The hottest sensor stops the Beijing Shanghai high

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The sensor stopped the Beijing Shanghai high-speed railway

within four days, there were three failures, and the Beijing Shanghai high-speed railway was weak and sickly at the initial stage of operation. At 22 o'clock last night, the international finance news learned exclusively from the technical experts of relevant companies that the fault of the train yesterday was due to a sensor error

at about 11:00 p.m. on July 13, a passenger Weibo broke the news that the g114 train of the Beijing Shanghai high-speed railway broke down and stopped in Zhenjiang for maintenance. The railway department dispatched a spare car from Nanjing to Zhenjiang to pick up the passengers on g114. Subsequently, the Beijing Railway Bureau confirmed the news on its microblog: on July 13, the g114 train of the Beijing Shanghai high-speed railway ran to Changzhou north railway station, which broke down suddenly and could not operate normally. The international finance news learned yesterday from the passenger transport department of Beijing railway administration that the failure did have a certain impact, but compared with the previous two failures, the impact was smaller

it is noted that the faults on July 10 and 12 were caused by the power supply system, while yesterday it was the vehicle itself. Crh380 series high-speed multiple units operated by Beijing Shanghai high-speed railway have been known in the industry as a new generation of domestic high-speed trains with independent intellectual property rights

it was learned from various sources yesterday that the faulty vehicle on the 13th was made by CNR. In response to the questions raised by the international finance news, the relevant person in charge of CNR pointed out that the fault train was due to the implementation of automatic protection of the electrical system, so that the speed limit. The research team prepared porphyrin based Piza ⑴ thin film materials (small, 2017, 1,) that can effectively and selectively detect volatile organic compounds, and set the speed within 160 kilometers per hour. This is a fault oriented safety, because a fault has been detected. The person in charge told that the faulty train had arrived in Nanjing and was being checked by technicians

called CNR again at 22:00 last night, and the company's technical experts responded that: previously, they just concluded that there was a fault on the safety loop. Now it has been confirmed that there was a problem with a sensor and it has been replaced. At present, the problem of the whole vehicle has been solved, and the next step will continue to analyze it from the original level. However, the technical expert said yesterday that it was inconvenient to disclose the manufacturer of this sensor

according to his introduction, the fault caused by the sensor has also occurred on other lines before, and there is no guarantee that similar situations will not occur on the Beijing Shanghai high-speed rail line in the future. Fault oriented safety means that if there is a small problem, the speed limit is also required. The requirements are relatively strict. The design concept is to make the car slow down and stop in time when there is a problem

the technical expert also pointed out yesterday that there will be relatively more failures in any equipment system at the initial stage of operation. Since the railway speed has been increased for so many years, it can be seen that the failure rate of the Beijing Shanghai high-speed railway line is still very low, which spreads to the core products of the company, such as iron powder, thick plate, steel wire rod and so on. The expert also pointed out that ASTM D6109 (2) 010 is a standard test method for the flexibility characteristics of non reinforced and reinforced plastic wood and related products. Each new car has undergone a trial operation of about 5000 kilometers, but everyone pays too much attention to the Beijing Shanghai high-speed railway

it is understood that the trains running on the Beijing Shanghai high-speed railway line are provided by CSR and CNR respectively. Previous data in mid June showed that CNR had completed the production and manufacture of 42 Beijing Shanghai high-speed trains, including 20 delivered to Shanghai Railway Bureau, 12 delivered to Jinan Railway Bureau and 10 delivered to Beijing Railway Bureau. The series of trains produced by the company have been running for more than 980000 kilometers on the Shanghai Hangzhou line. The ball screw pair is driven by the Panasonic exchange servo machine with high speed regulation accuracy, wide range and stable performance through the synchronous toothed belt reduction system

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