The invention relates to the technical field of tire design, in particular to a design method and application of a passenger car tire with improved high-speed performance and the tire. A passenger car tire capable of improving high-speed performance comprises a tread, a nylon belted layer, a steel wire belted layer, a sidewall, a carcass ply, a lining layer and apex, the dry heat shrinkage rate of the nylon belted layer is C%, A is the elongation rate of the nylon belted layer at the center of a tire crown, and B is the elongation rate of the nylon belted layer at the end point of a tire shoulder; a, B and C meet the following relational expressions: A = Dc/d, A = Ds/d, C/100 + A < = 1.12, and C/100 + B > = 1.12, Dc is the diameter of the nylon belted layer at the center of the crown, Ds is the diameter of the nylon belted layer at the end point of the tire shoulder, and d is the laying diameter of the nylon belted layer in the green tire manufacturing process. By inspecting the dry heat shrinkage rate C (%) of the nylon belt bundle and calculating and designing the elongation A and B values of the nylon belt bundle at the centers of the tire shoulder and the tire crown, the purpose of improving the high-speed performance of the tire is achieved.
本发明涉及轮胎设计技术领域,尤其涉及一种具有改善高速性能的乘用车轮胎的设计方法、应用和轮胎。一种具有改善高速性能的乘用车轮胎,该轮胎包括胎面、尼龙带束层、钢丝带束层、胎侧、胎体帘布层、内衬层和三角胶,尼龙带束层的干热收缩率为C%,A为尼龙带束层在胎冠中心处的伸张率,B为尼龙带束层在胎肩端点处的伸张率;A、B、C满足以下关系式:A=Dc/d,A=Ds/d,C/100+A≤1.12,C/100+B≥1.12其中,Dc是尼龙带束层在胎冠中心处的直径,Ds是尼龙带束层在胎肩端点处的直径,d是尼龙带束层在生胎制作过程中的铺设直径。本发明通过考察尼龙带束的干热收缩率C(%),计算并设计尼龙带束在胎肩与胎冠中心的伸张率A、B值,实现轮胎高速性能改善的目的。
Design method and application of passenger car tire with improved high-speed performance and tire
一种具有改善高速性能的乘用车轮胎的设计方法、应用和轮胎
2023-07-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Determination of Passenger Tire Performance Levels — High Speed
SAE Technical Papers | 1969
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