Battery Mnangement System for LiFePO4 Battery of Inverse-Differential-Gear Hybrid System

• Main Authors: Chao-Yuan Huang, 黃超元
• Other Authors: 黃國修
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/q7pqfx

碩士 === 國立臺北科技大學 === 車輛工程系所 === 98 === This research discussed the LiFePO4 battery management system apply to Inverse Differential Gear hybrid system include four kinds driving modes (motor mode, engine mode, dual power mode and regenerative braking). Battery system is built by two parallel 288V/20Ah modules which is built by six serial 48V/20Ah battery packs. Total capacity is 40Ah. There are IGBT and SSR switching the charge-discharge circuit. According to the SOC value and voltage of two battery systems, we use efficiency and low cost microcontroller (AT89S52) as the controller protecting and controlling battery system so that having wonderful hard-software protection method. The control strategy is written by software language to add dependency. The results of research show the possible of theory and control strategy.