Nearly 13,000 new Elysee taxis in Wuhan were exposed as potential safety hazards. The news that taxis have been reduced but sold at a high price has caused public outcry. Although afterwards, the Wuhan Municipal Government proposed to update the safety of all taxis in the city Configuration, but it is worth noting that in this incident, the "shrinkable version" of the taxi was reduced by the ABS + EBD car safety control system that is related to driving safety. After the incident, whether it is the government or the car company, all It was claimed for a time that these vehicles meet the technical requirements for the safe operation of motor vehicles, whether or not they are equipped with an ABS brake system. The implication is that cars without ABS are also qualified products. The protagonist ABS is called AnTI-lock Braking System (ABS). ABS is an improved technology based on conventional braking devices to prevent the body from skidding. The full name of EBD is Electric Brakeforce Dis-tribuTIon. "Electronic braking force distribution" with ABS to improve braking stability. This brake system technology is a very common technology in the automotive industry, and has been widely used in various car models to ensure the safety and stability of driving. The reporter logged in the official website of Dongfeng Citroen to check the configuration table of the new Elysee 2012 model, and found that 5 models, from manual gear to automatic gear, ABS + EBD is the factory standard configuration. The announcement issued by Shenlong Company showed that the company checked the manufacturing of all non-ABS new Elysee models equipped with 7-inch brake hubs and ABS new Elysee models equipped with 8-inch brake hubs between April 2011 and March 2012. The dynamic performance factory inspection records, the inspection results are in line with the requirements of the national standard GB7258-2004 "Technical Conditions for Safe Operation of Motor Vehicles"; all new Elysee models have obtained product announcements and 3C certifications in accordance with relevant national regulations, and each year Passed the national 3C production consistency review. In other words, in the national standard GB7258-2004 "Technical Conditions for Safe Operation of Motor Vehicles", there are no mandatory standards related to brake systems such as ABS + EBD. The reporter consulted GB7258-2004 "Technical Conditions for Safe Operation of Motor Vehicles" Regarding the requirements of automobile braking systems, it stipulates that motor vehicles should have a good service brake system; automobiles (except three-wheeled vehicles) should have emergency braking functions; motor vehicles (two-wheeled, three-wheeled motorcycles and mopeds) Except for vehicles) should have a parking brake device; the service brake control device and the parking brake control device should be independent of each other; the brake system should be durable and not allowed to be damaged due to vibration or impact. There is no requirement for other retrofit configurations to ensure driving safety. In September this year, the state promulgated the latest national standard (GB7258-2012) "Technical Conditions for the Safety of Motor Vehicle Operation". The requirements for the braking system have not changed. This also confirms that Shenlong Company issued an announcement saying that its products comply with relevant national regulations. The hidden danger of Wuhan taxis is that the vehicles lack safety system devices, but this is not a mandatory standard in our country. The reporter connected to a car management office in Beijing. In the voice prompt of the new car inspection standards, there are no detailed requirements for car braking , Only need to provide the factory qualification certificate, so ordinary consumers can also drive on the road without ABS + EBD models. In CCTV's "Who Moved Our Taxi" column, the braking distance of the taxi version of the Elysee model and the civilian regular version of the same period was compared and tested. At about 100 degrees, the brake speed at the same speed of about 56 kilometers per hour is applied until the vehicle is completely stopped. The taxi distance of the taxi version is 22.2 meters, while the brake distance of the public version is only 14.5 meters. In terms of braking time, the taxi version took 2.92 seconds and the publicly available version only took 1.88 seconds. In addition, from the perspective of the average braking deceleration, the taxi version of the Elysee is also nearly twice as slow as the public sale version. It is also the sudden increase in braking distance that prevents many old drivers from correctly judging the braking distance in traffic accidents. This shows that ABS + EBD plays a very important role in preventing traffic accidents. The ABS + EBD system was launched as early as 1936. As a technology that has been widely used in various models, it has no mandatory regulations in China, and it has therefore become the source of auto companies ’announcement of product qualification. In order to avoid accidents, when many vehicles are driving along the road, it is necessary for the vehicles to effectively form brakes in time. The conventional parking brake stops only by the wheel brake of the motor vehicle to decelerate, which is far from satisfying the current road driving conditions. European and American countries have taken the lead in promulgating mandatory regulations in this regard. On November 1, this year, the new EU car safety regulations came into effect. Among them, there are clear regulations on vehicle safety, which require An electronic stability control system (ESC) is installed, otherwise, the EU vehicle type approval cannot be obtained, and the US Federal Motor Vehicle Safety Standard FMVSS also explicitly requires the installation of an electronic stability control system to ensure road safety. The Electronic Stability Control System (ESC) includes the ABS system and focuses on driving stability. 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