很多司机朋友在开车的时候都会有一些自己的“小妙招”,比如在起步的时候“稳”踩油门,这样可以更省油;开空调的时候尽量不开窗,这样可以更舒适,诸如此类的小技巧应该是很多司机都知道的,可是有的时候大家对于它们到底该怎么操作却还是会存在疑问或者误区,比如今天我们要说的这个话题,当我们开车经过下坡路段的时候,采取降挡行驶的方式,利用发动机来制动,这样的方法到底会不会伤车呢?
转速过高的确会对发动机造成一 定的伤害,尤其是对连杆造成的负荷极大!但关键是您非得把发动机转速拖的那么高么?
就不能在到了坡顶的时候提前先点脚刹车,然后逐级减档来牵制车速么?车是死的、人是活的!您若非得在坡顶保持5档、100+的车速往下坡冲,不减速再来个跨级减档,直接把转速拖出红线区,发动机不出问题才怪,当然这样的问题完全是您自找的!
发动机制动是一项很好的牵制车速的技术,建议每位车友都掌握的技术!发动机制动利用了发动机只压缩空气而不打火的方式,依靠发动机压缩空气的阻力来消耗掉车子的行驶动能的方式来起到减速的作用!
下长坡时,建议多使用发动机制动,而并非不让您踩刹车,制动踏板该踩还得踩,发动机制动+刹车协同使用才能真正的保证下长坡的安全!
不过发动机制动也是有需要注意的地方的,不然就很容易伤车。
挂挡
最主要的就是在进入坡道之前,就要提前降低车速,然后选择与车速匹配的档位实现降速,切忌不可跳档减挡,这样不仅会在瞬间加剧发动机和变速箱齿轮间的磨损,也有可能会影响安全驾驶。
踩刹车
所以综合来看,利用发动机制动下坡,确实比单纯踩刹车制动更加安全可靠,不过这个“小妙招”也需要注意使用方式,切忌跳档减挡,不然就很容易伤到爱车了。
利用发动机制动下坡,确实比单纯踩刹车制动更加安全可靠,不过这个“小妙招”也需要注意使用方式,切忌跳档减挡,不然就很容易伤到爱车了。
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