标签： 南京桑拿

　　BEIJING, Oct. 11 (Xinhua) According to Singapore’s Lianhe Zaobao, he met with Singaporean florist Li Guoxiong for an interview at the Botanical Garden, and he led him to walk the rainforest trail in the garden, slowing down while talking and immersing himself in the embrace of nature. You can’t see gorgeous flowers in the tropical rain forest area, but there are some nameless trees and green leaves. Li Guoxiong explained the characteristics of various leaves with great interest, and then described the posture of these plants with rich imagination.

　　Born in Hong Kong, Li Guoxiong (53 years old) has been engaged in floral creativity for 18 years. He analyzed: "Florists are different from flower arrangers, who generally refer to people engaged in flower arranging industry. Florists specialize in building art with natural flowers and trees, examining the world from the high platform of art, and pursuing the unknown field from afar. Floriculture works are in the same position as visual arts such as sculpture, painting and photography. "

　　Take the place of Taitai in class and love floriculture.

　　A piece of rotten wood, several leaves and several budding buds, if we look closely at Li Guoxiong’s floral creation, we can really figure out the layers of meaning from it, just like a work of art waiting for you to appreciate it.

　　"I have a strong interest in art since I was a child, especially things related to Chinese culture. I like observing things. Although I like flowers and trees, I have never thought of engaging in floral creation. In 1990, our family immigrated from Hong Kong to Sydney, Australia. At that time, we planned to do business with our wife in the flower shop. My wife signed up for the Western Flower Arrangement Course at Sydney Institute of Technology, and just before the course started, I found that I was pregnant and felt unwell, so I crustily skin of head took the place of my wife.

　　"The first class was not very satisfactory, and I was in a hurry. Fortunately, after tempering, I made progress in my studies and built up my confidence. The love of flower arrangement was born under such accidental circumstances. "

　　The flower shop didn’t open in the end, but the flower arrangement course allowed Li Guoxiong to explore his potential talents.

　　Combine the essence of eastern and western floral art

　　Li Guoxiong’s teacher greatly appreciated his craft and invited him from many students to assist in the Christmas floral arrangement of Sydney Opera House, which greatly encouraged Li Guoxiong, who began to master floral skills. The teacher even encouraged him to take part in all kinds of floral creative competitions. Although he initially fell out of Sun Shan, after observing the winning works, he won the first and second prizes several times in the following competitions and became the Chang Shengjun of the Australian floral competition.

　　At the same time, Li Guoxiong’s interest and enthusiasm for flower arrangement extended to japanese ikebana, where he studied with Seiseki Umemura, a Japanese grass moon teacher, and also studied floral art and theory with Norman Sparnon, a famous Australian floral master, and obtained a license as a flower instructor.

　　"I combine the oriental flower pattern with the essence of western floral art, and my works are full of’ gentle wind’ and rhythm. This kind of creativity has won a good response in the floral industry in Australia and Britain. There are many kinds of flowers in Sydney, and there is no shortage of wonderful floral products, which has taught me a lot. " Li Guoxiong said it.

　　He once held a solo exhibition in the Japanese Association.

　　Li Guoxiong and his wife Yang Peiyi both graduated from the National Taiwan Province University. He majored in archaeology and anthropology, while his wife studied China literature. After graduation, the couple returned to Hong Kong to engage in education for several years. After immigrating to Australia, Li Guoxiong took a half-course in flower arrangement and completed a master’s degree in theology. In 2004, he came to Lion City with his family for missionary work, and his decision to settle in Singapore was closely related to his floral creation.

　　"In 2005, I held a personal floral photography exhibition at the Japanese Association through the recommendation of a Japanese lady, Kato Hui. I created these works in Sydney, and I felt that the life of floral products was short, so I preserved them with images. The response of the exhibition was very good. I am glad that the Japanese who came to watch it can accept the fresh combination of traditional flower patterns and western-style floral art. It is undoubtedly a great affirmation to know that both the East and the West agree with my creative style. "

　　The following year, Li Guoxiong published his own floral photography collection "Golden Wind". The wife beside shared: "Thanks to the efficiency of Singapore, we successfully published this floral album. From design to printing, the responsible company has demonstrated a superb level. We are very satisfied with the quality of the book and have a good impression on Singapore. In addition, Singapore’s multicultural and comfortable living environment are the reasons for choosing to stay. "

　　It is worth mentioning that "Golden Wind" won the gold medal in the authoritative international publication exhibition, which was highly appreciated and recommended by major international flower fairs.

