Cars with hardcore technology are obviously more attractive.
The automotive industry is experiencing the acceleration of two revolutions: one is the intelligent revolution, under the general trend of "omnipresent intelligence", the automotive industry is running into the era of wisdom; the other is the energy revolution, transportation carbon emissions account for 20% of the total global carbon emissions, "carbon neutral" target framework, transportation electrification is also accelerating. "Smart" + "electric" has become the standard of cutting-edge automotive products, attracting mainstream automakers around the world to enter the game.
At present, in China, a hundred schools of intelligent electric power are competing for a hundred flowers: pure electricity, hybrid, range increase, and there are many masters. But the voting machine is in the hands of the user, how to have the "face" of the Million Luxury Car, and the "Lizi" of intelligent cutting-edge technology, and can also achieve seamless switching of different application scenarios?
On December 23, 2021, aito Q&I M5, a smart electric vehicle launched by Huawei-empowered Xilis, was launched. At the press conference, Yu Chengdong, managing director of Huawei and CEO of Consumer BG, mentioned "crushing fuel vehicles" three times and described the car as having a "Million Luxury car-level experience" nine times.
Where does Huawei's confidence come from?
In the second issue of the large-scale interview program "Fangbo Carbon Discussion Room" created by Huawei Digital Energy Technology Co., Ltd. (hereinafter referred to as "Huawei Digital Energy"), Huawei Digital Energy Vice President and Chief Marketing Official Liang Zhou invited Xu Lin, CTO of Xiaokang Group, President of Xilis (Rotating) and Wang Chao, President of Huawei Digital Energy Intelligent Electric Field, to jointly decipher the black technology and behind-the-scenes stories behind the powerful functions of AITO Q&I M5.
Super power and long battery life
In the automotive field, super power and ultra-long endurance, just like the explosive power of 100-meter sprints and the durability of marathon long-distance running, are often "fish and bear paws can not be combined". In the field of electric vehicles, one of the outstanding items is not easy. On the AITO Q&A M5, it has achieved both.
As one of the earliest test drivers, Dr. Fang Liangzhou did not hide his good feelings about the acceleration performance of the "AITO Q&A M5" as soon as he opened the scene: "The sense of pushing back is very strong."
The "push back feeling" in Dr. Fang Liangzhou's mouth comes from the DriveONE pure electric drive range extender platform front drive AC asynchronous 165kW motor. Together with the 150kW rear-drive permanent magnet synchronous motor, it constitutes the AITO Q&I M5 four-wheel drive motor arrangement, and the "front and back" is considered to be the "king explosion combination" in the field of intelligent electric drive.
Data from Huawei shows that under the blessing of driveONE pure electric drive range extender platform, AITO Q&I M5 accelerates by 4.4 seconds from 100 kilometers; 0-50 kilometers performs better, only 1.9 seconds. In fact, the DriveONE pure electric drive range platform can also achieve better acceleration per 100 kilometers, only 3.5 seconds, which is comparable to the million-level luxury cars seen on the market today.
There are two factors that limit the power of the vehicle: one is the speed of the motor, the other is the heat dissipation ability, and the key to both lies in the motor. The M5 adopts the industry's highest speed motor, and the continuous output power speed reaches 18000rpm. In terms of heat dissipation, the intelligent oil cooling heat dissipation scheme is adopted, compared with the traditional indirect exchange of water cooling, intelligent oil cooling is accurate and deep into the local heat source to directly exchange and take away heat.
The durability of the AITO M5 is also due to the DriveONE pure electric drive range extender platform, which solves the long-term pain point of electric vehicles - endurance anxiety.
"DriveONE system, we will increase the efficiency to 88.6%, while the range extender oil efficiency has also been improved, one liter of oil can be converted into 3.2 kWh of electricity (equivalent to 18 km under NEDC conditions), coupled with the addition of the battery pack, it has reached an endurance of 1100 km." Wang Chao further explained.
In addition, the AITO M5 also uses waste heat recovery to further enhance the vehicle's endurance while saving energy consumption.
Library-grade tranquility
"Moving like a rabbit, quiet as a virgin". Million-dollar luxury cars must not only have extreme acceleration performance, but also have a quiet experience like a library.
At present, the noise in the mainstream luxury cars in the industry is generally controlled at about 60dB. AiTO Q&I M5 at idle speed, the noise in the car can be as low as 38dB (20-40 decibels is equivalent to whispering); at 80km/h, the noise in the car is only 56.9 dB, which is equivalent to the sound of people's normal communication.
From the perspective of the whole vehicle, there are three sources of noise: wind resistance, rolling resistance and interior parts. Noise reduction is a system engineering that requires the optimization of the driveline, hardware and software. Compared with fuel vehicles, electric vehicles have higher requirements for NVH indicators, which has always been a problem in the industry, and Huawei's DriveONE pure electric drive range extender platform gives the answer.
According to Wang Chao, in terms of vehicle electric drive noise adjustment, driveONE pure electric drive extended range platform for 0-20, 20-50, 50-70, 70-90 different time speed band sound pressure level speed regulation, through logic algorithm to achieve the noise control of the entire drive system.
Galvanic corrosion is also one of the main sources of noise, and the longer it is used, the louder the galvanic corrosion noise. In this regard, Huawei also gave a solution, through the galvanic corrosion treatment plus precision control algorithm, corrosion noise has been significantly improved.
The details are devilish. During the gravel road, the noise of small gravel stirred up by tires hitting the chassis of the car is annoying. On the AITO M5 chassis, more than 80% of the car body is sprayed with an LSAD liquid acoustic damping material, similar to a special material of sound-deadening cotton, which can effectively shield external noise. In addition, more than 500,000 luxury cars, in order to reduce the body noise in motion, the front and rear windshields usually use double-layer laminated glass, which is also used on the M5.
AI-enabled vehicle safety
On The Maslow Pyramid of Needs, security is the underlying underlying requirement. Coupled with the fact that the "safety" category of smart cars far exceeds that of traditional cars, users' needs for safety are also more urgent.
In terms of functional safety, AITO Q&I M5 has deployed more than 100 intelligent cloud monitoring, far exceeding the 19 standards of the national standard, and is perfectly compatible with European standards and American standards. Among them, the most concerned battery pack is designed through the CTP module, and each cell adopts independent fireproof packaging technology, which truly pushes the safety of the battery to the extreme.
The contribution of AI technology in functional safety is not inferior: Huawei's AITO AI self-learning ability can automatically optimize the model in massive data training, improve the accuracy and prediction effect of the model, realize 24-hour early warning of thermal runaway, check the full > 90%, and suppress false positives
With the rapid development of intelligent technology, new energy vehicles have ushered in an "inflection point" - from smart cars to smart cars. For China's auto industry, now is the perfect opportunity to "overtake in curves".
For users, super performance, battery life, charging and the excellent experience of the Million Luxury Car, taking into account the "Lizi", "face" and cost performance, is the constant pursuit of the car. For car companies, who can firmly grasp the two hard-core technologies of hardware drive system and software operating system, who can win the opportunity and invincible position in the future track.
The release of aito Q&A M5 has triggered the industry's expectations for Huawei's open thinking of "helping car companies build good cars" and empowering the industry to play. DriveONE pure electric drive range extender platform can be oilable energy solutions, both dynamics and endurance, both high power and low noise, as well as the platform itself represents the cutting-edge hardware drive system and Huawei HarmonyOS intelligent terminal operating system in the field of vehicle integration, but also for the future of the new definition of smart cars to add more imagination space.
This article is from the WeChat public account "36Kr" (ID: wow36kr), 36Kr is published with permission.