1.引言 随着汽车工业的发展,工业化程度的提高,汽车给环境所带来的污染问题和能源利用问题越来越受到重视。电动汽车的出现,使得这些问题得以解决。这也是近几年来电动汽车迅速发展的原因。电动汽车与以燃料为能源的汽车的主要区别是它以蓄电池为能源,因此它的电子控制部分的设计等方面与其他汽车 1. INTRODUCTION With the development of automobile industry and the improvement of industrialization, the problem of pollution caused by the automobile to the environment and the issue of energy utilization have drawn more and more attention. The advent of electric cars made these problems solved. This is why the rapid development of electric vehicles in recent years. The main difference between electric vehicles and fuel-powered cars is that they use batteries as their energy source, so the design of its electronic control section and other vehicles