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there are more and more new energy vehicles on the road, and the inspection standards for the safety performance of new energy vehicles are becoming more and more stringent.

recently, the country has promulgated the "new energy vehicle operation safety performance inspection regulations", which is the first domestic safety inspection standard specifically for new energy vehicles including pure electric, plug-in hybrid, and extended range, and will be released on march 1 next year. officially implemented.

by then, all new energy vehicles will undergo annual inspections in accordance with this set of standards.

prior to this, the annual inspection standards for new energy vehicles were basically the same as those for traditional fuel vehicles, and they were all inspected in accordance with the "motor vehicle safety technical inspection items and methods".

the main contents of the inspection are vehicle appearance, safety devices, chassis, braking and emissions. pure electric vehicles without internal combustion engines do not need to undergo exhaust emission tests.

to put it simply, this set of inspection standards focuses on the testing of mechanical systems and environmental protection. it is suitable for fuel vehicles, but it cannot keep up with the times when it is placed on new energy vehicles.

new energy vehicles are mainly electrified, and the core is the three-electric system. if there is a problem with the "electricity" thing, especially the power battery, the danger may be much greater than that of "oil". the original annual inspection did not have corresponding testing items and standards for electrical.

therefore, the new regulations are tailor-made for new energy vehicles, focusing on testing the three-electric system. let’s first outline the key points for you:

first of all, the safety charging inspection and electrical safety inspection of the power battery of new energy vehicles are required inspection items.

among them, the new regulations provide clear restrictions on the temperature control of the current mainstream power batteries, lithium iron phosphate batteries and ternary lithium batteries during the charging and discharging processes. the maximum charging and discharging temperatures shall not exceed 65°c and 60°c respectively.

this temperature limit is far lower than the critical temperature of "thermal runaway" of the battery system, ensuring that there are no safety hazards caused by overheating.

secondly, the drive motor of new energy vehicles is an optional inspection item. for safety reasons, it is recommended that everyone check it when the time comes.

the new regulations require that the temperature of the drive motor of new energy vehicles shall not exceed 175°c, and the temperature of the motor controller and dc/dc converter shall not exceed 95°c.

generally speaking, the normal operating temperature of the drive motor is usually between 60℃ and 120℃. it may be difficult to start at low temperatures, while at high temperatures it may cause the motor to overheat, which may reduce efficiency at first, reduce the life of the motor at worst, or even break down and burn the motor.

nowadays, for many newly launched new energy vehicles, the motor speed is getting higher and higher, so temperature control is naturally a top priority.

the annual inspection standards for new energy vehicles actually will not have much impact on the new energy vehicles launched in the past two years.

in recent years, domestic new energy has become increasingly mature and stable in the field of three-power technology. the safety factor of each power battery is very high. although the temperature of the motor is high, air cooling, water cooling, including new materials are used, and it can also be used very well. keep the temperature within thresholds.

therefore, these new energy car owners can only check a few more items during annual inspections.

the biggest problem is early owners of new energy vehicles.

before 2018, domestic new energy vehicles were still in a stage of brutal growth. most of the new energy vehicles on the market are either "oil-to-electric" or shoddily manufactured for the purpose of cheating. even for products from major manufacturers, the technology and quality of products are not as good as they are now.

this "oil-to-electricity" epidemic lasted until about 2020, and only then did new energy vehicles begin to enter a stage of rapid growth.

according to statistics, by the end of 2020, there were nearly 5 million new energy vehicles, including 4 million pure electric vehicles. calculated according to the car replacement cycle of our ordinary families, the vast majority of new energy car owners have not yet replaced their cars, and they have just passed the 6-year inspection-free period.

not to mention their own technical and quality problems, these vehicles may not meet the standards of the new annual inspection regulations just because they have been used for such a long time.

these car owners were the first to take advantage of the situation back then, and now they may also become the first to be stuck in annual inspections.

these car owners currently have only two options:

if you bite the bullet and go for annual inspection next year, you may fail the annual inspection. will this give rise to various gray markets for annual inspections of new energy vehicles? it's hard to say.

the second is to make up your mind to buy a new new energy vehicle during the current trade-in policy, and you can still enjoy the inspection-free period for another six years. however, in the current automobile market, the price war is in full swing. no matter which new energy vehicle you buy, it is difficult to guarantee that you will not be stabbed in the back.

just ask the old owners of new energy vehicles, are they a little panicked? (text/lao pao)