液罐汽车直线制动稳定性的分析

Analysis of Straight Braking Stability for Liquid Tank Truck

对液罐汽车部分装载并直线制动时,罐内液体的质心坐标和制动稳定性进行分析讨论。部分装载的液罐汽车制动行驶时,其质心位置将向前、向上转移,使汽车的同步附着系数减小,造成后桥车轮先于前轴车轮抱死,致使后桥车轮侧向附着力下降而容易发生侧滑;同时还导致前后车轮抱死间隔时间增加。为了减小液罐汽车罐内液体质心的转移对汽车制动稳定性的影响,应在结构上采取措施,尽量控制罐内液体质心的转移量,提高同步附着系数。

The centroid coordinates of liquid tank and the braking stability of a partly loaded straight running the truck are discussed. When a truck is not fully loaded, the centroid position will change forward and upward. Then the synchronous adhesion coefficient decreases, which it will bring about the rear wheels halted preceding the front wheels causing sideslip due to going down of rear wheels side adhesion and increasing the interval time of the front and rear wheels halted. In order to reduce the influence on the braking stability of the truck, the coefficient should be increased by adjusting the tank structure, and transfer of the centroid in the tank should be controlled.