The invention discloses a high-wet-grip and low-rolling-resistance new energy automobile special tire which comprises a tire crown part, the tire crown part comprises a first-layer tread, a second-layer tread and a third-layer tread, a plurality of main grooves are formed in the treads, pattern blocks are arranged among the main grooves, the overall thickness of the third-layer tread is 1.0 mm, the thickness of the third-layer tread is 1.0 mm, the thickness of the second-layer tread is 1.0 mm, and the thickness of the third-layer tread is 1.0 mm. The thickness range of the position between the two midpoints between the cut-off point of the tread of the second-layer tread and the point outside the shoulder transverse groove is 0.5 mm-2. 6mm; the middle points are arranged between the tire tread cut-off point and the shoulder transverse groove outer point on the second layer of tire tread, and the thickness range of the positions except the two middle points is 2.6 mm-7 mm; according to the high-wet-grip and low-rolling-resistance tire special for the new energy automobile, the problems that in the prior art, the second-layer tread is designed to be too thick to exceed a tire abrasion mark, so that the risk that the wet land performance of the tire is reduced in the later use period is caused, and if the second-layer tread is too thin, the increasingly stringent rolling resistance requirement cannot be met are solved.

    本发明公开了一种高湿抓、低滚阻新能源汽车专用轮胎,包括胎冠部,所述胎冠部包括第一层胎面、第二层胎面和第三层胎面,所述胎面上设置有多个主沟槽,多个所述主沟槽之间设置有花纹块,所述第三层胎面胎面整体厚度为1.0mm,所述第二层胎面上胎面截止点到肩部横沟外点之间的中点,两个中点之间的位置处厚度范围为0.5mm‑2.6mm;以及所述第二层胎面上胎面截止点到肩部横沟外点之间的中点,两个中点之外的位置处厚度范围为2.6mm‑7mm;该高湿抓、低滚阻新能源汽车专用轮胎,解决了现有技术第二层胎面设计的过厚超过轮胎磨耗标记会导致轮胎在使用后期有湿地性能下降的风险,如果第二层胎面过薄,达不到滚阻日益严苛的需求的问题。


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    Title :

    Special tire for new energy automobile with high wet grip and low rolling resistance


    Additional title:

    一种高湿抓、低滚阻新能源汽车专用轮胎


    Contributors:
    GAO QIANGSHENG (author) / WANG PING (author) / LI CUI (author) / CHEN YUN (author) / ZHA LEI (author)

    Publication date :

    2024-08-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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