ABSESPBOSCH版课件

1,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统-ABS/ESP系统,2,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动安全与控制-汽车上的制动系统,3,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动系统概述,一、功用：1、使汽车减速停车；2、下坡时限制车速；3、可靠停放原地。二、制动系的组成及分类：1、组成：供能装置、控制装置、传动装置、制动器,4,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,2、制动系分类,（1）按功用分：行车制动装置、驻车制动装置、辅助制动装置。（2）按制动能源分：人力制动系、动力制动系和伺服制动系。（3）按传力介质分：机械传动、液压传动、气压传动。,制动系统概述,二、制动系的组成及分类：,5,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动器,一、车轮制动器1、车轮制动器功用：利用摩擦产生的制动作用，使车轮减速停车。2、组成：旋转部分、固定部分和张开（夹紧）机构。按旋转部分分：鼓式和盘式；按张开机构分：轮缸式和凸轮式。,6,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,（一）、鼓式车轮制动器,1、轮缸式制动器结构、工作过程及分类,7,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,2、摩擦片及制动蹄鼓板,8,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,3、制动器底板,9,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,4、制动器轮缸,10,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,5、简单非平衡式制动器（单领蹄制动器）,*利用摩擦片在蹄鼓之间的摩擦力制动，使汽车减速停车。*前进时，前蹄助势，后蹄减势。*蹄鼓之间的间隙称为制动间隙。可用偏心销或调整凸轮调整。,11,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,5、简单非平衡式制动器（单领蹄制动器）：,12,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,6、平衡式制动器（双领蹄式制动器）,*两个制动轮缸呈中心对称。*前进时，两蹄都是助势蹄。即单向助势。*若两个制动轮缸装双向活塞，可实现双向助势。,13,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,6、平衡式制动器（双领蹄式制动器）,14,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,7、平衡式制动器（双向助势平衡式制动器）,15,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,8、自增力式制动器,*前进时，前蹄助势，后蹄增力。因此后蹄摩擦片比前蹄摩擦片长。*改变推杆的长度可以调整制动间隙。*制动效能比较：简单非平衡最差，自增力最好。,16,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,8、自增力式制动器,17,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,三种车轮制动器性能比较,1、制动效能：自增力式制动器大于平衡式制动器；平衡式制动器大于简单非平衡式制动器。2、制动平顺性：简单非平衡式制动器好于平衡式制动器；平衡式制动器好于自增力式制动器。,18,9、轮缸式制动器的间隙自调装置,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,19,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,（二）盘式车轮制动器,20,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,1、制动盘,21,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,2、制动钳,22,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,（1）定钳盘式制动器,制动钳不动。油缸较多，油易汽化。矩形密封圈的作用：*密封；*复位弹簧；*自动调节制动间隙。,23,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,（1）定钳盘式制动器,24,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,盘式制动器的间隙自调原理-不完全回位,25,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,盘式制动器的间隙自调原理-不完全回位,26,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,（2）浮钳盘式制动器,液压反作用力使钳盘移动。轴向、径向尺寸小，不易产生气阻。刚度差，易产生偏磨。,27,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动块磨损报警装置（声音式）,盘式制动器的特点,（1）优点：散热好、抗水侵能力强、效能稳定平顺性好、间隙自调及结构简单易维修。（2）缺点：制动所需液压力高、防污能力差、兼驻车制动时结构复杂。,28,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动安全与控制系统-ABS系统,29,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动防抱死ABS,一、带有ABS制动防抱死系统车辆有哪些优点？,二、ABS制动防抱死系统包括哪些部件？,三、ABS制动防抱死系统工作过程？,30,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动防抱死ABS,二、ABS制动防抱死系统包括哪些部件？,31,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动防抱死ABS,二、ABS制动防抱死系统包括哪些部件？,32,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,制动防抱死ABS,三、ABS制动防抱死系统工作过程？,33,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,三通道ABS系统,34,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,四通道ABS系统,35,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,电子制动系统简介,36,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,电子制动力分配EBV,EBV,ABS,在车轮部分制动时，EBV就开始起作用，控制单元根据转速传感器车速传感器信号计算轮速及滑移率。如果后轮滑移率大于某个设定值，则液压单元调节后轮制动力，使后轮制动力下降，以保证后轮不会先于前轮抱死。EBV的控制与传统的制动力分配（比例阀）相比，EBV保证了较高的车轮附着力及合理的制动力分配。同时EBV没有增加任何零件而是通过软件来控制，降低了成本。当ABS开始工作，EBV停止工作。,37,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,EBV工作过程减压,EBV的升压与保压与ABS工作情况一致。但减压控制则有不同。当后轮有抱死倾向时，后轮的常开阀关闭，常闭阀打开，车轮压力降低，与ABS不同的是：此时液压泵不工作，降压排放出来的制动液暂时储存在低压蓄能器中。