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为了能充分利用每一车轴的垂直荷重进行制动以得到理想的制动效果,制动系前、后轴制动器摩擦力矩的比值λ在任何情况下都应等于前、后轴垂直荷重的比值β。但汽车是在不同负荷、不同路面、不同速度的复杂条件下工作,除非装用复杂的调节装置,否则上述要求是不可能完全满足的。一般设计汽车制动系的方法都是使车辆以某种负荷(空载或满载)在某一特定路面条件下能得到理想的制动效果,表征这种特定路面特点的附着系数称为同步附着系数或理想附着系数(?)。通过(?)值的合理选用,保证在经常使用的范围内制动效果能基本满足要求。(?)选定后,结合整车参数按照下列关系即可定出前、后轴制动器摩擦力矩的比值λ。
In order to take full advantage of the vertical load of each axle for braking to achieve the desired braking effect, the brake system front and rear brake friction torque ratio λ in any case should be equal to the ratio of the front and rear axle vertical load ratio β . But the car is in different loads, different roads, different speeds of complex conditions, unless equipped with complex adjustment device, or the above requirements can not be fully met. The general design of the vehicle braking system is to make the vehicle with a certain load (no-load or full load) in a particular road conditions to get the desired braking effect, the characterization of this particular pavement characteristics of the adhesion is called synchronous attachment Coefficient or ideal adhesion coefficient (?). Through the reasonable selection of (?) Value, it is guaranteed that the braking effect can basically meet the requirements in the range of frequently used. (?) Is selected, combined with the vehicle parameters in accordance with the following relationship can be set before and after the shaft brake friction torque ratio λ.