Explore the next generation of the full carbon fiber car body subway

What is the next generation subway?

No cab – Passengers can experience the speed and passion of high-speed driving in the first row of subways from the driver’s perspective.

The windows are touch-screen displays – which buses are available for each subway station, what are the attractions and shopping malls around the site, and what news is available on that day, and you can get an answer by touching the window.

The futuristic “time and space ship” – the streamlined front, the silver and blue body, makes the car full of technology and futuristic. The application of new materials on the car body also makes the subway “fly” faster after the weight reduction.

Different screens correspond to keywords such as safety, intelligence, and environmental protection, and also correspond to technical breakthroughs such as unmanned driving, large-capacity vehicle-to-ground communication, and full-carbon fiber structure.

Recently, under the leadership of Qi Yuwen, the design manager of the “Next Generation Subway” project of the overall R&D department of CRRC Co., Ltd., the reporter embarked on the next generation subway. The car is the latest train developed by CSR Changke for the Ministry of Science and Technology’s “Next Generation Metro Vehicle Technology Research and Demonstration Application” project. The 28 breakthrough technologies of “on the train” have comprehensively improved the technical level of rail transit equipment and led the city rail. Vehicles are developing in the direction of green, energy saving and environmental protection.

Intelligent detection of obstacles “Safety belts” for unmanned subways

“Is the obstacle ahead?” “No, it works.”

In the operation of each day, the lidar and video image recognition technology should repeat the same dialogue, and the “not bothering” dialogue is a “safety belt” for the subway operation.

“We installed obstacle detection and anti-derailment devices at the front end of the subway vehicle and improved the new radar system.” Qi Yuwen introduced that the new radar system uses 16 laser beams to detect obstacles within 100 meters of the vehicle, and the problem is automatically opened. The emergency braking function stops the train from running for a short time. The detection system is very sensitive. It even identifies the wall in the curve as an obstacle. “In order for the radar to correctly identify various obstacles, we have specially configured a partner for the radar system – video image recognition technology.” Qi Yuwen said, video Image recognition technology stores non-obstacle data such as walls into the system. If there is any doubt, the radar system can help them answer.

In addition to this pair of gold partners, the fully automated driverless system is another safety barrier on the next generation of subways.

The vehicle uses the current world’s highest automation level (GOA4) driverless system. Every morning, it can automatically wake up, self-check, and out of the warehouse. After the station arrives, the train and sleep are all completed by the train. The system is independently developed by CSR Changke, and is another breakthrough in the design and manufacture of rail transit.

OLED window, large-capacity car and land communication allows passengers to swim online

“The next-generation subway uses high-capacity vehicle-to-ground communication technology to increase the wireless transmission bandwidth by 7 times. In the high-speed operation of the vehicle, it can reach 368 megabits per second.” Qi Yuwen explained the surfing on the Internet while touching the OLED window. Enjoyable technical support.

The 55-inch OLED display film integrates the window to collect the export information of each subway station, transfer bus information, surrounding scenic spots and historical sites, shopping mall discount information and so on. Browse the instant news, the video is also very smooth, not stuck.

After more than a year of research and development, CSR Changke has made breakthroughs in optimizing network protocols and designing signal anti-jamming equipment. The application of large-capacity vehicle-to-ground communication technology can not only meet the basic needs of information transmission between vehicles and vehicles, but also provide passengers with a comfortable and smooth audio-visual experience.

Full carbon fiber car body “slimming” 5 tons of energy saving 15.38%

The next-generation subway is the first train in the world to adopt an all-carbon fiber structure. The car body successfully “slimmed” 5 tons, not only saved energy, but also reduced the impact on the track. The application of new materials and new technologies has also enabled the next generation of subway trains to save 15.38%.

“As a non-metallic material, the joint of carbon fiber material is its weakest place. For its special process, we have changed many other structures on the car body.” Qi Yuwen, for example, only changed the structure of the traction beam for a month. Out of 8 sets of solutions, “We have overcome the connection weakness of carbon fiber materials and changed the structure of the coupler tailstock at the vehicle connection from the original vertical surface installation to the top lifting.”

Green environmental protection, energy conservation and emission reduction are the future development trends of subway trains, while the next generation subways will once again achieve “speed up” on the road to the “future”.