CRASH WARNING AND AUTOMATIC STOPPING OF AUTOMOBILE



INTRODUCTION:

Auto safety has evolved from seatbelts and airbags that cradle and cushion the body in an accident to telematics systems that provide automatic crash notification and send help right away. more carmakers are now offering safety technology that intervenes before a crash to help minimize occupant injury and damage to a vehicle or even avoid an accident altogether.


Through the use of sensors, cameras and onboard computers, these crash prevention systems warn the driver of a potential accident, better prepare the car and occupants for a collision and, in some cases, automatically apply the brakes if the driver doesn't act in time to avoid a crash.

Though the technology first appeared on luxury cars, crash prevention systems have started to trickle down to more reasonably priced vehicles. Examples include the Adaptive Collision Warning with Brake Support available on the 2010 Ford Taurus and the City Safety feature on the 2010 Volvo XC60.


STEPS IN PRECRASH SYSTEM:


1> The sensors installed in the system calculates the obstacle distance from the vehicle and it manipulates the data
2> The sensor sends the data to the system which actuates the buzzer system if the distance between the obstacle and vehicle is less.
3> The motor installed in the system vibrates the driver seat,so that the driver pays attention to the situation.
4> Finally the automatic braking system applies brakes,if the driver fails to do the same and the vehicle is stopped at a safe distance.


ADVANTAGES OF PRECRASH SYSTEM :

1> The number of road accidents can be reduced to a great extent.
2> The mental stress on the driver is reduced.
3> Loss of human lives due to road accidents can be reduced to a great extent.
4> Damage to the goods being transported can be minimised.
5> The situation of traffic congestions can be avoided.