On December 20, the 2023 Pure Electric Vehicle (Cold Zone) Marathon officially launched fierce competition in the three northeastern provinces. With excellent low-temperature battery life, low-temperature charging and thermal management, the first new energy ace of the mainstream technology electric brand E - E 007 stood out among the competing models in the same class, and won the first place in the mid-sized sedan group in the competition with an excellent result of 7 hours, 47 minutes and 03 seconds, which interprets the profound technical level of Dongfeng Yipai.
During the competition, the E 007 competed against competing models, facing a series of challenges such as range attenuation and charging and discharging difficulties in extremely cold environments. The excellent results achieved by E 007 comprehensively demonstrate a number of key technologies of Dongfeng Yipai to overcome the work of new energy vehicles in extremely cold environments, break through the bottleneck of low-temperature technology in the industry, and lay a solid technical foundation for the brand to enter the mainstream middle and high-end market in the future.
The core technology of low-temperature charging and long battery life leads the mainstream of electric cars
The three northeastern provinces, with low temperature and ice and snow, have always been the first choice for many domestic and foreign automobile manufacturers to test in the cold zone. The competition traveled through Shenyang, Liaoning, Changchun, Jilin, and Harbin, Heilongjiang, with ambient temperatures ranging from -10 to -30, with a total mileage of more than 550km, covering different road conditions such as urban roads, highways, rural dirt roads, ice and snow slippery roads, etc., with multiple charging points set up along the way, and the one with the shortest time to finish the race won the championship of the participating car group.
The event focuses on the four dimensions of cruising range, charging speed, thermal management and reliability in extremely cold environments.
As we all know, low temperature is the "nemesis" of new energy vehicles, and the extremely cold environment below -10 has great lethality to the stability of new energy vehicles. Limited by the influence of the attenuation of the low-temperature performance of the lithium battery, the available power of the power battery of the new energy vehicle will inevitably "shrink" in winter, and the charging speed will also be seriously reduced, and the heating of the passenger compartment will also consume a lot of electricity and affect the battery life. However, the E 007 leverages advanced technology to create a low-temperature and long-lasting performance that surpasses its peers.
Since the beginning of the research and development, the E 007 has been fully considered for low temperature endurance, and the low temperature range attenuation of E 007 is reduced to 37 at -7 temperatures5%, in the first echelon of China.
E 007 is equipped with an industry-leading full-stack self-developed full-temperature heat pump system, which uses the ultra-low temperature and efficient heat exchange characteristics of refrigerant gas expansion to transfer air heat energy and motor waste heat to the air conditioning heating system under low temperature conditions, and the energy saving of air conditioning heating is more than 60%. There is also PTC heating, which can produce 25kw of thermal energy. Even at high temperatures, the heat pump system provides the passenger compartment, battery, motor, and electronically controlled cooling to ensure integrated thermal safety.
Through the coupling utilization of thermal energy, E 007 connects the management of the battery, motor and passenger compartment to achieve heat coupling distribution, effectively saving energy consumption and increasing the operating temperature of the battery. Among them, the minimum working temperature of the heat pump is reduced to -15, the energy saving is greater than 70% under low-temperature and high-speed working conditions, and the endurance is increased by more than 5% under low-temperature urban working conditions.
The E 007 is also equipped with an intelligent temperature control system, which intelligently adjusts the ratio of internal and external circulation of the air conditioner, reduces the heat loss of air exchange, and creates an ultra-low-load passenger compartment to further save energy consumption.
In addition, in order to improve the range performance, the body of the E 007 is also supported by a number of advanced design and manufacturing technologies. First of all, based on the positive lightweight design concept, E 007 uses a large number of hot-stamping steels and ultra-high-strength steels, as well as high-strength and thin-coated hot-forming laser tailored door rings and other advanced processes, taking into account the balance of vehicle performance and weight, to achieve as low as 2The lightweight coefficient of 8 has reached the leading level of steel body in the industry.
Secondly, the E 007 adopts a wide-body low-lying bow large slipback body design, and the vehicle has undergone more than 20 aerodynamic component optimization, 1000+ wheel styling and vehicle wind resistance optimization, 100+ hours of wind tunnel testing, and nearly 200 optimization scheme tests and verifications, and finally reached 0Ultra-low drag coefficient of 209.
Combined with the application of the above core technologies, E 007 can achieve a longer battery life than competing products at the same low temperature, greatly reducing the number of energy replenishment times during long-distance winter travel. At the same time, the E 007 is not "idle" in the stationary environment of the vehicle, and can automatically carry out low-temperature charging pre-heating, high-temperature charging pre-cooling, parking battery insulation, and creating a battery thermostatic chamber to avoid power loss.
Therefore, in the low-temperature charging link of the competition, we can see that the E 007 not only has a longer battery life, but also has a significant lead in charging performance than competing models. In addition, the Mach E power battery equipped with E 007 is developed with ultra-long battery life, ultra-high safety, ultra-fast charging and super intelligence, with the characteristics of extreme intelligence, using the Kalman filter algorithm based on the cell model, so that the SOX error is 3%, and the self-developed low-temperature pulse self-heating technology improves the heating rate in the low-temperature environment to 4 min, and improves the low-temperature battery life. By optimizing the particle size distribution of the cell, the lithium-ion diffusion capacity is increased by 20%, and the charging time of 30%-80% SoC in normal environment is only 26 minutes.
Powerful +Luxurious equipmentBuildHigh quality long haulRideExperience
On the day of the race, the long-distance low-temperature driving of more than 500 kilometers at every turn not only brought a severe test to the vehicle, but also a long-term mental test for the driver. Fortunately, the E 007 has ample power reserve and a wealth of luxury equipment to bring a comfortable long-distance driving experience.
The E 007 is equipped with the Mach E power system, and the rear-wheel drive model provides two power options: 160kW and 200kW, which is surging and easy to overtake. The percentage of energy efficiency of the electric drive assembly is 927%, and the daily power consumption is as low as 119kWh 100km, and obtained the "Energy Efficiency Star" authoritative certification certified by China Automotive Research Institute Huacheng Certification. There are also class-leading electric four-wheel drive models, which are more comfortable to drive in the snow in winter, with a motor power of up to 400kw, and can easily achieve 000 acceleration in 3 seconds.
Inside, the E 007's seats are equipped with ventilation and heating functions, an 8-point massage system that is rare in its class, and a silicone upholstery fabric made of the same material as the baby's pacifier to greatly reduce the fatigue of the journey.
It is worth mentioning that the E 007 adopts SOA intelligent cockpit, which can realize personalized customization in multiple scenarios and create a truly exclusive cockpit of "thousands of people and thousands of faces". In the snowy environment, you can completely customize the cockpit settings that are most suitable for you, and automatically call them every time you get on the car, bringing the most warm and considerate car experience.
During the long journey, the cabin also has a custom sound system made by China Panoramic Sound Wanos, equipped with 20 speakers, providing 71.2 channels, accompanied by a moving melody all the way.
After a series of severe tests of more than 550 kilometers, E 007 has shown its calm confidence in the face of extremely cold and low temperature environments, which fully marks that Dongfeng Yipai is at the forefront of domestic new energy technology. In the future, with the official launch of the E 007 in the first quarter, the new car will impact the mainstream sedan market and lead the further popularization of new energy models in alpine regions.