The invention relates to a passenger vehicle tyre (1) and aims to improve the trade-off between rolling resistance and antagonistic performance such as the various types of grip (longitudinal/transversal, on dry/wet ground) and behaviour. For a tread (2) comprising raised elements (22) having a radial height HS at most equal to 8 mm, and having a volume groove ratio TEV of 22% to 30%, according tothe invention, the radial height HS of the raised elements (22) of the tread (2) is at least equal to 5.0 mm, the total volume VCP of all the main recesses (241) in the tread (2) is at least 80% of the total volume VC of the recesses (24) in the tread (2), and the at least one elastomeric compound constituting the tread (2) has a glass transition temperature Tg of -22 DEG C to -5 DEG C, a Shore Ahardness of 45 to 65 and a dynamic loss tg[delta] at 23 DEG C of 0.13 to 0.39.
本发明涉及一种乘用车辆轮胎(1),目的是改善滚动阻力和对抗性能以及表现之间的权衡,所述对抗性能例如是各种类型的抓地力(纵向/横向,在干地面/湿地面上)。根据本发明,胎面(2)包括径向高度HS至多等于8mm且体积凹槽比TEV为22%至30%的凸起元件(22),胎面(2)的凸起元件(22)的径向高度HS至少等于5.0mm,胎面(2)中所有主要凹处(241)的总体积VCP至少为胎面(2)中凹处(24)的总体积VC的80%,并且构成胎面(2)的至少一种弹性体配混物具有的玻璃化转变温度T为‑22℃至‑5℃,肖氏硬度A为45至65,在23℃下的动态损耗tgδ为0.13至0.39。
TYRE FOR PASSENGER VEHICLE
用于乘用车辆的轮胎
03.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |