The five core technologies of the SU7 displayed by Lei Jun are only half of the answer sheet for car building, and the other half is the pricing. In the situation of opponents from front to back, it is difficult for Lei Jun, but he can overcome all difficulties to gain a foothold in this market. If you want to become the top five in the world's automobiles, such a grand goal is more conservative and modest than his junior Li Xiang shouted to become the world's first in 2030, but modesty makes people progress.
Text|Zhijia.com Summer rain.
Edit|Langlang Mountain and Mingzhi Mountain.
After ten years, the new car movement has involved every entrepreneur who has experienced the myth of Internet wealth creation into the rolling wave of great changes in the automobile industry unseen in a century.
And Lei Jun can be said to be the only one among China's first batch of Internet tycoons who personally built a car.
Counting the days to catch up with the world's No. 1 Xiaomi car.
With only three days left in 2023, on a winter afternoon in Beijing, Xueba Lei Jun stood at the National Convention Center and made a declaration of humility and awe for the automotive industry:"Make a 100 global first.
1. Global only.
1. The world's largest car. ”
This is the technical requirements put forward by Lei Jun for the Monard platform architecture developed by Xiaomi Auto, and let's show Lei Jun in nearly three hours to show the goals that Xiaomi Auto has achieved after 1003 days of R&D investment:
Highest in the world:27200rpm Xiaomi Super Motor.
Global Leader:10.14kw kg motor power density.
Highest in the world:98.11% motor peak efficiency.
Highest in the world:99.85% electronically controlled peak efficiency.
Highest in the world:92.39kwil electronically controlled volume power density.
Highest in the world:77.8% volumetric efficiency of Xiaomi CTB batteries.
The strictest in the world:Thermal runaway safety standard 78m' active liquid cooling area.
The only one in the world:High-safety CTB battery technology with inverted cells.
The only one in the country:Independently designed 9100T Xiaomi super large die-casting equipment cluster.
The only one in the country:It is an independent and self-developed die-casting alloy material patent car factory.
A world first:18-in-1 integrated die-cast aluminum triangular beam structure in the front compartment.
The largest in the country:105L of front trunk storage.
Highest in class:51000N-m DEG torsional stiffness of the whole vehicle.
Highest in the world:2000MPa high-strength hot stamping steel safety material.
World Premiere:An end-to-end perception decision-making model that can be mass-produced.
Handling Lead:World-class chassis, Elk test 82km.
Whether it violates the advertising law is another matter, but it doesn't look a little dazzling?
In only 1,000 days, less than three years, starting from scratch, is it possible to create a model that is ahead of its peers at birth in China's new energy vehicle market?
Unfortunately, the reality is that this is no longer possible.
But it's possible to build a great car, and that's the late-mover advantage. Xiaomi Automobile, which seems to be a late entrant, actually has a huge late-mover advantage, which can not only avoid pitfalls, but also follow the route of the winner.
The reason behind this is simple: it isChina's smart electric vehicle industry chain is maturing day by day.
Although there is no bottom line in the war, the major brands are highly converging.
If you take a closer look at the three recent press conferences, Huawei's Zhijie S7 launch conference, NIO Day of NIO and the ZEEKR 007 launch conference launched yesterday, each other's products are close in terms of performance, battery, intelligent driving, and intelligent cabin.
It should be pointed out here that the parameters are so close because of a common problem in this industry, that is, OEMs are unashamed to advertise the technology of the first-chain partner as their own self-developed technology.
In the automobile industry, the main engine factory occupies a dominant position, and the first business is helplessly hidden behind the scenes, and only chip giants with a monopoly position like Nvidia and Qualcomm are likely to be actively introduced by the main engine factory and increase their value.
Analyze the five core technologies of Xiaomi Automobile
So what technologies are developed by Xiaomi?
Lei Jun announced at the first Xiaomi automotive technology conference that the "Modena" architecture has five core technologies:
1. Xiaomi Super Engine
2. Xiaomi's self-developed CTB integrated battery technology
3. Xiaomi Super Die Casting Xiaomi Hypercasting
4. Xiaomi's full-stack self-developed intelligent driving technology, Xiaomi Pilot
5. Xiaomi Smart Cabin.
It involves five core areas of electric vehicles: electric drive, battery, large die-casting, intelligent driving, intelligent cockpit.
What is certain here is that whether it is a super motor or a CTB integrated battery, as well as a super die-casting machine, it is a product jointly launched by a leading businessman or a leading businessman.
Like the CTB battery itself is the technology of the CATL era, Xiaomi's biggest innovation should be the inverted placement of the battery cells, and the super die-casting machine is an 8800-ton die-casting machine from Haitian Group, but how to upgrade to 9100 tons belongs to Xiaomi's innovation.
The real owners of intellectual property rights should be Xiaomi Pilot and Xiaomi Smart Cabin.
Let's take a look at these five core technologies one by one.
1. Xiaomi Super Motor Xiaomi HyperEngine:
Lei Jun said that Xiaomi has developed three super motors, HyperEngine V8S and HyperEngine V6 V6S, which adopt a number of innovative technologies such as two-way full oil cooling and heat dissipation, S-shaped three-dimensional oil circuit design, and stepped dislocation design, which are comparable to the performance of the big V8 and big V6 powertrains in the fuel era.
The two core data of the motor are the speed and the energy density.
The motor used in the SU7 is HyperEngine V6, whose speed is 21000, Lei Jun said with a smile that this achievement was cut off by friends and failed to be released in the first time to become the world's fastest motor.
The HyperEngine V6 has a maximum power of 299 PS and a maximum torque of 400 Nm, while the HyperEngine V6S has a maximum power of 374 PS and a maximum torque of 500 Nm.
The friend that Lei Jun mentioned is the 22,000-rpm motor that Huawei is equipped with on the Zhijie S7, and in fact, there is also the 25,000-rpm motor used on the GAC Haobo GT.
However, Lei Jun said that Xiaomi's HyperEngine V8S super motor under development has a speed of up to 27,200rpm and a power density of 1014kW kg, more than 60% of Tesla's current state-of-the-art level, the world's first.
Xiaomi has applied for 155 patents for this motor, of which 60 have been authorized.
The HyperEngine V8S has an impressive high power output of 425kW and a peak torque of 635Nm.
At the same time, in terms of strength, heat dissipation and work efficiency, it has reached the "international leading level" certified by the China Electrotechnical Society and the Guochuang Center.
Motors with high rotational speeds and mass-production, automotive-grade capabilities require durable materials and efficient heat dissipation.
Lei Jun said that HyperEngine V8S can do this because it uses the industry's first 960MPa highest-strength special silicon steel sheet, which is more than twice as strong as the industry's mainstream products.
This steel sheet is a joint laboratory established by Xiaomi and Shougang in a year and a half to carry out 108 batches of tests, jointly solving the problems of silicon steel strength, magnetic properties and production.
It can be said that just in terms of the steel sheet itself, it is a big breakthrough.
In terms of heat dissipation design, Lei Jun explained that the HyperEngine V8S adopts two-way full oil cooling and S-shaped three-dimensional oil circuit design.
HyperEngine V8S super motor with up to 27,200 rpm.
The stator part is increased by 100% through the double-cycle three-dimensional oil circuit, and the maximum cooling of 20 degrees Celsius is realizedThe rotor uses a patented S-shaped oil circuit, which increases the heat dissipation area by 50% and achieves a maximum cooling effect of 30 degrees.
In addition, the stator silicon steel lamination also adopts a "stepped" dislocation design, which increases the effective heat dissipation area by another 7%.
HyperEngine V8S achieves 9811% motor efficiency.
The differentiated thickness design of the stator and rotor silicon steel sheet will be 02mm stator ultra-thin silicon steel sheet with 0The combination of 35mm rotor ultra-high-strength silicon steel sheet improves strength and efficiency.
At the same time, with the application of high-performance NdFeB permanent magnets, the traditional 54-slot 6-pole design patent blockade has been broken, and 8-layer hairpin flat wire winding has been adopted, and the slot filling rate is as high as 77%.
Motor rotor laser curing winding process.
However, what is even more surprising is that Xiaomi announced that it has successfully pre-developed the next generation of super motors, through the carbon fiber laser curing winding process, the rotor has successfully achieved the world's highest speed of 35,000 rpm in the laboratory.
However, it will take a long time to enter mass production.
2. Self-developed CTB integrated battery technology
The battery cells used in the SU7 are from CATL, and the CTB technology is also from CATL. At present, some models in the electric vehicle market have adopted this technology, which can greatly reduce the three-dimensional height of the battery pack and create more space for the cockpit.
Xiaomi's innovation is its claim to be the world's first self-developed inverted battery cell CTB integrated battery design, this structure can currently accommodate a maximum of 150 degrees of battery, the theoretical CLTC range can reach 1200km+, but the battery pack applied to the Su7 car is a 101kWh battery pack, and its published cruising data is that the four-wheel drive version can achieve a range of more than 800km.
Lei Jun said that through the floor cover two folds.
