高速问题
- 今天先讲三缸的问题,1.5T的发动机要输出足够功率,只能以高速高扭的调教实现,分[{"type":1,"content":"今天先讲三缸的问题,1.5T的发动机要输出足够功率,只能以高速高扭的调教实现,分配到每个缸体做功强度会大幅上升,内缸使用涂层技术就是为了降低摩擦延长寿命,但不要忘了内燃机的工作环境(高温高压),现在最好的涂层技术(离子溅镀)也就耐久8年左右(实验室状态),还有发动机时间长了一定有积碳(100%会发生,只是程度差别),有了积碳,涂层技术再好也被盖住了无法发挥作用。这时候,三缸集中做功(强度大)与四缸分担做功(强度相对低),对发动机性能及可靠性的影响可就是天壤之别了,所以三缸耐久可靠性、抖动一定是大概率会发生的问题。加上通过复杂曲轴结构实现的所谓的“压缩比调节”技术(就技术文献及专利而言,这也不是什么日产的原创新技术),这样的发动机开个缸,这费用可就厉害了,可以预见厂商对这样的问题一定会采取视而不见的态度(“315”曝光的日产旗下英菲尼迪就是这么明目张胆地干的)。至于抑振(防止抖动)措施,主要是靠橡胶阻尼结构实现的(之前日产自己买通的车评也是这么宣称的),橡胶件的耐用性可想而知(3~5年)。总结一下,技术的进步,一定有矛盾的双面性或者叫局限性,在三缸这个事情上日产高估自己了(或者低估中国消费者了)。\n\n再说变速箱,捷科特CVT国产型号本来就是个破烂货,看看这三缸发动机的扭矩上限,再比较一下所谓“改善后”的钢链CVT可承载扭矩上限,两个参数之间,冗余量不足15%,加上日产CVT车型相当比例存在的过载保护(冬天有“冷保护”,等上一段时间才能正常行驶;拥堵路段有“热保护”,也是限制车速。日产CVT变速箱就是个“爷”,得供着。你让日产承认问题并改善,那是门儿都没有,起码是在中国没有)。说到底,这车只能“温柔驾驶”,沙漠越野什么的就是与那些蹭吃蹭玩,再收点红包的无良车评人合伙演个戏,开个几小时屁问题也说明不了。\n\n还是那句话,又省油又可靠,为什么不在美国市场批量贩卖(那边做了个发布,就拉过来糊弄国内消费者),说白了,真在那边卖,怕消费者保护法的监管,以为这边好骗是吧?弄一拨无良车评人吹牛皮,把中国消费者当***,你日产挣了高利润(所谓的新平台,连车架都没怎么改,轴距没改就是辅证。在车身强度上偷工减料,所以美国那边碰撞是前排3星、副驾2星的烂分。)网上说的“190亿美金就研究减了个缸”,这一点没错,这就是所谓“技术日产”产品能力和营销手段的笑话。就这样还要挣“双积分”的钱……","order":1,"width":0,"height":0},{"type":2,"content":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/08/31/fc076c9e8d8b4f7dacfe213c7c212684_800_0_max_jpg.jpg","order":2,"note":"","path":"/2021/08/31/fc076c9e8d8b4f7dacfe213c7c212684.jpg","width":1280,"height":960},{"type":2,"content":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/08/31/acc42ec402ec4c69bafdd65f29e64288_800_0_max_jpg.jpg","order":3,"note":"","path":"/2021/08/31/acc42ec402ec4c69bafdd65f29e64288.jpg","width":1080,"height":2340}] 查看详情>>
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- 高速胎压问题?[ { "type" : "1", "content" : "我想问下 跑高速胎压最低不能低于多少 最高又是多少?", "order" : 1 }, { "height" : 478, "content" : "https:\/\/img3.baa.bitautotech.com\/img\/V2img3.baa.bitautotech.com\/dzusergroupFiles\/2021\/10\/25\/d560191e4bc442a394a1746b7a2760f2_800_0_max_jpg.jpg", "note" : "", "order" : 2, "width" : 700, "type" : "2", "path" : "\/2021\/10\/25\/d560191e4bc442a394a1746b7a2760f2.jpg" } ] 查看详情>>
- 各位车友,咨询一个关于高速公路etc的问题[{"content":"高速公路收费站etc出口,标识客车etc和货车etc,汽车出站可以混走吗?我小车出站吓得不敢走货车etc出口?有懂的老铁教教我。","height":0,"order":1,"type":1,"width":0},{"content":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/21/faf8a5d711cb48b4abd838da0be4702e_800_0_max_jpg.jpg","height":932,"note":"","order":2,"path":"/2021/10/21/faf8a5d711cb48b4abd838da0be4702e.jpg","type":2,"width":2048},{"content":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/21/1291689fc6b34ee495539c1d49f50c4b_800_0_max_jpg.jpg","height":1080,"note":"","order":3,"path":"/2021/10/21/1291689fc6b34ee495539c1d49f50c4b.jpg","type":2,"width":1440}] 查看详情>>
