推荐回答(2个)
踩刹车抖要分什么情况,如果是高速(80迈以上)踩刹车方向盘有轻微的震动是正常的,因为有路面的阻力系数影响和车身减速度影响。但是通常在60迈左右慢慢踏下刹车踏板,首先从脚踏板上传出抖动,随着踏力加重方向盘也开始摆动,就要测量一下刹车盘的跳动量了,如果盘的边缘跳动量大,但法兰的跳动量正常,那就要更换刹车盘片就可以了。如果法兰的跳动量过大,那么仰角轴承、法兰、刹车盘片就需要一起更换掉。因为此时的刹车盘也会偏磨变形的。如果刹车时车头都在晃动,那就要检查一下方向拉干球头和下支臂球头是否有旷量了。
换装新的刹车套件后,由于刹车制动力加大,刹车盘加大.在使用原厂刹车系统的时候轻微的故障和轴头轴承的公差是不会出现刹车发抖或只有无感轻微发抖.但是换装加大刹车系统后通过杠杆原理就会把这种故障放大出来,如果抖动非常严重请参考以下各种情况以便自行排除故障。1
安装新的刹车套件,试车时猛踩刹车未按照说明书进行磨合,有可能引起刹车发抖现象产生.刹车系统套件在使用初期因刹车碟尚未与刹车片完全吻合,打孔碟盘在踩下刹车时产生轻微的抖动及喔喔音现象,上述状况属于正常,尤其半金属和全金属刹车皮磨合时间更长,待刹车碟盘刹车片完整磨合后此现象自然消失;
一般而言,此抖动及喔喔音现象在行驶500-2000公里内将会消失,磨合时请按照正常的驾驶方法,千万不要误认为新换的刹车系统就会有立竿见影的刹车效果,先连续性的做一些低速的刹车测试,然后增加速度再做另一连续性的刹车测试,不要试图猛踩刹车让刹车锁死,只有慢慢的增加速度不断的重复以上步骤才可以达到完美的磨合。(产品磨合期会因车重气候车主操作方式及刹车前后配置的不同产生磨合时间之快慢长短)。故障排除:需要经过正常的磨合才能发挥最好的效果,试车时正常驾驶行车,加速后不要猛踩刹车开皮。
2.刹车套件刹车盘和桥码平行度公差超过正常范围.(如果是量产套件,这种问题非常少,如果有问题整个一批产品都有问题.如果自己匹配桥码和二手刹车盘一般出现问题都是这个原因,尽量购买套装产品);故障排除:调换刹车盘或转接桥码.购买原装位量产套件。3.检查原厂轮圈是否有轻微变形失圆,是否动平衡出现问题,检查轮胎胎壁厚度是否均匀(多见于使用公里数很长的旧胎和暴力操作经常大脚使用刹车系统车友的轮胎);检查左右轮胎胎压是否平衡;故障排除:轻微状况,调换前后轮胎轮圈试试.如果问题消失即排除故障.到轮胎店判断检查轮胎轮圈的故障是否存在.重新做轮圈动平衡四轮定位,更换新的轮圈轮胎
4.检查原厂羊角轴头是否有变形,检查羊角轴承是否有轻微磨损公差变大.检查悬挂连接球头是否磨损松动.
故障排除:更换新的轴头轴承和连接拉杆球头。5.检查原厂羊角和刹车套件桥码连接部分面是否平整.如果原厂羊角边螺丝孔地方有毛边,请用锉刀平整毛边,故障则消失;
6.换装加大刹车套件后,高速行驶猛踩刹车会出现轻微发抖则属正常情况;由于高速行驶的汽车产生非常大的惯性作用.加大刹车后刹车力度也是非常大在这种情况下要把一个高速前进的物体制动下来.所产生的摩擦振动通过悬挂和方向机的连动部分传动到方向盘也是非常明显的!同时由于高速行驶然后紧急制动这个时候轮胎也会轻微失圆.所以产生轻微抖动则属正常范围!7. 刹车盘过大直径会引起发抖故障出现。刹车盘越大刹车制动力就会越强这也是基本理论,但是不要忽略了一个问题,就是原厂的轴承是有间隙的,而且轴头和羊角耳朵的平行度也不可能绝对平行度。机械加工都是有公差的。例:按照300MM刹车盘来说,如果中心轴有0.01的跳动公差,放大到刹车盘的外沿部分就会出现0.2MM的跳动范围。也就是20倍的放大倍率。
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