缓速器对汽车制动稳定性的影响  

Influence of Retarder on Automobile Braking Stability

作　　者：周厚建[1] 

机构地区：[1]武汉理工大学汽车工程学院

出　　处：《汽车工程师》2013年第2期32-34,共3页Automotive Engineer

摘　　要：装有缓速器的汽车在制动时,其制动性不能用理想制动器制动力分配曲线(I曲线)来评价,但对I曲线稍作修改并结合传统的分析方法,仍可以对汽车的稳定性进行分析。文章通过前后轮制动器制动力的关系式,得出关于路面附着系数的一元二次方程,通过该方程解的情况来分析制动稳定性。分析结果表明,为了保证汽车制动时的稳定性,施加在后轮上的缓速器制动力不宜过大,并且通过适当调整制动器制动力分配系数,可以提高汽车的制动稳定性。When vehicle equipped with retarder is braking, its braking stability performance cannot be evaluated by the ideal braking force distribution curve （curve I）, but it also can evaluate the braking stability after the ideal braking force distribution curve is modified. Road adhesion coefficient quadratic equation is obtained in the paper based on the braking force relationship between front and rear wheels, and analyzing braking stability by the solution of the equation. The results show that the retarder braking force should be small in order to guarantee the braking stability and adjusting the braking （orce distribution coefficient can improve braking stability.

关 键 词：汽车 缓速器 制动力分配系数 制动稳定性 路面附着系数 

分 类 号：U463.5[机械工程—车辆工程]