With the vigorous development of the new energy industry

the Battery Management System (BMS) has become one of the key technologies of electric vehicles. The core functions of BMS cover accurate estimation of battery SOC

real-time monitoring of battery status

and guidance of driving behavior to optimize experience. Affected by road conditions

user behavior

battery aging

and other factors

its accuracy decreases with use. In order to improve the performance and extend the life of the battery pack

a new management system is urgently needed. Based on this

this paper proposes a cloud service architecture electric vehicle battery management system based on the research progress of cloud service systems and battery management systems. This system integrates edge BMS and cloud management. The edge BMS collects and stores battery data in real time and short term

while the cloud stores it for the long term and conducts in-depth analysis. Using cloud computing

it realizes fault diagnosis

life assessment

prediction

residual value assessment

and charging strategy optimization. This system improves battery safety and reliability

prolongs life

reduces accidents

and has high practicality and reliability.