The five car companies showed off 8 black technologies, and the foreign brands were instantly not fragrant
⻋东⻄（公众号：chedongxi）
作者 | Janson
Edit | Juice
In the new energy vehicle market, domestic car companies are "overtaking in technology".
At the last rim show at the end of the year——— Guangzhou Auto Show, this trend is constantly strengthening, and all kinds of black technologies are overwhelming: remove the brake pads and brake, remove the steering column and still steer, make up for 400 kilometers in 10 minutes, and have a cinema-like experience while sitting in the car...
For a long time before, domestic car companies have been following behind joint venture car companies, and have been in a relatively passive position in core technology.
With the beginning of the new energy transformation, domestic new energy brands continue to make efforts in technical reserves and continue to bring new products to the market.
From the breakthrough electric drive electronic control technology to the birth of the domestic supercar platform, from the continuous innovation of cockpit technology to the integrated solution of the Hongmeng cockpit, these have demonstrated the leap of domestic strength.
However, the joint venture brand that was once at the forefront of technology was slowly thrown away, and was even considered a symbol of backwardness, which also had the picture of GAC Toyota executives shouting at the booth that "joint venture does not mean backwardness".
▲ Auto show scene
From this comparison, it can also be seen that the mainstream position of domestic technology in the field of new energy vehicles, whether it is the objective technical status quo or the subjective acceptance of consumers, domestic technology has emerged.
At this Guangzhou Auto Show, the editor of Chedong also visited 14 exhibition halls and deeply excavated 8 "black technologies" of domestic car companies, showing the technological breakthroughs of domestic car companies from multiple angles.
1. Look up without brake braking and steering without steering column
Traditionally, it has been common practice for cars to be equipped with brake discs and steering columns, but at this year's show, Yangwang showcased a brake-less braking and column-less steering technology. The exhibition of two "black technologies" caused the Yi Sifang concept car to cause discussion.
Brakeless braking: Through the design of four wheels and four motors, the system can generate electromagnetic resistance torque by controlling the motor to reverse drag, so that it can effectively brake without brake calipers. To put it simply, this is a "strong kinetic energy recovery" mechanism, and when four motors work at the same time, it can produce a maximum braking deceleration of 1.0G.
▲ Yi Sifang concept car
It is reported that this technology of Yi Sifang can already be comparable to the braking performance of brake discs. For example, if a vehicle brakes from 60 km/h, it can be completed in as little as 20 meters. In order to achieve the best braking effect, the vehicle collects data such as the stroke of the brake pedal and the maximum friction force of each wheel, and distributes the torque of each wheel in real time through complex calculations. The birth of this technology provides a new solution for new energy vehicles to achieve efficient braking during driving.
At the same time, the steering column-less steering technology is also one of the "black technologies" of the Yi Sifang platform, when the vehicle receives the turn signal, the system will apply the corresponding torque to the left and right front wheels, so that the steering tie rod deflects and drives the wheel steering. At the same time, the rear wheels are also steered accordingly to ensure that the vehicle is more stable when cornering or making a U-turn.
It is reported that the system first collects the angle of rotation of the steering wheel, and then calculates the torque that needs to be distributed to each wheel based on the collected data. As soon as the vehicle starts moving and the wheels turn, the system uses the reaction force of the ground to the wheels to deflect the steering tie rods, enabling steering without the need for a steering column. According to BYD, the launch of this technology is not intended to replace the steering column, but to bring safety redundancy to users.
2. CATL 5C Kirin battery has a battery life of 400+ in 10 minutes
Previously, the fastest charging battery in CATL was the 4C Kirin battery, and the 5C Kirin battery that was first launched by the ideal MEGA at this auto show is also full of "black technology", which has the characteristics of high energy density and fast charging, bringing longer mileage and faster charging speed to electric vehicles.
According to the introduction of 5C battery by Li Auto, the battery has excellent charging performance on the 800V platform. It has a peak charging power of more than 500kW, a peak current of 700A, and a peak voltage of up to 1000V.
This means that after 9 minutes and 30 seconds of charging, the battery range can be increased by 400 km, and after 12 minutes of charging, the range can be increased by 500 km. Such charging performance undoubtedly brings users a more convenient travel experience.
In addition, the battery has an energy density of up to 170 Wh/kg, and based on a charge of 104 kilowatt-hours (kWh), the range has the potential to exceed the 700 km mark.
▲5C Kirin battery
Liu Zhimin, general manager of Li Auto's power system, revealed in an interview that as early as 2018, Li had launched the research and development project of super rechargeable batteries, and the two sides jointly invested in the research and development team of more than 1,000 people.
It is worth mentioning that this 5C battery is not only used in the MEGA priced at 500,000 yuan, but will also be further expanded to a more affordable price range, bringing consumers a more cost-effective choice of electric vehicles.
3. BYD supercar platform The horsepower of the whole vehicle exceeds 1,000 horses
With the help of the supercar platform, the U9 can achieve a vehicle horsepower of more than 1,300 horsepower, an instantaneous maximum lateral acceleration of 1.7g, and a steering linear zone of 0.72g.
