基于全球定位系统的典型重车行驶性能

通过基于全球定位系统的实际调查,得到了不同比功率、不同装载情况下的重车行驶性能曲线.研究发现,当坡度为2%、坡长为800m时,空载、实载、超载的重车速度分别下降5,13,20km·h-1;坡度为3%时,对应的数值分别为5,25,44km·h-1.与美国通行能力手册中的典型重车行驶曲线对比发现,在相同的比功率、坡度为2%情况下,我国重车的速度比美国重车小10km·h-1,而超载车辆的速度则较美国重车小30km·h-1;在坡度为3%情况下,对应的数值分别是11,36km·h-1.

Performance of Typical Heavy Vehicle with Globe Position System

the performances of typical heavy vehicles were collected by an investigation with Globe Position System. The influence rules of gradient and loading situation were studied. The result shows: when the gradient is 2% and slope length is 800 meter, the speed drops of empty, fully loading and overloading heavy vehicle are 5km?h-1, 13km?h-1, and 20km?h-1 respectively, the values turn out to be 5km?h-1, 25km?h-1, and 44km?h-1 when the gradient is 3%. Comparison between performance curves of heavy vehicles in China and American Highway Capacity Manual shows: When gradient is 2%, the speed of fully loading heavy vehicles in China is 10km/h lower than heavy vehicles in America while the speed of overloading heavy vehicle is 30km/h lower; when the gradient is 3%, the number is 11 and 36 respectively.