What is Macpherson Multi link Twin Link Four link Torsion beam suspension?

1. Torsion beam semi-independent suspension:

Advantages: simple suspension structure and light weight; In the assembly of the whole vehicle, there is no need for rear wheel alignment, reducing assembly man-hours; It occupies a small space and is easy to obtain a large tail space; The spring damper system allows for easy matching arrangement; It is beneficial to control the motion ratio of the wheel relative to the spring damping; The torsional beam characteristics can replace the function of the stabilizer bar; During suspension movement, toe and track change slightly.

Under the lateral force condition, the camber angle becomes smaller; Good straight-line stability, low rear tire loss; By properly setting the characteristics of the elastic bushing, it is possible to reduce the brake nod.

Disadvantages: torsional stress and shear stress are produced by the torsional beam, and there is a higher stress at the welded joint, and the load on the rear bearing is limited by the strength of the torsion beam; In order to ensure driving stability, the elastic bushing connection points of the longitudinal swing arms on both sides are complex; The wheels on both sides affect each other; Poor comfort.

Cars with this suspension system generally have poor stability and comfort, but because of their simple structure and large bearing capacity, the suspension is mostly used in trucks, ordinary buses and some other special vehicles.

2. Four-link independent suspension:

Advantages: The multi-link suspension not only ensures a certain degree of comfort, but also keeps the wheels and the ground as vertical as possible due to the large number of connecting rods, and minimizes the tilt of the body as much as possible.

Maintain the maximum possible grip of the tire. Its handling performance and double wishbone suspension are indistinguishable, high-end sedans due to ample space, and focus on comfort and handling stability, so most of them use multi-link suspension, it can be said that multi-link suspension is an excellent partner for high-end cars.

Disadvantages: The multi-link suspension structure is relatively complex, the cost of materials, research and development experiments and manufacturing costs are much higher than other types of suspension, and it occupies a large space, and small and medium-sized cars rarely use this suspension for cost and space considerations.

The multi-link type is built with a stable vertical suspension

The non-independent shock absorber is stiff and relatively less comfortable, but it is more useful. The independent softness is comfortable, but not durable.

It must be a good independent suspension, torsion beam type is a common rear suspension structure, simple structure and low cost, generally used in low-end models, poor comfort, over speed bumps, uneven ground performance is extremely obvious. The double link is a relatively high-end rear overhang structure, which focuses on sports and handling, and the ride is comfortable, but it is higher.

For both suspension forms, the two-link is a bit better than the torsion beam type! But in terms of daily use, the difference between the two is not that big! First of all, although the double-link is an independent suspension, there is still a certain gap with the multi-link independent suspension, and it is a relatively simple type of independent suspension!

The comfort is better than the torsion beam, but the bearing capacity, impact resistance and durability are worse than the torsion beam, which is the reason for the structure, because the torsion beam has to bear a lot of torque in the process, so most of the materials are very strong!

Each has its own strengths and weaknesses, and the most important thing in a car is the engine and gearbox.

The H-shaped torsion beam suspension double A-arm suspension has two rocker arms, the upper and lower rocker arms, the lateral force is absorbed by the two rocker arms at the same time, and the struts only carry the weight of the body. Hence the lateral stiffness is large. Due to the use of unequal length rocker arms up and down (long at the top and short at the bottom), the wheels can automatically change the camber angle when moving up and down, and reduce the change in track and reduce tire wear.

And it can also adapt to the road surface, the tire has a large ground contact area, and has good ground attachment. But because there is an extra upper swingarm, so you need to stand in a larger space, Honda's sedan front overhang likes to use this structure, Civic is praised for its handling, the front overhang double A arm has a certain credit, unfortunately the 8th generation Civic did not follow this structure, and the use of MacPherson is regrettable for many fans.

The multi-link suspension system is divided into 5-link and 4-link. Multi-link rear suspension can achieve the best position of the caster angle of the kingpin, greatly reduce the front and rear directional force from the road surface, thereby improving the smoothness and comfort of acceleration and braking, but also ensure the stability of straight driving, when the vehicle turns or brakes, the 5-link rear suspension structure can make the rear wheels form a positive toe-in, improve the control performance of the vehicle, and reduce the situation of understeer. Many luxury sedans also use a 4-link front suspension for their front overhangs, which cleverly separates traction, braking and steering forces through kinematics, while giving the vehicle precise steering control.

Multi-link independent suspension, which can be divided into multi-link front suspension and multi-link rear suspension system. Wherein the front suspension is generally 3-link or 4-link type independent suspension; The rear suspension is generally a 4-link or 5-link rear suspension system, of which the 5-link rear suspension is more widely used. The multi-link suspension concept is much more complex than other types of suspension, and the cost of materials, research and development experiments, and manufacturing is much higher than that of other types of suspension, and it takes up a lot of space, but the comfort performance of the multi-link suspension is the best of all suspensions, and the multi-control performance is also indistinguishable from the double wishbone suspension.

Automobile suspension system refers to the general term of all force transmission connection devices between the frame of the car and the axle or wheel, which is used to transmit the force and torque acting between the wheel and the frame, and to cushion the impact force transmitted to the frame or body by the uneven road surface, and attenuate the vibration caused by it, so as to ensure that the car can run smoothly.

