How to solve the mismatch of semi - hanging car owner?

In recent years, emission standards of heavy-duty diesel vehicles have been constantly upgraded, technical requirements have been constantly improved, and old models have been replaced at a relatively fast pace. Car owners have entered a new peak period of vehicle replacement. But most trailer owners in the change of car, only replaced the tractor, semi trailer generally will not be replaced at the same time. This leads to a problem: the primary hang does not match.

Simply put, the main suspension mismatch refers to the mismatch between the technical configuration of the tractor and the semi-trailer, among which the most obvious is the mismatch of the braking system. For example, the vehicle brake is not good, no matter how to replace the brake disc, brake drum or pump valve, the effect is not good; Or the vehicle brake system appears early wear, but can not find the corresponding reason; Or in the process of driving the tractor brake, the semi-trailer is still in the forward arch, causing the push head, even directly in the turn when the vehicle rollover, and so on.

Thus, it can be seen that the mismatch of the main hanging has a very great impact on the use of vehicles, which not only affects the attendance of vehicles, consumes time and money, but also is not conducive to driving safety.

It is worth noting that, in addition to the existence of ordinary trailers, some hanging vehicles, such as the vehicles of express companies, need to frequently replace the trailer, but the technical status of the trailer is not exactly the same, and the mismatch of the main hanging is more common.

Then, the main brake system does not match, there are several cases? DARO trailer axles are briefly listed as follows:

1. Poor matching of ABS system.

At present, the new tractor-trailer on the market is generally forced to install ABS system, most or brand ABS, but some owners of the original semi-trailer, or is a hybrid ABS, or not installed ABS, or has failed to old ABS, can install brand ABS few.

In this case, when the vehicle braking, because of not good braking effect, braking distance will become larger; Secondly, it is easy to push the head phenomenon, especially under emergency braking; In addition, the ABS system of the main car can prevent the wheel lock, "roller sliding" brake action, but the wheel of the semi-trailer directly lock, tire loss of grip prone to sideslip phenomenon, easy to lead to vehicle out of control accident.

In addition to causing danger, the mismatch of main hanging ABS is also easy to cause the driving wheel of the main car to be in the state of brake wear for a long time, resulting in early excessive wear.

2, privately modified "brake king".

In previous installments, we looked at how the Brake King works. Modified "brake king" after, although the subjective feeling of the owner seems to be greater braking strength, but it is easy to affect the coordination of the main suspension brake system. Especially for the trailer using the automatic adjusting arm, the use of "brake king" will seriously damage the function of the automatic adjusting arm, so that it appears failure phenomenon, resulting in the trailer brake system early wear or brake failure and other consequences.

3. The EBS system does not match.

With the continuous improvement of tractor configuration, more and more vehicles are equipped with EBS system. Many owners do not agree, think that as long as the trailer mounted on the ABS system can be used with the EBS of the main car. In fact, EBS only with ECS collocation, can play a good braking effect.

EBS is controlled by electrical signal, so the braking response will be faster. If the main vehicle is EBS and the trailer is ordinary ABS, it is very likely that the main vehicle will respond first and the trailer will respond later when braking, which may lead to the situation of pushing the head.

In addition, if EBS is installed in the main vehicle, but the trailer is not installed, the EBS system will automatically brake the wheel inside the vehicle to ensure the safety of the vehicle when the turning speed of the vehicle is too fast. However, because the trailer is not installed, it cannot synchronize the movements of the main vehicle, so it will push the main car forward, resulting in rolover.

Therefore, if the main car with EBS system, then the trailer had better be equipped with EBS, which can not only improve the braking comfort, but also improve the stability of bending.

According to the requirements of the new version of the national standard, disc brake and air suspension, if coupled with EBS system, not only can improve the response speed of the braking system, ensure the stability and reliability of the braking force output, so that the vehicle in the fastest time to stop smoothly, but also reduce the degree of wear of the braking system, extend the service life of the relevant parts. To make EBS play its best function, it must be matched with high-quality products of high specifications. DARO disc trailer axle is a special disc brake axle for trailer, made of high-strength alloy material, strong bending and torsional resistance, sensitive braking, fast response speed, and EBS system cooperation, more safe braking.