In terms of product design, Xiaomi Auto will continue Xiaomi’s consistent simple and stylish design concept. By adopting a streamlined body, minimalist interior design and intelligent driving experience, Xiaomi Auto aims to bring users a comfortable and convenient travel experience. At the same time, Xiaomi Auto will also focus on the energy efficiency and cruising range of vehicles to meet consumers' needs for long-distance travel.

  As for the front face, Xiaomi SU7 adopts a very sporty design. The low-lying posture is full of impact. The application of a variety of lines makes it contain power in elegance. Coupled with the real air duct design below and the sharp edges. Surrounded by the bottom, it is very in line with the mainstream aesthetics of young people nowadays.

  In terms of headlights, the new car uses 4-lens 12-pixel matrix ADB adaptive headlights. A horizontal daytime running light runs through the center of the light group. The effect after lighting is excellent and the degree of originality is extremely high. What’s interesting is that after the light set is turned on, the interior will show the shape of the word “rice”, which can be regarded as one of the family-style designs of Xiaomi cars in the future.

In addition, Xiaomi SU7 has also created three car paint colors: Bay Blue, Elegant Gray, and Olive Green, bringing an aesthetic experience derived from nature and returning to nature. At the press conference, Lei Jun introduced the most and favorite color, It’s Bay Blue. This highly saturated color is very eye-catching in every scene.

  On the side of the body, the body size of Xiaomi SU7 is 4997/1963/1440mm, and the wheelbase is 3000mm. We can clearly see the large fastback design of SU7, which outlines a very dynamic waistline with concise lines, which is both graceful and powerful. The visual effect is very outstanding with the blessing of 3 times wheel-to-axle ratio, 2 times wheel height ratio and 1.36 times aspect ratio.

  It is worth mentioning that due to the pursuit of low wind resistance coefficient, that is, in order to have both low energy consumption and high endurance, SU7 took into account various details that may affect wind resistance at the beginning of the design, so it adopted a 28° front windshield. , 17° large fastback, full-profile G4 continuous curvature, frameless water drop rearview mirror, pebble lidar, semi-hidden door handle and other designs, and then went through 1000+ digital model simulation tests and 300+ clay model adjustments. And scientific wind tunnel testing, its wind resistance coefficient reached 0.195Cd, which also enabled Xiaomi SU7 to achieve the achievement of "the lowest wind resistance of mass-produced cars in the world". The rear of the car uses a highly recognizable halo taillight. The design is inspired by the halo of Saturn. It uses 360 632nm ultra-red LED elements to form a progressive dynamic light strip. When lit at night, it has a sense of design that spans time and space.

 At the same time, Xiaomi SU7 is also equipped with an electric liftable rear wing, which can provide additional downforce. Coupled with the more exaggerated surrounding design, it is full of combat atmosphere. Finally, Lei Jun said that the design of Xiaomi SU7 has been recognized by many of the world's top designers, including Chris Bangor, which shows his confidence and love for the new car's exterior design.

Electric drive

  The following is a formal introduction to the five core technologies. The first is the electric drive, that is, the motor. Xiaomi Motors has self-developed three super motors, HyperEngine V8s and HyperEngine V6/V6s, using a number of innovative technologies such as bidirectional full oil cooling and S-shaped three-dimensional oil circuit design, which have reached industry-leading standards. For the Xiaomi Auto team, research and development is not easy.

  The performance of these three motors from low to high are V6, V6s, and V8s, respectively, representing the number of cylinders in the era of fuel vehicles. That is, V6 represents the power standard similar to the V-shaped six-cylinder engine in the era of fuel vehicles, and so on. The HyperEngine V6/V6s super motor ranks first in the industry with a speed of 21,000 rpm, surpassing the world's most powerful mass-produced motor (Tesla Model S Plaid 20,000 rpm). Among them, the HyperEngine V6 super motor has a maximum power of 299 hp and a maximum torque of 400 N·m, while the HyperEngine V6s super motor has a maximum power of 374 hp and a maximum torque of 500 N·m.

  HyperEngine V8s uses two-way full oil cooling and S-shaped three-dimensional oil circuit design. It also uses 8-layer flat wire winding technology. The power density reaches 10.14kW/kg, which also greatly exceeds the current most advanced motor parameters. And while achieving top-level heat dissipation, the motor achieves an efficiency of 98.11%, with a maximum output power of 425kW and a peak torque of 635N·m.

Xiaomi has a unique set of insights on motors, that is, "speed is king", which is indeed the right choice in the current technical path. The speed of V6 and V6s is 21,000rpm, and the speed of V8s is 27,200rpm, which are already terrifying. Data. At the same time, Xiaomi announced that it has successfully pre-researched the next generation super motor. Through the laser solidification winding process of carbon fiber, the rotor has achieved a maximum speed of 35,000 rpm in the laboratory.

  V6 and V6s motors have been put into mass production and are available in cars. The Xiaomi SU7 that we can buy in a few months is equipped with this motor. The Xiaomi SU7 Max version uses dual motor all-wheel drive with a peak torque of 838N·m. The total power is as high as 495kW, the maximum speed can reach 265km/h, the acceleration from 0-200km/h is only 10.67 seconds, and the acceleration from 0 to 100km/h is as fast as 2.78 seconds (minus the starting time)

Battery

  For electric vehicles, the battery is also a core technology. Not only does the battery cost account for a very high proportion of the total vehicle cost, but the excellence of the battery also affects the core strength of the product such as battery life and safety. Xiaomi SU7 MAX version uses the 871V silicon carbide high-voltage platform, which can meet the needs of ultra-fast charging. Lei Jun joked at the press conference: At present, many 800V platform models cannot reach 800V, and even 500V and 600V claim to use the 800V platform. Xiaomi Motors is more pragmatic, although it has reached the "quasi-900V" claimed by its peers. ", but still calls itself the 800V platform.