　　Take local materials in the lion city

　　How has Li Guoxiong’s creation changed since he settled in the Lion City?

　　"Australia has four distinct seasons, and the vast natural environment has a great influence on my creation. Coming to tropical Singapore, it is not easy to choose flowers because of the small space, so it is a new test to create in a limited environment. I have a soft spot for Nanyang store house culture, and I created a floral product with the theme of Chan Museum in Nilu.

　　"This is a beautiful blue house, which creates the atmosphere of the old building through floral art.. Blue utensils symbolize the house, the gaps in palm leaves represent the shutters of the house, and orchids are unique to Singapore. "

　　Li Guoxiong is an artist who understands life because of his meticulous observation of things and delicate mind, and drawing materials from trivial matters or chores around him. He said that the first house he lived in the island was the Longmen Mansion on Wuyuan Road in Spottish, and there was a vast jungle opposite his home. He spent a long time there meditating and looking for new creative materials.

　　He gradually realized that the leaves in Singapore were actually full of beauty, just like palm trees that he had never seen in other cities. "Floriculture creation doesn’t have to be dominated by flowers. There are layers of leaves, not full of green leaves. I occasionally put a few dead leaves into my works to express the normality of life. This is the creative concept I call’ winning in defeat’. "

　　Give full play to Nanyang characteristic culture

　　Li Guoxiong’s family of four has the right of permanent resident in Singapore. His wife is a Chinese teacher in an international school. Their two children, aged 18 and 14, are studying in an international school where his wife teaches.

　　Having lived in Hong Kong, Taipei, Sydney and Lion City, Li Guoxiong believes that the greatest feature of Singapore stems from the diversity and integration atmosphere of the four major races. He believes that the island countries have made progress in promoting the development of culture and art in recent years; In addition, Singapore is located in an important hub and is adjacent to many Southeast Asian countries, so it should influence each other, absorb and integrate, and give play to the unique artistic culture of Southeast Asia. (Mai made a special trip)

　　Today (August 5th) morning, the the State Council Press Office held a policy briefing, and the heads of the Ministry of Industry and Information Technology, the Ministry of Science and Technology and the Health and Wellness Commission introduced the situation of improving the testing capacity of Covid-19.

　　According to the relevant person in charge of the Ministry of Industry and Information Technology, by the end of July, there were 4.84 million people with daily nucleic acid detection capacity, 4,946 medical institutions with nucleic acid detection capacity and more than 38,000 detection technicians, and nearly 200 million reagents and more than 12,000 sets of equipment had been sent to hospitals, disease control centers, testing institutions and customs ports at all levels in the country. Guaranteed the completion of the Wuhan General Assembly War with 10 million people detected, the tough battle in Beijing with 10 million people detected, the normalized positional warfare imported by foreign defense in Heilongjiang, Guangdong and Shanghai, and the emergency assault warfare in Xinjiang and Dalian in recent days, and realized the requirements of "should check and check" and "willing to check and check".

　　The relevant person in charge of the Ministry of Industry and Information Technology said that the next step will focus on four tasks.The first is to promote the construction of testing capacity.On the premise of strengthening the prevention of biological safety risks, we will ensure that the national tertiary general hospitals, infectious disease hospitals, disease control institutions at all levels and a county-level hospital in the county have the ability to detect nucleic acids before autumn and winter. At the same time, make overall use of institutions such as disease control, medical care and third-party testing, strengthen the construction of mobile testing power, and be able to dispatch quickly in the early stage of the outbreak, and combine local testing power to complete the testing task as soon as possible.The second is to step up the training of testing personnel.The national and provincial centers for disease control and prevention, clinical inspection centers and other organizations carry out training on nucleic acid detection technology to meet the increasing demand for detection capacity building.The third is to speed up scientific research and review and registration.Accelerate the development progress of rapid testing products, create application scenario conditions, and help products to be approved for use as soon as possible. Develop products with short detection time, high sensitivity and simple operation to improve detection accuracy and efficiency. At the same time, promote the research and development of antigen detection and other new technologies and new products, and further enrich the technical means of detection and screening. Strengthen the early intervention of evaluation and registration, promote more new products to enter the emergency approval channel, and shorten the time to market.The fourth is to strengthen the production guarantee of detection reagents and equipment.Help enterprises to stabilize and expand production, guide enterprises to continuously optimize the supply chain structure and continuously improve product performance. Give further play to the role of medical material support dispatching platform and strengthen the docking between production and demand. According to the capacity building needs of medical institutions and customs system, coordinate enterprises to organize production and do their best to supply. All parties concerned should strengthen the funds and financial support for R&D and production, so as to fully guarantee the improvement of nucleic acid detection ability. (CCTV reporter Sun Weiwei Yang Yi Yuan Bin)