1. The design of inverted battery cells, multi-functional elastic interlayer and minimalist wiring harness, the integrated efficiency of the battery pack is 778%, an overall increase of 244% and released a height of 17mm.
The inverted core technology of the first power cell realizes the sharing of bottom space by multiple modules, further releasing the height of 7mm, and improving the integration efficiency by 58%。
This makes the interior space of the SU7, especially the height, larger than that of similar models.
Here is a brief introduction to what is the inversion of the battery cell, in fact, the battery cell is facing downward, and the design of the pressure relief valve facing down can quickly release energy downward in extreme cases, once **, it will not smoke into the cockpit.
Xiaomi's battery management software is fully stacked and self-developed.
At the same time, in terms of battery management, Xiaomi cars are equipped with a full-stack self-developed battery management system with the highest functional safety level of ASIL-D, and the battery cloud security technology is applied, which can collect data in real time and analyze and warn through the encrypted cloud of the private network, which can achieve active power failure within 4ms.
3. Self-developed 9100t super large die-casting technology
Lei Jun claims to have developed its own 9100T super large die-casting technology, Xiaomi Hypercasting, making it the only automobile manufacturer in China that independently develops both large die-casting equipment clusters and die-casting materials.
Here it can be said that this die-casting equipment is definitely from the first business, the largest die-casting machine produced by Haitian Group in China is 8800 tons, and Xiaomi will upgrade it to 9100 tons, which should be a major innovation.
9100t large die-casting equipment cluster.
The cluster equipment covers an area of 840m, with a total weight of 1050t, which is equivalent to the size of two basketball courts, and the clamping force reaches 9100t, which is the top of the industry.
Xiaomi's self-developed visual large model quality judgment system can complete the inspection within 2 seconds, with 10 times the high efficiency of manual labor and 5 times the high accuracy of the elite.
The application of this technology has enabled the rear floor of Xiaomi cars to achieve the feat of integrating 72 parts, reducing the number of solder joints by 840, reducing the overall weight by 17%, and reducing production man-hours by 45%.
In terms of material research and development, Xiaomi has developed its own high-strength, high-toughness, heat-free and environmentally friendly die-casting material Titan Alloy.
Through the self-developed multi-material performance AI** system, Xiaomi selects the best alloy formula from 10.16 million formulas to ensure the perfect combination of strength, toughness and stability.
This Titan contains 30% recycled aluminum, reducing carbon emissions by 352 per part53kg, the peak capacity is equivalent to planting an additional 4.88 million trees per year.
Three-section rear floor design.
At the same time, in order to overcome the disadvantages of traditional large die-casting, a three-stage repairable design is adopted: integrated die-casting rear floor + medium and high speed collapse area + low speed collapse area.
In low- and medium-speed collisions, there is no need to replace large die castings;In high-speed collisions, this design can meet the 90km h rear collision standard, which exceeds the highest global standard.
4. Full-stack self-developed intelligent driving technology: It will be among the first echelon of the industry in 2024
In terms of intelligent driving system and technical route, Xiaomi car adopts adaptive zoom BEV technology + road large model + super-resolution OCC occupancy network technology.
This is in line with Tesla's technical roadmap.
However, Lei Jun said that the adaptive zoom BEV technology is the first in the industry, which can zoom like the human eye and can adaptively call different perception algorithms according to different scenes. The perception grid can be as small as 005m, up to 02m, the recognition range extends from 5cm to 250m, the parking scene is more accurate, the urban scene is wider, and the high-speed scene is farther.
Three key technologies of Xiaomi's intelligent driving.
At the same time, Xiaomi's industry-first road model can not only recognize real-time road conditions, intelligently adjust the driving trajectory, but also navigate smoothly without relying on high-definition maps in complex intersection conditions.
By learning the working conditions of complex intersections and the driving habits of old drivers, they can formulate a more reasonable driving trajectory and carry out dynamic detours for emergencies.
In terms of obstacle recognition, Xiaomi's super-resolution occupancy network technology realizes unlimited types of special-shaped obstacle recognition.
Compared with the traditional way of occupying the network that relies on natural language models to describe obstacles into squares, Lei Jun claims that Xiaomi's innovative super-resolution vector algorithm can simulate all visible objects into three-dimensional objects with continuous surfaces, thereby improving the recognition accuracy to 01m, reached2 times the industry level, 3 times that of Tesla.
Huawei is definitely not convinced of this.
After the recognition rate is improved, Xiaomi has developed a one-click noise reduction function, which can completely eliminate the impact of rain and snow on recognition, greatly reducing the probability of misidentification.
