This document discusses different types of vehicle suspension systems and their components. It describes classifications of suspension as solid axle, independent, passive, and active systems. The functions of suspension systems are listed as absorbing shocks, controlling the vehicle, providing comfort, protecting parts, and reducing driver stress. Vibration types like yawing, rolling, and pitching are explained. Suspension components include springs, shock absorbers, and mechanical joints. Electronic suspension systems can choose ride modes, control vehicle height constantly, and improve handling.

2. I. Classifications of suspension system
II. Name the functions of suspension
III. Vibrations of vehicle & components of suspension
IV. Electronic suspension

3. Classifications
Suspension
Solid Axle
Passiv
e
Independent
Active
I-Beam
Leaf
Spring
MacPherson
Electronic

4. F u n c t i o n s
1. Absorb road shocks and reduce the vibrations.
2. Install the tires on road to better control the car.
3. Passenger comfort and keep the luggage save.
4. Protect the parts of vehicle.
5. Reduce the stress on the driver.
Safety
Comfort
Handling

5. V i b r a t i o n s

6. Yawing
This movement occurs when the vehicle is exposed to a sharp
deviation while driving for whatever reason.

7. Rolling
This happens when the vehicle is moving on uneven road or when
subjected to one of the wheels falling into the hole the spring will
expanding and in the other side shrinks.

8. Pitching
When the vehicle is traveling at high speed on an unpaved road the
body of car vibrate the front axle in a different direction from the
back.

9. Acceleration reaction & Braking reaction
Who can remember Newton's third law !?

10. Components of the suspension system
1- Springs
2- Shock absorber
3- Mechanical joints

11. Springs
It is has ability to change its shape under impact, it is
important item in any suspension system
Most popular types:
1- Steel springs
2- Air springs
3- Hydraulic springs

12. Steel springs
there are two shapes:
# Leaf spring
it's made of steel and has flexibility qualities,
formation of several leafs.
It uses in a trucks

13. # Coil spring
this type is used in most small cars and install with
shock absorber
together (We call it MacPherson ).

14. Differenttypesofcoilspring

15. Pneumatic springHydraulic spring

16. Shock absorber
There are two shapes from it:
Single acting cylinder Double acting

17. Mechanical joints
# Control arm
it has a triangle shape one side hold the tire and
another two side fixing with the chassis.

18. # Stabilizer
it is rod has a shape like later (U) and purpose
for it to get the balance when you take a turn
left or right.

19. Electronic circuit

20. C o m p o n e n t s

21. C o m p o n e n t s

22. Sensors related with
Electronic suspension
 Steering Sensor Speed Sensor Throttle Sensor Height Sensor

23. Compare between pneumatic & hydraulic
Pneumatic Hydraulic
Circuit
Type
Cost
durability
and
reliability
Open loop Close loop
Cost less It costs
more
Less durability more powerful

24. Features of e-suspension
1- able to choose the mode of suspension
(Comfort - Normal - Sport)

25. Features of e-suspension
2- able to control the level

26. Features of e-suspension
3- The height of vehicle is constant

27. Features of e-suspension
4- Better control when you curving

28. Features of e-suspension
5- Reduce vibrations
Braking reaction

29. Normal .VS. Electronic