Self-research is the foundation of technology. Experience BYD’s intelligent technology.

　　The evolution of cars is so fast. A few years ago, many cars were still chasing the thermal efficiency and power increase of engines, the fast, smooth and efficient shifting of gearboxes, and the "advanced feeling" of chassis when driving. At that time, new energy vehicles were still a vague concept of "megatrends". Nowadays, new energy vehicles have really entered our lives. With the acceleration and deepening of the electrification process, we also see that at the moment when electrification has gradually matured, a broader main line has been clearly visible: under the natural advantages of electrical architecture, smarter cars are accelerating towards us, and cars have not only stayed at the level of a means of transportation, but have gradually evolved into the "third space" for people’s lives.

　　Being in the new energy head array, the technology is now taking the word "smart" as the re-investment of its "technical fish pond" and quickly implementing the results on new cars. At the 2024 "Dream Day" event with the theme of "Science and technology, pay tribute to dreams", BYD showed us the intelligent and phased practical achievements of BYD’s understanding, and also clearly showed its future strategic direction. On the 13th before the official start of the event, we went to BYD to experience it first. So what is the geometry of this "Smart Day" dry goods? This time we experience it together.

　　In the BYD Park in Pingshan, Shenzhen, BYD officially set up all the experience projects of "Intelligent Block", including four sections: vehicle intelligence, intelligent cockpit, intelligent parking and intelligent driving.

　　Vehicle intelligence

　　BYD put forward the concept of vehicle intelligence, and summarized the attributes of vehicle intelligence with "one brain, two ends, three networks and four chains". One of them is the central brain that participates in and dominates all perception, decision-making and execution; The two ends are the car AI and the cloud AI, and the two ends are deployed in real time; Three networks, namely satellite network, 5G network, car network and triple play; The four chains are the sensor chain, the control chain, the execution chain and the data chain. The four chains are deeply connected to realize flexible perception, precise control and coordinated execution, so that the whole vehicle can achieve functional breakthrough and experience improvement.

　　On-site, the intelligent panel of the whole vehicle is equipped with e-platform 3.0, cloud platform, Xuan Ji architecture and the platform of Yifangfang, and the dynamic experience of Yifangfang concept car is arranged in the dynamic square.

　　E-platform 3.0 is an old acquaintance of ours. It is BYD’s exclusive platform for pure electricity, which lasted for five years and cost tens of billions. It is compatible with various layout modes of front drive, rear drive and four-wheel drive, covering a variety of vehicle sizes from A-class to D-class. It is BYD’s latest pure electric platform. At present, the latest model of E-platform 3.0 is Sea Lion of the marine department.

　　E-platform 3.0 is the technology of vehicle architecture. Based on this platform, BYD has derived new electric drive technology, battery technology, battery management technology, intelligent technology and design language. Many technologies are highly integrated with E-platform 3.0 to jointly optimize and improve the safety, efficiency, intelligence and aesthetics. Take BYD’s most talked about application, the integrated technology of CTB battery body developed based on this platform makes BYD’s blade battery directly hidden in the chassis, and the performance and safety of the battery system are solved. The eight-in-one motor, which integrates the motor, reducer, motor controller, power distribution unit, DC-DC, OBC, VCU and BMS subsystems, focuses on performance and efficiency. It can be said that any component under the "parent" load of E platform is not a "dog".

　　Since its release in April, BYD’s full-stack self-developed Yunqi system has become the world’s first exclusive intelligent body control system for new energy, and it also marks that BYD has become the first enterprise to master the 3-way 6-degree-of-freedom body control technology, which can realize all-round perception through 50+ sensors, so that the vehicle can grasp the environmental changes in real time, and the platform of Yunqi system is simultaneously displayed on the spot.

　　Specifically, the cloud matrix includes cloud -C, cloud -A, cloud -P and other products, covering the core layout from comfort, control to safety and off-road. The three products are oriented to different models and have been gradually installed on BYD’s various models, such as looking up at U8 on the spot.

　　Looking up at U8, it is equipped with Yunnian -P, a chassis which integrates three core technologies of machinery, hydraulics and electronic control, and is specially prepared for off-road driving. One of its functions is to realize the long suspension adjustment stroke. In the ultra-high and ultra-low mode, the bottom will not be supported on off-road sections, and the center of gravity can be lower during fast driving. The leveling function was demonstrated on the spot. In the case of four wheels landing at different heights, the U8 car can still be kept absolutely level, providing a stable platform for the rest in the car.

　　The Xuanji architecture is a new integrated electronic and electrical architecture solution for vehicles launched by BYD. It is named after the two main stars of the Big Dipper, Tianxuan and Tianji, and will be integrated with the vehicle platform to jointly build the intelligent base of the vehicle. Technically, it has the characteristics of central computing, multi-level backup, soft and hard decoupling and service orientation, and has achieved breakthroughs in four dimensions: fast, simple, intelligent and stable. BYD said that it has applied for more than 200 related patents.