"As a forecaster, I hope I can understand the secret and draw the forecast closer to the reality." Sun Jun, the chief forecaster of the Central Meteorological Observatory, has been a forecaster all his life, from a handsome young man to an old comrade with white temples. From using pencils to using artificial intelligence, he has been understanding the secret all his life.

On December 1, 2023, Sun Jun judged the closing ceremony weather of the Pacific Games at the Solomon Islands Meteorological Bureau. Figure/Jing Hao

Exploration-the scientific mystery in the clouds

"Experienced ups and downs, find the law in the changing situation. When the forecast is successful, it is not too joyful; When the forecast fails, don’t be too upset, and constantly explore and improve the forecast. " Sun Jun said.

After doing one thing all his life, Sun Jun thought about it for a while and simply gave the word "worth it".

"The flood in Jilin in 2010, the torrential rain in Beijing on July 21, 2012, the torrential rain in Henan in 2021, and the extreme rainstorm in Beijing, Tianjin and Hebei in 2023 …" Talking about the past, many weather processes are clearly visible in Sun Jun’s mind.

He often gets to the bottom of the weather. And this curiosity began from childhood. When I was a child, Sun Jun saw a neat cloud boundary in the dark sky: the sky was overcast on one side and Wan Li was clear on the other. He is full of curiosity: what is this?

This "why" continues to work. "Dealing with the weather is also my initial intention to explore scientific issues." Sun Jun said.

Find problems in forecasting, solve problems in scientific research, and apply research results to business, thus further improving forecasting accuracy. Sun Jun observed, discovered, analyzed and verified over and over again, and carried out a cycle from forecasting to scientific research to forecasting.

In July, 2021, due to the rich water vapor brought by the typhoon landing, a torrential rain occurred in Henan. Sun Jun and his team once included the rainstorm affected by typhoon landing in the research scope.

……

Time and time again, the scientific research topics were condensed-warm rainstorm, typhoon rainstorm and extreme rainstorm. Sun Jun and his team found clues of scientific problems from the forecast process.

After continuous research, scientific research has also made a series of progress. In the diagnosis of extreme rainstorm, the water vapor condition, dynamic condition and thermal condition are diagnosed and analyzed, and the abnormal meteorological factors causing extreme rainstorm are screened.

In 2023, the forecast accuracy reached a new high, and the score of 24-hour rainstorm increased to 98% compared with the mainstream model, reaching the highest level in history.

It is the confidence brought by continuous exploration that allows him to confidently give the conclusion that "it won’t rain" in the face of complex weather situation in the forecast of Hangzhou Asian Games.

Responsibility-Forecast and Early Warning in Storm

"I always say that human life is related to the sky, and the sky here refers to the weather." Weather is closely related to the safety of life and property. Therefore, he has a strong sense of mission and responsibility. "If the forecast is accurate, we can better prevent and respond, and we can keep safe." Sun Jun said.

In order to catch up with time, he is always the first to arrive at work when he is on duty. "Sun Jun is a respected old forecaster and very dedicated." Zhang Tao, chief forecaster of the Central Meteorological Observatory, said.

Sun Jun recalled the flood in Jilin in July 2010, and was faced with the judgment of whether the reservoir needed flood diversion and whether the dam needed blasting. "This is a major test." After careful analysis, Sun Jun and his colleagues accurately judged the precipitation level.

