On April 21, Chang'an Deep Blue Tour, the technical exchange and sharing meeting was witnessed and participated by hundreds of media, and many technical personnel of Changan New Energy completed the in-depth decomposition of Changan Deep Blue.
At the press conference, Yang Dayong, vice president of Changan Automobile, said that it is necessary to aspire to create a new digital travel technology brand, apply tomorrow's technology to today's life, and bring consumers a diversified experience beyond this era. We can't use figurative words to express such a rich connotation, such a vast imagination, so there is only deep blue.
Therefore, the value brought by Changan Deep Blue to consumers is multi-dimensional and diversified. Specifically, Changan Deep Blue will provide four major values for new energy users of Generation Z: one is to innovate and reconstruct, through forward-looking innovative product design and industry-leading platform architecture, reconstruct users' cognition and imagination of future travel; second, the Internet of Everything: build a digital ecology of Skynet Interconnection to achieve unlimited expansion of all-digital scenes; third, experience at will: provide smart and interesting functional scenes and personalized customized smart services to help users freely broaden the boundaries of experience The fourth is low-carbon life: adhering to the concept of green and low-carbon sustainable development, providing efficient travel solutions and promoting the sustainable coexistence of man and nature.
Of course, the beauty does not only stay in the mind, Chang'an Deep Blue has made sufficient technical reserves.
For example, the world's first multi-energy supply form of pure electric drive platform and leading high-integration domain control architecture, we call it "all-electric digital platform", from then on "let the tram say goodbye to mileage anxiety" and achieve "thousands of people, commonly used and new car experience"!
The world's first super collector electric drive system with electric drive micronucleus pulse heating will "end the industry BUG of trams but Shanhaiguan"!
The first mass-produced hydrogen fuel cell car in China will accelerate the marketization process of the ultimate clean energy, "so that the blue sky will no longer become a hot spot"!
At the press conference, Mr. Deng Chenghao of Changan New Energy Automobile Technology Co., Ltd. shared a photo of 2017 and mentioned that this photo was at the National Convention Center at the time, and released the Shangri-La Plan. We should walk with the motherland and the national automobile industry, and strive to promote the high-quality development of China's new energy automobile industry.
People with ideals and ambitions, in the face of the cold market, the first thing to do is how to let customers recognize new energy vehicles, and then accept new energy vehicles, although the data at that time was only 6.2%, and even 40% of users were not clear about what new energy vehicles were. Moreover, public opinion is full of voices such as "IQ tax", "fraudulent compensation", "industrial garbage", etc., which deeply hurts the heart of each of our new energy practitioners. To this end, we are determined to make a new pure electric drive dedicated platform with completely independent intellectual property rights and positive design, and it will extend a series of pure electric drive special products to provide users with the highest quality new energy experience and completely improve consumers' inherent impression of new energy vehicles. So in the Shangri-La plan, we released the development plan for EPA1, a dedicated platform for pure electric drives.
From 2017 to 2022, five years of grinding a sword, about 2,000 people insist, today, I am excited to tell you that our EPA1 platform will be equipped with C385 officially ushered in the mass production moment. Below, I will formally interpret our EPA1 platform.
Speaking of the three-electric system, Anjian has always done a detailed decomposition, one is the deep integration of all in one, that is, a smaller volume, lighter weight, more integrated functions and more extreme performance, improving the effective utilization of vehicle space and weight; the second is a safer system, new energy vehicles compared to fuel vehicles, the biggest feature is the addition of three electric systems, safe and reliable three-electric system is the key to the maturity of the industry; the third is more efficient power, return to the original intention, the essence of electrification is the pursuit of higher drive efficiency, The efficiency of the three-electric system is one of the most core indicators of leadership.
At the press conference, Su Zhong, chief product officer of Changan New Energy, shared his 2017 inspiration to join Changan New Energy under the inspiration of the Shangri-La plan. So far, the vehicle team of more than 700 people is working hard to recreate several classic new energy vehicle products with million-level sales.
In order to solve the three major pain points of the user's electric vehicle use, first of all, from the short endurance, manifested in the gap with the fuel vehicle, the high and low temperature mileage shrinkage; the second is the slow energy replenishment, fast charging for 1 hour, slow charging 8-10 hours; third, the user has doubts about safety, the battery has overheating hidden dangers, and the safety of the whole vehicle is facing challenges.
Su Zhong led their respective teams day and night, wearing stars and wearing the moon, when their ideas collided together, realizing the perfect integration of the three electric and the whole vehicle, and the technology and users complemented each other.
Facing the three major pain points that users are concerned about, we take customer experience as the core, and customer experience drives technology advancement. In terms of safety, in order to alleviate the anxiety of battery safety, Anjian led the team to break through the battery package of thermal runaway protection technology; in terms of short battery life and slow energy replenishment, in order to improve the efficiency of energy replenishment, Su Zhong and Anjian explored a more efficient energy supplementation solution.
