Teaching Materials. Not for Publishing.充气轮胎的重要性1Teaching Materials. Not for Publishing.轮胎的功能2Teaching Materials. Not for Publishing.轮胎是否只是一个黑而圆，中央有个空洞的物体而已呢？3Teaching Materials. Not for Publishing.轮胎 一种高复杂度产品 超过200种原料 逾30种半制成品 采用高科技4Teaching Materials. Not for Publishing.每小時350公里5Teaching Materials. Not for Publishing.CAT自重： 147吨负重: 240 吨Cat793C6Teaching Materials. Not for Publishing.7Teaching Materials. Not for Publishing.一条185/60R14 CERTIS的圆周长大约 1760毫米。如果一条 轮胎的寿命是8万公 里，这条轮胎一生要 变形 45,000,000次。胎壁变形8Teaching Materials. Not for Publishing.9Teaching Materials. Not for Publishing.10Teaching Materials. Not for Publishing.8 1/8” (20 cm)4 1/2” (11 cm)轿车重2吨，4条 205/60R15的轮 胎在30PSI时， 每条轮胎的接地 面积大约是36平 方英吋。接地面积11Teaching Materials. Not for Publishing.在如此小的面积里，轮 胎要承受从各个方向的 巨大力量，如负载，加 速，刹车，转弯，离心 力。受力12Teaching Materials. Not for Publishing.?充气轮胎的重要性13Teaching Materials. Not for Publishing.轮胎的功能1) 承载14Teaching Materials. Not for Publishing.汽车对轮胎的性能要求 支承整车重量取决于： -轮胎类型， -尺寸， -气压， - 等。15Teaching Materials. Not for Publishing.负载能力空气?16Teaching Materials. Not for Publishing.轮胎的功能2) 减震17Teaching Materials. Not for Publishing. 缓冲由路面传来的振动和冲击汽车对轮胎的性能要求取决于： - 轮胎气压 - 胎冠胶特性 - 均匀性 - 动平衡 - 等18Teaching Materials. Not for Publishing.Verticaldeflection 垂直变形距离Laden Radius 负载半径Free radius 自由半径19Teaching Materials. Not for Publishing.3) 抓地力轮胎的功能20Teaching Materials. Not for Publishing. (通过轮胎与路面的附着性能)传递驱动力 和制动力汽车对轮胎的性能要求取决于： - 轮胎纵向刚度 - 胎冠胶特性 - 花纹设计 - 等21Teaching Materials. Not for Publishing.路面轮胎22Teaching Materials. Not for Publishing.决定轮胎抓地能力的因素 轮胎接触面积 ； 轮胎橡胶成分 ； 轮胎花纹； 轮胎负载。 23Teaching Materials. Not for Publishing. 使车辆(轮)能以直线行驶 承担越障，提高通过性汽车对轮胎的性能要求24Teaching Materials. Not for Publishing.轮胎对汽车的作用和贡献 四个印痕(轮胎接地区)是汽车作为一个整体唯 一接触地面的地方。 所有力、振动、力矩均由 此才能从地面传向汽车。25Teaching Materials. Not for Publishing. 轮胎的许多性能测试、评价与汽车性能测试相类似。轮胎对汽车的作用和贡献轮胎性能汽车性能操纵性操纵稳定性舒适性噪声通过性安全性26Teaching Materials. Not for Publishing.以80公里/小时在5毫米水深路面行驶27Teaching Materials. Not for Publishing.4) 耐磨轮胎的功能轮胎都有一定的耐磨性， 都可以行驶一定里程28Teaching Materials. Not for Publishing.5) 操控性轮胎的功能29Teaching Materials. Not for Publishing.1) 承载 2) 减震 3) 抓地力5) 操控性能 6) 稳定性 7) 可靠性轮胎的功能4) 耐磨程度30Teaching Materials. Not for Publishing.如何才是好轮胎 ？v 31Teaching Materials. Not for Publishing.如何才是好轮胎 ？