automobile safety

Introduction :Introduction :• Automobile Industry is undergoing a big

transformation never seen before.

• Today car’s are not only used for personal transport but they are encompassed with

Seating arrangement more comfortable than your recliner.

Safety features making your car safer than a tank.

• Globally car companies spend nearly $36 billon annually for influencing new technologies into their cars.

•Some of the big advancement in Automotive Industry in last 10years have come in the area of safety.

Recent Advancement in Braking Technology have led to :

• Shorter stopping distance.

• Increased Control in panic situation.

• More control on curved turns.

Traction Control Traction Control :• Next Generation ABS.• Uses ABS as a Building block.• Can be as a combination of ABS & Engine control

Mainly the system has to control some or all conditions :• Retard or Suppress the spark to one or

more cylinders.• Retard fuel supply to one or main

cylinder. • Break one or more wheel.• Close the throttle, if the vehicle is

fitted by wire throttle.

Air Bags Air Bags :

•What’s the main function of the System?

Actual Working Actual Working :

Airbag Before Collision Airbag Before Collision Airbag After Collision Airbag After Collision

Inflation unit Inflation unit ::•How does it INFLATES?How does it INFLATES?

EffectivenessEffectiveness :

This system has proven its effectiveness• In frontal crashes reduction in

drivers death reduced by nearly 14%.

• Passenger side airbags reducing death by nearly 11%.

• NHTSA estimated reduction in risk by nearly 85% with the combination of seat belt and airbags compared than only seatbelt i.e 60% .

Different types of Airbags :Different types of Airbags :

DRIVERS SIDE DRIVERS SIDE AIRBAGAIRBAG

• An airbag is a vehicle safety device.

• It is a type of occupant restraint system that consists of a flexible fabric bag.

• The airbag module is designed to inflate rapidly then quickly deflate during a collision or impact with another object or a sudden deceleration

PASSENGER AIR BAG PASSENGER AIR BAG Curtain Airbags Curtain Airbags

Limitations Limitations :: Little to protect against side collisions.

Disabled by turning off the ignition key.

 Designed to deploy once only

•Introduction

•Advancement in the system•Working

• An anti-lock braking system (ABS) is an automobile safety system that allows the wheels on a motor vehicle to maintain tractive contact.

• This prevents the wheels from locking up and avoiding uncontrolled skidding.

Advancement in the Advancement in the system :system :

• Since initial widespread use in production cars, anti-lock braking systems have been improved considerably.

• Recent versions not only prevent wheel lock under braking, but also electronically control the front-to-rear brake bias.

• This function, depending on its specific capabilities and implementation, is known as electronic brake force distribution(EBD) .

Working :Working :• Conventional Braking

Whole process is controlled by driver applied break paddle pressure;

• ABS Braking Electric Sensors monitor the wheel speed ABS microprocessor Compares the wheel speed Control valve is energized.

Advantages Advantages ::

• Achieves the Shortest Stopping distance.• Better chance on Steering around

obstacle• Reduced risk of skidding.

Disadvantages Disadvantages ::

• Precautions should be taken while driving.

• Proved less effective on gravel road or road compacted by snow.

SUMANTHSUMANTH GITAM GITAM

UNIVERSITYUNIVERSITY