Adhering to the dream of developing the industry's top three-electric system, the deeply integrated super collector electric drive born according to the all IN ONE design concept gives the vehicle more layout possibilities because of its higher integration and smaller volume. When the volume power density of the superset drive reaches the industry's best level, the arrangement of the rear drive becomes possible. The determination of the rear-drive architecture ensures the ultimate performance of the EPA1 platform, and thus builds an all-electric platform that is compatible with a variety of power configurations and is highly platformized and modular.
Similarly, the domain-controlled electronic and electrical architecture born according to the ALL IN ONE design concept has given birth to a deeply integrated intelligent vehicle domain controller, intelligent cockpit domain controller and intelligent driving domain controller, thus realizing the perfect integration of intelligent vehicle control, intelligent cockpit and high-level intelligent auxiliary driving, and giving the EPA1 platform a commonly used and new digital experience.
The two teams, complementing each other, the technological innovation of the Sandian team and the user thinking of the vehicle team collided with each other and intertwined with each other, and finally gave the EPA1 platform the best soul.
Today, we will be the first in the industry to propose the concept of powertrain electrical efficiency, referred to as electrical efficiency. At present, the mainstream electrical efficiency of the industry is about 70%-75%. Through a series of optimization measures, Changan New Energy can achieve an electrical efficiency of 78%, which is higher than the industry's optimal level. For range extenders and hydrogen fuel cell vehicles, in addition to the powertrain drive electrical efficiency, we will also pay attention to the power system power generation efficiency indicators. This refers to the amount of electricity that can be net output per unit weight of fuel or hydrogen. When the powertrain drive electrical efficiency and power generation efficiency are combined, it can characterize the fuel consumption and hydrogen consumption levels of extender and hydrogen fuel cell vehicles.
In order to improve the system efficiency of the EPA1 platform, we have proposed a large number of original solutions from the dimensions of electric drive system, extended range system and hydrogen fuel system.
At present, in the super collector electric drive technology, the cumulative number of patents applied for has reached 163.
Changan's new generation of super collector electric drive equipped with self-developed high-frequency pulse heating technology, can achieve ultra-low temperature heating, in the -30 °C environment, the battery heating speed can reach 4 °C / min, low temperature power increased by more than 50%, low temperature charging performance shortened by more than 15%, greatly alleviating the experience of electric vehicles in extremely cold weather.
In terms of appearance, closely following the mainstream aesthetic standards of young people at present, such as the use of angular closed grilles, "hatchback" shapes to highlight the sports wind, hidden door handles and through-type taillight design, the entire appearance of the shape looks relatively young and sporty. The body size of Changan Navy C385 is 4820mm, 1890mm and 1480mm respectively in length, width and height, and the wheelbase is 2900mm.
In terms of side, the current popular hidden door handle and closed aerodynamic wheel design Of course, this Changan C385 is not absent, and the wind resistance coefficient is as low as 0.23Cd, which is comparable to the Tesla Model 3 level. The large spoiler with the through-type taillight group enhances the overall tone of the car in terms of visual perception.
Changan Navy has a 50:50 front and rear axle load ratio, Changan Navy This axle load distribution ratio is conducive to the uniform wear of tires, to ensure that the car has better cornering characteristics and driving stability.
In terms of interior, according to the rendering drawings given by the previous official, the dashboard and the 14.6-inch floating central control screen with intelligent steering are independent layouts, and the entire interior design is still quite crisp. The steering wheel adopts a double-frame design steering wheel, and there are many button designs on the left and right sides of the steering wheel, the left buttons are probably controlled by assisted driving, and the right side is probably controlled by multimedia.
From the center control screen, you can find such as: seat ventilation, seat heating, co-driver leg rest, these will be equipped. In addition, the new car is also equipped with a Sony audio.
In terms of intelligence, equipped with 8155 chip with 105K DMIPS computing power, the future can achieve up to L4 level intelligent driving, support intelligent auxiliary driving based on point A to point B under the high-precision map navigation path, and use scenarios include automatic lane change, up and down ramps, etc. In terms of intelligent parking, in the structured parking lot, we can park according to the memory path and remote driving, and we can also realize automatic parking and remote driving based on high-precision maps.
Regarding the electric drive system, the maximum efficiency can reach 95% with 163 patents, the eight-layer flat wire winding design increases the efficiency by 0.9%, and the flat wire winding design will normally reduce the motor noise, which can be seen in the following figure.
Changan Deep Blue All-Electric Digital Platform is a special platform for electric drives in the form of multi-energy replenishment that has been honed over five years, with four high attributes: the electrical efficiency of the extreme power system drive; the high performance of the four-wheel drive in the future; the high intelligence based on the domain-controlled electronic and electrical architecture; and the high safety of the three-layer protection of the core car cloud.
The all-electric digital platform redefines the leading position of the three-electric system through deep integration of All in One, safer and more efficient, and at the same time solves user pain points such as endurance, energy replenishment, and safety, and can meet users' imagination of beautiful travel through efficient environmental protection, digital experience, and ultimate performance.
This is the key to the success of EPA1 all-electric digital platform and C385, in the future, we hope to use our efforts to bring you the most beautiful digital travel experience! Please wait and see.