At the 2023 China International Rail Transit and Equipment Manufacturing Industry Expo (referred to as the "Rail Expo") held in Zhuzhou, Hunan, a batch of new rail transit products made a dense debut, including the new generation of super virtual rail trains, gear rail trains capable of climbing snow mountains, and unmanned phosphate funnel cars; The virtual rail train equipped with "image recognition+Beidou positioning" technology can achieve intelligent driving, and the mobile hydrogen production device applied to hydrogen energy light rail vehicles can help "zero carbon transportation"... The reporter observed that green and intelligent are leading the "new trend" of technological innovation in the rail transportation industry chain. Innovation extends from product iteration to detail improvement. "The new generation of super virtual rail trains adopts a 2-car formation and perceives the ground virtual track through" image recognition+Beidou positioning ", enabling manned autonomous driving." At the outdoor exhibition area of the "Rail Expo," a new electric car is very eye-catching. ". According to Li Chunming, the system development director of CRRC Zhuzhou Electric Locomotive Co., Ltd., this train does not require laying tracks or installing overhead contact networks, and the minimum turning radius is only 15 meters. "When a common tram or light rail turns, it usually relies on the front wheels to drive the rear wheels, and this car is the first commercial application of an all wheel electric drive steering system. The wheels can turn at the same time, which has the characteristics of green, flexible, and efficient." Li Chunming said. Toothed rail trains are a new type of rail transit vehicle used in mountaineering railways, known as "trains skilled in mountain climbing.". At the "Rail Expo", a train that can climb a 30 degree slope was exhibited. Chen Zheng, the overall designer of CRRC Zhuzhou Electric Locomotive Co., Ltd.'s toothed rail train, introduced that the running gear of the train is equipped with multiple gears, which mesh with the gear rack installed in the middle of the track when climbing, and steadily move with the help of the biting force of the gear rack. The climbing ability of toothed rail trains is more than 10 times higher than that of domestic mainline railway locomotives. It is understood that this train is the first gear rail train with completely independent intellectual property rights in China and will be used in the gear rail railway between Dujiangyan Irrigation Project and Siguniang Mountain. In addition to innovation in rail transit equipment, the "small details" inside the train are also constantly being optimized. How to open the front door lock more conveniently and intelligently, some technicians are also working hard to reduce the hassle of holding keys for train drivers. According to Wang Zhi, the Marketing Department Director of Tianyi Industrial Co., Ltd. at Hunan Railway Vocational and Technical College, the company's third-generation intelligent door lock can be developed through IoT technology, allowing drivers to unlock the lock within a fixed time period through cards or mobile apps, improving their work efficiency. When riding high-speed trains, noise is often an important factor affecting passenger experience. The "Active Passive Fusion Control System for Rail Transit Vehicle Noise" developed by CRRC Zhuzhou Locomotive and Rolling Stock Technical Team has received widespread attention to the noise problem during high-speed locomotive operation. "Experiments have shown that with our technical support, deploying noise reduction devices on the locomotive body, key systems, and air duct systems can effectively reduce the overall operating noise by nearly 30%." Li Dengke, the project leader and member of the CRRC Zhuzhou Locomotive Vibration and Noise Control Professional Technical Committee, said that the relevant achievements of this project have been applied to more than 40 engineering projects such as high-speed trains, subways, and locomotives. The forms of urban rail transit continue to flourish
Edit：Hu Sen Ming Responsible editor：Li Xi
Source：XinhuaNet
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