The suspension is the leg of the car.

It not only bears the weight of the car, but also slows down the impact of the road on the body, just like a human leg, carrying the weight of the body, and also reducing the impact of movement.

Although there is a difference between a multi-link independent suspension and a torsion beam non-independent suspension, there is no such thing as which is better and which is worse.

Although the multi-link independent suspension is comfortable, it is not rigid enough and is prone to fracture accidents. Although the torsion beam non-independent suspension is not comfortable, it has high rigidity and high stability, which can improve the handling stability.

Therefore, both types of suspension have their own advantages and disadvantages, they are only a part of the car, and they cannot completely determine the performance of the car. The overall performance of a sedan is determined by the individual systems, not by a single suspension system.

Advantages of torsion beam type non-independent suspension.

1. The left and right wheels will be implicated in each other when bouncing, and the change in the tire angle is small, so that the wear of the tire is small.

2. It is not easy to change the angle of the wheels when the body height is reduced, so that the feeling of control is consistent.

3. Simple structure, low manufacturing cost and easy maintenance.

4. It occupies less space and can reduce the height of the underfloor.

Multi-link independent suspension is better than torsion beam semi-independent suspension.

1. Answer: Multi-link independent suspension is better, the reason is that although the cost of this suspension is higher, it has better functions and is more comfortable, and can have the best handling performance while ensuring comfort.

Torsion beam semi-independent suspension is a very old structure, low cost, basically used in cheap cars and old models in the past. 3、

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Of course, multi-link is good, do you say that the suspension of the Jetta is better or the BMW 7 is better? Semi-independent suspension is actually a non-independent suspension with a torsion bar to make the left and right wheels jump and balance, thereby reducing roll and vibration, while multi-link independent suspension is connected to the frame independently of the two wheels, independent vibration, multi-link through different connecting rods to control the direction of vibration in different directions, to maximize the stability of the car.

The multi-link is good, the independent suspension is very stable, and the passability is very good, not a generation of technology.

You can't say which one is better, but you have to choose it based on your economic conditions and needs.

The multi-link is certainly much higher in terms of performance, and many premium sedans use this kind of suspension, which is the best ratio of handling and comfort.

Torsion beam semi-independent suspension should actually be said to be a non-independent suspension, but it has some independent suspension functions. Relatively economical, many** relatively low small cars use this suspension as the rear suspension.

The ride feeling between the two is indeed quite different, of course, there is no comparison. But in fact, if you just run on the city road, in fact, the torsion beam type is enough.

Multi-link is good. Because his multi-link includes three-link, four-link, five-link. Theoretically speaking, the more connecting rods, the better the operational stability, and the better the comfort of the car.

Generally speaking, most of the multi-link is four-link, which is suitable for sedans and is more comfortable. Don't buy Toyota's Camry or Highlander, they use a two-link to pass off as a multi-link, you can rest assured of other brands. The key to the shock absorption effect depends on the tuning of the shock absorption, the Japanese car is more comfortable, the shock absorption is softer, the German focus is on the control of the shock absorption, but the cornering support is better for some money, depending on your choice.

In addition, Mondeo and Regal LaCrosse, the former came out of Ford in Germany, and the latter two were developed in Opel, Germany, and the shock absorption is also relatively hard. And now that the American car has learned to be well-behaved, the shock absorption is more tough, and it turns out to be like driving a boat.

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Multi-link good, 4 kinds of linkage.

For the hinge joint of the double connecting rod, the joint joint should be significantly less than the multi-link, and the multi-link is mostly 4 or 5 connecting rods, so the multi-link is better than the double link, which should be a problem of manufacturing cost, because one less connecting rod is less than a hinge, a lot less material, less n more solder joints and reinforcing points. Double A-arm suspension as a double link, this depends on how to look, it is a more professional linkage, it is rarely seen in ordinary cars, generally only appears in racing cars or sports cars, so many car owners will choose multi-link, that is to say, multi-link is better, generally there is: suspension system refers to the whole support system composed of springs and shock absorbers between the body and tires, torsion beam rear suspension, non-independent suspension, multi-link independent suspension, can be divided into multi-link front suspension and multi-link rear suspension system. Wherein the front suspension is generally 3-link or 4-link type independent suspension; The rear suspension is generally a 4-link or 5-link rear suspension system, of which the 5-link rear suspension is more widely used.

There are many options for connecting rods, but how to compare which connecting rod is better, such as double linkage and multi-linkage, is a good comparison. For the hinge joint of the double connecting rod, the joint joint should be significantly less than the multi-link, and the multi-link is mostly 4 or 5 connecting rods, so the multi-link is better than the double link, which should be a problem of manufacturing cost, because one less connecting rod is less than a hinge, a lot less material, less n more solder joints and reinforcing points. Double A-arm suspension as a double link, this depends on how to look, it is a more professional linkage, it is rarely seen in ordinary cars, generally only appears in racing cars or sports cars, so many owners will choose multi-link, that is to say, multi-link is better, but it still depends on how you choose your model.

Generally, there are: suspension system refers to the whole support system composed of springs and shock absorbers between the body and tires, torsion beam rear suspension, non-independent suspension