Tire Test Carriage for Stationary Road Surface Simulation
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Solution Overview
Problem
Conventional indoor tire testing devices struggle to simulate road surface conditions such as rain, snow, and gravel, limiting their ability to accurately test tire performance in various outdoor conditions.
Innovation Solution
A tire testing device with a carriage and driving system that allows a test wheel with a test tire to travel on a base and contact a road surface, featuring a power distribution mechanism and torque application system to replicate the speed and torque of a tire in motion, enabling simulation of different road conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a simulated road surface is made to run at high speed during the test, then the test efficiency is improved, but the ability to simulate road surface conditions such as rain, snow, and gravel deteriorates
Solution Approach 1:
The patent inverts the conventional approach by making the test wheel and carriage movable instead of moving the road surface. The road surface remains stationary while the test wheel travels along it, enabling both high-speed testing and simulation of various road conditions including rain, snow, and gravel without the limitations of moving the entire road surface structure
2Productivity
If the simulated road surface is made to run at high speed, then the test efficiency is improved, but the simulation of road surface conditions such as rain, snow, gravel or the like becomes difficult
Solution Approach 1:
The patent reverses the conventional configuration by keeping the road surface stationary and moving the test wheel along it. This inversion allows the road surface to be equipped with various simulated conditions (rain, snow, gravel) without being affected by high-speed movement, thereby maintaining both test efficiency and simulation accuracy simultaneously
Data Source
AI summary
A tire testing device includes a carriage configured to rotatably hold a test wheel provided with a test tire and being capable of travelling on a base along a road surface in a state where the test wheel is made to contact the road surface, and a driving system configured to drive the test wheel and the carriage. The driving system includes a carriage driving part configured to drive the carriage with respect to the road surface in a predetermined speed, a test wheel driving part configured to drive the test wheel in a rotating speed corresponding to the predetermined speed, a driving part configured to generate power to be used to drive the carriage and the test wheel, and a power distributing part configured to distribute power generated by the driving part to the carriage driving part and the test wheel driving part.