,38,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,EBV工作过程踏板释放后,当制动结束后，制动踏板松开，总泵内的制动压力为零，此时再次打开常闭阀及常开阀，低压蓄能器的制动液经常闭阀、常开阀流回制动总泵，低压蓄能器排空，为下次ABS或EBV功能做好准备。,39,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,加速防滑装置主要是在地面附着系数较低，而负荷相对较大的情况下发挥作用。当驱动轮出现打滑时，车辆牵引力下降，此时ASR功能被触发。ASR功能执行进行打滑驱动轮的制动，降低打滑量，降低发动机转速，变速器向低档切换，通过一系列降速增扭的动作，实现控制目的。如果是两侧驱动车轮同时出现上述情况，只有ASR进行工作，如果两侧驱动车轮的附着系数不同，那么车轮打滑量也不相同，此时在ASR工作的同时，EDS被激活，共同参与，辅助车辆起步。,ASR工作原理,40,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,EDS工作原理,41,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,EDS常规制动,在常规的ABS系统基础上，EDS要增加两个电磁隔离阀和两个液压阀，如下图所示。在制动过程中，由制动总泵产生压力，液压阀在压力的作用下关闭，电磁隔离阀常开，制动压力通过电磁隔离阀及常开阀进入制动分泵，实施常规制动。,42,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,EDS加压过程,43,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,EDS保压过程,44,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,EDS减压过程,45,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,轮速信号及速度传感器,1=探头2=永磁铁3=线圈4=极针5=脉冲轮,46,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,轮速信号及速度传感器,1、这个传感器与上一个传感器有什么区别？2、这个传感器的好处是什么？3、这个传感器还可以用于什么地方？,47,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,轮速信号及速度传感器,通过调整波形的幅宽可以看到波形中的细节,48,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,故障列表,转速传感器故障：单传感器故障则ABS/EDS功能关闭，EBV功能保留K47亮双传感器故障则ABS/EDS/EBV功能关闭，K47及K118亮刹车灯开关F故障：ABS/EDS/EBV功能关闭，K47及K118亮液压回油泵故障：ABS/EDS功能关闭，EBV功能保留，K47亮液压单元N55故障：ABS/EDS/EBV功能关闭，K47及K118亮,49,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,50,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,总结：,ABS制动系统的组成：ABS的组成：传感器的装配位置：ABS工作原理：EBV工作原理：ASR工作原理：EDS工作原理：,51,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,52,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP电子稳定系统,ESP是电子稳定程序（ElectronicStabilityProgramme)的简称当车辆行驶中出现险情，例如：突然一只动物突然闯入路中，ESP系统能够帮助驾驶者避免车辆出现不稳定状态。但是，ESP提供的主动安全性是有限的，不能利用其进行冒险驾驶。全神贯注地驾驶，注意路牌和交通警示，这是驾驶员的首要职责.,53,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,电子稳定程序属于车辆的主动安全.人们也可称之为动态驾驶控制系统.简单地说它是一个防滑系统.ESP能够识别车辆不稳定状态，并通过对制动系统、发动机管理系统和变速箱管理系统实施控制，从而有针对性地弥补车辆滑动。,ESP电子稳定系统,54,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP安全性意义,ESP主动安全性防止车辆侧滑发生意外事故,ESP被动安全性在事故中减少侧面碰撞发生几率,55,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP安全性意义,56,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,侧面碰撞数量/总碰撞数量=11%,侧面碰撞伤亡/总碰撞伤亡=47%,ESP安全性意义,57,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP典型工作工况,一、躲避前方突然出现的障碍物,58,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP典型工作工况,二、在急转弯车道上高速行驶,59,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP典型工作工况,三、在地面附着力不同的路面行驶,60,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,电子制动系统,ESP,61,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP工作原理,ESP在对危急驾驶情况作出反应前，必须获得两个问题的应答：,从方向盘角度传感器（1）和轮速传感器（2）得到a问题答案。,a、驾驶者想操纵车驶向哪里？,b、车辆实际驶向哪里？,从横摆率传感器（3）和侧向加速度传感器（4）得到b问题答案。,ESP控制单元进行比较,ab车辆出现危急行驶状况，需要ESP进行控制调整。,a=b车辆行驶情况正常,、当车辆出现不足转向，通过对内弧线后部车轮施加相应的制动，并对发动机和变速箱管理系统施加控制，ESP可以阻止车辆向外驶出弯道。,、当车辆出现过度转向，通过对外弧线前部车轮施加相应的制动，并对发动机和变速箱管理系统施加控制，ESP可以阻止车辆向内滑移。,62,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,不足转向,ESP控制目标,无ESP,有ESP,63,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,过度转向,ESP控制目标,无ESP,有ESP,64,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,当一辆推土机向右转弯行驶，那么内弧线履带制动而外履带加速。,ESP工作原理,65,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,无ESP行驶状况,车辆躲避突然出现的障碍物，驾驶者首先向左急打转向紧接着又向右转向。车辆由于驾驶者急打方向盘转弯而出现甩尾现象。由于车辆沿着垂直轴线转动，出现失控状态。,66,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP工作过程,67,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,ESP系统组成,BOSCH和ITT为两个ESP的生产厂家，他们ESP的设计原理和基本结构是相同的,不同的是组成元件，在备件使用上应注意其对应系统。,68,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserved,alsoregardinganydisposal,exploitation,reproduction,editing,distribution,aswellasintheeventofapplicationsforindustrialpropertyrights.,制动安全与控制系统,69,DuanYongshan|25/01/2011|RobertBoschGmbH2011.Allrightsreserve