[Aika car SUV channel original]

　　Roewe RX5′ s monthly sales of 20,000 units can be said to have earned enough profits and eyeballs for SAIC. It must be said that SAIC’s accumulation in styling design in recent years has brought exquisite appearance to RX5, and another group of young people in the same R&D center have also created many topics for RX5 human-computer interaction system with their unique ideas. What kind of world is hidden under such a car that shines brightly?

　　The vehicle we shot this time is Roewe RX5 20T two-wheel drive Internet Smart Edition, equipped with a 1.5L turbocharged engine and a 7-speed dual-clutch gearbox, driven by front wheel drive.

I. Overview of Chassis

　　Similar to the chassis structure of many compact SUVs on the market, RX5 adopts McPherson independent front suspension and E-type multi-link independent rear suspension. The chassis of RX5 has no redundant guard plate to protect the parts, from which we can also see that it focuses on the positioning of urban road conditions. However, through analysis, we can still find that RX5 is worthy of its price and people’s attention in chassis structure and materials.

　　RX5 adopts a frame-type front subframe, which can not only improve the overall strength of the front of the car body, but also make the force on the front of the car body more uniform.

　　RX5′ s two-wheel drive vehicle adopts a rear subframe similar to H-shape, and almost all the connecting rods on the rear suspension apply force to the rear subframe, thus reducing the direct impact of suspension on the vehicle body. The rear subframe of RX5 four-wheel drive vehicle is structurally different from that of two-wheel drive vehicle.

Second, the front suspension analysis

　　RX5′ s McPherson independent front suspension is really nothing too surprising. Indeed, for most cars under 200,000 yuan on the market, it is too ordinary to adopt McPherson front suspension. However, the details of the RX5 front suspension still have its own special features.

　　On the whole, the front suspension adjustment of RX5 tends to be comfortable, and the damping spring can filter out most small vibrations, but for some relatively large vibrations, the response of the spring is a bit stiff. Usually, the relatively large vibration will be directly transmitted to the car, which makes people somewhat unprepared. However, thanks to this adjustment, RX5 has a good performance in controlling roll.

Third, the rear suspension analysis

　　RX5 adopts E-type multi-link independent rear suspension, which is also quite common in the same class. This multi-link suspension adopts a vertical and three horizontal conventional structure, and most of the connecting rods are stamped from steel plates, and there is not much innovation in the arrangement of connecting rods.

　

This article comes from WeChat WeChat official account "national business daily".

Recently, social media such as friends circle were screened by a short film "Wukong".

The film tells the story that the hero, a little boy, loves the Monkey King since he was a child and wants to go to the cinema in the city to see "Make a scene in Heaven". The core of the film focuses on the juvenile spirit of "I don’t know much about heaven".

N+ Finance understands that although this short film did not directly reveal too much information about Huawei itself, it still caused a lot of interpretations, which is undoubtedly the expectation of HarmonyOS system and even Huawei.

Image source: Every photo by reporter Liu Ling

On May 21st, Yu Chengdong, CEO of Huawei’s consumer business, revealed:"As soon as this fall, at the latest next spring, Huawei’s own OS will probably be available.. "

In fact, the domestic mobile operating system has been tried by many manufacturers before. The giants include Baidu (BIDU.US) cloud OS and Tencent (00700)TOS, and the entrepreneurial team once had a little heart OS and Le Frog OS. And the most brilliant achievement belongs to Ali:

At the end of 2015,BABA.US) YunOS surpassed WP to become the third largest mobile operating system in China with a market share of 7.1%., second only to Android and iOS.

Now, times have changed, and Huawei HarmonyOS, burdened with the expectations of Chinese people, can make a scene like Wukong mentioned in the promotional film and fight its way out in the rivers and lakes of the mobile phone operating system?

In the short film Wukong, the little boy, obsessed with the Monkey King, is bent on going to see the Monkey King’s movie in the big city where "there is only one way to go over the back mountain and two more mountains, and it takes one night by car". He goes out alone, encounters a series of "adventures" and finally arrives at his destination in rags.

Some netizens commented that the spirit of the little boy and the spirit of Wukong are in the same strain, and the shadow can also be seen in Huawei.

Huawei officially released the film on May 23rd.

At the same time, Huawei announced that its "spare tire" had turned positive, and its self-developed Hisilicon chip and self-developed operating system "HarmonyOS" attracted much attention. This short film also triggered speculation about HarmonyOS system.

Huawei rarely makes statements to confirm or completely deny the rumors of HarmonyOS system. Ren Zhengfei, founder of Huawei, said in an interview with national business daily on May 21st:

“We can do the operating system, but it is not necessarily a substitute for others.Because we also need it in artificial intelligence and the Internet of Everything, but I don’t know exactly which ones are used and which ones aren’t. "

At the same time, he did not disclose whether HarmonyOS has been used in a small scale within Huawei.

Compared with Huawei’s low profile, "HarmonyOS" system keeps making new progress. On May 24th,The website of China National Intellectual Property Administration Trademark Office shows that Huawei has applied for the "Huawei HarmonyOS" trademark.. The application date is August 24, 2018, the registration announcement date is May 14, 2019, and the exclusive permission period is from May 14, 2019 to May 13, 2029.

Then, on May 29th, it was reported that a few days ago, Huawei submitted a trademark application for "HUAWEI ARK OS" to the European Intellectual Property Office, and "ARK" means "Ark" in English.

