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in a recent live broadcast of optoelectronic testing, he xiaopeng, ceo of xpeng motors, suggested that the china association of automobile manufacturers or other automobile associations should create an energy efficiency label similar to that of home appliances. he bluntly stated that after he bought high-energy-consuming home appliances earlier, he "paid the electricity bill until he bleeded."

as we all know, most home appliances are labeled with the "china energy efficiency label", through which consumers can intuitively see the energy consumption level of the product and choose home appliances that save more electricity. unexpectedly, he xiaopeng's suggestion was really accepted.

it was revealed that the china automotive engineering research institute has released the domestic new energy vehicle energy efficiency classification standard, which combines the four dimensions of driving system, air conditioning, drive, and energy replenishment for evaluation, and finally divides the results into five levels. this standard is the first to be applied to the evaluation of pure electric passenger vehicles.recently, at a forum on extended-range technology development, in addition to pure electric passenger cars, china automotive research institute also revealed that plug-in/extended-range hybrid vehicles, pure electric online-hailing vehicles and other new energy commercial vehicles will also launch an energy grading evaluation system, which is equivalent to future new energy vehicles being labeled with "automotive energy efficiency grading."

buying a car is different from buying home appliances. consumers will consider more when buying a car. appearance, quality, control, intelligence, space, configuration, energy consumption and other aspects are all factors in buying a car. for ordinary people who pursue lower car maintenance costs, the energy consumption level of a car is indeed one of their main concerns.

it is foreseeable that the era of "looking at energy efficiency ratings when buying a car" will soon arrive.

according to the latest data from the china passenger car association, the national retail volume of narrow passenger cars in august was 1.905 million units, of which 1.027 million units were sold in the new energy market. the new energy penetration rate exceeded 50%, reaching 53.9%, setting a historical monthly high.nowadays, new energy vehicles have become the choice of more consumers, and energy efficiency grading of new energy vehicles does allow consumers to have a basic judgment on the products.

energy efficiency labels have long been available.“grading” is more intuitive

“automobile energy efficiency classification” is indeed a new thing, but “automobile energy efficiency labeling” has appeared for a long time.

since 2009, fuel vehicles/hybrid vehicles have been required to display fuel consumption data under urban conditions, suburban conditions and comprehensive conditions. hybrid models such as plug-in hybrid/extended range vehicles need to display data such as fuel consumption, electric energy consumption, low-power fuel consumption, and electric energy equivalent fuel consumption. pure electric vehicles are required to display data such as comprehensive electric energy consumption, electric energy equivalent fuel consumption, and pure electric cruising range.

if you are a potential consumer who is very concerned about the cost of car maintenance, these data can allow you to quickly understand the energy efficiency performance of the entire vehicle, but the problem is that these energy consumption data cannot allow people to quickly understand whether the energy consumption of this car is higher or lower than that of its competitors in the same class.

this is the most direct function of energy efficiency grading - it allows consumers to understand the energy efficiency of this new energy vehicle without any effort, which is more in line with the actual situation of "comparing prices from three stores" when buying a car.

in xiaotong's opinion, this is just one of the highlights of "energy efficiency grading". what is more important is the relatively complete energy efficiency rating system, which makes the data more valuable for reference.

as mentioned earlier, the energy efficiency rating system will make a comprehensive assessment based on the energy efficiency of the driving system, air conditioning, drive, and energy replenishment. xiaotong was even more surprised to see the results of air conditioning energy efficiency specially included in the rating system.

xiaotong checked the "passenger car fuel consumption limits" standard that current models comply with, which mentioned that the comprehensive working conditions of fuel vehicles have been upgraded from the original nedc to wltc. as we all know, the wltc working condition test is more stringent than the nedc working condition and is closer to the driving conditions of real road conditions, but it only stipulates the test environment temperature and the air conditioner must be turned on, and does not unify the data after the air conditioner is turned on, such as the air volume and temperature after the air conditioner is turned on, which will affect the final fuel consumption test results.

