An Automatic Pneumatic Bumper for Cars is a safety enhancement system that automatically extends a pneumatic bumper in the event of an impending collision. The system uses ultrasonic or IR sensors to detect obstacles at a predefined distance and triggers a pneumatic actuator to push the bumper forward, absorbing impact and reducing damage to the vehicle and passengers.

The concept is designed to minimize accident severity during low and medium-speed collisions, especially in city traffic conditions.

Parts Used:

1. Pneumatic Cylinder – extends and retracts the bumper
2. Air Compressor – provides pressurized air for the pneumatic system
3. Ultrasonic / IR Sensors – detect objects or vehicles ahead
4. Microcontroller (Arduino / PIC) – processes sensor data and controls the actuator
5. Solenoid Valve – controls airflow to the pneumatic cylinder
6. Bumper Frame (Extendable) – impact-absorbing structure connected to the actuator
7. Relay Module – switches compressor and valves
8. Power Supply / Battery – 12V DC for vehicle integration
9. Mounting Frame & Guide Rails – for smooth bumper movement