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DEPARTMENT OF MECHANICAL ENGINEERING , KNIT,

SULTANPUR

A SEMINAR

Presented byDEEPAK SAXENA

Roll No. 1110440019

AIR SUSPENSION SYSTEM

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Introduction

Role of Air Suspension System

Principle Of Air Suspension

Components of Air Suspension

Types Of Suspension

Advantages

Conclusion

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The automatic air suspension system is an air-operated,microprocessor controlled suspension system. This systemreplaces the conventional coil spring suspension and

provides automatic front and rear load leveling. The airbags, made of rubber and plastic, support the vehicle loadat the front and rear wheels.

SirWilliam Brush is the father of suspension system inautomobiles.

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The main role of air suspension system are as follows:

It supports the weight of vehicle .

Provides smoother ride for the driver and passengers i.e. acts as

cushion.

Protects your vehicle from damage and wear .

It also plays a critical role in maintaining self driving conditions.

It also keeps the wheels pressed firmly to the ground for traction .

It isolates the body from road shocks and vibrations which would

otherwise be transferred to the passengers and load.

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Principle :-When a tire hits an obstruction, there is a

reaction force. The size of this reaction force depends on the

unsprung mass at each wheel assembly.

In general, the larger the ratio of sprung weight to

unsprung weight, the less the body and vehicle occupants

are affected by bumps, dips, and other surface imperfectionssuch as small bridges. A large sprung weight to unsprung

weight ratio can also impact vehicle control.

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Sprung mass :-Sprung mass (weight) refers to vehicle

parts supported on the suspension system, such as the

body, frame, engine, the internal

components, passengers, and cargo.

Unsprung mass :- Unsprung mass

refers to the components that followthe road contours, such as wheels, tires,brake assemblies,

and any part of the steering and suspension not supported by

the springs.

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There are three fundamental components of air

suspension system .

The air supply

Air bags

Height control valves

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The below figure shows Horizontal/Vertical Acceleration:

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FRONT REAR

INDEPENDENTNON

INDEPENDENTINDEPENDENT

NON

INDEPENDENT

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Excellent Suspension & Comfort to passengers

Fully Automatic Level Control

Good handling Shields the vehicle from damage

Keeps the tires pressed firmly to ground

Easy To Service

Lifting & Lowering Function

Increases life of vehicle

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From the whole discussion in suspension system, I observe thatsuspension system is like a white blood cell .As white blood cell

provides energy to our body to fight against diseases or viruseswhich try to destroy or try to decrease our life ,in the similar waysuspension system provides the energy to a vehicle to protectitself from damaging, increasing life of the vehicle ,increases thehandling, increases comfort of passengers and many more. So, according to me if you remove the suspension system, then

you feel like in bull- cart in Audi , Mercedes types luxurious cars.The only difference is speed. So, the scope of Suspension System is Too Bright.

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