In terms of hardware, the system is equipped with top-of-the-line configurations, including two NVIDIA Orin high-computing power chips, with a comprehensive computing power of up to 508TOPS. The perception hardware includes 1 lidar, 11 high-definition cameras, 3 millimeter-wave radars and 12 ultrasonic radars (MAX version of the model).
The entire intelligent driving route is roughly consistent with Tesla's current end-to-end intelligent driving route. However, Lei Jun claimed that the world's first mass-produced end-to-end perception decision-making model developed by Lei Jun has been implemented, showing amazing strength in application scenarios such as mechanical storage locations.
Compared with the traditional perception with an error of more than 10cm when parking, it is impossible to park in a parking space with the same width as the car and only 5cm left and right, while Xiaomi's perception decision-making model can observe and dynamically adjust parking in ultra-difficult parking spaces in real time through the two-in-one design of perception and decision-making algorithms.
Lei Jun showed super confidence in Xiaomi's intelligent driving ability, claiming to be among the first echelon of the industry in 2024.
5. "People-centered" intelligent cockpit
Lei Jun believes that the intelligent cockpit is the bank, this part is the last link of the whole ecology of people, cars and homes, based on Xiaomi surging OS, Xiaomi has built a unified visual interaction system, and at the same time opened up the underlying data and ecological sharing of Xiaomi mobile phones, Xiaomi pads, Xiaomi smart homes, and smart cars.
"Human-centered" intelligent cockpit interaction architecture.
Judging from the hardware configuration of the intelligent cockpit of the SU7, a piece of 16 is adopted1-inch 3K ultra-clear central control screen, 56-inch large HUD head-up display and 71-inch flip instrument screen.
The Xiaomi Surging OS uses a multi-tasking flexible frame that allows desktop apps to be dragged and resized at will, and automatically adapts to a variety of devices.
Voice interaction has a five-seat five-tone interaction function, supports stable and collaborative wake-up of multiple devices, almost all operations can be completed through Xiaoai's voice control, and the core functions support offline use.
At the same time, the starting speed of the car machine is 1In 49 seconds, the cockpit system can realize the streaming OTA upgrade technology, which realizes the upgrade while the first is realized. Its ecological sharing, including pad APP sharing, mobile APP sharing, and ecological hardware sharing.
The mobile phone application can be directly projected to the car desktop for use, the mobile phone ** meeting can share the outside camera, and the in-car reading light can call the light sensor of the mobile phone, etc., which can actually be done on models such as Polestar and Zeekr.
Control the car as you would in a smart home.
Lei Jun said that in the Mi Home app, the car is presented in the form of a room, and through the quick control card in the fusion control center, you can control the car with one click. At the same time, Xiaomi pad can also be hooked up to the car, becoming the second and third ecological expansion screens, realizing the linkage interaction of five screens.
Based on the underlying logic of the Internet of Everything, Mijia devices can also get on the car without feeling.
At present, the Xiaomi smart cockpit has supported 1000+ Mi home devices, automatic discovery, password-free access, and can set up automation scenarios. Xiaomi has also opened up unified standardized interfaces and rich standard protocols to create a Cariot ecosystem.
The built-in Cariot docking station supports a wide range of devices, including smart fragrances.
Four sets of pins are designed to provide power supply and expand the physical buttons.
In addition, in order to meet the needs of Apple users, Xiaomi fully supports wireless CarPlay and provides iPad-exclusive accessories and exclusive apps on the rear expansion screen.
The sum of the above five areas of technology is the first mass-produced smart sedan SU7 of Xiaomi Auto.
SU7 allowed Lei Jun to complete the "people, cars, and family ecology".
The core parameters about this car are as follows:
Xiaomi Su7 is a low-lying sports car posture and a C-class car that takes into account a variety of travel scenarios, with a body size of 4997mm x 1963mm x 1440mm, a wheelbase of 3000mm, a front vertical seat space of 1012mm, a rear knee clearance of 105mm, a trunk volume of 517L, and a trunk volume of 105L.
The Xiaomi Su7 has two versions, with a range of 668km and 800km in CLTC mode, and the MAX version uses 800V super fast charging, which can reach 220km in 5 minutes.
The Xiaomi SU7 MAX version adopts dual-motor all-wheel drive, with a peak torque of 838N·m, a total power of 495kW, a top speed of 265km h, and an acceleration of only 10 from 0 to 200 km hIn 67 seconds, the acceleration from zero to 100 is as fast as 278 seconds.
At the same time, the Xiaomi Su7 customization includes ten adjustments such as acceleration characteristics, steering feel, front and rear drive distribution ratio, etc., equipped with Boost mode, which lasts for 20 seconds of excess torque output, and supports catapult start.