  The battery pack of the new car uses CATL’s Kirin cells, and it has also developed the world’s first CTB integrated battery with inverted cells. This is an absolutely novel technology that has never been used by a manufacturer in a mass-produced car before. The design of the inverted battery core can instantly discharge energy downward through the pressure relief valve in the middle of the battery core in the event of thermal runaway, which can greatly improve safety. The CTB integration technology is relatively conventional. It adopts a two-in-one design of the vehicle floor and battery cover, which not only releases 10mm of additional interior height, but also improves integration efficiency and makes it more rigid. In addition, Xiaomi has introduced With technologies such as multi-functional elastic interlayer and minimalist wiring harness, the safety of the battery pack is excellent. The capacity of Xiaomi car battery packs can reach up to 150 degrees, and the theoretical CLTC cruising range can reach 1200km+. The battery packs currently in mass production have cruising ranges of 668km and 800km under CLTC conditions, using an 800V high-voltage platform. The MAX version of the model has super fast charging, and the battery life can be increased by 220km after 5 minutes of charging.

  It has to be said that Xiaomi has basically led the industry in terms of batteries, with four core parameters: 871V silicon carbide high-voltage platform, CTB cell inversion technology, strong battery safety and powerful thermal management. If you have clear needs in terms of cruising range, charging speed, etc., then the MAX model, as the "master" of Xiaomi's technology, is definitely worth trying.

Large die casting

  With its self-developed 9100t super large die-casting technology - Xiaomi HyperCasting, Xiaomi has become the only domestic automobile manufacturer that independently develops large die-casting equipment clusters and die-casting materials at the same time. This is a set of integrated die-casting equipment that can integrate multiple parts into one. The most direct benefit is that the rear floor of Xiaomi cars has been integrated with 72 parts, with 840 fewer solder joints and a 17% reduction in overall weight. The intensity is also higher.

At the same time, the disadvantage of one-piece die-casting is that it is difficult to repair after a collision and the maintenance cost is high. Xiaomi Motors has also optimized this aspect and added a special reinforcement device behind the one-piece rear floor, including the middle The high-speed crumple zone and the low-speed crumple zone make it less likely to hit the integrated die-cast parts when facing a rear collision. This not only increases driving safety, but also helps consumers reduce maintenance costs.

  Another major difficulty in die-casting bodywork is the material. No matter how perfect the design is, using unsatisfactory materials cannot guarantee the strength and durability of the parts. In response, Xiaomi has developed a high-strength, high-toughness, heat-free and environmentally friendly die-casting material, named " "Titan Alloy" is the optimal alloy formula selected from 10.16 million formulas to ensure the perfect combination of strength, toughness and stability.

Smart cockpit

  As a company that started with smartphones, Xiaomi is also very good in cockpit. To sum up, it allows consumers to see more possibilities to realize the vision of "Internet of Everything". The interior of the vehicle is wrapped in a large amount of leather and soft materials, and the visual experience is relatively refined. It is equipped with a 16.1-inch 3K ultra-clear central control screen, a 56-inch large HUD head-up display, and a 7.1-inch flip instrument screen. At the same time, the new car also supports the expansion of two flat screens in front of the two rear seats, and the entire vehicle has 5-screen linkage. In addition, it fully supports wireless CarPlay, which is extremely practical. Under the T-shaped area of the center console, in addition to the wireless charging panel and water cup holder, Xiaomi SU7 also retains four physical buttons, which are air-conditioning temperature adjustment, air-conditioning air volume adjustment, rear wing lift control button and air suspension lift control button. The car machine has a built-in operating system of ThePaper OS. The chip is the latest Snapdragon 8295, and the AI computing power is 30TOPS. The multi-tasking flexible framework allows desktop applications to be dragged and resized at will, and automatically adapted to various devices. It also supports in-car The mobile phone system is deeply adapted to mainstream car applications. Mobile phone applications can be pinned to the car and instantly transformed into native car applications. For example, when you use map navigation on your mobile phone, the mobile phone page can be displayed directly on the car machine. At the same time, you can also seamlessly transfer the software pages on the mobile phone screen to the car machine for continued operation, such as chat software, video software, conferencing software, etc. All are compatible and very interesting. And the most surprising thing is that Xiaomi has also opened up unified standardized interfaces and rich standard protocols, creating the strongest exclusive CarIoT ecosystem. The built-in CarIoT expansion base supports versatile access to a range of devices, including smart fragrances, etc. , four sets of Pin point power supply communication design can expand the physical buttons, coupled with the "Internet of Everything" logic software and hardware package, you can achieve many interesting functions, such as mobile phone video conferencing can share the camera outside the car, and the reading light in the car can be called Mobile phone light sensors, etc. The smart cockpit, as the last link in the "full ecology of people, cars and homes", officially transforms cars into a key carrier of an advanced mobile smart space. Based on Xiaomi ThePaper OS, Xiaomi has built a unified visual interaction system and realized a comprehensive sharing ecosystem from software to hardware, which will also become an important core of Xiaomi Automobile in the future.