At Xiaomi Auto’s technology conference held on December 28, Xiaomi Auto’s first model, Mi SU7, was officially released. In addition, Xiaomi Motors also released three motors: Super Motor V6, Super Motor V6s, and Super Motor V8s; 800V silicon carbide high-voltage platform, full-stack self-developed super large die-casting technology, full-stack self-developed intelligent driving technology, and intelligent cockpit system. Technical architecture and many other technologies.
Xiaomi SU7 debuts, positioned as a C-class high-performance ecological technology sedan
Officially, Xiaomi SU7 is positioned as a C-class high-performance ecological technology sedan and will be available in three body colors: Gulf Blue, Elegant Gray, and Olive Green. In terms of design language, allChris Bangor, one of the top ten most famous car designers in the world, serves as Xiaomi's car design consultant. The overall design draws inspiration from nature and has an intuitive aesthetic design concept.
In terms of appearance details, the headlight design of the new car is inspired by nature. The design core of the headlights is the smooth beauty of water droplets, which is officially called "water drop headlights". The headlight is equipped with a 4-lens, 12-pixel matrix ADB self-transparent headlight, which can intelligently adjust according to changes in light, providing excellent lighting when driving at night. 160° "ultra-wide-angle lighting (80° on one side) expands the illumination range to ensure that the road surface is clearly visible. The steering auxiliary light automatically illuminates the inside when bending, greatly improving night driving safety.
At the same time, the two sides of the front enclosure of the new car are equipped with vertically arranged triangular ventilation openings, and the heat dissipation opening in the middle adopts a complex double-layer nested design. The overall combination gives the new car a good sporty feel. Xiaomi SU7 adopts a continuous but angled ripple surface, which runs through the 175° curved surface of the car body, just like the moment when the ripples are about to disappear after a drop of water falls on the water surface, the lines are elegant and contain the beauty of power.
Looking from the side of the body, the new car adopts a coupe-style body line, with the front and rear fenders protruding from the body, creating a wide-body visual experience. In addition, the new car uses semi-hidden door handles, and the door panels are not carved with too many lines, which not only reduces wind resistance but also improves the overall feel. In terms of body size, the length, width and height of the new car are 4997/1963/1440mm respectively, and the wheelbase is 3000mm. According to official data, the drag coefficient of Xiaomi SU7 is only 0.195.
At the rear, the new car adopts the popular through-type taillight set, officially called the "halo taillight". The halo taillight strip is 2.48m long and consists of 360 632nm ultra-red LED light-emitting elements. When lit, it has Very high recognition. At the same time, the rear surround of the new car adopts a different color design from the body, and large-size diffusers are added to both sides. In addition, the new car is equipped with a liftable electric rear spoiler to further enhance the sporty atmosphere of the vehicle.
In terms of interior, the new car offers three colors to choose from: Galaxy Grey, Twilight Red, and Obsidian Black. In terms of details, the new car is equipped with Xiaomi Auto's self-developed smart cockpit system, which uses a 7.1-inch flip-up full LCD instrument panel and a 16.1-inch suspended multimedia central control screen with a resolution of up to 3K. The car uses the Snapdragon 8295 chip. At the same time, the new car uses a three-spoke multi-function steering wheel with function knobs and buttons on both sides, and is also equipped with a 56-inch HUD display.
In terms of seating and storage space, the new car has a vertical seating space of 1012mm in the front row, 105mm of knee space in the rear row, a trunk volume of 517L, and a front trunk volume of 105L.
In terms of safety, the entire Xiaomi SU7 series comes standard with 16 active safety configurations; in addition, it is equipped with Xiaomi’s self-developed active safety simulation verification system and a very large-scale scene library with Chinese characteristics; Xiaomi’s self-developed 4D spatio-temporal annotation technology enhances two-wheeled vehicles Special identification enables easy response to complex road conditions; forward emergency braking is achieved, with a design target of no more than one false trigger every 300,000 kilometers, providing comprehensive active safety protection.
In terms of power, Xiaomi SU7 uses a dual-motor four-wheel drive system with a combined maximum power of 495kW and a combined maximum torque of 838Nm. The acceleration time to 100 kilometers per hour is 2.78 seconds, and the top speed can reach 265km/h. In terms of batteries, new cars are equipped with 101kWhternary lithium battery provided by CATL Package, adopts 800V high voltage platform, with a maximum battery life of 800km. In terms of charging, the battery life can be increased by 220km in 5 minutes and 510km in 15 minutes. In addition, the new car is also equipped with Boost mode for unlimited freedom Customizable driving modes.
In addition, Xiaomi SU7 will also be launched with a 73.6kWh battery packSingle motor drive Model, The motor power is 220kW, the maximum torque is 400Nm, the acceleration time from 0 to 100 kilometers is 5.28 seconds, and the top speed is Up to 210km/h. New car< /span>< span>Using a 400V voltage platform, the battery life is 628km and 668km respectively .
Launched three motors with maximum speed up to 27200rpm
In terms of Xiaomi Automobile technology, Lei Jun announced that Xiaomi Automobile has launched two motors, Super Motor V6 and Super Motor V6s. Both motors are manufactured by United Electronics and Huihui.Sichuan United Development. Among them, super motor V6 has a maximum power of 220kW, a maximum torque of 400N·m, a speed of up to 21,000rpm, and uses a 400V voltage platform; super motor V6s has a maximum power of 275kW, a maximum torque of 500N·m, and uses an 800V voltage platform. Lei Jun said that the two motors have been put into mass production and will be installed on the first model Xiaomi SU7.
