Heavy Vehicle Suspension System

Although the final performance of a heavy vehicle suspension system is extremely similar to suspension system of a passenger car, but each of these systems takes a relatively different process to accomplish its purpose. The car's suspension system, both in heavy vehicles and in passenger cars, has a significant impact on occupant comfort. Therefore, it can be argued that a significant part of the experience of driving a car is affected by the car's suspension system.

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As already mentioned, the components of a heavy vehicle suspension system are different from the components used in a small vehicle system. Although this difference does not change the purpose of the system; but it has a significant impact on its functional process. The difference between the suspension systems in different cars is due to the interaction of the wheels on one axis. This communication, in any form, is done with the aim of optimizing the movement of the car on the road surface. This optimization leads to the smooth movement of the vehicle and the control of the pressures caused by the movement.

What is a Heavy Vehicle Suspension System and What does it do?

In most cases, the suspension system of heavy vehicles is of the hydraulic type. Heavy vehicles put more pressure on the roads due to their weight, and as a result, the road puts more pressure on them. If the car's suspension system fails to perform its functions properly, the pressure from the road to the car will also affect the occupants.

The most important task that the suspension system performs is to provide a comfortable trip for the passengers and, of course, to protect the main components of the car against the pressures from the road. The suspension system manages the pressure from the road and the pressure on the road, in addition to protecting the occupants and pieces of the vehicle, it also affects the acceleration, braking and longitudinal movement of the vehicle.

Basically, the weight of the car is measured once before the installation of the suspension system and again after the installation of the suspension system. The weight measured in these two cases must be compatible with each other. This harmony is achieved based on several factors such as shock absorber coefficient, suspension angle and body and spring tightness. If this harmony observed properly, the suspension system can create a great driving experience for the occupants by car weight bearing, shock absorbing, converting pressure to vibration, maintaining command position, correcting the angle of the wheels, creating a proper contact surface between the wheels and the road and protecting the car from the pressure of the road.

Components of Heavy Vehicle Suspension System

Regardless of the configuration of the suspension system in various vehicles, these systems generally consist of six pieces. These components include the tuber, the strut, the balance shaft, the shock absorber, the bush and the طبق!! متوجه نشدم چیه . In different types of suspension systems, each of these components is modified, removed or added according to their specific characteristics. As already stated, the structure of most heavy vehicles uses a hydraulic suspension system.

Due to the increasing use of hydraulic brakes, the use of these systems in heavy vehicles also increased. Although cable and lever brakes are still used in some heavy vehicles, but most vehicles use hydraulic brakes and their suspension system is hydraulic. The design of this system is based on the law of hydraulic pressures. According to this law, liquids distribute pressure between cycles by their own flexibility. With the development of the automotive industry, the application of hydraulic law in car design has increased. The increasing use of hydraulic mechanisms in cars has led to the emergence of various hydraulic systems such as hydraulic suspension, hydraulic steering and of course automatic gearbox.

Today, hydraulic systems are found in all parts of the automotive industry. In the past, only Citroën Company used these systems. Citroën engineers by understanding the laws of pressure in liquids, designed an electric valve for the inlet of the cylinder. A valve that could measure the amount of oil in each cylinder by communicating with a central processing unit (CPU). The central processing unit by analyzing the amount of oil in each cylinder, measures and adjusts the appropriate height for the suspension system. Aside from high adaptability, the hydraulic system also shows great resistance. Extensive flexibility leads to a high degree of adaptability and resilience. On the other hand, the traditional principles of operating this system will not reduce its efficiency. All of these reasons make hydraulic suspension systems widely used in heavy vehicles and even military vehicles.

What are the Common Problems of Heavy Vehicle Suspension System?

As already pointed out, the impact of the suspension on the overall performance of the car is extremely wide. Each possible problems that may occur for the suspension system of heavy vehicles can affect a part of the vehicle in some way. If the angle of your wheels is not adjusted, your car is slipped , or your steering wheel is difficult to control, it is possible that part of your car's suspension system which is related to the adjustment of the steering wheel, has a problem.

If the pressure and vibration on your car is too high while driving on rough roads, your car's shock absorbers are probably in trouble. Due to the excessive pressure on the suspension system of heavy vehicles, the possibility of damaging the car shock absorbers is considerably high. Therefore, it can be argued that shock absorbers need more care than other pieces of the suspension system of heavy vehicles.

If your car does not turn smoothly, if the steering wheel is hard to steer, if the suspension system of your car is squeaking, if your suspension system is lying on the ground or you are going up and down a lot in the bumps, then the ball joint of your car has a problem. Installing a ball joint in the suspension system of heavy vehicles is a bit difficult and specialized; but, in general, the ball joint is a replaceable piece. The ball joints control and manage lots of pressure by allowing the wheels to rotate and control the oscillations caused by the car going up and down. Therefore their health is important for the proper operation of the car.

Also point out that the balance bar of a heavy vehicle suspension system may wear out. If this part of the suspension, which connects the wheels to the steering wheel, wears out, the ride of the car will be completely defective and not only the shape of the wheels will change, but also the handling of the car will be entirely disrupted. If your steering wheel loosens or clacks, your wheels get out of control while accelerating, or they accelerate at high speeds, your car's suspension is out of balance. It should be noted that the replacement and repair of suspension system pieces for heavy and light vehicles is a specialized task.

Conclusion

The suspension system of heavy vehicles is designed to withstand the maximum pressure from the road. However, the driving style and taking care of these strong systems can ensure their long-term health. Do not forget that the health of these systems means your comfort and peace of mind while driving and the key vehicle structures will not be damaged in rough roads.