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AUTOMATIC AIR SUSPENSION SYSTEM
EAST WEST INSTITUTE OF TECHNOLOGYDEPT. OF MECH. ENGG.
Aayush Prasad (1EW09ME001)
Presented by
INTRODUCTION
ROLE OF AIR SUSPENSION SYSTEM
PRINCIPLE OF AIR SUSPENSION
COMPONENTS OF AIR SUSPENSION
TYPES OF SUSPENSION
ADVANTAGES
COMMON AIR SUSPENSION PROBLEMS
CONCLUSION
CONTENTS
Sir William Brush is the father of suspension system in automobiles.
‘The automatic air suspension system is an air-operated, microprocessor controlled suspension system. This system replaces the conventional coil spring suspension and provides automatic front and rear load leveling. The air bags, made of rubber and plastic, support the vehicle load at the front and rear wheels’.
INTRODUCTION
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.
ROLE OF AIR SUSPENSION
When a tire hits an obstruction, there is a reaction force, The size of this reaction force depends on the un-sprung mass at each wheel assembly.
In general, the larger the ratio of sprung weight to un-sprung weight, the less the body and vehicle occupants are affected by bumps, dips, and other surface imperfections such as small bridges. A large sprung weight to un-sprung weight ratio can also impact vehicle control.
PRINCIPLE OF AIR SUSPENSION
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.
Un-Sprung mass :- Un-sprung mass
refers to the components
that follow the road contours, such as wheels, t ires, brake assemblies,
and any part of the steering and suspension not supported by
the springs.
DEFINITION OF SPRING & UNSPRUNG MASS
There are three fundamental components of air suspension system: .
The air supply,
Air bags,
Height control valves.
COMPONENTS OF AIR SUSPENSION
AIR SUPPLY
AIR BAGS
HEIGHT CONTROL VALVE
WORKING OF AIR SUSPENSION
The below figure shows
Horizontal/Vertical Acceleration:
TYPES OF SUSPENSION
FRONT REAR
INDEPENDENTNON
INDEPENDENTINDEPENDENT
NON
INDEPENDENT
Excellent Suspension & Comfort to passengers
Full Automatic Level Control
Good handling
Shields the vehicle from damage
Keeps the tires pressed fi rmly to ground
Easy To Service
Lifting & Lowering Function
ADVANTAGES
Air bag or air strut failure - due to old age, or moisture within the air system
that damages them from the inside.Compressor failure - Primarily due to leaking air springs or air struts
- Compressor burnout may also be caused by
moisture from within the air system coming into contact with its electronic parts.
Dryer failure - which functions to remove moisture from the air
system eventually becomes saturated and unable to perform that function
COMMON AIR SUSPENSION PROBLEMS
From the whole discussion in suspension system, I observe that suspension system is like a white blood cell .As white blood cell provides energy to our body to fight against diseases or viruses
which try to destroy or try to decrease our life ,in the similar way suspension system provides the energy to a vehicle to protect itself from damaging, increasing life of the vehicle ,increases the handling, 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.
CONCLUSION