推荐回答(5个)
其实是因为刹车会分为线性刹车和非线性刹车,所谓的“刹车软”就是非线性刹车,也就是说脚踩制动踏板的力度与实际的制动效果不成正比,需要踩的更深才能达到制动的效果。
刹车的软硬一般都和汽车的调校有关,日系车的刹车大多偏软,它的优势就在于适合城市里的拥堵路面行驶,因为在城市里开车很少会有需要一脚将刹车踩到底的情况。“软”刹车代表汽车在中低速行驶的时候,更容易把控制动力,特别是在堵塞的城市道路中,跟车会更加方便。

第一,先检查刹车片是否过度磨损,一般中高档轿车都带有刹车片磨损报警功能,一旦刹车片磨损接近临界值,仪表板上就会点亮相应的报警灯,即使没有这个功能的轿车,在刹车片磨损到临界值时,刹车盘会和刹车片预留的金属部分接触,发出异响,提醒驾驶人应该检查更换刹车片了。

第二,检查刹车总泵和分泵是否存在内部泄露的情况。刹车总泵内部是由若干个皮碗通过刹车踏板挤压制动液,制动液把力传递到分泵,推动刹车片摩擦刹车盘产生制动力。如果总泵和分泵内部皮碗磨损,导致压力内泄,会造成刹车变软的感觉。

第三,刹车变软自我调节方法
1、发动汽车,等待怠速稳定(2-3分钟左右);
2、深踩刹车到底,一定要使劲;
3、两秒钟后将手刹拉起,用力脚刹不要松等待几秒钟;
4、然后慢慢松脚刹,最后再放手刹。
建议您去4S店进行现场检查及排除。
1、系统内有空气,自由间隙过大,制动液品质不良,沸点低,刹车时产生气泡、总泵、分泵密封不良,卸压。
2、汽车刹车系统又称汽车制动系统。刹车系统作用是:使行驶中的汽车按照驾驶员的要求进行强制减速甚至停车;使已停驶的汽车在各种道路条件下(包括在坡道上)稳定驻车;使下坡行驶的汽车速度保持稳定。
3、刹车总泵属于汽车刹车系统,功能作用主要是提供刹车助力,只有车辆发动机启动后才有刹车助力效果,公交车和货车等大车采用气泵助力系统,小汽车采用油泵助力系统,主要的油刹刹车总泵为真空助力泵,在总泵助力的情况下,驾驶员控制分泵油压作用于刹车压力时踩刹车踏板的力度可以轻松很多,若燃气车没有启动发动机,那么即使用尽力,踩刹车踏板也无法踩到底。
4、行车制动装置的功用是使正在行驶中的汽车减速或在最短的距离内停车。而停车制动装置的功用是使已经停在各种路面上的汽车保持不动。但是,有时在紧急情况下,两种制动装置可同时使用而增加汽车制动的效果。有些特殊用途的汽车和经常在山区行驶的汽车,长期而又频繁地制动将导致行车制动装置过热,因此在这些汽车上往往增设各种不同型式的辅助制动装置,以便在下坡时稳定车速。

刹车软有几种原因:1.系统内有空气,2.自由间隙过大,3.制动液品质不良,沸点低,刹车时产生气泡。4总泵、分泵密封不良,卸压。5.制动液与原来的制动液不是同一品牌、同一型号的,二者发生了化学反应,产生了腐蚀性物质,腐蚀了制动总泵和分泵处的胶圈,导致总泵或分泵密封不良,产生卸压。建议您去4S店进行现场检查及排除。
汽车刹车距离变长是什么原因很多车主说自己的爱车制动距离变长、刹车变软了,不知道怎么回事;常见刹车总泵、盘、片之类的我就不提了,我告诉您容易忽视的这两点!1,刹车油2,刹车软管强度不够
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