v 耐磨v 抓地(湿地)v 抓地(干地)v 操控性好v 速度v 耐割v 运动 胎壁保护 省油 抗锈 舒服 安静 时髦漂亮 便宜32Teaching Materials. Not for Publishing.干湿地抓着力平衡的艺术 操纵性轮胎寿命滚动阻抗舒适性轮胎耐磨力33Teaching Materials. Not for Publishing.抗割寿命 抓地(湿)滑水舒适噪音操控(运动)抓地(干)离层100平均磨耗34Teaching Materials. Not for Publishing.轮胎的功能1) 承载 2) 减震 3) 抓地力(干、湿地)5) 操控性能 6) 稳定性 7) 可靠性4) 耐磨程度Load CarryingCushioning PowerGrip(Dry & Wet)WearSteering ControlStabilityReliability35Teaching Materials. Not for Publishing.轮胎不同部分的功能 Functions of Tyre Parts36Teaching Materials. Not for Publishing.胎冠部份 Crown (Tread) Area胎肩部份 Shoulder Area胎壁部份 Sidewall AreaBead Area 胎唇Bead Seat 胎唇座Bearing Zone “承力”區 轮胎的不同部分 Different Parts of the Tyre37Teaching Materials. Not for Publishing.氣墊功能 Cushion Power負載能力 Load Carrying 操控性能Steering Control 穩定性Stability 可靠性Reliability抓地能力 Road Grip耐磨程度WearRigidity 硬耐衝擊,耐熱, 耐油,耐氧化, 適合各種天氣Resist to shocks, heat,grease, oxidation andvarious weathers.各部分功能 Functions of the Parts38Teaching Materials. Not for Publishing.气压的重要性1)是什幺承载负重？39Teaching Materials. Not for Publishing.空气40Teaching Materials. Not for Publishing.气压的单位1PSI=1 磅/平方英吋1bar=1.02公斤/平方厘米1bar=14.5PSI41Teaching Materials. Not for Publishing.自行车轮胎？猜猜下列轮胎的气压！3.0-5.0 bar工程车轮胎？1.8-3.0 bar5.5-8.0 bar6.0-8.0 bar轿车轮胎？卡车轮胎？42Teaching Materials. Not for Publishing.气压的重要性1)是什幺承载负重？2)气压与轮胎寿命的关系。43Teaching Materials. Not for Publishing.载重、气压对轮胎的影响1)载重-载重如果超过20%，轮胎寿命将平均 降低30%(从100%降到70%)。2)气压-气压如果低于规定标准20%，轮胎寿 命将平均降低20%(从100%降到80%)。3)充气不足轮胎胎冠两边过度磨损。4)充气过度轮胎胎冠中间过度磨损。44Teaching Materials. Not for Publishing.气压过低45Teaching Materials. Not for Publishing.气压过低使胎面中段脱离地面，造成轮 胎胎面两边胎肩过度磨耗46Teaching Materials. Not for Publishing.气压的重要性1)是什幺承载负重？2)气压与轮胎寿命的关系。3)气压与轮胎的损坏。47Teaching Materials. Not for Publishing.气压偏低或超载 48Teaching Materials. Not for Publishing.49Teaching Materials. Not for Publishing.50Teaching Materials. Not for Publishing.气压的重要性1)是什幺承载负重？2)气压与轮胎寿命的关系。3)气压与轮胎的损坏。4)气压与车辆的控制。51Teaching Materials. Not for Publishing.52Teaching Materials. Not for Publishing.气压的重要性1)是什幺承载负重？2)气压与轮胎寿命的关系。3)气压与轮胎的损坏。4)气压与车辆的控制。5)气压与舒适性。53Teaching Materials. Not for Publishing.54Teaching Materials. Not for Publishing.标准气压通常可在以下地方找到 ： 车辆用户手册 轿车驾驶座车门旁边的标签 车辆驾驶座旁的抽屉 油箱盖小门55Teaching Materials. Not for Publishing.几种常见车型的建议气压565758Teaching Materials. Not for Publishing.正确的气压代表：正确的气压代表： 更更 安安 全全 操操 控控 性性 好好 寿寿 命命 更更 长长