The use of green energy is becoming increasingly more important in today’s world. Therefore, electric vehicles are currently the best choice for the environment in terms of public and personal transportation. Because of its high energy and current density, lithium-ion batteries are widely used in electric vehicles. Unfortunately, lithium-ion batteries can be dangerous if they are not operated within their Safety Operation Area (SOA). Therefore, a battery management system (BMS) must be used in every lithium-ion battery, especially for those used in electric vehicles. In this work, the purpose, functions and topologies of BMS are discussed in detail. In addition, early battery models along with the hardware and system designs for BMS are covered in a literature review. Then, an improved battery model is introduced, and simulation results are shown to verify the model’s performance. Finally, the design of a novel BMS hardware system and its experimental results are discussed. The possible improvements for the battery models and BMS hardware are given in the section on conclusions and future work. A battery management system (BMS) is proposed which is used for electronic vehicle that manages a rechargeable battery (li-ion), such as monitoring its state using Arduino UNO microcontroller. Temperature sensor, voltage sensor and current sensor is uses to measure the values of Battery will be display on LCD and also will be upload into the Thingspeak cloud along with date and time using ESP8266 WI-FI module.   The controlling device of the whole system is ARDUINO UNO microcontroller. The integrated modules to the controller are temperature sensor, voltage sensor, current sensor, Battery pack, ESP8266 WI-FI module, cooling fan and LCD Module. Here DC MOTOR works as a vehicle. Microcontroller will display the voltage, temperature and current values on LCD module as well as it will upload into the Thingspeak cloud along with date and time. If the temperature value crosses the set limit, then Arduino will turn ON the cooling fan to keep the battery cool. To achieve this task microcontroller loaded program written in embedded C language.

The major building blocks of this project are:

• Li-ION Battery.
• ARDUINO UNO Microcontroller.
• Temperature sensor.
• Voltage sensor.
• Current sensor.
• LCD display.
• ESP8266 WI-FI module.
• Cooling fan.

  Software’s used:

• Embedded C programming.
• Arduino UNO for dumping code into Micro controller.
• Express SCH for Circuit design.

     

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