In July 2023, a rainstorm occurred in Beijing, Tianjin and Hebei. Sun Jun "recalled" the weather process in his memory, thinking that it was similar to the "July 8" rainstorm in Henan, and it was extremely extreme, so he raised the forecast precipitation. Later, it was proved that this adjustment was correct.

With global warming and frequent extreme weather, many data exceed the extreme value, which breaks through the forecaster’s original cognition and increases the difficulty of forecasting.

Adhering to a scientific and rigorous attitude, Sun Jun is not afraid to challenge the numerical model prediction. "It’s always calm when things change." Yang Shunan, chief forecaster of the Central Meteorological Observatory, commented on Sun Jun this way.

Colleagues gave Sun Jun a nickname, "Sun 500", which came from a bold and cautious forecast. From June 17th to 21st, 2010, a rainfall process occurred in the northeast of Jiangxi. Sun Jun gave the forecast conclusion of the maximum precipitation of 500mm. This is a bold forecast, which is much higher than the conclusion of the numerical model. After analysis and verification, his prediction conclusion is accurate. Sun Jun teased that if the forecast was not accurate, it would be called "Sun 250".

"Because there is always uncertainty in forecasting, there is always pressure." Under the calm appearance, Sun Jun also has his own pressure. On many nights when rain is predicted, he will wake up and look at the sky. On the day of duty, he will be slightly gaunt when he is full of energy.

Pursuit-the precision of time and space

In the late 1980s, Sun Jun joined the Central Meteorological Observatory. On the topographic map with provincial boundaries, Sun Jun draws the weather map with a 2B pencil and red and blue pencils. "At that time, there was a lack of forecast data and there was no precipitation data to refer to. A clever woman can’t cook without rice. " Sun Jun said.

With the development of science and technology, with the blessing of satellites, radars and automatic weather stations, the observation data and information are more abundant. "The temporal and spatial resolution of the forecast is more refined." Sun Jun said.

The technology is changing, and Sun Jun’s love for forecast maps remains unchanged. "Drawing weather maps is a pleasure." In his view, synopsis is a subject dealing with data. In order to better compare historical cases in forecasting, Sun Jun keeps the weather maps and key physical quantities of many weather processes in mind.

"To be an excellent forecaster, you need not only excellent professional knowledge, but also knowledge of astronomy, geography, politics and economics." The understanding of social economy also enables Sun Jun to better serve the weather forecast in production and life. Before Spring Festival travel rush this year, Sun Jun predicted the cold wave weather in advance. Considering the impact of road icing on Hubei, Henan, Anhui and other places, he recorded an interpretation video.

In 2025, Sun Jun reached the age of retirement. At present, in addition to doing a good job in weather forecasting, he has also shifted his focus to personnel training: leading the team to tackle key scientific research problems and teaching … Liu Yi, the global meteorological office of the Central Meteorological Observatory, said, "There is laughter everywhere."

At the same time, Sun Jun also participated in global monitoring, forecasting, service and other work, making forecasts in a larger world and passing on his experience to more people.

"Now, the pursuit of weather forecasting is fixed-point, fixed-time and quantitative. As long as the accuracy rate has not reached 100%, we must continue to explore and be a dream catcher forever." Sun Jun said.

(author:Xu Nenyu Editor: Zhang Lin)

1905 movie network news On November 5th, musician LAY returned to his hometown of Changsha with his second solo album "SHEEP" to hold a signing ceremony. Zhang musician, who has always been warm-hearted to fans, personally made the famous chili fried meat in his hometown and brought it to the signing party for fans to taste. He also compiled the fans’ messages into lyrics, improvised music and played songs on the spot, and inadvertently showed his musical talent while using music.

As LAY’s second solo record, SHEEP has refreshed many music lists at home and abroad since its release, and achieved impressive results. This time, Zhang musician returned to his hometown of Changsha with his new album "SHEEP", held the signing ceremony at his doorstep, and brought the honor of "SHEEP" back to Changsha. At the event site, LAY arranged special benefits for the fans, personally cooked and made the famous Changsha dish Chili Fried Meat, and passed on his full heart to each other through delicious food. Not only that, Zhang musician also compiled the messages of fans on the message board into lyrics, improvised music and sang on the spot, and expressed his gratitude to fans in the form of music.

