Is it cold outside the car and inside the car?

Editor’s note: This article is from the micro-channel public number “IT Times” (ID: vittimes), Author: Li Danqi Liyun Kun.

Picture source: Pixabay

30 seconds quick reading

  • As soon as winter comes, “rest food”, new energy car owners become “winter’s worst people”, dare not turn on the air conditioner, even if the air conditioner is not turned on, the battery power loss will be significantly accelerated.

  • Wear the down jacket and drive the Tesla, the “National God Car” Wuling Hongguang mini EV can be charged for 9 hours and drive for 3 hours, Xiaopeng P7, Weilai ES8 winter cruising range is 40% off…< /p>

  • Power failure is a natural disadvantage of new energy vehicles. Even if other conditions are exactly the same, energy consumption in winter will increase or decrease by about 30% compared with summer, but new energy vehicles still comply with the law of true fragrance.

Another cold wave is approaching Shanghai, and the temperature in the north has stabilized below the zero degree line long ago.

The north wind is rustling outside the window, as long as the heating is turned on, everything will be fine. However, new energy vehicles “cannot ask for warmth” directly force a group of car owners into “the worst people after winter.” Due to the influence of the low temperature environment, the power-off speed of new energy vehicles has been significantly accelerated, and the cruising range has been greatly reduced. Many car owners are deeply worried about mileage and dare not turn on the air-conditioning in the winter. They can only sit in the carriage wrapped in a down jacket and shiver.

The year 2020 can be called the “year of the fight” for new energy vehicles. Following controversies such as the loss of tens of billions of head enterprises last year and the bubble crisis in the industry, the stock prices of new car manufacturers have been booming this year, becoming the largest in the capital industry. darling.

Nowadays, embarrassed car owners have brought another hurdle to the industry. Where will the next stage of technological breakthroughs in power batteries be?

01 Wearing a down jacket to drive is “so convenient”

“As a Tesla Model S owner, I must say that driving a Tesla in winter is really ‘great’.

Because the outside and inside of the car are basically the same temperature, if you driveIt’s warm, and the Tesla has no electricity for minutes, so he drove in a down jacket and a hat. It’s still the same when getting off the car. How ‘convenient’! “

Tong Yang, the owner of a Tesla Model S from Beijing, dictated her driving experience. In the video, she was wrapped tightly even when sitting in the car.

Tong Yang’s mileage anxiety is particularly obvious. In summer, Model S can run for 3-4 days with a full charge. Now it is only enough to run for one day in cold weather, so he dare not drive long distances in winter. If the air conditioner and steering wheel heating are turned on, it can only drive up to 160km, which is basically 1/3 of the nominal cruising range.

If you order a long-range Tesla, you will not have much mileage anxiety in the freezing north. Chen Run (a pseudonym), the owner of the Hebei Tesla Model 3 long-range version, said, “Although Tesla loses power more severely in winter, after all, the total mileage is longer, and it can run about 470km when charged to 90%. Electricity anxiety.”

According to official sources, the Model 3 long-endurance version has a cruising range of 668km under the national standard operating conditions, and WLTP (Global Light Vehicle Test Procedure) has a cruising range of 544km, which is similar to the NEDC (New European Standard) commonly used on the official website of car companies. Compared with the cruising range, the data of WLTP is closer to the actual cruising range.

Source: Tesla China official website

What kind of experience is it like to lose power? “It’s estimated that it can drop tens of kilometers for a night. I heard that the standard battery life version is even more power-off.” Chen Run said that recently he had driven 150km clearly, but it showed that it reached 190km, indicating that 40km was power-off.

Dongdong (pseudonym), who bought the “National God Car” Wuling Hongguang mini EV, found that the charging time has been significantly longer recently. The lowest temperature in his area is minus 4℃, and the battery will run out of 170km for 3 hours. It takes about 9 hours to fully charge.

And when it was not so cold a month and a half ago, the car could be charged 12% in one hour. According to this calculation, it only takes 8 hours to fully charge.

02Only 60% of battery life in winter

Except for Tesla, the countryThe new car-making forces in China also suffer from power failures.

Louis (pseudonym), the owner of the Xiaopeng P7 who just bought the Xiaopeng P7 in August this year, told the IT Times reporter that because new energy vehicles should not be overcharged, he usually charges up to 90% of the electricity, and the actual battery life is usually around 513km. The officially announced NEDC has a range of 562km, which is a 10% discount.

In the case of air conditioning in winter, the cruising range will even be discounted by 40%, and the minimum mileage is only 350km.

During short-distance driving, the power-off speed is almost visible to the naked eye. “After running 1km, the mileage suddenly dropped by 5-6km. But the more you run, the power will be smoother.” Louis said that the energy consumption was as high as 25.4kWh/100km when the driving distance became longer and the energy consumption would gradually increase. It fell to about 16kWh/100km.

As the running time increases, the energy consumption of Xiaopeng P7 will gradually decrease. Source: Interview object

“At the beginning, I would be uncomfortable with insufficient battery. After all, I can’t charge it at any time like a mobile phone, but because I will estimate the mileage to commute to work or in the city, and I am mentally prepared for the difference between NEDC and WLTP. Just like oil There is also a difference between the fuel consumption claimed by the Ministry of Industry and Information Technology and the actual fuel consumption.” Due to the restrictions of the parking environment in the community, Louis did not install a home charger. Thanks to the welfare policy released by Xiaopeng in September this year, car owners can enjoy the car at Xiaopeng Chao every year. The charging station enjoys 3000kWh free charging service.

The battery life parameters officially displayed by Xiaopeng P7, source: Xiaopeng Motors official website

In order to prevent mileage anxiety, Louis generally goes to the overcharge station to charge when the battery life is less than 100km, and it can charge up to 90% of the battery in more than an hour.

Joy (pseudonym), the owner of the Weilai ES8, also feels that the cruising range in winter will be reduced to 60% of the usual.