This document discusses an ultrasonic sensor-based automatic braking system that aims to avoid vehicle collisions. The system uses an ultrasonic sensor to detect objects in front of a vehicle and sends a signal to a microcontroller unit. The microcontroller then signals the braking unit to automatically apply the brakes based on a braking logic fed into the microcontroller, with the goal of avoiding collisions during vehicle operation.

1. ULTRASONIC SENSOR BASED AUTOMATIC BRAKING
COMFORT
ABSTRACT
The industry strategy for automotive safety systems has been evolving over the last 20 years.
Initially, individual passive devices and features such as seatbelts, airbags, knee bolsters,
crush zones, etc. was developed for saving lives and minimizing injuries when an accident
occurs. Later, preventive measures such as improving visibility, headlights, windshield
wipers, tire traction, etc. were deployed to reduce the probability of getting into an accident
.Now we are at the stage of actively avoiding accidents as well as providing maximum
protection to the vehicle occupants and even pedestrians. Systems that are on the threshold of
being deployed or under intense development include collision avoidance systems. In this
dissertation, advanced ideas such as pre-crash sensing, ultrasonic sensor is used to sense the
object in front of the vehicle and gives the signal to the micro controller unit. Based on the
signal received from the ultrasonic sensor, the micro controller unit sends a signal to the
braking unit for applying the brake automatically as per braking & throttle control logic fed
in to the micro controller unit.
To avoid the collision between the vehicles during the period of running conditions and
automatically applying the brake by means of actuators, Distance measuring sensors &
Electronic control module.

2. BLOCK DIAGRAM: