New tyre vertical pressure distribution function, algorithm and test system

Abstract

The invention relates to a new tyre vertical pressure distribution function, an algorithm and a test system. The new tyre vertical pressure distribution comprises steps that, S1, an average pressure module is determined; S2, inner vertical grounding blotting length is acquired; S3, a bias coefficient is acquired; and S4, the new tyre vertical pressure distribution function is constructed. Through the function and the algorithm, problems of relatively low precision and can-not-be-excellently-reflected tyre rolling direction existing in a traditional tyre vertical pressure distribution function employing a parabola function are solved, in combination with the average pressure module, the inner vertical grounding blotting length and the bias coefficient, the new tyre vertical pressure distribution function capable of realizing simple and accurate computation is constructed, and thereby the vertical pressure distribution situations are conveniently tested.

Description

technical field [0001] The invention relates to a pressure distribution function, in particular to a new tire vertical pressure distribution function, algorithm and testing system. Background technique [0002] Tire vertical pressure distribution is an important part of tire mechanics theory, and the distribution of tire vertical force has an important impact on the driving and braking performance of automobiles. Now the most widely used tire vertical pressure distribution function is the parabolic function, which has a simple structure, low precision, and cannot reflect the rolling direction of the tire well; any pressure distribution function constructed by the research team of Jilin University where η(u)=A(1-u 2n )(1+λu 2n )(1-Bu), A = ( 2 n + 1 ) ( 4 n + 1 ...

AI Technical Summary

Problems solved by technology

Now the most widely used tire vertical pressure distribution function is the parabolic function, which has a simple structure, low precision, and cannot reflect the rolling direction of the tire well; any pressure distribution function constructed by the research team of Jilin University where η(u)=A(1-u 2n )(1+λu 2n )(1-Bu), A = ( 2 n + 1 ) ( 4 n + 1 ) 2 ( 4 n + 1 + λ ) , B = 3 ( 2 n + 1 ) ( 4 n + 3 ) ( 4 n + 1 + λ ) ( 2 n + 1 ) ( 4 n + 1 ) ( 4 n + 3 + 3 λ ) Δ a , Although the accuracy is high, it can also reflect the rolling direction of the tire, but the model is too complicated, and the solution calculation is cumbersome

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