In the process of daily use, pure electric cars can never avoid the pain point of "mileage". Especially in the big winters. In the cold and windy winter, the battery life performance of electric vehicles will be affected by many factors such as the attenuation of low-temperature battery capacity, the consumption of air-conditioned seat heating system, and the increase in driving resistance.
So, will your electric car be passively sluggish in the harsh winter environment? In the face of the situation that there is a possibility of power loss at any time, do you dare to turn on the air conditioner in the car?
In the face of the winter endurance test, the FAW-Volkswagen ID.CROZZ intelligent pure electric family began a crowd test on the lake road of Miyun Reservoir in Beijing. The test fleet consisted of 5 ID.4 CROZZ and 5 ID.6 CROZZ.
The test route passes through Miguan Road, Liuxin Road, Jingmi Road, a collection of different road conditions such as lake, climbing, straight, curves, etc., the route has experienced low temperature, large road obstruction and other environmental factors that are not friendly to pure electric vehicles, which tests the endurance of the car at the same time, the stability, operability and intelligent control system and software facilities of the car are not small tests.
On the day of the test, coinciding with the cooling, there was light snow in Miyun, the road surface was wet and slippery, the body temperature reached -5 °C, and the difficulty of the endurance test increased sharply, which caused a severe climatic test for the activity. In order to ensure that the test results are transparent and true and effective, the ten vehicles participating in the actual test were accurately "corrected" before departure:
Among them, all vehicles depart close to full power and complete the uniform tire pressure according to the requirements; when the first lap starts, all car subtotal mileage is cleared by the staff; all vehicle air conditioning is set to 23 degrees Celsius AUTO, and the driving mode is recommended to use the B gear energy recovery gear.
After the confirmation of the on-site media, the test drive activity officially began. It is worth mentioning that in order to ensure the safety of travel, this test drive is also equipped with a team to deal with emergencies at any time to ensure that the activities and personnel are foolproof.
The measured results show that faw-Volkswagen ID.4 CROZZ converts full power endurance of 473km, with a endurance achievement rate of 86%, and FAW-Volkswagen ID.6 CROZZ converts full battery endurance of 472km, with a full power achievement rate of 83.5%.
In layman's terms, in the winter, the air conditioning in the car willfully turn on it!
Here is a little bit of ID.CROZZ's parametric knowledge.
FAW-Volkswagen ID.CROZZ intelligent pure electric family adopts 84.8kWh large-capacity battery pack, applies an all-aluminum shell + all-aluminum baseplate, has a high energy density of 175wh/Kg NCM 811, and can clearly feel the linear discharge during the driving process, ensuring that users do not need to deal with the accident caused by "sudden power failure" during use.
The heat pump system equipped with the FAW-Volkswagen ID.CROZZ intelligent pure electric family is the "B-side" of the refrigeration system, which can be understood as the reverse operation of the refrigeration system. The air conditioner has 8 solenoid valve devices, consisting of 5 globe valves (ASVs) and 3 expansion valves (EXVs), and can switch between 4 cooling modes and 3 heating mode scenarios through different combinations of 8 solenoid valves. In winter, the cold air of the intake system is heated by an expansion valve and then joins the hot air of the compressor through another expansion valve into the cabin. The dramatic increase in heating performance frees up more power for battery life.
At the same time, the new generation of electronic brake booster (EBB) and the electronic stability program ESC combined with the electronic stabilization program ESC to coordinate the operation of the regenerative braking system, which can achieve braking energy recovery with a deceleration value of up to 0.3g. When the motor capacity meets the braking requirements, the combination can achieve 100% braking energy recovery, further increasing the cruising range.
In addition, carbon dioxide as a refrigerant has the advantages of low GWP coefficient, non-flammable, non-toxic, no need for recycling, etc., and is applied in a closed internal circulation system, so that the driver and passenger can be assured and at ease.
So, from actual measurement to theory, if your pure electric car is the ID.CROZZ family, you can boldly turn on the air conditioner.