地面-车辆力学是第二次世界大战以后才发展起来的,在二次大战期间,曾经使用了一些越野汽车,发现其中有一些车辆的通过性比较好,但多数不理想,这就对“只要是全轮驱动车辆就可以越野行驶”发生了怀疑。当时发生的问题第一是双胎的驱动轴行驶阻力太大;第二是在某些原来认为没有什么大问题的土壤上,某些车辆发生沉陷,有的则完全无法行驶。 Ground-vehicle mechanics developed after World War II. During the Second World War, some off-road vehicles were used and some of them were found to be passing well but most were not ideal. Is all-wheel-drive vehicles can be off-road driving "occurred suspicion. The first problem at that time was that the driving resistance of twins was too high. The second reason was that some vehicles were subsided on some soils that were originally considered as having no major problems, while others were completely unable to travel.