you should know that the strategies for air-conditioning energy efficiency of fuel vehicles and new energy vehicles are not exactly the same.when the air conditioner is turned on for cooling in the summer, the fuel car will turn on the air conditioner compressor, which will consume additional energy from the engine. when the air conditioner is turned on for heating in the winter, it will only use the waste heat of the engine, which will not have much impact on fuel consumption. new energy vehicles are different. the heat generated by the motor when working is far less than that of the engine, so both cooling and heating will directly consume battery energy.

judging from the test items alone, the scoring system does have value. the only difficulty is how to make the "automobile energy efficiency classification" more convincing, such as what the test conditions are for each item and what proportion the test results account for in the overall rating.xiaotong believes that as long as it is fair, open and convincing, the final energy efficiency rating will naturally be convincing to car companies and consumers.

currently, only the scoring system for pure electric passenger cars has been announced, and the scoring system standards for plug-in hybrid/extended-range hybrid passenger cars and pure electric online ride-hailing vehicles will be released later. these two types of new energy passenger cars are different from pure electric passenger cars, especially in terms of powertrain, air conditioning strategy, energy replenishment strategy and vehicle condition, so corresponding test items are expected to be introduced in the test regulations.

high energy efficiency,always the "killer move" of cars

whether it is the era of fuel vehicles or the era of electrification, there are too many factors that determine consumers' decision to buy a car. in addition to the price and quality of the product itself, there are also many other aspects beyond the product, such as brand influence and value retention rate.but to be fair, low energy consumption and high energy efficiency will always be one of the factors that most appeal to the general public. however, in the era of fuel vehicles, low energy consumption means fewer refueling times and more savings on car maintenance costs; in the era of electrification, low energy consumption means not having to look for charging stations frequently, which is more worry-free.

xiaotong strongly supports setting "energy efficiency grades" for new energy vehicles. in reality, consumers who want to buy pure electric vehicles are very concerned about the energy consumption of pure electric vehicles.

the current pure electric vehicles can be equipped with a battery pack with a capacity of up to 100kwh, and the pure electric range of mainstream pure electric vehicles is more than 500km. however, after actual tests by many media and institutions, many pure electric vehicles have reduced range in actual situations, with 30% off being the norm, and some models even less than 50% off, and the battery degradation rate is more obvious after entering winter.

of course, this only requires paying attention to the battery life data on a regular basis, making plans in advance and replenishing energy in time, so there won’t be too many problems. however, if you need to drive a pure electric vehicle for long distances during holidays, users may face greater torture.not only will you have to face the problem of rapid battery life degradation caused by long-term high-speed driving, but you may also need to spend extra time queuing for charging stations.

there are some solutions on the internet to alleviate the rapid decline in the range of pure electric vehicles in winter and on highways, but for users, their beloved cars have become "electric dads", which is a bit "the opposite of the natural order".xiaotong has always believed that technical issues should be considered by the company's engineers, rather than users relying on some "homegrown methods" to alleviate them. problems such as the rapid decline in pure electric range and the imperfect energy replenishment system have not been fundamentally solved, so car companies still need to work hard.

according to xiaotong's observation, improving pure electric battery life has always been a focus of new energy vehicle companies. the mainstream approach is to increase the capacity of pure electric vehicles. for example, zeekr, xiaomi, tesla and many other car companies have mass-produced 100kwh battery packs; nio and zhiji have changed the raw materials and structure of the battery and entered the "semi-solid battery" stage; xiaopeng motors is more detailed. in order to make the battery life more solid, it has optimized aerodynamics, battery technology, thermal management system, energy recovery system and other aspects. many of its models have won the forefront of battery life tests in professional electric vehicle tests.

of course, not all pure electric vehicles achieve high energy efficiency levels. the official "energy efficiency classification" not only provides consumers with a reference for car purchases, but also forces automakers whose products have high energy consumption to carry out technological innovation, which also has a certain promoting effect on the development of the industry.