2017款,大众宝来1.6L,自动档,变速箱离合器,是干式还是湿式的?
2017款大众宝来,6AT变速箱,离合器是干式还是湿式的
推荐回答(3个)
大众宝来1.6L,自动档,变速箱离合器干式的。
干式和湿式,是指离合器片工作环境的不同。先说干式双离合,干式双离合的离合片是直接置于空气中,有齿轮啮合直接进行传动的。这种结合方式的好处是传动效率高。但是缺点也很明显,就是太容易发热,而且离合器如果长期工作在低速和半联动状态,会大大减少其使用寿命。

扩展资料:
湿式双离合就针对这个问题进行了优化,离合片的工作环境在油液中,由油液承担一部分的传动。由于油液具有润滑和吸收热量的双重作用,所以湿式离合器在应对低速工况和频繁起步时可以表现的更从容。
但是由于油液也存在一定的阻力,所以这种结构的缺点就是传动效率略低,但无论是散热性、平顺性还是使用稳定性,湿式都要比干式好。
参考资料来源:百度百科-干式离合器
干式的,估计很多老司机都不太建议使用,因为和AT变速箱和CVT变速箱相比,在可靠性和耐用性方面都不够令人满意。但是,大众双离合变速箱还有湿式和干式的区别,尤其是干式双离合变速箱更是让人不敢去碰,首先我们要弄清楚双离合变速箱的工作原理。既然是双离合变速箱,顾名思义就是有两个离合片,一个离合片跟发动机飞轮结合传输动力,一个根据驾驶者意图预先和变速齿轮结合等待接收动力,带来了超高的换挡速度。正因为快所以换挡中途动力也不会有太久的中断,总体来说双离合变速器的原理是非常先进的,但当前技术下双离合变速器容易过热的问题也是客观存在的。接下来,我们就一一来进行分析。大众干式双离合主要用于目前价格在20万以内的车型,比如目前大众旗下1.4T涡轮增压发动机匹配的都是DQ200干式双离合变速器,如速腾1.4T。因为离合片直接和发动机飞轮摩擦传动,所以叫“干式双离合”。优点是结构相对于湿式双离合来说简单一点,没有油液系统成本也会低一些,动力传输也更直接,不会损耗太多的发动机动力,缺点肯定就是没有变速箱油润滑和散热离合片容易过热。而大众的湿式双离合主要用于20万以上的车型,比如目前大众旗下1.8T和2.0T发动机匹配的就是湿式双离合变速器,如大众途观L搭载的就是DQ500湿式双离合变速器。与干式双离合变速器最大的区别,就是离合片在一个充满变速箱油的密封条件下工作,所以叫“湿式双离合”,优点是散热性能相比于干式双离合好很多,因而带来了更强的可靠性。当然缺点就是成本高一点,体积大一点。发动机动力传输没那么直接也会损耗一部分,油耗相对来说高一些。从结构设计上来看,湿式双离合要比干式双离合更靠谱一些,主要是因为干式双离合变速箱散热效率没有湿式双离合好,所以在拥堵路段低速行驶时离合器会容易出现散热不足的问题,这样就会降低离合器的使用寿命,导致干式双离合的使用寿命和稳定性都不如湿式双离合变速箱,干式双离合最容易出现问题也是离合器总成。不过好消息是,现在的双离合器变速箱已经稳定性比较好了,虽然达不到AT变速箱那么耐用,但满足我们普通人的使用需求还是没问题的。双离合变速箱确实有几万公里就出问题的,但CVT和AT变速箱就没有吗?


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