Recently, the "Safety Technical Conditions for Electric Buses" (hereinafter referred to as "Conditions") led by the Ministry of Industry and Information Technology was announced soon. The words in the solicitation draft were not too eye-catching, but they may cause great changes in the industry pattern. According to Article 4.10.1 of the “Conditions†(Draft for Comment), “the whole vehicle (for electric passenger cars) shall be a full-loaded monolithic skeleton structureâ€. This means that Japanese and European light passengers and high-end commercial CMB products, which use a large number of fully-pressed bodies, are all “kicked outâ€. Only passenger cars with skeleton body structure and rectangular steel pipe welding technology can be used as electric buses. Is it really unsafe to punch the body of the light passenger and the CMB? Are the advanced body production lines built by SAIC Chase, Dongfeng Yufeng, Jianghuai Xingrui, Futian Tuyanuo and many other enterprises with investment of several hundred million yuan or even more than one billion yuan, which is synonymous with "poor safety performance"? In the past two years, the passenger car products of Ankai Baotong, Fukuda Tanya, SAIC Datong, etc., which were widely taken by the leaders of the country and taken by the anti-war veterans, were actually “unsafeâ€? The analysis of the first commercial vehicle network believes that this practice of restricting the structure and routing of the vehicle body through technical regulations is not appropriate and can even be said to be "ridiculous". The automobile process is a production and processing method, and there is no distinction between safety and safety. The idea that the skeleton body structure is safer than the structure ignores at least the following four points: First of all, the stamping body and stamping process have been applied and improved by passenger cars, trucks, pure light passengers and high-end commercial CMB companies for decades. The active and passive safety has been widely recognized in practice, and more at home and abroad. Many collision regulations are used to rigidly constrain the safety of such vehicles. Secondly, due to the large number of stamping equipment and robots used in body stamping and welding production lines, the investment is very high, ranging from hundreds of millions to more than one billion (some enterprises can hardly see people in the stamping and welding production lines, all of which are automation equipment). It is suitable for assembly line operations and has high production consistency. Moreover, the body-formed steel sheets that are integrally stamped and formed are not easily torn and "dismembered" in the event of a collision. Third, through the steel pipe welding process to manufacture the passenger car skeleton body, the investment can be large or small, more dependent on labor, and the production consistency is not guaranteed. Large-scale bus companies can naturally guarantee the products through continuous production line software and hardware investment, technology development and strict verification. However, many small enterprises have only need millions or even hundreds of thousands of yuan for the manufacturing process and production line of the bus. The experience is not rich, which is easy to cause poor production consistency, and some even lead to solder leakage during the manual soldering process, which poses a safety hazard for future body cracking. In addition, many business light passengers and business CMB have been strictly tested by national large-scale events and state reception activities in recent years. For example, last year's 9.3 military parade, Ankai Baosong CMB carried the transportation of the anti-war veterans' square. Mission; Fukuda Tanyano European light passengers undertake the business reception work of foreign heads of state; Ankai Bao Stone and Sichuan Toyota Costa High-end CMB, is now a ride tool for many national leaders. The safety index of these passenger cars with full-press body is not lower than that of other body-type passenger cars. Otherwise, if the national leaders and foreign leaders are riding, isn’t it a “small ice†every day? How is the life of the transportation security department spent "happy"? The author believes that the relevant departments do not rush to specify the specific technical routes and process routes in a “one size fits all†manner. Instead, they should request and guarantee the manufacture of automobile enterprises by setting safety technical indicators and safety performance tests, as well as sampling inspections of products on the production line. The products that come out are all qualified and safe. This effect is much better than "forced designation."
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