近年来,世界各国都面临着能源危机和环境污染等问题,特别对中国来说,更是一个严重的问题。目前,中国经济迅速发展,汽车产销量和保有量有了大幅提升。车辆每年消耗大量能源,排放的尾气严重污染环境,加之我国汽车制造技术与国际先进水平还存在一定的差距,造成我国制造的汽车油耗要比国外发达国家制造的汽车高10%～30%,排放污染物要比发达国家高15～20倍。因此,我国的汽车制造业面临很大 In recent years, all countries in the world are facing such problems as energy crisis and environmental pollution. In particular, it is a serious problem for China. At present, China’s economy has developed rapidly, and the production, sales, sales and ownership of automobiles have risen sharply. Vehicles consume a large amount of energy every year, and exhaust emissions seriously pollute the environment. In addition, there is still a certain gap between China’s automobile manufacturing technology and the international advanced level, resulting in 10% -30% fuel consumption of automobiles manufactured in China than automobiles manufactured in developed countries. Emissions Pollutants 15 to 20 times higher than in developed countries. Therefore, China’s automobile manufacturing industry is facing great