At the same time, Xiaomi Motors also announced the launch of Xiaomi super motor V8s, which has a maximum power of 425kw, a maximum torque of 635N·m, a power density of up to 10.14kw/kg, and a maximum efficiency of 98.11%. Xiaomi super motor V8s has a maximum speed of 27200rpm and a strength of 960MPa. Lei Jun said that Xiaomi Super Motor V8s will be officially launched in 2025.
Self-developed 800V silicon carbide high-voltage platform
At the press conference, Xiaomi Motors announced the launch of a self-developed 800V silicon carbide high-voltage platform with a maximum voltage of 871V. In addition, Xiaomi Motors also launched CTB integrated battery technology, with the world’s highest volume efficiency of 77.8%. The thickness of the battery pack + bottom plate of this technology is 120mm, the wiring harness is reduced by 91%, and the wiring harness saves 3% space.
Xiaomi's battery has passed the world's most stringent thermal failure safety standards, using 17 layers of high-voltage insulation protection, the largest cooling area of 7.8m² in its class, and using 165 pieces of aerogel for heat insulation. Xiaomi's battery adopts Xiaomi Car Cloud collaborative safety warning system and adopts the industry's first cell inversion technology to ensure the safety of the passenger compartment to the greatest extent.
At the same time, Xiaomi cars use high-efficiency dual-mode heat pumps to heat (air-condition) the passenger compartment. When heating, no electric auxiliary heat is needed in an environment of -15°C, and it can also work normally in an environment of -20°C.
In addition, thermal management of battery packs and motors can be performed. The three-heat source step-by-step heating technology of low-temperature battery life retention rate, low-temperature air conditioning heating speed, and low-temperature charging speed will be used to achieve higher thermal management efficiency. At the same time, Xiaomi Motors announced that it will build its own battery pack factory. Currently, it has applied for 132 patents for technological innovation in the battery field and has authorized 65 patents.
Full stack self-developed super large die-casting
Xiaomi Motors has launched a fully self-developed 9,100-ton super large die-casting technology, covering an area of 840 square meters, with a total weight of 1,050 tons and a half-width mold of 86 tons. And for. For super large die-casting technology, Xiaomi has self-developed Xiaomi Titan alloy materials. It is currently the only domestic automobile manufacturer with mass production of self-developed alloy materials. It also develops self-developed structural design, using a 72-in-1 integrated die-cast rear floor and innovative three-section Anti-collision design.
Full stack self-developed intelligent driving technology
Xiaomi Motors adopts full-stack self-developed intelligent driving technology, with a total investment of 3.3 billion yuan in the first phase, which has now been increased to 4.7 billion yuan. It has a dedicated team of more than 1,000 people, testing more than 200 vehicles and testing mileageMore than 10 million kilometers. Xiaomi Auto adopts self-developed underlying algorithms, and the BEV+Transforer+occupancy network is fully integrated into the large model.
Xiaomi smart driving's zoom BEV technology supports more accurate parking scenes, wider viewing of urban scenes, and farther viewing of high-speed scenes. Super-resolution occupancy network technology supports accurate identification of special-shaped obstacles with an accuracy of less than 0.1m. Evening peak city piloting can achieve zero takeover throughout the entire journey and can handle 15 types of road conditions.
In terms of hardware, Xiaomi cars will be equipped with two 508TOPS NVIDIA DRIVE Orin chips, 1 lidar, 11 high-definition cameras, 3 millimeter wave radars, and 12 ultrasonic radars. The integrated lidar has a maximum detection range of 500m, has 1.53 million point clouds/second, and has heating and defrosting windows.
Xiaomi Auto also has a valet parking function, which can realize many functions such as automatically crossing the gate, giving way to pedestrians, parking into a parking space, and smart summoning. In particular, it is equipped with a mechanical garage parking function that can successfully park with only 5cm left on one side.
Xiaomi Smart Cockpit System
Xiaomi Motors also released a smart cockpit system, equipped with the Snapdragon 8295 cockpit chip, equipped with a 16.1-inch central control ecological screen and a 56-inch large HUD. The 7.1-inch car-grade instrument screen has a flip function, and the Xiaomi Pad can be used as a rear expansion screen, thereby achieving five-screen linkage.
Xiaomi Pengpai OS is officially launched
Lei Jun has previously stated that Xiaomi ThePaper OS relies on the Xiaomi HyperConnect cross-end interconnection framework to open up more than 200 categories including Xiaomi cars, covering more than 95% of users' life scenarios.
At the press conference, Lei Jun introduced the three functions of Xiaomi Pascal OS after it is launched on the car, including an interactive experience consistent with mobile phones and tablets, which can be quickly used without learning. In addition, it is fast to boot up, start up quickly, upgrade quickly, and have a smooth system experience. The mobile phone × car machine is seamlessly connected across terminals, making the experience more intuitive and smooth.
In addition, the Xiaomi tablet also supports external connections and can be transformed into an ecological expansion screen in seconds. Lei Jun announced that the Xiaomi CarIoT ecosystem is now fully open to three parties. Lei Jun also announced that Xiaomi’s smart cockpit also supports CarPlay and AirPlay, as well as iPad rear seat expansion to control air conditioning, music and seats.
Xiaomi Auto Modena Technology Architecture
Xiaomi Motors released the Moderna technology architecture, with the goal of achieving 100 "first, only, and best" features. Judging from official information, Modena’s technical architecture includes underlying technology modules such as electronic and electrical architecture, energy system, drive system, chassis system, thermal management system, and AI artificial intelligence. In addition, Lei Jun also announced a list of suppliers, including Bosch, Brembo, ZF, Continental and many other top global suppliers.
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Editor: Xu Zhenyu