For users driving electric vehicles, the mileage is an unavoidable pain point. In winter, the battery life performance of electric vehicles is affected by many factors such as the attenuation of low-temperature battery capacity, the consumption of air-conditioned seat heating systems, and the increase in driving resistance. Users choose electric vehicles, in the final analysis, still pursue the word "practical". Does the endurance of electric vehicles give power in the end? Will it be passively slack in the harsh winter environment? In the face of an electric vehicle that may lose power at any time, can you drive the air conditioner in the car?
Who will solve these life-close question marks? In the face of the winter endurance test, FAW-Volkswagen ID.CROZZ intelligent pure electric family gave the answer. A few days ago, FAW-Volkswagen opened the first ID.CROZZ intelligent pure electric family winter endurance crowd test in Beijing on Huanhu Road of Miyun Reservoir in Beijing.
This year is the well-known "Year of Double La Niña", cold air activity is more frequent than usual, and it is more and more testing the endurance of pure electric vehicles. In this regard, we seize this environmental opportunity to let media friends really feel the ID at close range through the immersive interactive assessment of "visible and tangible". CROZZ intelligent pure electric family in winter endurance, driving control, comfort quality, intelligent interaction and other aspects of the strength of the fight, openly answer the doubts in the hearts of consumers.
The "Experimental Methods for Electric Vehicle Energy Consumption Rate and Driving Range" (GB/T 18386-2017) issued by the Standardization Administration of the People's Republic of China (hereinafter referred to as the National Standardization Commission) on October 14, 2017 stipulates that the maximum design of electric vehicle mileage test methods with a total mass of no more than 3500kg is two kinds of working condition method and constant velocity method, both of which are carried out in an indoor environment of 20-30 °C.
In the major endurance lists, different electric vehicles are ranked according to the NEDC working conditions as the standard, and the test conditions are relatively idealized. FAW-Volkswagen ID.CROZZ intelligent pure electric family tries to break through the "ideal" trap, close measurement to restore consumers' formal driving situation in winter daily life, and achieve an accurate endurance experience of "what you see is what you get".
The actual test site of Beijing Miyun Reservoir Lake Road, test driving 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, 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.
The event consisted of a fleet of 5 ID.4 CROZZ and 5 ID.6 CROZZ of the FAW-Volkswagen ID.CROZZ intelligent pure electric family, and 26 media representatives sent representatives to drive around the lake. On the day of the event, it coincided with the cooling, light snow fell in Miyun, the road surface was wet and slippery, the somatosensory temperature reached -5 °C, and the difficulty of the endurance test increased sharply, which caused a severe climate test for the event.
In order to ensure that the test results are open and transparent, 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.
The data of each lap of the entire runway around the lake is recorded by the on-site media supervision, and the measured results show that FAW-Volkswagen ID.4 CROZZ converts full-power endurance of 473km, with a endurance achievement rate of 86%; FAW-Volkswagen ID.6 CROZZ converts full-power endurance of 472km, and the full-power achievement rate is 83.5% So the excellent performance depends on the FAW-Volkswagen ID. CROZZ intelligent pure electric family has always been the pursuit of quality, as well as the accurate layout of endurance technology.
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.
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.
FAW-Volkswagen ID.CROZZ intelligent pure electric family design adopts a number of measures to reduce drag, including body & rearview mirror aerodynamic CFD optimization, hidden door handles, active intake grille, large rear wing design, fully wrapped bottom armor, etc., fully dimensional improvement of body wrapping, while ensuring a good appearance, while completing the further reduction of wind resistance; at the same time, ultra-low low rolling resistance wheels, paired with aerodynamic wheels, will continuously compress the rolling resistance, The overall combination brings a drag coefficient as low as 0.28Cd, making the FAW-Volkswagen ID.CROZZ intelligent pure electric family start and stop smoothly and move forward more freely.
Faw-Volkswagen ID.CROZZ intelligent pure electric family equipped with the permanent magnet synchronous power motor stator adopts a three-phase Hair-Pin hairpin winding, which reduces the current resistance better than the traditional winding using the current skin effect, while improving production efficiency and power density, and the winding design reaches 1.6kw/kg.
At the same time, the new generation of electronic brake booster (EBB) and the electronic stability program ESC are combined to form a coordinated 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, in the driving process, the control system composed of no virtual steering, DCC dynamic chassis, five-link suspension, etc. brings a comfortable control experience to media friends; good NVH control and double-layer glass settings isolate the wind and cold from the car, and the driving experience is more pure, while the configuration of the oversized seat and the oversized all-glass roof are convenient for test drivers to enjoy the winter cloud scenery while controlling the car.
Today, with the in-depth implementation of the "carbon neutral" and "carbon peak" policies, the development of electric vehicles has become the only way for national development. With more than 30 years of experience in car manufacturing, faw-Volkswagen ID.CROZZ intelligent pure electric family also relies on the scientific and technological blessing of the MEB pure electric platform to achieve the real cruising range of ID.6 CROZZ with an endurance of more than 565 kilometers, battery safety after a purgatory journey, and tank-like vehicle safety, bringing users a better quality guarantee.
The successful conclusion of this winter crowd testing activity is not only a milestone test of the FAW-Volkswagen ID.CROZZ intelligent pure electric family, but also a "people-oriented" attitude of FAW-Volkswagen, redefining a new benchmark in the electric vehicle market.