推荐回答(5个)
7档双离合好一点。
7档双离合跟8档手自一体的区别如下:
1、7档双离合比8档手自一体更省油。
2、7档双离合在换挡时的速度要比8档手自一体快一些。
3、8挡手自一体有8级的变速,多余7档双离合的7级变速。
7速DSG双离合变速箱比8速变速箱好,但没有8速的CVT变速箱好,8速的DSG比8速的CVT好。
奥迪Q5L全系Quattro Ultra智能四驱,一开始设定的就是和7速S tronic变速箱来搭的,上8速Tiptronic变速箱燃油经济性上会减分的。
挡位越多换挡速度就一定快的,挡位多变速齿轮越密传动越平顺,理论成立但换挡速度最终跟这车型出厂前的调校和电脑设定有关。
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扩展资料
一般情况下这种踩刹车后从D档切换为N档的操作时没问题的,也不对变速箱造成什么不良影响。只不过在一种特定情况下这样的操作存在风险,那就是当你在深踩刹车后从D档切换为N档,然后在松刹车之前又迅速切换回D档,如果这样操作的话会让离合器盘承受很大的压力,承受压力的离合器盘此时就有很大几率会磨滑过度。
一般停车等待时都是挂N档踩刹车或N档拉手刹,可有些人嫌换挡麻烦不管停多久都不换N档,挂着D档踩刹车一直在那等。方便倒是方便了,但这个习惯其实害处很大。
停车时如果挂D档踩刹车,车是停住了,但你保证不了刹车力度是否始终一致,如果刹车较轻,刹车力度上下浮动的话,就会让离合器在联动、半联动的状态下来回切换,从而加剧它的磨损。
7档双离合一般相对较好一些。
8速CVT手自一体算是传统的AT,来自发动机飞轮的动力靠液力变矩器传递到变速箱,能量损耗大动力传递效率一般,但有无数个传动比,所谓的8速只是一个模拟档位。CVT内部考钢带传递动力,目前还无法在大排量车子上使用。双离合没有传统自动变速器的液力变矩器,它是机械式自动变速器的一种,它有两根动力输出轴 一根连一个离合 一个控制1357挡,另一个离合控制246倒挡,在整个换档过程中,当一组齿轮在输出动力时,另一组齿轮已经待命,总是保持有一组齿轮在输出动力,不会出现动力传递的间断,使换档过程更快,提速更迅猛。它利用双重的多片式离合器的设计,提供无间断的动力输出,由此大幅度降低了车辆的燃油消耗,理论上颠覆了自动档变速器比手动档更耗油的传统观念。但眼下双离合技术算不上太成熟,cvt与双离合代表着未来的发展方向。
个人认为双离合好!
第一双离合相对自动档省油.第二,双离合换档速度在理论上要快于自动.操控更好.
并不是说自动就比不过双离合了、首先,8速,比7速齿比更绵密,肯定在加速时动力发挥得更好。再者说了,AT比双离合更普及,以后的使用.养护成本相对双离合低,坏了,配件也好找便宜。
反正各有所长.7与8没什么大区别.就看你更需要什么了。
1.手自一体的车是变速箱分自动和手动模式两种,而8档手自一体是车的变速箱是8级变速,当汽车切换到手动模式时,8档为最高档位。
2.详细解释一下,按照档位从上到下的顺序为,自动挡的车标示为:P驻车档位, R倒车档位, N空挡 ,D前进档位,S加速档位,+/-是切换到手动模拟加减档位。第8档减少了高速行驶时的发动机转速,在降低油耗和排放的同时显著提高了舒适性。注:8速的变速箱一般在豪华车上才有。
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