During the Spring Festival of 2020, Li Yunfei, the head of BYD’s public relations brand, sent a message to Yang Feng, asking how a photo of BYD Han’s transshipment after the experiment had gone out.
As the director of BYD Han products and the person in charge of development, Yang Feng is a little helpless. "At that time, I told Yunfei that I still have nearly 500 cars here. Would you like to have a look?"
On March 16th, BYD opened the automobile and parts testing center to the media, especially the vehicle crash laboratory, and also showed several BYD Han after the crash test. Through the window of the collision laboratory, media reporters can also see a large number of BYD Han trial-produced scrap cars stored outside the laboratory.
Byd Han after a side collision
"There were more words last year, because after a year, many cars have been disposed of." Yang Feng told the media. "(BYD) Han in the whole process of research and development, we just trial-produced nearly 500 vehicles for safety testing, durability testing and reliability testing, including various subjective and objective evaluations, which can be said to have gone through a lot of trials."
One will make a million bones dry. Byd Han, on the other hand, is "one car makes a hundred cars dry." In order to develop this benchmark model, BYD has invested heavily. BYD Han not only carries all the latest technologies in the field of BYD smart electric vehicles, but also uses the experience accumulated in the development and verification of new energy vehicles since the car was built.
For example, since 2009, the classic e6 has been used for the crash test of electric vehicles, and BYD Han has made trial-produced cars one by one. Many projects are beyond the domestic collision standards and meet the standards of the United States and Europe.
one
Design safety performance according to L level.
In BYD, engineers define the vehicle performance by grades according to "LACU".
Take Han as an example, its safety performance is defined as "L" level. The so-called "L" means "leading position in the industry". (LACU strategy -L:Leading industry leading position; A:Among’s leading position in the industry; C: competitive in the industry; U: uncompetitive industry is not competitive)
The first is the simulation design. In the process of developing the Han model, BYD engineers use mathematical models to simulate the passive safety of the whole vehicle, system, subsystem and parts in the event of collision. Optimize according to the problems exposed in the experiment, and finally reach the design expectation of "L" level.
In order to meet the defined safety standards, Han adopted a high-safety car body, in which 43 military-grade thermoformed steel materials were used, and BYD Han’s body-in-white thermoformed steel consumption reached 97kg, which not only ranked first in China brand cars, but also nearly twice as much as the second.
Secondly, test verification, especially collision test.
BYD invested heavily to build a vehicle crash laboratory, which can meet the requirements of national standards, American standards, European standards and other laws and regulations and C-NCAP evaluation tests. According to the characteristics of electric vehicles, BYD has designed more experimental methods and means on the basis of relevant standards.
In addition to the common crash tests such as frontal, side and rear-end collision, Han also conducted more stringent and complicated safety tests for the complexity of road traffic and the characteristics of new energy vehicles, such as frontal crash with a top speed of 120km/h and ultra-difficult small offset collision, to ensure the safety of users in extreme traffic accidents.
Byd Han trial-produced car after roof static pressure test
2
Verify durability and reliability according to 1 million kilometers.
In addition to the verification of safety performance, BYD also verified the durability and reliability of Han.
First of all, BYD collected real data covering all parts of the country, such as road condition data, temperature data and humidity data, and simulated experiments in various extreme scenarios, just to restore the real car scene of users.
According to industry standards, the vehicle life of 150,000 kilometers is enough to cover 90% of users’ needs. The design life of most high-end cars in the market is 300,000 kilometers, while the target life of Han models is 600,000 kilometers, which is twice as much as that of most high-end cars of the same class.
In addition to the real vehicle road test, BYD has also adopted a large number of internationally advanced high-tech test equipment for laboratory testing. "24-channel road simulation test" is one of the most rigorous links, which can restore 95% of the road conditions that users may encounter, and the 4-column test bench used by most brands can restore 70% at most. The Han test vehicle will bump on the bench for 45 days and nights, and this test will take three rounds, which is equivalent to Han driving 1 million kilometers on the real vehicle test road, which is more than three times the test volume of most similar vehicles.
Byd Han is doing a 24-lane road simulation test
Of course, there is no shortage of road measurements. Han has also completed the "three highs" test, which not only bears the environmental cabin experimental test of various scenarios with the temperature covering -40℃-80℃, but also uses the team’s self-driving mode to actually test the vehicle performance from Hainan, yakeshi to Turpan and other places, and test the adaptability of charging facilities along the way.
three
Participate in the formulation and promotion of standards.
BYD is not only experienced in building new energy vehicles, but also experienced in testing.
In 2009, BYD e6 completed the first collision of pure electric vehicles in China; In 2011, BYD S6 became the first domestic SUV model in China to obtain the five-star standard. Although it is a fuel vehicle, it has also accumulated experience for new energy vehicles. Later Tang I generation became the first C-NCAP five-star new energy vehicle in China.
