The anti - lock braking processes based on logic threshold control are simulated in the environment of matlab / simulink software . the influences on logic threshold control abs by the factors such as road condition , initial velocity , the changing rate of braking torque , delay time , inertia and load are discussed at the same time 运用matlab simulink软件，对基于逻辑门限控制方法的防抱制动过程进行了计算机模拟，并分析了路面、初速、制动力矩变化率、延迟时间、转动惯量及载荷等因素对逻辑门限控制abs的影响。
Detailed contrastive simulation tests of four - phase and self - optimalizing abs control have been made and applying effects of self - optimalizing control are discussed , which establish stable principle foundation for self - optimalizing control applying to realistic abs controller . from the simulation results we can find that : automobiles which install self - optimalizing abs apparatus lock on the any road surface only when the vehicle body velocity and wheel velocity arrive at zero approximately , which is better for improving driving stability under braking . it shows anti - lock ability of self - optimalizing ; slip ratio approximates and surround the desired slip , which shows that this abs system uses fully road surface performance and retains large adhesion and braking performance is good ; braking force regulates with varies of road condition , which realizes road self - identification 通过仿真试验可以看出：在各种路面上，汽车在安装了自寻优防抱制动装置后，在车速、轮速接近为0时才抱死，这对提高汽车制动时的操纵稳定性特别有利，显示了自寻优避免车轮抱死的能力：滑移率的值基本上一直接近并且围绕着与路面附着系数相对应的滑移率上下变化，说明了该系统充分利用了路面性能，基本上保持了较大的附着力制动，制动性能较好；制动力随着路面条件的变化而相应做出调整，实现了路面自动识别的功能。
Some automobile manufacturers have already announced their plans to introduce some high technology devices such as abs ( anti - lock braking system ) , asr ( acceleration slip regulation ) and vdsc ( vehicle dynamics stability control ) on all their models , which are developed to improve vehicle - handling stability under different emergency situations by the fundamental principle that adhesion coefficient between tire and road varies as wheel ' s slip 而基于汽车轮胎与路面之间的附着性能随车轮滑动率改变而变化的机理所开发的、旨在改善车辆在不同工况下操纵性稳定性的一些高技术系统包括防抱制动( abs ) 、防滑驱动( asr )及车辆动力学稳定性控制( vdsc )系统，更是受到汽车制造商的青睐和厚爱，都在积极地加紧试制，以期更快更早地占领市场。