In view of the fact that LAY wrote the fans’ names XBACK on their hands and necks in the first two signing activities, where the musicians will write XBACK this time has become a hot topic among fans. At the beginning of the activity, the host also asked out of curiosity. LAY bluntly said, "In my heart", and the fans collectively cheered sweetly: It’s amazing. Finally, the whole activity was carried out in a pleasant atmosphere.

The challenging plateau extreme environment is the most rigorous testing ground for off-road vehicles. As a representative of off-road field, Toyota Land Cruiser is famous for its long history and strong off-road ability, and is deeply loved by senior off-road players. As a new cross-country species, Dongfeng Warrior 917 not only inherits the cross-country genes of military warriors, but also incorporates intelligent electric technology, successfully opening the luxury road of hard-line cross-country. On the plateau, who is better between the two? Only after the comparison will we know!

Power system competition, whose performance is stronger?

In the off-road field, Toyota Land Cruiser has always been known for its powerful performance and reliability. It is equipped with a 4.0L V6 naturally aspirated engine with a torque of 385 Nm. However, in the plateau area, this car has encountered obvious challenges. Due to the high altitude, thin air and low air pressure in the plateau area, the engine intake of Land Cruiser is significantly reduced and the fuel combustion is insufficient. This directly led to a sharp decline in its dynamic performance, and the original strong power became soft and weak on the plateau.

In contrast, Dongfeng Warrior 917 provides more diversified power options, including pure electric version and extended range version. The pure electric version adopts a four-motor four-wheel drive system, with a horsepower reserve of up to 1088Ps, and the acceleration time of zero hundred is only 4.2 seconds, which can maintain strong power output even in the plateau environment. The extended-range model is equipped with three motors and a 1.5T range extender, with a horsepower of 816 horsepower and a CLTC comprehensive cruising range of 1,026 kilometers. Because the range extender is not directly involved in driving, the power is slightly affected by the altitude change, providing stable and sufficient power in the plateau area.

Who can provide more comfortable driving experience in suspension system competition?

Suspension system plays an important role in vehicle performance, comfort and passability. The rear axle of Toyota Land Cruiser adopts dependent suspension (integral bridge type). Although this structure can provide better bearing capacity and passability under complex road conditions, when driving at high speed under continuous potholes, the overall bumpiness of the vehicle is relatively strong, which affects the ride comfort.

Dongfeng Warrior 917 is equipped with AeroRide multi-stage intelligent adjustable air suspension from BWI Jingxi, equipped with 5-speed adjustment, supporting 150mm long-stroke suspension height adjustment, supporting 45mm downward adjustment and 105mm upward adjustment, which can realize multi-body attitude adjustment, support body height adjustment, body height maintenance, easy loading, suspension welcome function, and take into account multiple requirements of off-road, fuel economy and convenience of boarding and descending. The maximum ground clearance of 335mm can be reached in the extrication mode, which brings strong road trafficability.

Steering system competition, who can bring better handling?

Today, with the continuous innovation of automobile technology, the performance of steering system directly affects the driving experience of vehicles. The R-EPS electric power steering system adopted by Dongfeng Warrior 917 has higher steering efficiency than the common EPS system of ordinary off-road vehicles. At the same time, the R-EPS electric power steering system has stronger axial load capacity. This makes the steering system of Dongfeng Warrior 917 work stably and maintain good handling performance when it bears a large load and impact, which provides a strong guarantee for the reliability and safety of the vehicle.

In sharp contrast, the traditional hydraulic power steering system adopted by Toyota Land Cruiser. Due to the characteristics of its mechanical structure, it may increase the driver’s driving fatigue when driving for a long time or needing frequent steering operations. More crucially, in the plateau environment, the hydraulic power steering system is facing severe challenges, and hydraulic oil pipes and other components are prone to air resistance, which will directly affect the working performance of the system, resulting in slow and inaccurate steering response, and may even endanger driving safety in severe cases.

Brake system competition, braking can only play wild.

Toyota Land Cruiser is equipped with mechanical hydraulic braking system, which is famous for its stable and reliable braking torque. However, in this special environment of plateau area, due to high altitude and large temperature difference between day and night, these extreme conditions put forward a severe test for the performance of hydraulic oil. In low temperature environment, the fluidity of hydraulic oil becomes worse, which may lead to the slow response speed of the braking system, thus affecting the braking effect; However, at high temperature, the hydraulic oil pipe is prone to air resistance, which further reduces the braking efficiency. These problems not only affect the driving comfort, but also affect the driving safety to some extent.