S6 opens BYD’s five-star precedent.
Thousands of valuable enterprise standards have been accumulated since the establishment of BYD Safety Testing Center. BYD is also actively involved in promoting the gradual improvement of relevant national safety regulations and standards. It is predicted that in 2022, China’s automobile safety standards will become the most stringent standards in the world.
In addition to safety standards, BYD has also participated in the drafting and formulation of a number of relevant national laws and regulations. For example, BYD participated in EVS-GTR (Global Technical Regulations on Electric Vehicle Safety). EVS-GTR was jointly formulated by China, the United States, the European Union and Japan, and BYD was the leader of TF8 (Commercial Vehicle Working Group) in the formulation of this regulation. At the 174th meeting of the United Nations World Vehicle Coordination Forum (WP29), the final standard was voted by the parties to the 1998 Agreement and passed unanimously. This is the first global technical regulation that China participated in as the main lead country.
Byd Han became the only domestic medium-sized and large C-class car with a monthly sales of over 10,000 yuan.
Since the launch of BYD Han, three benchmarks have been erected, one of which is the safety benchmark, represented by BYD blade battery. Judging from the development and testing process of BYD Han, BYD is not only the owner and leader of Sandian technology, but also honed the development and testing process of new energy vehicles and established its own moat before the industry. Byd Han’s safety is not just a blade battery.
——END——
To communicate with the author of this article, please add WeChat:
qiukaijun123
-recruitment information-
"Electric Vehicle Observer" is recruiting, and its working place is in Beijing. Interested parties please send your resume to: kaijunqiu@163.com.
Position: video director, post (1 each)
Requirements:
1 self-discipline, reliable;
Strong willingness to learn and excellent learning ability, college degree or above;
3 interested in electric vehicles;
Be good at writing video scripts and be able to shoot or edit videos independently;
5 be able to travel.
Work content:
Video shooting and production of new energy automobile products
Treatment:
1 Not less than the salary level and normal holidays of peers;
If you work together for a long time, you can be promoted to partner.
Position: news editor of new energy vehicles (1)
Requirements:
1 self-discipline, reliable;
Strong willingness to learn and excellent learning ability, bachelor degree or above, CET-6 or above;
3 interested in news, interested in electric cars;
4 writing is good;
5 be able to travel.
Work content:
News editing of new energy vehicles.
Treatment:
1 Not less than the salary level and normal holidays of peers;
If you work together for a long time, you can be promoted to partner.
![](https://file.dahe.cn/image/png/20231116/1700116132139453.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> As a frequent visitor to previous digital economy summits, at this year’s digital economy summit, Henan Mobile has become the focus of much attention. The signing of a number of major projects and the appearance of smart city applications have become another positive practice to promote the modernization of Henan.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116138838300.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> <b>The implementation of major cooperation contracts has promoted the development of digital intelligence in Henan</b></p>
<p> The digital industry is a strategic, fundamental and leading industry that supports economic development, and the wide application of digital technology is the fundamental starting point and end point for the development of the digital economy.</p>
<p> At the signing site of the major cooperation, Henan Mobile signed a strategic cooperation agreement with the Xuchang Municipal People’s Government. The two sides will focus on the theme of digital empowerment and high-quality development, with industrial digitalization and digital industrialization as the main line, and focus on key work such as "computing power grid connection and joint cloud construction". Continue to accelerate the construction of the Central Plains artificial intelligence computing center and the edge cloud computing center. Promote network structure optimization and high-speed direct connection, build edge cloud nodes, promote the landing of ecological partners in Xuchang City, consolidate and enhance the status of Xuchang City’s network hub, and build a "digital base" for the modernization of Xuchang.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116146206803.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> In addition, Henan Mobile also signed strategic cooperation agreements with ZTE, Shanghai Nokia Bell, H3C, and Huawei. According to the cooperation agreement, Henan Mobile will fully explore and utilize the advantages of each party in their respective fields, integrate customers, markets, channels, data, and technical resources, and carry out comprehensive and in-depth cooperation on improving 5G industry applications and basic communication networks, and improving the quality of communication services. A number of 5G application scenario demonstration projects will be launched one after another, and the integration of data and reality will help high-quality economic development.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116154551580.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> <b>Smart and efficient 5G applications deeply empower city management</b></p>