In terms of stability, the acceleration pitch gradient is reduced by 33%, the braking pitch gradient is reduced by 20%, and the steady-state roll gradient is reduced by 17%. In addition, the height of the center of mass can be reduced to 393 mm, and the ground clearance of the vehicle can be increased to a maximum of 145 mm.
▲Looking up at U9
In terms of aerodynamic innovation, the Yangwang supercar platform adopts a space shuttle-shaped body layout and a space-time tunnel air duct design, and is equipped with 12 groups of active and passive aerodynamic packages to achieve low wind resistance and high downforce, adapting to various driving scenarios.
In terms of safety innovation, the platform integrates three innovative technologies to create a super body, including a super carbon cabin, a new generation of CTB and a superhybrid structure. The official claim is that the torsional rigidity of the body exceeds 54425N·m/°, reaching the world's leading level, and the lightweight coefficient of the vehicle reaches 0.95.
Fourth, Huawei's new light field screen new solution for in-vehicle display
Huawei's light field screen technology is full of science fiction as soon as it is released, and it can be said to be a veritable "black technology" for on-board display by expanding the real space in the car through the square flat. The technology route of the vehicle light field screen is unique, which is similar to the technology of some VR/AR glasses.
With the help of a unique spatial optical engine design, it uses the principle of light field folding, and expands the viewing distance through multiple refractions of light, so as to achieve the effect of presenting a 40-inch format at a distance of 3 meters from the human eye. To put it simply, the light field screen is to refract a small piece of screen through multiple light refractions, and eliminate distortion and other effects through algorithms, so as to present the enlarged screen in front of our eyes.
▲Huawei light field screen (the actual frame size is about 40 inches)
The breakthrough of the light field screen is that it can achieve a visual distance image of more than 3 meters, and the screen size can reach 40 inches. Such a viewing distance and screen size almost surpass the performance of most existing car screens. This not only allows users to view the car screen at a long distance, effectively reducing eye fatigue, but also reduces the risk of myopia in teenagers.
It is worth mentioning that the light field screen can also effectively alleviate motion sickness. According to the test and verification of authoritative institutions, subjective experience and objective EEG test show that the motion sickness coefficient can be reduced by 35% compared with LCD screens, and 90% compared with VR glasses. This undoubtedly leads to a more comfortable and safer driving experience for the driver.
5. Journey 6 autonomous driving chip 560TOPS computing power to help intelligent driving
We all know that at present, Nvidia Orin X can be said to be the leading existence in the field of intelligent driving computing power, and its computing power can reach 254TOPS, but at the Guangzhou Auto Show in 2023, Horizon announced that its Journey 6 series will be officially released in April 2024, and the flagship version has 560 TOPS, which is more than twice that of Orin X.
According to reports, the Journey 6 series adopts a unified BPU Nash computing architecture, becoming the industry's first on-board intelligent computing solution covering the needs of full-level intelligent driving from low to high.
Among them, the Journey 6 flagship version is designed for the new generation of high-end intelligent driving in urban areas, and the computing power of up to 560 TOPS can support advanced models such as BEV and Transformer with an industry-leading level.
▲Journey 6 chip
Officially, the Journey 6 flagship version has six product advantages, including high integration, high computing power, high efficiency, high processing capacity, high access capacity and high security.
It is worth mentioning that the Journey 6 flagship version realizes the "four-core integration" of CPU, BPU, GPU, and MCU, which improves the cost performance of the system and reduces the difficulty of deployment through high integration.
At the same time, the Journey 6 chip can be connected to up to 24 cameras, lidars and other types of sensors to achieve full-scene NOA.
In addition, the BPU Nash architecture carried by the Journey 6 flagship version is specially designed for large-parameter Transformers, winning the best computing efficiency for high-end intelligent driving cutting-edge algorithms. A single Journey 6 flagship chip can support full-stack computing tasks such as perception, planning and decision-making, control, and cockpit perception, with powerful performance.
During the Guangzhou Auto Show, Horizon also announced a number of Journey 6 mass production partners, including BYD, Guangzhou Automobile Group, Volkswagen Group's software company CARIAD, Bosch, etc.
Six
Extreme Krypton
Integrated smart light curtain and giant screen light strip help travel safety
ZEEKR integrated smart light curtain was released with ZEEKR 007. It debuted the largest ZEEKR STARGATE all-in-one smart light curtain, equipped with a 90-inch giant screen light strip, presenting a 310° ultra-wide light curtain visibility range to improve travel safety.
▲极氪007
It is worth mentioning that the ZEEKR integrated smart light curtain contains 1711 high-power LED lamp beads, with a single lamp bead area of only 1cm, equipped with 16 levels of adjustable grayscale, and a high light curtain refresh rate of 30 frames per second. Such a high level of integration and display effect can be regarded as the general existence of "black technology" in the interaction of domestic light screens.
▲极氪ZEEKR STARGATE
It is reported that the ZEEKR integrated smart light curtain has a brightness of 10,000 nits, and the content is still clearly visible in strong light environments. In addition to lighting, the light curtain also supports multiple scene interactions, such as the first customizable front face pattern, light language and other functions. In addition, there are also scene lights such as greeting, getting on the bus, and replenishing energy to create an exclusive personality label that can be customized.