Facing the challenge of plateau environment, Dongfeng Warrior 917 adopted a more advanced IBC hydraulic brake-by-wire system. This innovative technology directly controls the braking system through electronic signals, and accurately controls the flow and pressure of hydraulic oil, thus achieving accurate control of braking force, which significantly improves the braking effect and safety. Compared with the mechanical hydraulic braking system, the brake-by-wire system has faster response speed and higher sensitivity, and can respond to the driver’s braking instructions more timely.

Who is the more reliable travel companion in the security competition?

In the automotive field, safety has always been one of the core elements that consumers are most concerned about. Toyota Land Cruiser adopts TNGA architecture, the body is welded by laser, and the frame is mainly made of high-strength steel. This kind of steel has excellent tensile strength and yield strength, which can effectively absorb and disperse energy during collision and protect the safety of occupants in the car. In addition, the key parts of the car body, such as A-pillar, front pillar and roof beam, are reinforced with multi-layer structure and high-strength steel plate to further improve the rigidity and anti-collision ability of the car body.

Dongfeng Warrior 917, as a luxury electric off-road vehicle, adopts the technology of ultra-high-strength internal high-pressure integrated molding of longitudinal beam pioneered by non-loaded off-road vehicle in China, and uses high-pressure water medium to close the cavity for expansion, which can make the longitudinal beam stable in size, without weld, welding scale and welding slag, and welding thermal deformation. Due to the cold work hardening effect of expansion, the strength of parts is improved by 10% compared with the strength of materials. The frame structure is made of high-strength materials, and the coverage rate of high-strength materials from 600~800Mpa to 800 MPa is more than or equal to 85%. The high coverage rate ensures the strong and durable performance of the car body and ensures superior passive safety protection.

Four-wheel drive system competition, who has stronger ability to get rid of difficulties?

As we all know, the ability to get out of trouble is one of the core indexes for verifying off-road vehicles. As an evergreen tree in off-road field, Toyota Land Cruiser’s full-time four-wheel drive system has always been its proud capital, and it has won the favor of many consumers with its excellent comfort, stability and long-distance crossing ability. However, the domestic version of the Land Patrol lacks the front and rear differential locks in the four-wheel drive configuration, which makes it slightly inadequate in the face of extreme off-road conditions.

In contrast, Dongfeng Warrior 917 is equipped with electronically controlled mechanical differential lock and central virtual differential lock, which can achieve 100% mechanical locking, which not only improves the efficiency of torque transfer, but also ensures the stability and passability of the vehicle under extreme conditions. This configuration allows the Warrior 917 to face all kinds of complex terrain with ease and easily challenge extreme off-road conditions.

At the same time, Dongfeng Warrior 917 is the only vehicle in China that has passed the durability test of "National Military Standard" (GJB). After four rounds of military standard durability test, the total mileage exceeds 1 million kilometers, and the actual mileage of equivalent users is nearly 6 million kilometers, covering 99.5% of user usage scenarios. Among them, off-road working conditions, mountainous areas, mining areas and other extreme working conditions account for as much as 50%, ensuring that vehicles can maintain reliable operation under any circumstances, showing excellent reliability and durability.

With the continuous progress of science and technology, the automobile industry is undergoing changes. Dongfeng Warrior 917 has become a new dark horse in the off-road field with its advanced technology configuration and excellent performance, and has also set a new benchmark for domestic off-road vehicles. Traditional fuel off-road vehicles, such as Toyota Land Cruiser, may also need continuous innovation in technology to cope with the ever-changing market demand and environmental challenges.

　　Sina Auto News The second-generation Changan Yidong, which was listed at the end of March, must have left the deepest impression on everyone, which is the brand-new exterior design and the space practicality that has continued from the first-generation model. Yidong’s market vitality is very strong, and it has been firmly occupying an important market position in the independent A-class car camp for many years. In fact, there are not many independent models that can adhere to the complete life cycle and realize the replacement. For Changan, if the replacement of Yidong only stays in the face value and space, it seems a bit "strong outside and hollow inside". This time, we were lucky enough to come to Chang ‘an Automotive Engineering Research Institute to perform a major operation on the second generation Yidong to see what progress it has made compared with the first generation in terms of driving quality.

