Ride in the car trembling to doubt life! What to do? Suspension is important!

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Whether it is the online vehicle evaluation or the standard words sold when they buy, you can always hear the names of "McPherson", "multi-link", "torsion beam" and so on, for consumers who do not have professional automotive knowledge, these terms always seem too professional, this article mainly explains the common types of suspensions on the market, and explores how to be a good suspension tuning.

What is suspension?

Automotive suspension is a car with elasticity, connecting the frame and axle of the device, it is generally composed of elastic components, guide mechanism, shock absorbers and other components, the main task is to alleviate the impact transmitted from the uneven road to the frame, to improve the comfort of the ride. Common suspensions include McPherson suspension, double wishbone suspension, multi-link suspension, etc.

A typical suspension system consists mainly of elastic components, guide mechanisms and shock absorbers. Elastic elements are in the form of leaf springs, air springs, coil springs and torsion bar springs, while the current automotive suspension system mostly uses coil springs and torsion bar springs, and some advanced models use air springs.

Classification of suspensions

In general, depending on the structure, the suspension system of the car can be divided into two types: independent suspension and non-independent suspension. Independent suspension means that the wheels on each side are individually suspended to the frame or under the body through the elastic suspension system. Its advantage is that it is lightweight, which reduces the impact of the overall body and improves the adhesion of the wheels. The complex structure, high cost, and inconvenient maintenance are its shortcomings.

Non-independent suspension is when the wheels are connected by an integral frame, and the wheels, along with the axle, are suspended under the frame or body by an elastic suspension system. Its advantages are simple structure, low cost and convenient maintenance. However, it is relatively poor in comfort and handling, and is more used in vans and buses.

Currently mainstream suspension systems

1. McPherson-style independent suspension

The McPherson suspension is the most common suspension system at present, and it is also a relatively mature suspension. Its design structure is simple, the weight is lighter, the space occupation is small, and the space layout of the engine is more convenient, and the shock absorption performance is relatively strong. The disadvantage is that its stability is slightly worse, and it is currently mainly used on the front suspension of family cars.

2. Multi-link independent suspension

Multi-link suspension is the use of various linkage devices to connect the wheels to the body, and it is currently more common to connect 4 to 5 connecting rods. This independent suspension system is also the best performing suspension design at present, and of course the cost is higher. The wheel positioning is automatically tuned for excellent maneuverability.

3. Double wishbone independent suspension

The double wishbone independent suspension is actually a wisharm on the basis of the McPherson suspension, and the main role is that the steering force of the wheels is borne by the wishbones, and the shock absorption part of the components only undertakes the task of shock absorption. Due to the addition of an extra wisharm, its stability and strength are stronger than McPherson, but it also occupies a little more space for the ride, and the cost is higher. Therefore, it is used less in smaller family cars.

What is a good suspension tuning

First of all, let's talk about two misunderstandings: 1, the harder the suspension, the better the handling; 2, the softer the suspension, the better the comfort.

1, the harder the suspension, the better the maneuverability

Many people think that the harder the suspension of a car, the smaller the roll of the corner, the higher the cornering limit, so it is concluded that its handling will be better, but this understanding is biased.

In the automotive industry, the handling of a vehicle is called stability, which is handling stability. The stability of a car is judged according to whether the vehicle can firmly grasp the ground, not through the body posture of rolling. As long as the vehicle can firmly grasp the ground, no matter how large the roll does not affect the stability.

The significance of small roll is mainly to enable the driver to feel a better sense of security when cornering, and to enhance the subjective level of feeling.

2, the softer the suspension, the better the comfort

The softer the suspension, the better the comfort is also a misunderstanding. For example, the suspension of the bus is very soft, but when crossing the potholed road, the shaking and bouncing of the bus believe that everyone feels it, which is that the suspension is soft but not comfortable.

The comfort of the vehicle should be directly related to the spring mass, non-spring mass, spring strength coefficient, compression and rebound damping of the shock absorber. Truly comfortable suspension tuning should be able to eliminate the vibration in time, first dissolve and then absorb, no excess vibration, no additional resonance, there will be no excessive roll. It can be filtered regardless of the size of the vibration.

So a really good car suspension should be both comfortable and handling at the same time, too extreme will produce certain problems. Of course, theory is never better than actual feelings, and it will be more worth buying to find a model that can meet your driving experience through test driving.

summary:

Suspension as a vehicle comfort and handling carrier, the importance of self-evident, the current mainstream McPherson suspension, double wishbone suspension, multi-link suspension, etc. have a good performance, and the front McPherson rear multi-link suspension collocation is also the choice of many models at present, the overall performance is also tested by consumers. In the same suspension type, suspension tuning is the difference, should not be simply through the softness of the suspension to judge the good or bad, but choose to take into account the comfort and control of the suspension tuning, of course, the most important thing is their own driving experience.