When buying a car, go to an SUV expert
Pure electric vehicles are now in a period of technological development, and new technologies are being promoted every year. For example, the popularization of the 800V platform this year can achieve 500km of battery life with 15 minutes of recharge; NIO launched the NIO 150kWh battery, with a measured battery life of over 1,000km. Charging and battery life anxiety are now becoming less and less common.
However, winter anxiety still exists today. With the release of the "winter endurance test" results of Dianchedi, many netizens attach great importance to the winter endurance range of new energy vehicles. Experts also analyzed whether new energy vehicles are suitable for use in the north.
Winter test battery life has shrunk significantly
In December, Dongchedi launched the 2023 winter test. This is actually an old tradition. Dongchedi has carried out winter tests for several consecutive years. But in previous years, Chedi knew that it would test pure electric and plug-in hybrid vehicles, but this year it will focus on testing plug-in hybrids and extended-range hybrid vehicles.
A total of 19 hybrid models participated in this endurance and energy consumption test, including 12 plug-in hybrid models and 7 extended-range hybrid models, including BYD, Great Wall, Lynk & Co, Geely, Ideal, Wenjie, etc. brand. However, this year's test results caused quite a bit of controversy because the pure electric cruising range of many models was less than half of the nominal range.
In the first winter test, only three models, the U8, Song PLUS DM-i, and Ideal L7, achieved a pure electric achievement rate of more than 50%. Those with a pure electric achievement rate of less than 40% include Tank 400 Hi4-T, Lantu FREE, Formula Leopard 5, Haval Raptor, Qin PLUS DM-i, Galaxy L6, Lynk & Co 08 EM-P, and Wenjie M7. Cheng version.
Car companies questioned the test standards
The results of the first test also stirred up a "hormone's nest". Wenjie, Great Wall and Geely all "bombed" Dongchedi's winter test, believing that its test standards were different. Wenjie retrieved the background data of the vehicle and found that before the official test, the vehicle was air-conditioned and heated for 71 minutes. After the interior temperature reached 24 degrees, heating continued for 40 minutes.
also performed more than ten operations of opening and closing the doors and windows. The longest operation lasted for three minutes, which greatly increased the energy consumption of the air conditioner and caused a rapid decrease in power consumption. This situation seriously deviated from the real usage scenario. .
Geely retrieved background data and also found that during the preparation process of the Galaxy L6 before the test, the vehicle idled for 70 minutes, during which the door was opened four times, with the longest two openings lasting more than 10 minutes.
Lynk & Co 08 idled for 71 minutes before the test, during which the door was opened 6 times, with the longest opening time being 6 minutes and 39 seconds. These operations greatly increase the energy consumption of the air conditioner, causing the vehicle's battery capacity to drop significantly before it is officially shipped.
After being questioned, Mr. Chedi also said very firmly that he would conduct a second test and live broadcast the test process. He also invited some media and companies to Mohe to witness and live broadcast. The models of this time's endurance models are Yangwang U8, Lantu FREE, Weipai Alpine, Denza D9 DM-i, Wenjie M7, and Lynk & Co 08EM-P, all of which are brands that have questioned the results of the first time.
The results of the second test were even better than the first. The Wenjie M7 pure electric range was only 10.6 kilometers, the Lynk & Co 08 was only 6.5 kilometers, and the Weipai Mountain range was only 17.4 kilometers. Prior to this, the pure electric range of these three models was 55.3 kilometers (achievement rate 31.60%), 69.7 kilometers (achievement rate 31.68%), and 64.8 kilometers (achievement rate 46.29%) respectively.
So far, there is no final conclusion on the Dongchedi winter test incident. Many people believe that the advantage of plug-in hybrid vehicles in winter lies in the engine, and it is unreasonable to drive purely on electric power in winter. In addition, the pure electric range tested ended with engine intervention, and each car company calibrated the timing of engine intervention differently, so the test results were unfair.
Are new energy vehicles not suitable for the north?
Although the winter test results of the car expert have caused a lot of controversy, objectively speaking, it is an indisputable fact that the battery life of new energy vehicles shrinks in winter. This is related to the battery characteristics, and the battery life of mobile phones in cold areas will also shrink significantly.For consumers, if the temperature in the area is low in winter, does that mean it is not suitable to buy new energy vehicles?
The reasons why new energy vehicles shrink in winter are: first, the internal resistance of the battery increases and the power shrinks; second, the power consumption increases for heating.
The current methods to solve these two points are to provide heat for the battery pack. The mainstream ones include PTC and heating film heating and liquid cooling circulation system heating. Both of these methods preheat the battery so that the temperature of the battery pack can rise quickly when the car is just started.
As for heating air conditioners for large power consumers, they mainly use PTC heating sheets or heat pump air conditioners for heating. Among them, the power of heat pump air conditioners is only about 30% of that of PTC, so new energy vehicles with heat pump air conditioners will save more power in winter.
Back to reality, experts suggest that you should not buy pure electric vehicles in areas where the temperature is above minus 20 degrees in winter, but you can buy plug-in hybrids or extended-range vehicles. They have engines to heat the interior of the car and the battery pack. However, when driving in winter, it is not recommended to drive on pure electric power like a car expert, but to drive in hybrid mode to maximize battery life.
Expert summary
Not surprisingly, new energy vehicles have experienced another year of skyrocketing sales this year. Although there are fewer problems with new energy vehicles now than before, the problem of reduced battery life in winter has not been greatly improved. For consumers, when choosing new energy vehicles, they cannot blindly follow the crowd. They must also consider their own environment.
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