　　Important chassis parts of two generations of Yidong vehicles were put on the scene. Zou Yi, a senior automobile engineer in Chang ‘an, emphatically introduced the differences in suspension structure between the two generations of mobile vehicles.

　　Although they are all rear suspensions in the form of torsion beam, the second generation of escape rear suspension adopts U-O Forming closed torsion beam rear suspension from German suppliers, which is more difficult in process. The biggest feature of the new rear suspension is that it reduces the weight by 20% compared with the traditional V-shaped torsion beam on the basis of ensuring the structural strength. The reduction of unsprung weight has obvious benefits for vehicle handling performance.

　　The improvement in technology is perceptible. Touching the inner side of the cross beam of the two-generation mobile rear suspension, you will find that the inner surface of the first-generation runaway has obvious burr feeling, while the inner side of the second-generation vehicle is obviously smoother, which feels like the effect after a steel plate is bent and butted end to end.

　　Facing the domestic road conditions, the hidden danger of the rear suspension of many models is not the fracture of the cross beam, but the stress fatigue is easy to form between the transverse and longitudinal beams. The welding area between the second-generation escape rear suspension beam and the longitudinal beam has been increased, and the official introduction shows that its reliability has been improved by 380%.

　　There are also differences in the arrangement of rear suspension shock absorbers between the two generations. We see that the shock absorber of the first generation model is located in front of the shock absorber spring and has a short length; The shock absorber of the second generation model is located behind the spring and has a long length. The purpose of adopting this vertical arrangement is to improve the efficiency of isolating vibration. After all, a longer shock absorber can provide a larger compression stroke and more adjustment space, thus improving the comfort of the rear row. In fact, if you pay attention, you will find that many luxury brands C-class cars and D-class cars also use this "super-long" shock absorber and arrangement. At present, this layout method has been used in Focus, Lectra 01 and other models, and the next generation of GM models will be equipped. Independent brands have also been gradually adopted, and the second generation of Yidong is one of them.

　　In order to improve the comfort, engineers have also optimized the bushing structure of the second-generation runaway suspension, and appropriately reduced the stiffness of the bushing, which can improve the filtering ability of the suspension to road vibration and help to isolate the road from fine bumps.

　　Changan engineer also demonstrated the process of adjusting the shock absorber for us. Engineers will put the designed shock absorber prototype on the bench for testing, and the bench will compress/expand the shock absorber at different speeds of 0.05, 0.1, 0.3, 0.6 and 1.2m/s for four times to simulate the daily road conditions. In this process, the system will generate the damping data of the shock absorber to optimize the shock absorber repeatedly. We see that there are throttle plates with different sizes and shapes in the shock absorber, each with different specifications.

　　For example, there are 28 different schemes of throttle plate in the above picture, and its working state and deformation can affect the flow of damping oil, and then affect the performance of shock absorber. Although the shock absorber does not directly reflect the "soft and hard" parts of a car suspension, these small differences can determine the final driving experience of a car. In fact, few domestic independent brands can independently develop, test and adjust shock absorbers like Changan, and most of them directly send the requirements to suppliers for them to do.

　　After the chassis suspension is developed, the vehicle will be handed over to KC test bench to verify the suspension and steering motion characteristics. The cost of the test-bed is about 20 million yuan, which can quantitatively simulate the load and wheel state parameters of the suspension under various road conditions or body postures. It takes 2 days for each prototype to be put on the shelf, collect data, and then complete a set of tests, in which the collection time of complete KC data takes 4 hours. Of course, it is impossible for a car to go through KC test only once, and the comprehensive performance of the chassis system needs to be adjusted and verified repeatedly. This process is extremely cumbersome.

　　For front-drive vehicles, vehicles tend to understeer during intense driving. It is impossible for a car to have no understeer at all, and engineers can only minimize this trend. In the second generation, the toe-in gradient of the wheel was optimized, and the relative positions of the internal and external mounting points of the steering gear were modified, which can slow down the trend of understeer to a certain extent, and then improve the handling stability of the vehicle in corners.

