June 20, 2019 Source: Industry News

Qingdao, June 19 news, the reporter learned from CRRC Sifang Co., Ltd. that the six-group next-generation subway train developed by the company successfully completed the test run on the commissioning line. The train uses a large number of new technologies and new materials to represent the future of the subway technology trend, known as the "future subway."

“Green Metro”: Lighter and more energy efficient

According to Ding Wei, deputy chief engineer of CRRC Sifang Co., Ltd., the biggest feature of the next generation subway train is lighter and more energy efficient. Using advanced carbon fiber technology, its body, steering frame, cab, equipment compartment, etc. are all made of carbon fiber composite materials. Carbon fiber makes the train lighter and the vehicle loses 13%. The traction system uses a new energy-efficient silicon carbide inverter and a permanent magnet synchronous traction motor. The vehicle is lighter and the traction system is more efficient, so it is “more energy efficient”. Compared with the traditional subway, the vehicle has a comprehensive energy saving of more than 15%.

"Smart Metro": smarter

Compared to traditional subways, next-generation subway trains are "more intelligent." The car window turned into a touch screen, which is equivalent to an oversized "Pad". Click on the window with your fingertips to get online on the window, watch videos, browse news, watch TV shows...

The train has a top speed of 140 km/h, which is faster than the traditional subway. The running process is fully automatic driving. The vehicle is equipped with a powerful intelligent monitoring and early warning system to sense the train status in real time and realize early warning of the fault. At the same time, by establishing a “health file”, the train is actively involved in maintenance when the train is in the “sub-health” state, and the traditional “planned repair” is upgraded to an advanced “state repair” to achieve intelligent maintenance and improve vehicle safety. ability.

“Quiet Metro”: Smooth and low noise

For the first time, the next-generation subway train adopts full-active suspension technology, which can detect the vibration of the cabin and adjust the suspension system in real time, so that it is in the best vibration-damping state at all times, and the vehicle runs more smoothly. The application of new sound insulation and noise reduction materials and equipment, the cabin noise is reduced by more than 5 decibels, and the cabin is quieter. At the same time, it will be equipped with new passenger facilities such as smart air conditioners and intelligent lighting to bring a more comfortable ride experience.

a subway that will "transform"

Compared with the traditional subway, the next-generation subway train is more applicable. The train will “transform”, that is, “flexible grouping”, which can be arbitrarily matched with cars in the range of 2 to 12 according to passenger flow changes, reducing operating costs and improving operational efficiency. At the same time, adapt to the harsher operating environment, regardless of high temperature, high cold, high altitude, or small curve, large ramp, the train can run freely.

According to reports, after the next-generation subway train completes the test run on the commissioning line, the next step will be to go to the subway line to carry out line test and operation demonstration.