new energy vehicles also need annual inspections, and batteries have become a required inspection item. experts: it is very necessary and timely
2024-09-27
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recently, the national standard "regulations for inspection of operational safety performance of new energy vehicles" (gb/t 44500-2024) (hereinafter referred to as the "regulations") was released.and announced that the regulations will be officially implemented on march 1, 2025. this new regulation marks that my country's new energy vehicle annual inspection system has entered a new, more professional stage. moreover, this standard applies not only to pure electric vehicles, but also to plug-in hybrid (including range-extended) vehicles.
annual vehicle inspection is a necessary procedure for every car owner. in recent years, with the development and growth of my country's new energy vehicle market, the number of new energy vehicles in the country currently exceeds 24.72 million, accounting for 7.18% of the total number of vehicles. and this number is constantly growing, and the resulting concerns about the safety of new energy vehicles are also increasing.
cui dongshu, secretary-general of the passenger car association, told reporters that the release of the annual inspection policy for new energy vehicles is a good thing. according to data from the passenger car association, china accounted for 66% of the world’s new energy vehicle share from january to july 2024. and the domestic retail penetration rate of new energy vehicles will reach 51.1% in july 2024, which also means that the sales volume of domestic new energy vehicles has surpassed that of fuel vehicles and has become the main model purchased by consumers. therefore, the introduction of new energy vehicle testing standards is positive feedback to the market and consumers.
after the release of the new standards, the reporter contacted the jinan vehicle management office, and the staff of the vehicle management office said that they have not received relevant notifications yet.
so, why do new energy vehicles need annual inspection? what is the difference between testing and testing for fuel vehicles?
in fact, the release of the new standards does not mean that new energy vehicles do not need annual inspections before that, but that before that, the annual inspection standards for new energy vehicles are basically the same as those of traditional fuel vehicles. just because pure electric models do not have an internal combustion engine, they do not need to conduct exhaust emissions and other tests.
however, traditional inspection standards are based on the working principles of fuel vehicles, and focus more on the detection of mechanical systems and environmental protection, mainly focusing on the appearance, chassis, safety devices, lighting, brakes, and exhaust emissions of the vehicle. . because new energy vehicles use a power system that is different from traditional fuel vehicles, the original annual inspection standards can no longer fully adapt to their special needs. at the same time, due to the relatively high degree of intelligence of new energy vehicles, many consumers are not interested in new energy vehicles. there are also higher expectations for car safety. therefore, establishing a set of safety inspection standards specifically for new energy vehicles is not only a positive response to the current development status of the industry, but also an important measure to maintain public safety.
according to the requirements of the new regulations, the annual inspection of new energy vehicles will pay special attention to the safety performance testing of key parts such as power batteries, drive motors, electronic control systems and electrical safety.
previously, as the number of new energy vehicles increased, related safety accidents such as fires and loss of control occurred frequently, arousing widespread social concern. moreover, the maintenance and replacement costs of new energy vehicle batteries have always been high. the battery replacement cost of some models such as volvo's polestar even exceeds the selling price of the vehicle.
therefore, the safety testing of power batteries has become a top priority in the new regulations, which include clear restrictions on the temperature control of lithium iron phosphate batteries and ternary lithium batteries during the charge and discharge process.the maximum charging temperature is required to not exceed 65℃ and 60℃ respectively.. this temperature limit is in line with the reasonable operating temperature range of the power battery and is also far lower than the critical temperature of "thermal runaway" in the battery system. ensure there are no safety hazards caused by overheating. in addition, the new regulations also set an upper limit on the operating temperature of the drive motor to prevent malfunctions or accidents caused by motor overheating. in,the temperature of the new energy vehicle drive motor must not exceed 175°c, and the temperature of the motor controller and dc/dc converter must not exceed 95°c.
regarding the release of the new regulations, the reporter interviewed guo tao, an angel investor and senior artificial intelligence expert. guo tao said that policies related to annual inspections of new energy vehicles are very necessary and timely. by formulating special annual inspection standards and processes, the safety and compliance of vehicles during use can be ensured. at the same time, this policy will also promote the healthy and orderly development of the new energy vehicle industry and enhance the safety standards and competitiveness of the overall industry.
the continuous improvement of new energy vehicle inspection standards can also enhance consumers' confidence in vehicle safety. guo tao also said that a strict annual inspection system can effectively reduce the occurrence of safety accidents and protect the life safety of consumers. it will also promote competition among new energy vehicle manufacturers and promote their continuous innovation and improvement in product quality, safety technology and other aspects. it can force manufacturers to pay more attention to improving safety performance during the production process.
although most new energy vehicle manufacturers currently provide lifetime warranty services for the vehicle's "three-electric system", and even manufacturers such as weilai also provide battery rental and battery replacement services for consumers, the vehicle's "three-electric system" caused by failures still occur. therefore, the strict annual inspection system will also prompt manufacturers to strengthen the construction of after-sales service systems and provide consumers with more comprehensive and professional vehicle maintenance and repair services.
in the long run, the promulgation of the "technical inspection regulations for operation safety of new energy vehicles" also means that the new energy vehicle industry has entered an era of higher-standard supervision.
(popular news reporter su yuepeng)