　　Chang ‘an has his own thoughts on driving DNA. For example, in terms of steering transmission ratio, the second generation of escape has not only pursued the feeling of comfort. Compared with the first generation model, its steering line angular transmission ratio is reduced from 3 laps to 2.83 laps. Most cars and SUV models on the market need about 2.8~3 laps from left to right, and sports-oriented models will take about 2.5 laps. From the change of the transmission ratio of the second-generation freewheeling steering, we can also see that Chang ‘an is not satisfied with "good driving", but should work hard in the direction of "fun+good driving".

　　For the adjustment of EPS electric power steering carried by the second generation Yidong, Changan uses a set of "robot" system that can quantitatively control the steering wheel angle and speed, and measure the steering wheel torque and body roll angle in real time. Engineers will set up different test forms, such as sine input, sweeping and catching up, to test the roll degree of the vehicle, the response speed of the steering wheel and the reliability of the steering motor respectively. It is worth mentioning that the second generation of escape has improved the power of EPS steering assist motor, so that the ease of use and reliability of the vehicle in extreme handling are more guaranteed.

　　In addition to the steering transmission ratio just mentioned, the steering force feel is also an important item in EPS adjustment. Engineers showed us two different forces used in the test, namely, extremely light and heavy. During the test drive, you can really feel the different performances of the vehicle under two kinds of dynamics. In the extremely light mode, the steering feel of the vehicle is almost zero, and it begins to respond when it touches the vehicle lightly; In the heavier mode, the steering power is obviously reduced, and the arm will be tired when rubbing the car and turning around at low speed. The engineer said that the steering power directly affects the communication between a car and the driver, and it is not advisable for the steering wheel to be too light or too heavy. Therefore, EPS should be adjusted in combination with factors such as vehicle positioning and suspension calibration, so as to achieve stability and give people some driving pleasure.

　　In April this year, the second generation Yidong achieved a braking performance of 35.6 meters in a public test, which is known to friends who know a little about cars-similar to many luxury brand sports-oriented models. This time, Changan engineers analyzed some reasons behind this achievement for us.

　　In this pie chart, we can see that the braking performance of a car excludes environmental factors, and the factors related to the vehicle itself include axle load, calipers, body posture, tires, ABS and friction materials. The second generation of escape is mainly optimized for the thermal stability of the brake system and the formula of the brake shoe.

　　Through CAE simulation analysis, the influence of different caliper fluid requirements on pedal stroke is simulated, and then the thermal stability of brake disc at different temperatures is simulated. Simulation analysis can greatly improve the efficiency of research and development, so that engineers can take as few detours as possible.

　　Of course, only simulation analysis is not enough. Chang ‘an also has its own braking system laboratory. For example, this is where the brake pedal strength and master cylinder pressure are tested. Why are the brake pedals of some models "soft" at the initial stage, and it is necessary to step on the vehicle deeply before the braking force is obviously released? This is the key issue. Generally speaking, there is a certain gap between the pedal and the master cylinder pressure, that is, the empty position of the brake pedal, but excessive defecation in the empty position will delay the release of braking force and even cause safety hazards. Although the second-generation Yidong 35.6-meter 100-kilometer braking performance is not directly related to fine adjustment, we can also see from here that Changan’s control over the details of driving experience is quite in place.

　　In terms of braking materials, the second generation Yidong has optimized the formula compared with the previous generation. The main improvement aspect is to control the thermal decay of the brake as much as possible when it is above 500℃, and reduce the sensitivity of the brake to pressure and temperature. In other words, in the future, car owners can use the brake pedal to control the speed more confidently when they are driving downhill on a mountain road for a long time, and the vehicle is not easy to "stop" because the temperature of the brake system is too high.

　　In the past, independent brands were still making efforts in terms of large space and high configuration, striving to win the favor of consumers with low prices and high allocation. With the domestic auto market becoming more and more mature, the car buyers have a deeper understanding of cars, and improving the internal quality of vehicles has become a hard bone that manufacturers have to chew. Two generations of Yidong, the first generation of models gain a foothold with high cost performance, and the second generation of models will inevitably improve their driving quality. You really can’t just look at the configuration list when buying a car in the future. If you don’t get in the car and drive it, it’s hard for you to know its inner beauty.