Tire bench test device and tire performance test method using the device
A technology of bench test and test method, applied in tire installation, automobile tire test, tire parts and other directions, can solve problems such as poor correlation, large difference in ground contact load, and low correlation
Active Publication Date: 2017-04-12
SUMITOMO RUBBER IND LTD
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Problems solved by technology
[0005] However, there is a problem that the correlation between the results obtained by the conventional bench test and the actual vehicle driving test results is not good.
According to the results of various experiments conducted by the inventors, the reason why the above-mentioned correlation is low is that the ground contact shape of the tire running on the inner peripheral surface of the drum is larger than that of the tire running on the road with an actual vehicle. are not the same, resulting in a large difference in the load acting on the ground plane, etc.
Method used
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Embodiment
[0079] In order to confirm the effect of the present invention, based on the JASO standard, the comprehensive value of the noise of the tire, the pitch noise (primary) and the ground contact shape when these noises are generated were obtained by using the bench test device of the present invention, and were compared with each other. It is a test for comparing the test results of the above indicators when the real vehicle is running. Table 1 and Table 2 show the test results for different tire sizes. Common specifications are as follows.
[0080]
[0081] The position of the noise measuring instrument: on the vertical plane including the tire rotation axis, 1.0m away from the tire equator in the axial direction of the drum, and 0.25m upward from the bottom end of the inner peripheral surface of the drum (refer to Figure 7 (a), (b))
[0082] Specifications of noise measuring instrument: Noise meter based on JIS C 1505 (precision noise meter)
[0083] Specifications of simu...
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The present invention provides a tire bench testing apparatus by which a test result having a higher correlation with a performance test result of a tire which is carried out in the field can be obtained in a room. The tire bench testing apparatus (1) carrying out the performance test of the tire in the room comprises a drum (2) which enables the tire (T) to be contacted and drive and can rotate; a supporting shaft (3) which keeps the tire (T) assembled in a rim (J) to be rotatable in a cantilever manner; a driving unit for rotating and driving the drum (2) or the supporting shaft (3). The drum (2) possesses an inner circumferential surface (2G), and the inner circumferential surface (2G) possesses a simulation road (7) on which the tire (T) can drive, and a smooth arc-shaped surface (2M) protruded towards a radial outside of the drum in a cross-section having the rotation axis (2c) of the drum.
Description
technical field [0001] The invention relates to a tire bench test device and a tire performance test method using the device. The tire bench test device can be used to obtain test results indoors that are highly correlated with tire performance test results performed outdoors. Background technique [0002] As a tire running test method for evaluating the running performance of a tire, there are known a real vehicle running test method based on an actual vehicle and a bench test method using a drum to evaluate the running performance. [0003] The actual vehicle driving test method is a method performed outdoors, using a vehicle to run on a test course, and evaluating tire running performance such as noise performance, cornering performance, water drift performance, and wear performance. [0004] Bench test methods, on the other hand, are methods performed indoors such as Figure 8 As shown, using a table test device s provided with a running surface ta for the tire t on the ...
Claims
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IPC IPC(8): G01M17/02
CPCB60C25/002G01M17/02
Inventor 岸田正宽
Owner SUMITOMO RUBBER IND LTD