Braking structure and working principle of the hot

2022-08-07
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The braking structure and working principle of trailer brake

the braking performance is one of the main performances of the vehicle. Good braking performance is an important guarantee for traffic safety, which is directly related to the safety of people's lives and property. With the rapid development of China's economy and the continuous improvement of people's consumption level, automobile demand will show a diversified trend. In particular, there will be more and more demand for RV that can provide all-round services. However, due to the structural characteristics of the touring car itself, it is more difficult to brake, especially the rear trailer. Its braking performance directly affects the braking performance of the whole vehicle., Therefore, the design of a complete braking system is of great significance for vehicle safety

this paper mainly studies the use of electromagnetic braking on the touring car and the use of Simulink of MATLAB to establish the mathematical model of the system and carry out simulation calculation. Through the research on the growth mode of trailer braking force, braking deceleration, braking distance and the force on the drawbar, it further compares the advantages and disadvantages of trailer braking performance under the two control modes, It is expected to provide some theoretical basis for the design of automotive electromagnetic brake control system. Technically, it is also very clear that iedrich Mohs proposed to use 10 minerals to measure the hardest and softest objects in the world

the trailer brake studied in this paper mainly adopts circuit controlled electromagnetic brake, which belongs to a type of drum brake. It is mainly composed of electromagnet, driving lever, brake circuit assembly, lever fulcrum, friction ring, etc

it can be seen from figure L that this type of electromagnetic brake is obviously different from the ordinary drum brake in that it has an electromagnet that can generate driving force. Its working principle is: when the vehicle is running normally, the electromagnet rotates with the trailer axle. When the vehicle is braked, because the inertia sensor detects the braking action of the tractor, a full connection is provided in the control circuit to indicate that the setting of "breakpoint ratio value" is too large and stable, and there is a voltage limited by the maximum value to the DC electromagnet. As a current flows through the electromagnet circuit, the electromagnet immediately generates a magnetic force. When the magnetic force is large enough, the electromagnet is adsorbed on the friction ring, and through the lever action, the leading path of the drum brake is opened. When the friction plate of the leading path contacts the brake drum, the brake starts. After leading the way to brake, the force is transmitted to the rear brake road through the ejector rod. Due to the lever principle, the force transmitted to the rear brake road is several times of the braking force of the front road. At the same time, due to the large accumulation of friction plates in the rear road, the braking force generated will be many times of the magnetic force generated by the electromagnet. The rear road also provides the braking force

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