Research on Optimization of Computer Digital Electric Vehicle Battery Management System

Abstract

In this paper, a distributed management system based on battery integrated management unit and battery monitoring unit is proposed by using fieldbus communication. In order to solve the problem of high voltage disturbance in battery unit measurement, a voltage controlled constant current power supply was proposed. The internal temperature of all-electric bus battery was simulated by computer aided theory and numerical method, and the maximum temperature of battery under different working conditions was compared. The battery pack integrated manager also has an RS-485 communication interface, which is used for data interaction with the battery cell detection module, and the communication interface is used for data interaction with the entire vehicle integrated controller and is also equipped with an LCD display and a small keyboard, which can display the battery voltage and the battery status in real time. Through the research of this project, the battery can be in the best working condition in bad weather. It effectively improves the service life of the power battery and extends the service time of the vehicle.