　　Xuanji architecture adopts cross-domain integration scheme, system data is communicated between cores, and the speed is greatly improved by optimizing interactive links. It achieves the highest hardware integration in the world: the whole vehicle integrates a total of 85 functional modules. The industry’s largest visual programming service interface and API standard interface, Tianxuan cross-domain computing platform SoC+ reconfiguration chip intelligent computing platform solution, can provide intelligent services for vehicles throughout their life cycle. Under the advanced technology, Xuanji architecture still has a very high security margin. The "341 Global Security" system includes triple redundancy of inter-domain, path and bus, four layers of native network security barriers and the world’s first holographic omni-directional sensing protection system-Yundun, which further enhances the safety of the whole vehicle.

　　The Yi Sifang concept car exhibited at the Guangzhou Auto Show in November also appeared on the scene. The four-motor independent drive architecture is added with "black technology" such as in-situ U-turn, agile steering, extreme anti-skid and emergency floating. Its biggest visible highlights are actually two: one is that there is no brake pad caliper, which does not rely on traditional braking mechanism to realize braking; the other is that there is no steering rod and wire-controlled mechanism, which does not rely on traditional steering mechanism to realize steering.

　　The scene is also decorated with snake-shaped piles, and the maximum passing speed of the Yi Sifang concept car can reach 60 kilometers per hour. As for braking, it can achieve the maximum braking force of 1.0g and the minimum braking distance of 20m. Watching a car with such a heavy wind in Cyberpunk walk freely in the venue, the visual effect and sense of technology are full.

　　Intelligent cockpit

　　Compared with the "engineering" rationality of the whole vehicle, the experience of the intelligent cockpit is much more emotional. In the intelligent block, BYD also designed the booth of full-scene digital key, full-scene intelligent voice, game car, outdoor camping karaoke and vehicle-mounted drone to comprehensively demonstrate its practice and exploration in the intelligent cockpit.

　　BYD’s smart entry includes Bluetooth key, NFC digital key and UWB digital key. What many people don’t know is that BYD is actually the first automobile brand in China to launch UWB digital key. At present, it has covered three brands, namely Apple, Samsung and vivo, and supports wearable devices. At the scene, BYD brought a brand-new palm key. This palm key can quickly and conveniently complete the information entry into a biological key by recording the palm vein data of the driver and passenger. It is used in the same way as the "palm payment" just launched by WeChat. You can quickly open and close the car lock with your palm facing the B-pillar.

　　BYD’s full-scene intelligent voice wake-up response time is short, only 300ms is needed, and the operational function station has 100% coverage of 1000+ core vehicle control functions. In our experience car, it also brings two new functions: one is the multi-car communication function, which establishes point-to-point vehicle contact through VIN in advance, and the two cars can send instant messages or information flow through voice; The second is the travel assistant function under the blessing of AI. As long as you tell the purpose of the trip, the system will automatically help you recommend all the trips, road conditions, hotels and accommodation that are accurate to the minute.

　　With the increasing computing power of on-board chips, it is nothing new to play racing games in the car. However, BYD has also upgraded the game experience in the car. Its game customization steering wheel adopts decoupling column, and the steering column is disconnected during the game. The tires do not follow the movement, and the vehicle will not run, which can ensure the safety of users during the game. In addition to racing, leisure and entertainment, action adventure, cultivation and chess games will also be launched one after another.

　　The unmanned aerial vehicle (UAV) on a concept car promo many years ago has finally landed. This UAV system, which is loaded on the roof of Wangwang U8 and customized by BYD and DJI, consists of a hangar assembly, an UAV, a flying battery, a remote sensing module, a remote control handle and an onboard flight control APP.

　　The most amazing thing is undoubtedly the UAV hangar, which can automatically replace and charge the battery before and after takeoff. When taking off and landing, the apron can be lifted automatically without manual assistance.

　　Intelligent Drive

　　Intelligent driving is also the highlight of this intelligent experience. BYD has deeply integrated the high-order intelligent driving assistance system of the Eye of God on Tengshi N7, and the hardware, software and algorithm of the full-scene intelligent driving system of the Eye of God are all developed by BYD.

　　On the Tengshi N7 that we experienced, the system uses intelligent driving sensors such as two ultra-long-range high-precision laser radars placed on the bumper of the vehicle, ultra-high-definition cameras surrounding the vehicle body and millimeter-wave radar to fuse the state data of the vehicle to make comprehensive decisions. Covers two major usage scenarios: high-speed/urban NOA and full-scene intelligent parking.

