately test tire wear.

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A device for testing the performance of airless tires without air leakage. The device allows accurate testing of tire static and dynamic load resistance, fatigue life, and other properties without the need for high-speed cameras. The device has a frame with a movable tire fixture that can be moved towards and away from a fixed test platform. This allows precise control of tire pressure and loading conditions. The fixture can also reciprocate longitudinally and radially to simulate road conditions. Sensors detect tire forces, displacements, and platform motion. A controller drives the motors based on the sensor inputs.

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Tire over-hurdle simulation test machine for studying tire behavior when encountering road obstacles. The machine allows controlled and repeatable testing of tire performance over bumps and protrusions. It has a chamber with a dust cover, inner equipment assembly, and sliding plates to simulate crossing obstacles. A driving wheel system with a specialized wheel, clutch, and motor can precisely control wheel speed over the obstacle. Other features like protrusion ejection and cover door opening enable accurate simulation of road conditions. Sensors measure forces, displacement, and speed during testing.

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Testing tires under dynamic loading conditions that mimic realistic driving scenarios to accurately analyze tire performance and behavior under composite working conditions. The method involves testing a tire under predetermined composite conditions like rolling, rolling with longitudinal slip, and rolling with longitudinal slip and lateral slip. This allows capturing tire response data under simulated driving scenarios. Analyzing the results provides a more accurate representation of tire behavior under complex conditions compared to testing single working conditions.

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Accurately predicting the speed at which a tire will fail by evaluating its durability. The method involves incrementally increasing the tire's rotation speed while it's running on a drum driven by an electric motor. The motor power is measured at each speed. The rate of power change with respect to speed is calculated. The critical speed where the power rate sharply rises is determined. Failure speed is predicted based on the critical speed.

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Device and method for measuring tire dynamic pressure distribution at high speeds. The device is installed on the drum of a rolling resistance testing machine to replicate real-world tire conditions. It consists of multiple pressure sensors spaced along the drum surface. By rotating the drum at high speeds, the device allows dynamic pressure measurement as the tire would experience during driving. This helps evaluate tire pressure distribution at high speeds to optimize tire design and performance.

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Indoor testing method to evaluate tire cut and puncture resistance without needing actual road testing. The method involves simulated tire-road contact using a specific test setup. The steps are: 1. Prepare the test wheel with the tire mounted and inflated. 2. Secure the wheel on a test rig. 3. Place a block-shaped object on the tread at a specific location. 4. Apply a load to the wheel to simulate vehicle weight. 5. Remove the load and observe if the block is still attached to the tire. This indicates cut resistance. For puncture resistance, repeat step 4 but this time remove the block. If the tire holds air, it passed puncture resistance. The key is using a clean, dry test surface without lubricants to accurately replicate road conditions.

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