7. GAC Passenger Car Ammonia Engine The world's first liquid ammonia engine
GAC Group's unveiled world's first ammonia engine technology for passenger cars, as the proud work of GAC Research Institute, its use of liquid ammonia itself can be regarded as a "black technology". GAC's ammonia engine uses liquid ammonia as fuel, and the phase change process of ammonia fuel supply is precisely controlled to ensure the smooth operation of the engine.
At the same time, the ultra-high-energy ignition technology is used to achieve reliable ignition of ammonia fuel in the cylinder. According to professionals, the ammonia engine has an overall power of up to 120kW and a 90% reduction in carbon emissions, which is more than the common fuel engines on the market.
▲GAC Passenger Vehicle's ammonia engine
With the advancement of the "dual carbon" strategy, traditional automotive technology can no longer meet the requirements of energy conservation and emission reduction, and the development cycle and iteration cycle are constantly shortening, which poses new challenges to the hardware development of automobile manufacturing enterprises. The ammonia engine launched by GAC Group this time not only represents the birth of a new technology, but also provides a new solution for the industry to solve the pain points of traditional development.
However, despite the ease of transportation of ammonia energy, it still faces certain difficulties in the domestic commercialization process. The high cost of construction of ammonia storage stations, coupled with the need for improved storage technology, makes the application and commercialization of ammonia in China more complex than that of gas stations and charging stations. However, the GAC Group has pioneered this field, opening up new possibilities for the innovation of future automotive power technology.
GAC Group exhibited the world's first ammonia engine for passenger cars, which achieved low carbon emissions and high efficiency, injecting new vitality into the new energy vehicle market.
8. The flying car was unveiled at GAC GOVE
Xiao-hsien
Huitian Qi debuted
When it comes to the most important "black technology" in the automotive field, flying cars are definitely one of the key points. Both GAC and Xpeng have launched their own flying car products, showing their vision for the future of mobility.
GAC Group's flying car GOVE adopts an innovative separable body configuration, and the flight cabin and chassis can be freely separated or combined according to needs. When driving on land, GOVE is equipped with the ADiGO PILOT autonomous driving system, which works with the chassis to realize the functions of the car, thereby improving passenger efficiency.
At present, the autonomous driving system has reached the L2 level, which is both practical and safe. In the air, the GOVE flight capsule is made of 90% lightweight composite materials, and is equipped with a three-redundancy flight control system and multi-eye recognition technology, and is equipped with a three-electric system that meets the standards of the civil aviation field.
▲GOVE flying car
GAC GOVE also has many highlights in terms of performance configuration. In terms of flight safety, we adopt the MBSE system engineering concept widely recognized in the aviation field to build a flying car R&D system based on model system engineering to ensure reliable quality from R&D to mass production.
In terms of power, the redundant design of the dual-backup multi-rotor power system enables the flight cabin to fly normally and land safely when part of the power system fails. The unique shape of the small drone makes the flight capsule more compact, and to a certain extent, it gets rid of the frame of the traditional passenger aircraft and better interprets the concept of flying cars. According to Wu Jian, president of GAC Research Institute, the GOVE flying car is expected to achieve a range of 200 kilometers, covering the travel needs of the Greater Bay Area.
At the same time, Xpeng Huitian's land-air integrated flying car has also attracted widespread attention. This flying car full of technology and futurism, with its supercar design, arms and rotor features, meets all the imagination and expectations of the public for flying cars.
This flying car has a unique design style, and the intelligent cockpit is very technological, and can freely switch between land and flight driving modes. In land mode, it can travel hundreds of kilometers on the normal road surface like an ordinary car, and through the folding and deformation system, open the arm, switch to the flight mode, take off and land vertically in accordance with regulations and environmental conditions, and can fly dozens of kilometers continuously, crossing congestion, obstacles and rivers, to meet people's short-distance low-altitude travel needs.
▲Xpeng Huitian all-in-one flying car
It is reported that this product is planned to participate in the North American CES exhibition in January next year.
It is worth mentioning that Xiaopeng Huitian has also independently developed a multi-umbrella life-saving system for the whole machine. In October this year, the system successfully completed a 50-meter ultra-low-altitude parachute opening test on the Voyager X2, breaking the industry's record for an opening height of more than 200 meters. Previously, only the Cirrus SR22, known as the "BMW of the sky", was equipped with a complete parachute.
Conclusion: The accumulation of domestic technology has been continuously strengthened
The 8 major black technologies at the 2023 Guangzhou Auto Show showcased the innovative achievements in the field of new energy vehicles in mainland China from different technical perspectives. On the road of new energy, domestic auto brands are constantly improving their competitiveness and bringing new changes to the global auto market.
At the same time, domestic auto brands have demonstrated strong technical strength and innovative spirit, and these "black technologies" have not only brought richer choices to consumers, but also witnessed the vigorous development of the new energy vehicle industry in mainland China. With the continuous investment of major automobile brands in technology research and development, we have reason to believe that domestic automobile brands will definitely show greater technical strength in the competition in the global automobile market in the future.