　　This NOA can complete driving tasks such as going up and down the ramp, actively overtaking, lane keeping and cruising at high speed; Driving tasks such as intersection traffic, traffic light traffic, overtaking, intelligent obstacle avoidance, merging, lane keeping, cruise driving, lane switching, and courtesy of pedestrians and non-motor vehicles are realized in the urban area.

　　BYD opened the intelligent driving experience of NOA in the city directly around the BYD factory in Pingshan. In the range of high-speed and expressway covered by functions, NOA in urban areas can realize the intelligent driving assistance function of following navigation and completing the automatic driving assistance task from the starting point to the end point. When entering the road section covered with high-precision maps, you can enter NOA by manually pulling the paddle behind the steering wheel.

　　This system is based on lidar+high-precision map, and it is not allowed to open the road section function. In addition, it should be noted that under the current technical level and the requirements of laws and regulations, any kind of intelligent driving is only an aid, and the driver can not completely let the system go, and still needs to put his hand on the steering wheel.

　　The dashboard shows the surrounding road conditions accurately, and the surrounding traffic participants, lanes and traffic lights will be displayed.

　　In the face of a relatively smooth expressway, it shows a very mature route planning and the ability to grasp the timing of getting on and off the road, and it is easy to overtake, change lanes and avoid obstacles. In the case of construction on the road ahead, it will also inform you in advance and drive out of the construction lane as soon as possible, and there is nothing wrong with the overall performance. According to the information of the map, the system will also intelligently choose the lane change opportunity according to the current road conditions when it senses that there is lane confluence ahead.

　　The overall style of this system is almost the same as that of similar products, but its strategy will be more conservative and safety first. Encountering pedestrians and two-wheeled vehicles in zebra crossings or lanes, the vehicle stops to yield to pedestrians and two-wheeled vehicles, the threshold is very low, and there will be almost no adventure game action.

　　It has not obvious ability to play with the surrounding cars, but the logic of the system is actually safety first. There is a lateral traffic jam in front of it, and the system will take the initiative to make a small deviation to the other side, or simply stop the brakes to actively keep a safe distance, but there will never be the action of borrowing the lane next to it, and the tires will never press on the painted line of the road all the time.

　　On busy road sections, in the face of crowded congested roads and other drivers who are not so disciplined, the system will be very timid, and it will appear that braking will be frequent in the car, and the car will be hesitant.

　　Urban areas will inevitably encounter all kinds of traffic lights. The system can identify the standard traffic lights and the current changes of traffic lights. In the face of traffic lights, you don’t have to consider the problem of stopping and starting at all, and the whole process is automatically solved. As for the road, even if the intersection is not horizontal and vertical, it can accurately drive into the corresponding lane. When the green light in the left-turn lane meets the green light in the opposite straight lane, the system will completely turn left according to the traffic conditions of the surrounding vehicles, and try its best to drive into the leftmost lane, and abide by the traffic regulations more than ordinary drivers.

　　Full-scene intelligent parking

　　Easy Sifang parking is a combination of easy Sifang technology and intelligent driving parking technology on the basis of vehicle intelligence. In the realizable scene, it can realize the rotation of side parking spaces around wheels and vertical parking spaces around the center of mass, adjust its strategy for different berths, make full use of every centimeter of parking space, and has two speed modes of comfort and extreme speed, which is more powerful than that of old drivers.

　　When parking sideways, we often encounter the situation that the side passages are all narrow. On-site, a link of PK side parking speed competition between people and cars was set up, and U8 equipped with easy-to-square technology can rotate around the inside front/rear wheel to park the car in the parking space with a nearly drifting action, which takes less than 30 seconds from start to parking, greatly ahead of the old driver.

　　Short-distance parking service can get off the bus, lock the car and park, stop at any time, automatically continue parking without drawing and preparation in advance, and the outdoor room can be used anytime and anywhere.

　　Driving vehicles will inevitably encounter the problem that the notice road is too narrow in the streets, parking lots or road sections with limited width. At this time, the narrow passage function can be turned on, and the system can use sensors to detect the surrounding space, helping users to realize the automatic passage of the limited width narrow passage and actively avoid obstacles. At present, the system can realize the automatic traffic limit width of 12.5cm left and right of the car body, which is the width of a rearview mirror.

　　Summary:A few years ago, BYD’s slogan "Leader of New Energy Vehicles" became a reality now. Its outstanding sales performance in the field of new energy has made BYD a new focus in the automobile market. Behind this, it is BYD’s constant overweight in technology research and development and its spare effort in technology application. In the critical period of the transformation of new energy vehicles, BYD will increase investment in all aspects of vehicle intelligence, and strive to continue to be the "leader" in the future competition with full-stack self-research.

　　According to the technology accumulation concept of BYD’s "technology fish pond", some projects of BYD’s intelligent block that we punched in this time are actually just an overview of BYD’s intelligent technology and the tip of the iceberg. What kind of "black technology" will BYD surprise us in the future?