5 Major Functions of Suspension System You Should Know.

The functions of Suspension system – The automobile frame and body are mounted on the front and rear axle not directly but through some form of springs and shock absorbers.  This is done to dampen road shocks transmitted to the same by the wheels as they roll over the road.  All these parts which perform this function are connectively called a suspension system.

In this article, I will discuss five major functions of suspension system.  These functions make the driver and the co-passengers feel comfortable during the ride.


Functions of Suspension System

The suspension system in a vehicle includes spring socket and their mountings.  Your car suspension helps to ensure that the driver and the co-passenger feel smooth and safe on road bums and other Kinetic impacts.  When you drive on the road your car tyres naturally rule over various bumps or frictional surfaces.

When you encounter that resistance on the road you will feel to move up and down at a perpendicular angle. So, to reduce these frictional surfaces the car suspension system is introduced. The 5 major functions of Suspension System are-

  1. To prevent road shocks.
  2. To preserve the stability.
  3. Safeguard the occupants.
  4. Provide good road holding.
  5. Maintaining proper steering geometry. 

Each of these points is elaborated separately.

#1. To Prevent Road Shocks

The main function of suspension is to prevent the road shock from being transmitted to the vehicle frame. The road is full of bumps and resistance. When someone drives a car, he should want relaxation during the ride. A suspension system is used to provide that relaxation to the passenger.

The primary components responsible for absorbing shocks are the springs. They are typically coil springs or leaf springs. When a vehicle encounters a bump or uneven surface, the springs compress to absorb the impact energy.

Without the suspension system, the bumpy roads can lift you up and down during the driving of your vehicle. This system not only ensures comfort but also protects you from unwanted hazards on the roads.

Read More- Top 7 Signs of Power Steering Failure You Should Know.

#2. To preserve the stability

The suspension system helps maintain consistent contact between the tires and the road surface. This is crucial for traction, especially during acceleration, braking, and cornering. It contributes to better handling and control of the vehicle.

When you ride a vehicle, the stability is the most important factor for safety. When you give a direction to your vehicle, you will expect that the wheels will move in that direction only. Without the suspension system, this direction stability can be hampered and unwanted things can happen.

So preventing stability can help you achieve better and safer steering comfort.

#3. Safeguard the Occupants

The primary function of the suspension system is to absorb shocks and vibrations generated by uneven road surfaces, potholes, and other obstacles. By doing so, it prevents these shocks from directly reaching the vehicle’s occupants. This is crucial for protecting passengers from discomfort, fatigue, and potential injury.

The suspension system, along with other components like tires and insulation, helps minimize the transmission of road noise into the vehicle cabin. Reduced noise levels contribute to a quieter and more comfortable ride, enhancing the overall driving experience for occupants.

Read More- 8 Different Ways to Increase Life of the Tire. 

#4. Provide Good Road Holding

The suspension system contributes to better handling by keeping the tires in contact with the road surface. This is crucial for optimal steering response and control, especially in emergency situations. Improved handling enhances the ability of the driver to navigate safely and avoid potential hazards.

If there are bumpy roads, without the suspension, these tires can also be lifted upward with the chassis. This will give a certain jerk to the driver or the passengers in the vehicle. Also, it is important to make decent and even contact with the road, to provide directional stability and better handling.

The tires are also one type of shock absorber, as they absorb a minimum amount of frictional force from the road. So, the tire pressure, tire trades, tire shoulder, etc., can help to absorb the shock from the road.

#5. Maintaining Proper Steering Geometry

Maintaining the steering geometry is the main and important function among these major functions of the suspension system. The steering geometry helps the tires and the chassis to maintain in good condition. Camber, Caster, Toe in and Out comes under the steering geometry system.

So, the geometry of the suspension system, including the arrangement of control arms, linkages, and other components, also plays a role. Properly designed suspension geometry ensures that the wheels maintain good contact with the road surface, improving stability and handling.

Conclusion on Functions of Suspension System

In summary, suspension systems prevent road shocks by effectively absorbing and dampening the impact of uneven surfaces. This not only enhances ride comfort but also plays a critical role in vehicle safety, stability, and overall performance. If you like the article then please share.

Frequently Asked Questions(FAQ’S)

How do springs contribute to the functions of the suspension system?

Springs in the suspension system absorb and store energy when compressed, helping to support the vehicle’s weight and mitigate the impact of bumps and uneven surfaces.

Can a well-designed suspension system enhance braking performance?

Yes, a properly functioning suspension system aids in weight distribution, preventing excessive weight transfer during braking and improving overall braking performance.

Can a malfunctioning suspension system affect tire wear?

Yes, a poorly maintained or malfunctioning suspension system can lead to uneven tire wear, affecting both the performance and lifespan of the tires.


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