<p> As an important participant and promoter in the construction of the digital economy in our province, Henan Mobile has given full play to the role of a strong network province and a main force in the construction of digital Henan, promoted 5G empowered thousands of industries, and deeply empowered the construction of smart cities.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116166029580.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> Walking into the exhibition area of the summit, the 5G + AI multi-data collection mobile house inspection robot attracted many people to stop and interact and understand. "This robot is based on the traditional mobile RV and mobile house inspection robot, combined with 5G network slicing, AI machine intelligence, mobile Internet of Things, edge cloud combination and other technologies, to realize the application of patient data collection, robot mobile house inspection, MDT remote consultation, remote visitation and science popularization and education scenarios." Henan Mobile related person in charge introduced.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116172553872.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> At the event site, multi-functional 5G smart light poles that can be charged and monitored were also eye-catching. The reporter learned that the extensive application of Henan Mobile’s 5G technology is accelerating the application development of smart light poles. The high-speed 5G network connection allows smart light poles to transmit data in real time, thus better assisting all aspects of urban management such as traffic safety and accident prevention, environmental monitoring and management, energy conservation and sustainability.</p>
<p> 5G drones play an increasingly important role in the comprehensive management of cities such as digital urban management, environmental protection inspection, power inspection, water conservancy inspection, public safety, digital cultural protection, agriculture, forestry and plant protection, remote sensing surveying and mapping through real-time aerial data collection.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116179372212.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> More and more 5G applications are changing cities and lives. Relying on provincial and municipal government affairs clouds and 18 prefecture and municipal data centers, Henan Mobile integrates its own core product OneCity platform to create a smart city capability architecture of "1 cloud + 1 smart capability platform + N personalized applications". It has successively landed on the operation demonstration benchmarks of multiple smart city projects. It continues to help Zhengzhou, Xinxiang, Nanyang, Luoyang and other cities to carry out smart city construction, and accelerate the realization of "one network" and "one network unified management". It carries more than 500 government affairs systems in the province, solidifies the foundation of "digital government" construction, helps smart city construction, and comprehensively focuses on empowering government management, social governance and improving people’s livelihood.</p>
<p> "At present, we are using 5G network and BIM, GIS, Internet of Things, big data, artificial intelligence, digital twin and other technologies to create a three-dimensional holographic city information basic model for Zhengzhou." Li Jie, deputy general manager of Henan Mobile Industry Development Center, introduced that by establishing a digital model of the city, a smart city can be transformed from "numbers" to "things", covering all aspects of comprehensive management, construction, fire protection, community, etc., so that smoke sensing, water pressure and water level, electrical fire, rainfall sensing, and water level sensing can be sensed and known, and urban planning, construction, management, and operation can be improved in an all-round way. Problems such as difficulty in urban management, operation and maintenance, difficulty in improving the quality and transformation of stocks, difficulty in integrating data elements, and urban "fragmentation" can be solved, which will greatly improve the fine management level of the city, and build a three-dimensional holographic city information model basic platform (CIM basic platform) of "self-growth and self-renewal" in Zhengzhou City. Explore the "CIM + application" system with digital scenes as the core.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116186036723.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> In Hongqi District, Xinxiang City, Henan Mobile has built a 5G city operation center. Through the "1 + 1 + N" model, that is, based on 1 center and 1 capability, efficient innovation realizes N application scenarios. Li Jie introduced that the 5G new smart city project in Hongqi District is aimed at government management departments and can provide a command center platform, a one-yard platform, an Internet of Things platform, a smart community application platform, an urban flood control point monitoring, a comprehensive management center video platform, a smart fire protection platform, a smart party building platform, a supervision and inspection platform, an intelligent outbound call platform, a video center, a one-network unified management platform, a data center and other software platforms; at the same time, it provides hardware construction such as Government Cloud as a Service, Smart Light Pole, and Command Hall. Utilize 5G, big data, cloud computing and other new generation technologies to empower urban management, realize the intelligence of urban management and service system, realize the integration and sharing of information resources, and create a smart city with fine management of information excellent governance, information benefiting the people, and information industry.</p>
<p> Not only that, with the continuous improvement of 5G networks, more and more 5G empowering smart city project cases such as Luohe municipal smart parking case, Luoyang Luoning County digital city case, and Jiaozuo 5G new smart city have taken root and blossomed all over the province.</p>
<p> In addition, Henan Mobile continues to expand the capabilities of big data products, focusing on government services, cultural tourism, business enterprises and other application scenarios, incubating a number of data products such as reach, risk control, insight, and capability, and effectively transforming data resources into productivity that promotes enterprise development.</p>
<p style=)
![](https://file.dahe.cn/image/png/20231116/1700116192805617.png?imageMogr2/thumbnail/600>/format/jpg "style =" max-width: 100%; "></p>
<p> The relevant person in charge of Henan Mobile said that in the next step, Henan Mobile will deeply integrate into the national digital economy development strategy, continue to deepen cooperation with digital economy advantageous enterprises, help the digital industry capacity to continuously improve, provide more powerful support for the Chinese path to modernization in Henan practice, and help Henan to write a more brilliant chapter in the Central Plains in the new era. (Wang Jing, Fu Yanbo)</p>
<div class=)
