Electric vehicles (EVs) often face issues related to limited battery life and dependency on manual charging, which can be inconvenient and time-consuming. There is a need for an automatic charging system to ensure continuous operation without manual intervention.
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The Auto Charging Car project aims to build an electric car model that can automatically charge itself when the battery level drops below a certain threshold. This is achieved by integrating a battery level monitoring system with an automatic charging mechanism, such as contact-based docking or wireless charging pads. The system continuously monitors the battery voltage using a voltage sensor connected to a microcontroller (like Arduino). When the battery is low, the car either automatically drives to a charging station (in an advanced model) or triggers a charging relay that connects it to the power source. This concept can be demonstrated with a miniature prototype where the car aligns itself with a charging dock or turns on charging through wireless coils. The system ensures efficient energy usage, reduces the risk of battery failure, and supports the future vision of self-sustaining electric vehicles.
The car is powered by a rechargeable battery, and its voltage is continuously monitored by a voltage sensor. When the battery voltage drops below a preset limit, the sensor sends a signal to a microcontroller. The microcontroller then activates the charging system, either by aligning the car to a charging station or turning on a wireless charging circuit or relay. Once the battery is fully charged, the system automatically disconnects the charger to prevent overcharging. This auto-switching mechanism enables continuous, unattended operation of the vehicle and mimics real-world EV infrastructure solutions.