This project presents the design and implementation of a Battery Management System (BMS) integrated with a wireless power transmission system for electric vehicles (EVs). The system utilizes inductive coupling through transmitting and receiving copper coils to transfer power wirelessly, eliminating the need for physical connectors. The received alternating current (AC) is converted into direct current (DC) using an AC-DC converter and supplied to charge the EV battery. The BMS plays a crucial role in monitoring and controlling battery parameters such as voltage and charging status to ensure safe and efficient operation. Voltage sensors continuously measure battery conditions, while an Arduino UNO microcontroller processes the data and controls system components like relays, LCD display, and LED indicators. A toggle switch enables manual control of the charging process. This integrated approach enhances charging convenience, reduces wear and tear of connectors, and improves safety by minimizing human intervention. The system demonstrates an efficient, reliable, and user-friendly solution for next-generation wireless EV charging with intelligent battery management.

  The main objectives of the project are:

• To design a wireless power transmission system using inductive coupling for EV battery charging.
• To develop an efficient Battery Management System (BMS) for monitoring battery parameters.
• To measure and control battery voltage using voltage sensors for safe charging.
• To implement an AC to DC conversion unit for converting received wireless power into usable form.
• To use Arduino UNO for controlling and automating the overall system operation.
• To integrate a relay-based control mechanism for safe switching of charging circuits.
• To provide real-time monitoring through an LCD display and LED indicators.
• To ensure safe, reliable, and efficient charging by preventing overcharging and voltage fluctuations.
• To develop a user-friendly system with manual control using a toggle switch.
• To demonstrate an innovative and contactless charging solution for modern electric vehicles.

  The major building blocks of the project are:  

• TWO 1AH Transformer.
• TWO voltage sensors.
• Relay.
• Four wireless power Transmitting Coils.
• Arduino UNO Microcontroller.
• DC motors.
• One Receiving Coil.
• Rechargeable Battery.
• Toggle Switch.
• LCD display.

    Software’s used:   

1. Arduino IDE for compiling and dumping code into controller
2. Express SCH for Circuit design.

 

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