The design on 255/45R19 104W new energy vehicle tire was introduced.In the structural design,the following parameters were taken:overall diameter 707 mm,cross-sectional width 270 mm,width of running surface 222 mm,arc height of running surface 7.33 mm,bead diameter at rim seat 486 mm,bead width at rim seat 236 mm,and maximum width position of cross-section(H1/H2)0.92.The tread pattern adopted a five variable pitch design,pattern depth 7.3 mm,block/total ratio 72.47％,and the number of pattern pitches 88.In the construction design,the following processes were taken:adopting 2 layers of 1670dtex/2 polyester cord for carcass,2×0.30ST steel cord for belt,1400dtex/2 nylon 66 cord for crown strip,and using a one-stage building machine to build tires and nitrogen vulcanization process to cure tires.The test results of the finished tire showed that,the inflated peripheral dimension,strength,bead unseating resistance,high-speed performance and durability of the tire all met the corresponding national standards or design requirements.
new energy vehicletirestructural designconstruction designfinished tire performance
NETL
NSTL
万方数据
