We often say, "The ideal is very plump, and the reality is very skinny".
Although the current intelligent process of domestic automobiles has a tendency to transform from assisted driving to automatic driving, there are many "on paper". You know, in the actual application scenario, it's hard to say whether the intelligent configuration is good or not.
Recently, there has been a group of tests of BYD's intelligent driving technology on the Internet**, mainly testing BYD's AEB system, judging from the test results, under the empowerment of hard-core technology, BYD broke the AEB record with absolute strength.
130km h high-efficiency braking, setting a new industry record
First, let's take a closer look at what exactly an AEB is
At present, there are many types of intelligent driving assistance functions in automobiles, but they can be roughly divided into two categories. One is adaptive cruise, which is more to reduce the burden on the driver. The other type is AEB, which is more of a product of driving safety services.
As an active safety assistance function, the AEB automatic emergency braking system includes two major functions: collision warning and automatic emergency braking. The system is based on on-board camera + radar to identify and detect vehicles, pedestrians, and obstacles in front, and will warn drivers when there is a potential risk when the distance is too close.
In the actual life scene, the situation faced by the car is "varied". Especially in some emergencies, people's reaction speed is limited after all, when it is too late to brake the operation, or the braking force is too small, the intelligent system judges the automatic emergency braking, which will effectively avoid the possibility of scratching and even colliding with the car in front.
Of course, due to hardware and technical differences, there are also great differences in the detection ability, reaction speed and braking efficiency of the AEB function in the face of emergencies.
According to the ** leaked on the Internet, the BYD AEB test is divided into three scenarios.
First of all, in the high-speed environment, the U8 equipped with the AEB system is driving at a speed of 130 km/h, and when the vehicle in front is abnormally stationary, it can successfully recognize the vehicle in front and brake it. We know that at high speeds, a car often needs more time and longer distance to fully brake, which requires the vehicle to have a long and effective detection and perception ability to reserve sufficient safe braking distance.
In addition, in this test**, looking up U8 is also driving at a speed of 110km h, due to the front car blocking the field of vision can not identify the abnormality, when the front car is in emergency avoidance of obstacles, the distance left for looking up U8 braking is not much, but looking up U8 still achieves short-distance rapid braking, which means that BYD AEB system has extremely fast response and strong braking ability.
In the night test scenario, the Yangwang U8 also drove at a speed of 110 km h, and although the light was dim and easy to interfere with the detection of the perception hardware, the vehicle still drove normally and achieved short-distance braking.
Although these three scenarios are relatively extreme, they are not uncommon at high speeds, so an effective AEB system is still necessary for people who like to go out and play and often run at high speeds.
It can be seen that the BYD AEB system has fast and accurate long-distance perception and high-efficiency braking ability after identifying obstacles, which fully reflects the stability of the system, especially at 130km h braking and braking successfully refreshed the industry record.
AEB integrates vehicle control technology to achieve perception redundancy
In fact, the AEB system equipped with a considerable number of models on the market is only developed for speeds of 60 km h, and it is not uncommon for AEB systems to brake at 80 km hHowever, it is worth mentioning that a car's AEB system can still work at speeds of 100 km h or even 130 km h.
One might think that consumers living in cities don't need such high-precision AEB systems. However, in fact, the perceived redundancy of this system can be used in medium and high-speed scenarios.
According to the calculation data of the National Intelligent Connected Vehicle Innovation Center, by 2025, the new output value of China's intelligent networked vehicles will exceed 1 trillion, and this figure will reach 2 in 20308 trillion. Today's Chinese market has fully entered the critical stage of automotive intelligence, and high-end intelligent driving technology is developing rapidly. The development of smart cars is not just a short-term liberation of the driver's energy, but ultimately leads to full autonomous driving
It may be a bit difficult to achieve this goal in the short term, but the redundant perception means that BYD's AEB system has the ability to evolve for the future. On the one hand, it can bring a higher safety ceiling to the product, and on the other hand, the on-board technology can accelerate the update and iteration, which can make BYD's products stay ahead of the curve at the level of intelligent driving and never go out of style.
It is worth mentioning that if you want to achieve short-distance emergency braking at a high speed of 130kmh, you also need strong vehicle control ability to ensure that the car will not "skid" and "drift" in the process, causing indirect damage to the driver and the vehicle.
Here we have to mention BYD's other two core technologies - Yi Sifang, which has four vehicle-level redundancy capabilities: drive redundancy, power supply redundancy, brake redundancy and steering redundancyand the cloud chariot technology, which can realize the integration of horizontal, vertical and vertical vehicle control, can provide strong lateral stability, anti-roll ability and can greatly shorten the braking distance.
Although it is an era of "software-defined vehicles", it is really necessary to do a good job in a smart car and deeply explore the vehicle control technology to improve the "hard power", so as to provide a solid foundation for the "soft power" of intelligent driving technology, which is also a strong evidence that BYD is firmly in the first echelon in the field of intelligent driving.
Innovation + high investment, an average of 15 patents per day
The change of the times has created equal opportunities for each brand, but why can BYD eat the most "** transformation dividend"?
Perhaps you are no stranger to Edison's sentence "genius is 1% inspiration and 99% sweat", and to survive and develop in the fiercely competitive Chinese market, you need the innovative inspiration of "genius", and you also need to pour sweat and hard work.
Take this AEB system test as an example, BYD can achieve better perception redundancy than other brands of intelligent driving technology, mainly because BYD has innovatively proposed to integrate cameras, radars and other intelligent driving sensing data with vehicle-level real-time data, so as to realize the fusion and superposition of physical direct sensing of the vehicle and indirect sensing of software algorithms.
The vehicle control instructions are uniformly output by the first-class computing platform, and more accurate instructions are issued according to the advantages of each domain controller, and the parameters such as torque and angle are scientifically adjusted to achieve early identification, correction and accurate control as soon as possible.
Previously, BYD's high-end intelligent driving assistance system, "Eye of the Gods", was born based on this benchmark, relying on advanced electronic and electrical architecture and full-stack self-research capabilities. In the winter test of Chedi Know, the Denza N7 and Yangwang U8 have successfully proved the advancement of BYD's intelligent driving technology and the stability of actual offline performance.
In addition to maintaining a sense of innovation, BYD also pays great attention to the accumulation of technology.
As one of the earliest car companies to develop intelligent driving, BYD has maintained a high and increasing R&D investment, of which the R&D investment in the first three quarters of 2023 has exceeded 186 in the whole year of 20225.4 billion, reaching 2493.8 billion. In terms of R&D strength, BYD currently has more than 90,000 automotive engineers, an average of 15 patents per day, and a world-leading R&D team.
Based on the opportunities created in the era of automobile electrification, BYD, which started with batteries and has focused on research and development of new energy vehicles for many years, is now able to see the moon and the clouds.
Write at the end:
BYD has always pursued "safety is the greatest luxury of electric vehicles", and consumers should not be allowed to bear the safety risks caused by immature technology. At the same time, as the last line of defense to avoid driving risks, the maturity and stability of BYD's AEB system have been fully verified in the practical operation process.
Through AEB, today's BYD is doing a good job of using the intelligent driving system that users dare to use, and solving the consumption pain points of users at a leading level in the industry.