The chassis suspension method is indeed an important parameter of the car performance index, which determines the driving experience and safety performance of the car. The chassis is composed of four parts: the drive train, the driving system, the steering system and the brake system. The function is to support and install the automobile engine and its various components and assemblies to form the overall shape of the car and to receive the power of the engine to make the car produce motion. To ensure normal driving. The suspension, which is an important part of the chassis, is a force transmission device connecting the chassis and the wheel. The three parts of the elastic element, the damper and the force transmission device serve as a cushioning, damping and force transmission function for the ride comfort. Stability and handling stability have the greatest impact.
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With the development of modern automobile technology, the vehicle suspension has developed from the original non-independent suspension to the independent suspension, and then derived from the independent suspension, such as McPherson, double fork and many other types, now multi-link suspension is becoming The preferred choice for the rear suspension of high-end cars.
The non-independent suspension uses two wheels to be mounted on an integral axle. However, since one rod is directly connected to the wheels on both sides, the impact and vibration of one side of the wheel must affect the other side of the wheel. The handling stability and comfort performance are weak, and at the same time, due to the mutual influence of the wheels on the left and right sides, the probability of turning over when turning is increased. At present, all kinds of light passenger cars that we can often see still choose this kind of structure with less maneuverability and comfort. The wheels on both sides of the car with independent suspension are connected independently of the body. When one side of the wheel is impacted and vibrated, the impact force can be absorbed by the elastic element, so that it does not affect the wheel on the other side, showing good ride comfort. Stability and handling stability.
A variety of types have emerged, including McPherson, multi-link, two-link, four-link, tow arm, etc. Among them, McPherson is one of the most popular independent suspensions today. For the front wheel of a car. Multi-link suspension systems are favored by luxury cars, such as the Audi series and the BMW series. It adopts different link configurations (usually three-link, four-link, five-link) to automatically adjust the camber angle, the toe angle and the rear wheel to achieve a certain steering angle when the suspension is contracted, so that the suspension is compressed. The wheel positioning can be actively adjusted, and the design freedom can be completely matched and adjusted for the vehicle. Therefore, the multi-link suspension can maximize the grip of the tire and improve the handling limit of the whole vehicle. Multi-link suspensions are the most expensive in terms of manufacturing and development costs, so they are often used on the rear axles of mid- to high-end cars.
Compared with the same class of models, the new Tianzhu's suspension method has obvious advantages. The front suspension adopts the well-shaped suspension beam, which can improve the lateral rigidity of the suspension beam and enhance the control safety performance. The rear suspension system realizes the high camber rigidity and the left and right flexible deflection by the multi-link suspension beam of the independent suspension. The optimization improves the response performance when changing the driving route, improves the upper and lower stroke of the tire, increases the ride comfort, and adopts the double anti-vibration suspension beam, which also reduces road noise.
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