DC Drive System for BJD6100-EV Electric Bus

Control method and working characteristics of DC drive system for BJD6100 EV electric bus are studied. The fundamental control method for this drive system is introduced, and a concept of magnetic poles modulated by continuous current is presented. Imitating the method for measuring the speed characteristic of gasoline engine, the working characteristics of the DC drive system is acquired, and this characteristic is based to give a tractive effort speed characteristic which can be used to predict the dynamic performance of the BJD6100 EV electric bus. The practicability of the working characteristic is proved by experiments.