以前我就有爱拉离合的毛病,当前面有坑洼路面或者需要减速时,想到的是拉离合,而不是踩刹车。那么,经过实际用车体验后,发现了一个小技巧:发动机制动。
刹车不要拉离合,只要放开油门,发动机转速下降,就会一定程度上带动车速下降,这是发动机制动,刹车时配合发动机制动,可把刹车效率发挥至最大。
如果拉下离合手把,发动机制动的性能就浪费掉了,应该被它承当的那部分刹车力,全都由刹车卡钳来承担了,增加了刹车系统的负担。
如果是想要刹停,只有当发动机转速降至接近怠速才拉下离合,防止发动机熄火。
对于没有配备ABS的车型,不要踩死后刹车,车子减速时,重心前移,前轮对地的压力会增大,后轮则减小。压力小了则最大静摩擦力随之减小,换句话说后轮很容易抱死,也就是打滑,打滑会导致摔车。不过后轮抱死导致摔车的概率没有前轮抱死那么大,如果前轮抱死了,除非车子站得绝对直车把方向绝对正,否则可以说是必摔。
不过话又说回来,制动时车子重心前移,对前轮的刹车是有帮助的,它不会那么轻易抱死,反而是刹车的主力。重刹车的时候要前后配合,这样刹车力道才能最大化,至于前几分后几分就不必细究,又不是行车电脑,你不会知道自己使出的力道是几分。总之提醒自己,后轮容易抱死,不能踩太重,刹车的大部分力道由前刹车给出。后轮真的很容易抱死。
我们要知道摩托车刹车的真谛,是让车子停,而不是让轮子停。也许会认为,哪怕轮子停了车子没停还在地上摩擦,这也是能做到的让它最快停下来的方法了。
一旦车轮抱死,它就失去抓地力,同时也失去变换方向躲避危险的能力,就只能听天由命了。所以配备ABS的车型,ECU会刚好把刹车力度控制在就快要抱死又差那么一点点还没抱死的区间内,既让制动阻力达到最大又保证车轮正常转动,所以买车最好带ABS的,别说什么小排量没必要,都很有必要。
这里要说的就是ABS不是万能的,比如下雨天,湿滑路面,冬天结冰路面,泥沙路面等复杂路况,可以有效的防止因为车轮锁死导致打滑。但是,ABS不是缩短刹车距离,防止摔车的装置。有时根据路面情况,刹车距离还长;转弯或者掉头情况下车身倾斜制动的横向打滑是无法控制的。所以说,转弯时一定要减速,不管是否安装有ABS。
大家对在急加速超车时要降挡还是要升挡?我们大多数观点也许是挡位越高速度越快,对此有什么不同看法,欢迎留言评论。
原创文章,作者:cesifu,如若转载,请注明出处:http://www.cesifu.com/article/47688.html
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