- 新车下雨天跑了一次高速,第二天前轮刹车出现异响,是什么问题,各位车友请指教😂[{"content":"新车下雨天跑了一次高速,第二天前轮刹车出现异响,是什么问题,各位车友请指教😂","height":0,"order":1,"type":1,"width":0}] 查看详情>>
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- #新能源充电#就目前来讲,新能源充电还是一个问题,尤其是出远门走高速,服务区充电[{"content":"[_LinkTopic:新能源充电,42783,37]就目前来讲,新能源充电还是一个问题,尤其是出远门走高速,服务区充电桩非常有限,充电一小时,等待四五个小时甚至更长的时间,有车变成了不方便。","height":0,"order":1,"type":1,"width":0},{"height":744,"note":"","order":2,"path":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/16/886d8b5db05a445db5d0c3cef088d0e3_1080_0_max_png_92.png","type":2,"width":932},{"height":538,"note":"","order":3,"path":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/16/0f607606af76435da43e67bbf65008a7_1080_0_max_png_92.png","type":2,"width":987},{"height":721,"note":"","order":4,"path":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/16/aa08b504e5d34cbfab6f9d17a503e962_1080_0_max_png_92.png","type":2,"width":1065},{"height":736,"note":"","order":5,"path":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/16/870962eec3a64c3fa72551b12a988414_1080_0_max_png_92.png","type":2,"width":1053},{"height":597,"note":"","order":6,"path":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/16/02d37a2b57544b1ba4e5341795c42dca_1080_0_max_png_92.png","type":2,"width":868},{"content":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2021/10/16/cb8f340be3564c31b547fe79f48e0c0f_800_0_max_png.png","height":500,"note":"","order":7,"path":"/2021/10/16/cb8f340be3564c31b547fe79f48e0c0f.png","type":2,"width":936}] 查看详情>>
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- 传祺GS4上高速开一百二会有飘车的问题吗请问一下[{"content":"请问一下","height":0,"order":1,"type":1,"width":0}] 查看详情>>
- 不懂就问!👀关于国庆节高速收费问题 求解🙇[ { "type" : "1", "content" : "各位xdm我原本打算10.1日0点出发回家,早上六七点到家。但是朋友说我9月30日,晚上八九点出发,到了家里也是10月1日的凌晨一两点,这样下高速也是不收费的,并且还能错过10月1日0点的高速路口高峰期,我想问我朋友这个操作可以吗?\n\n我百度了一下,百度上说可以,我朋友也说他之前这样做过。我还是想问好再走,毕竟想提前回家,早几个小时错过高峰期挺香的…😬", "order" : 1 }, { "height" : 707, "content" : "https:\/\/img3.baa.bitautotech.com\/img\/V2img3.baa.bitautotech.com\/dzusergroupFiles\/2021\/09\/26\/7059d2e606d3440788e7c43ddb1b5307_800_0_max_jpg.jpg", "note" : "", "order" : 2, "width" : 985, "type" : "2", "path" : "\/2021\/09\/26\/7059d2e606d3440788e7c43ddb1b5307.jpg" }, { "height" : 600, "content" : "https:\/\/img3.baa.bitautotech.com\/img\/V2img3.baa.bitautotech.com\/dzusergroupFiles\/2021\/09\/26\/de087531f38743a09df19295b4680122_800_0_max_jpg.jpg", "note" : "", "order" : 3, "width" : 600, "type" : "2", "path" : "\/2021\/09\/26\/de087531f38743a09df19295b4680122.jpg" } ] 查看详情>>
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