During the Beijing Winter Olympics, relying on the operation experience and advanced technology of the Intelligent "Fuxing" of the Beijing-Zhang high-speed railway, the new Olympic version of the Fuxing intelligent EMU , the "Ruixue Yingchun" EMU, made a brilliant debut. It has further improved the automatic driving at a speed of 350 kilometers per hour, greatly improving passenger comfort and reducing the labor intensity of drivers, further strengthening the leading position of China's high-speed rail technology in the world.
The "Ruixue Yingchun" in motion / from the network
At present, most of the mainland high-speed rail trains are driven by drivers under the protection of China's train operation control system. As the first intelligent high-speed railway in mainland China, the Beijing-Zhangjiang high-speed railway has achieved automatic driving at a speed of 350 kilometers per hour for the first time in the world. Mo Zhisong, director of the Communications and Signals Department of the Ministry of Industry and Electricity of the State Railway Group, said:
Mo Zhisong: Automatic driving technology is an important symbol and one of the key core systems of intelligent high-speed rail, controlling the speed of the car from 350 kilometers to parking, and the control curve can stop accurately at one time, which is its biggest difficulty. The accuracy of parking is generally required to be within 50 centimeters, and now we generally measure 10 centimeters-20 centimeters, and the parking accuracy is still very high. We now have more than 2 million kilometers of autonomous driving, and the number of stops at the station has exceeded 30,000 times, reaching two hundred percent, one is 100% parking accuracy and the other is 100% punctuality rate of trains.
The new Olympic version of the Fuxing intelligent EMU "Ruixue Yingchun" / reporter photographed
The new Olympic version of the Fuxing intelligent EMU "Ruixue Yingchun" has been further improved in terms of automatic driving. Zhu Yan, deputy director of the Engineering Research Center of CRRC Changke Co., Ltd., said:
Zhu Yan: This car is equipped with a power battery and auxiliary driving technology, which can identify different situations on the train running line, such as uphill and downhill, it is recognized in advance, accelerated in advance, and decelerated in advance. It minimizes its energy consumption, saves uptime and reduces energy consumption. Through the power battery technology, it can realize that the whole train can automatically travel 15-20 kilometers to the nearest station at a speed of 30 km / h at a speed of 30 km / h in the case of catenary power outage, or vehicle failure, without affecting the operation of other vehicles on the line. For the Beijing-Zhang line ramp is relatively large, it has a ramp of 30 parts per thousand, so this car is set up with a high acceleration mode, which is equivalent to the first gear of our family car, so its climbing ability is relatively strong.
The new Olympic version of the Fuxing intelligent EMU achieves automatic driving at a speed of 350 kilometers per hour / from the network
The Beijing-Zhang high-speed rail line passes through the regional terrain ramp is relatively large / reporter photographed
Fuxing intelligent EMU interior intelligent interactive panel / reporter shooting
Mo Zhisong introduced that the automatic driving system can not only sense the operating state, but also calculate the optimal control curve to achieve energy saving and emission reduction, and improve passenger comfort.
Mo Zhisong: The automatic driving system realizes the linkage from the station to the interval to the stop to the opening of the door, to the linkage with the platform door, which also greatly reduces the labor intensity of the driver and can also reduce the traction energy consumption of the train. This time, the on-board computer was used, and the energy-saving control algorithm was specially developed and applied, and the energy-saving control model was also constructed, and the goal of energy-saving and carbon reduction was well achieved through this algorithm. The actual vehicle test results show that from Zhangjiakou to Beijing, compared with the driver's control, it can save 7% energy, and we continue to optimize, with the goal of achieving energy saving of 10 to 15%, which is highly consistent with the concept of "Green Olympics" and "Science and Technology Olympics" of the Beijing Winter Olympics. We have specially developed a set of passenger comfort testers to measure the actual scenes in this operation process, and to find out which indicators are high to optimize and adjust to improve the comfort of passengers. For example, there are more tunnels in the Beijing-Zhang high-speed railway, and after automatic driving, the ventilation system of the train can be actively closed before entering the tunnel, so that the air pressure in the car remains relatively stable, so that when passengers enter the tunnel, the sense of tinnitus will be greatly reduced.
Reporter Zhu Yanting Editor Zhao Mingcong Editor Cheng Yan