Research On SOC Monitoring And Charge Discharge Monitoring And Discharge Monitoring System For New Energy Vehicle Battery

The problem of car industry caused by environmental pollution and energy consumption is cannot be neglected with the rapid rise of automobile industry and better life in society.In order to solve the dual problems of environmental pollution and energy shortage,the state has invested a lot in the research of new energy vehicles.This paper focuses on the research of battery management system in new energy electric vehicles.The power of new energy electric vehicles comes from the battery,and the battery is also the most vulnerable part of safety accidents.Therefore,one of the focuses research on new energy electric vehicles is the battery management system(BMS).The research of vehicle battery state of health(SOH)and state of charge(SOC)can be intuitive to reflect the status of battery to guarantee the safety of the car battery.Monitoring battery effectively can improve the efficiency of the battery and ensure the safety of the battery during charging and discharging.The battery management system is a particularly important part of the new energy electric car,and it’s a crucial role in the efficient use of energy,reasonable consumption of resources and optimal battery life,even the safety of the vehicle and passengers.The main functions of the battery management system include voltage/temperature acquisition,battery charging and discharging management,battery power switch management,battery status management,state of charge(SOC)estimation,state of health(SOH)estimation,battery voltage current leakage management,on-board battery safety management,vehicle inter system communication management,optimization battery capacity and long service life of the battery.If the car battery is efficient,stable,and safe,it depends on the management of the battery management system.To improve the efficiency of the car battery,the cycle of life,the efficiency of the recharging,the safety and stability,we need to study a scientific and reasonable battery management system.This topic mainly studies the monitoring system of new energy electric vehicle in charging and discharging process,real-time monitoring battery cell voltage,battery temperature,charging and discharging current,insulation resistance,state of charge(SOC),state of health(SOH),various kinds of alarm and other information.According to this testing information,the new energy electric vehicle is effectively controlled to ensure the safe operation of the vehicle and the effective utilization of the energy source.The battery SOC monitoring and charge-discharge monitoring system for new energy vehicles is mainly composed of main control module,such as sub-control module,battery detection module and insulation detection module.The system controls the four modules separately,and finally obtains a complete battery management system.It designs a set of upper computers monitoring software for data monitoring and fault inquiring.The hardware and software parts of system can achieve the corresponding function according to the expected target,and the overall operation of the system is in good condition through testing and analyzing.The system is to collect the status parameters and the battery parameters of the electric car through the hardware.The software analyzes the data parameters to determine the safety condition of the vehicle,the operating status,the cell battery status and system failure information.The system achieves the expected goal,which lays a foundation for the system’s subsequent optimization and improvement.