汽车的制动性是汽车的主要性能之一。汽车车轮安装防抱死装置就是为使制动性能更完善,行驶更为安全所采用的一项新措施。一、设置防抱死装置的理论基础如图1所示,目前一般汽车前后轮制动力比值有固定关系的β曲线及理想制动力矩曲线。图中 Fu_1、Fu_2—前后车轮的制动器制动力,(?)—附着系数;(?)_o—同步附着系数;β线—制动器制动力分配系数线,一般两轴汽车的前后制动器制动力之比为一固定值。β=Fu_1/Fu_1;Fu—汽车总制动器制动力;Ⅰ曲线—满载汽车理想的前后 Braking is one of the main features of a car. Car wheel anti-lock device is installed to make better braking performance, safer driving by a new measure. First, set the theoretical basis of anti-lock device shown in Figure 1, the current general car front and rear wheel brake force ratio has a fixed relationship between β curve and the ideal braking torque curve. Figure 2, the front and rear wheels Fu_1, Fu_2-brake braking force, (?) - adhesion coefficient; (?) _o-synchronous adhesion coefficient; β-brake brake force distribution coefficient line, For a fixed value. β = Fu_1 / Fu_1; Fu - Braking force of the vehicle’s total brake; Ⅰ Curve - ideal for full load vehicles