The Xiaomi SU7 adopts a front double wishbone rear five-link independent suspension, equipped with a Xiaomi Blast intelligent chassis, equipped with CDC damping variable shock absorbers, Bosch ESP100 body stability system, Bosch DPB brake controller, Brembo four-piston fixed calipers and many other super configurations, turning radius 57 meters, 100 zero braking distance 333 meters.
The numbers are impressive.
Of course, the biggest controversy of this car is its design, because there are too many reference factors, and there are not a few people who ridicule it as the most tribute to Porsche.
But two of its designers are the most outstanding Chinese designers, it is the world's first Chinese designer of BMW, Li Tianyuan, the former senior exterior designer of Mercedes-Benz German headquarters Qiu Zhen and the former BMW senior interior designer Shin, to achieve the "world's lowest wind resistance of mass production cars" - 0195cd。
The visual proportion design of the whole vehicle, 3 times the wheel axle ratio, 2 times the wheel height ratio, 1At 36 times the width and height, it shows the proportions of a classic car.
From the scene to the scene, it is definitely an eye-catching model, but the xiaomi pinyin lettering on the tail is a bit redundant and narcissistic.
Among them, the three body colors of Gulf Blue, Ya Gray, and Olive Green are all colors comparable to those of million-level sports cars.
Given the large number of articles commenting on its design, I will not repeat it here.
In three years, Lei Jun presented such a model and put on a full-stack self-research posture, which not only invested 10 times the amount of money it claimed, but also had huge personal energy and learning time that was difficult for ordinary people to understand.
For Xiaomi, the emergence of SU7 allowed Lei Jun to finally open up the "whole ecology of people, cars and homes" for Xiaomi.
At present, in this market, it is the only one that has opened up this modelOf the four companies, in addition to Xiaomi, the strongest balance is Huawei, followed by Geely, which acquired Meizu, and the last one is NIO, which is self-developed with a lonely gamble full-stack.
The other half of Xiaomi's car-making answer is pricing
Lei Jun for su7 a hit, painstakingly, into 12 months around Xiaomi car, there have been a number of claims caused by the leakage of Xiaomi car information, the latest claim amount was as high as 3 million, and the night before this press conference, Lei Jun in Beijing, Guangzhou, Shanghai launched a round of tribute to the pioneer of electric vehicles, and quickly caused controversy on the Internet, netizens hotly discussed why it did not pay tribute to Geely, GAC and other traditional car companies.
Among them, on the one hand, there are many rubbing traffic with Wei Xiaoli and Huawei, and on the other hand, relying on the scheming of the hot search on the controversy, Xiaomi does not lose to Huawei in terms of competing for eyeballs.
However, SU7 made its first appearance, but did not announce a pre-sale price, which made the audience who listened to its nearly three-hour explanation quite empty, and Lei Jun admitted that it would take several months to wait.
So why not hold this event in a few months?
It's all because there are too many competitors in the Chinese market.
The day before, the price of the same level of ZEEKR 007 was announced, 200,000-29990,000 yuan;The pre-sale price of the Galaxy E8, which is also Geely, is 1880,000 yuan, and the price of the old rival Huawei's Zhijie S7 is 24980,000-34980,000 yuan.
SU7 looks around, up and down, left and right are all opponents, and they are all taking the ultimate cost-effective route, with high configuration and low price (related report: "Xiaomi car did not exceed expectations").
Lei Jun said that "only a 101-degree battery module" is impossible 990,000 yuan, 14The selling price of 990,000 is also impossible.
Judging from Lei Jun's statement, it is impossible for Xiaomi to have too high bargaining power in terms of battery at present, and its ** will be highly benchmarked against the Zhijie S7.
But it has to be said that this section has long been bloody.
As the only Internet tycoon who has bowed into the game, Lei Jun has some intentional or unintentional self-touch, but the slogan he shouted at this time to subvert the traditional automobile industry has been shouted many times by younger generations than him, and it is difficult for today's consumers to be moved.
But the fans of Xiaomi mobile phones are obviously not the main consumer groups of Xiaomi cars, from performance configuration to pricing strategy, Lei Jun is interested in benchmarking domestic first-line smart car brands, whether it is Xiaomi mobile phones or not cars are seeking a higher-end positioning.
At present, Lei Jun has only paid half of the answer sheet of Xiaomi Automobile, and the other half is pricing.
It is difficult for Lei Jun, but only by overcoming all difficulties can he gain a foothold in this market. If he wants to become one of the top five cars in the world, such an ambitious goal is more conservative and modest than his junior Li Xiang shouting about becoming the world's No. 1 in 2030.
Humility makes people progress.