How does the train stop?
As an important part of modern high-speed railways, the parking process of EMUs involves complex control systems and precise technical operations. This article will combine the hot topics and hot content on the Internet in the past 10 days to introduce in detail the parking principles, technical details and related data of high-speed trains.
1. Basic principles of motor vehicle parking
The stopping process of the train mainly relies on the train control system (TCS) and braking system. The following are the key steps for parking a high-speed train:
| steps | Description |
|---|---|
| 1. Deceleration signal reception | The train receives a deceleration or stop signal through wireless communication or track circuits. |
| 2. Power cut off | The driver or the autonomous driving system cuts off power output and the train begins to slide. |
| 3. Braking system starts | Electric braking (regenerative braking) and air braking act simultaneously to gradually reduce vehicle speed. |
| 4. Precise parking | Through speed sensors and position feedback, ensure that the train stops at the designated location. |
2. Classification of EMU braking systems
The braking system of the train mainly includes electric braking and air braking. The following is a comparison between the two:
| Brake type | Principle | Advantages | Disadvantages |
|---|---|---|---|
| Electric braking (regenerative braking) | Convert kinetic energy into electrical energy and feed it back to the grid | Energy saving and environmental protection, reducing mechanical wear and tear | Less effective at low speeds |
| Air brake (friction brake) | Deceleration through friction between brake pad and brake disc | Stable braking effect, suitable for low speeds | Mechanical parts are prone to wear and tear |
3. Technical details of EMU parking
During the parking process of the train, the following technical details are particularly important:
1.The intervention of autonomous driving systems: Modern high-speed trains mostly use automatic driving systems (ATO), which can accurately control the parking position according to preset programs, and the error is usually controlled within ±0.5 meters.
2.Real-time calculation of speed and distance: The train control system will calculate the remaining distance and required deceleration in real time to ensure smooth stopping.
3.Multiple safety redundancies: EMU braking systems are usually designed with multiple redundancies. Even if one system fails, safe stopping can still be achieved through other means.
4. The correlation between hot topics on the Internet in the past 10 days and train parking
Here are the hot topics and data related to train parking:
| hot topics | Related content | heat index |
|---|---|---|
| High-speed rail autonomous driving technology | Discuss the application of automatic driving system of high-speed trains in parking | 85 |
| regenerative braking technology | Analyze the energy-saving effect of electric braking during train parking | 78 |
| railway safety | Discussing the safety redundancy design of train braking system | 92 |
5. Future development trends of EMU parking
With the advancement of technology, EMU parking technology is also constantly innovating. The following are possible future directions:
1.Intelligent parking system: Achieve more precise parking control through artificial intelligence and big data analysis.
2.New brake materials: Develop more wear-resistant and efficient brake materials to improve braking performance.
3.Fully automatic driverless driving: Further reduce human intervention and achieve fully automated parking operations.
Through the above analysis, we can see that EMU parking is a highly technical process involving the collaborative work of multiple systems. In the future, with the continuous development of technology, the parking of high-speed trains will be safer, more efficient and more environmentally friendly.
check the details
check the details
en