At the beginning of June, it was reported from the media that Huawei has started to test the mobile phones that will be equipped with HarmonyOS system, and the number of mobile phones in the test stage has reached one million. At the same time, Huawei also released the interface picture of HarmonyOS system, which is very similar to the current Huawei EMUI. The function arrangement, status bar, font layout and key color matching are almost identical.

On June 3rd, Huawei told N+ Finance that "we haven’t heard of it at all, so we can’t comment" on the rumor of testing HarmonyOS system on 1 million mobile phones.

It is understood that Huawei has been planning its own operating system "HarmonyOS" since 2012, aiming to become a substitute for Google’s Android system.

As for HarmonyOS, it is reported that the operating system has been greatly optimized for Linux (open source) and has been used in Huawei mobile phones (security part).

Combined with such news, Huawei’s HarmonyOS system comes to the fore. Tim Watkins, vice president of Huawei’s Western European market, has previously confirmed to the media that Huawei has been developing an operating system and will launch it soon.

Operating system is the soul of smart phone. As far as the current market is concerned, operating systems are mainly divided into two schools.They are Apple’s iOS system and Google’s Android system, which have a market share of 99%.

Since Apple’s iOS system is only for its own use and not open to other mobile phone manufacturers, Android system has become the only choice for many mobile phone manufacturers in China. Huawei’s EMUI system, Xiaomi’s MIUI system and vivo’s Fun touch OS system are all deeply developed based on Android system.

Wei Yongming, CEO of Feiman Software, wrote an article in 2012, "Why does Huawei Alibaba have to engage in an" independent "operating system? What is the soul of the operating system? ",the article said that taking Android as an example, the operating system open source license constraint is very loose, but:

"Google has certainly accumulated a large number of patents in the process of developing Android, especially Dalvik virtual machine and Java class library, and these patents are above the copyright and license of the software. In other words, if you derive a branch from the existing Android,If you want to sell the software running this derivative version of Android on your mobile phone, Google can immediately take out a patent stick to limit you."

According to Yu Chengdong’s description of HarmonyOS system, all Huawei mobile phones will be equipped with self-developed OS system in the future.Huawei’s self-developed operating system has opened up electronic devices such as mobile phones, computers, cars and tablets, and has been able to support a new software ecosystem for Huawei.

However, at present, the operating system has been occupied by Android and iOS. In order to occupy a place in Huawei’s HarmonyOS system, the first thing to be solved is the problem of software compatibility. After all, no company will adapt software for a system that is not used by many people.

In the research report "From Operating System to Chip-Counting is still stuck in the neck field (I)" released by China Merchants Securities in August 2018, it is pointed out that compared with foreign countries, the technical development of operating system is not a difficulty, nor is it a core factor restricting the development of domestic operating systems.

"The main reason why it can’t occupy a place in the market is that the domestic operating system lacks the ecological environment for high-quality applications."

At present, there are some doubts about the expansion of Huawei’s HarmonyOS system. Before Huawei’s "HarmonyOS", other domestic manufacturers tried to develop their own operating systems, but they didn’t really grow up in the end.

For example, Alibaba Yun OS once occupied 7% of the domestic mobile phone operating system market share from 2014 to 2015, which was also the "peak moment" of the domestic mobile phone system, but then the market share declined rapidly.

Yesterday, Xiang Ligang, the founder of Feixiang.com, expressed another view to N+ Finance. In his view,Huawei has shipped 200 million mobile phones this year, and Apple also has 200 million mobile phones. "Apple’s ecology can be done. Why can’t Huawei be an ecology?"

He said that the outside world’s doubts about Huawei HarmonyOS are mainly at two levels. First, many operating systems, including Windows, have not been done; Second, many people may not develop applications for Huawei systems.

Xiang Ligang said that Windows appeared earlier than Android, and then Android overtook it. The reason why it is not done well is becauseWindows is unfriendly to developers, with poor interface experience and poor interaction ability.

"Windows also charges mobile phone manufacturers, and of course it doesn’t do well. Huawei certainly does not have the problem of charging for its own use.Huawei’s understanding of the operating system has been very profound. And made a new compiler, which is compatible with Android applications.So it’s easy to build HarmonyOS, and I don’t think there is any problem. "

"Many people may not support Huawei’s application.But if Huawei sells hundreds of millions of mobile phones a year, why not apply it?If these applications are very difficult to do, then the current applications are Android, and they can be compatible by running the compiler once. "Xiang Ligang said.

Sun yanbiao, dean of the first mobile phone research institute, believes that the operating system mainly depends on the construction of ecology, and it takes time to build ecology. It took Apple four or five years to build its own ecology, and Android also took four or five years.Under the existing operating system, it will take two to three years for HarmonyOS to do it, and this time is inevitable.

"Why should Internet APP developers develop corresponding apps? This needs to be based on a large user base. What the new ecology often lacks most is the user group. Only by having a large user group can we make a profit, which is essentially a problem of Internet effect. In addition, the ecology that Huawei HarmonyOS needs to build is not only China, but also overseas, so it takes time. "

Sun Yanbiao emphasized that Huawei’s HarmonyOS system could not build a strong ecosystem in a short time, and the construction of this ecosystem was a slow process. "At that time, when Android was going to be an ecosystem, almost all mobile phones except Apple used Android’s operating system, but even in this case, it took almost four years for Android to sprout to rival Apple’s operating system."

Xiang Ligang also told reporters that after the release of the HarmonyOS system, it will change the market structure of global operating systems. HarmonyOS system appears after Android and Windows, and its understanding of operating systems is definitely deeper than that of Android.

"Huawei itself said that if you run it with a compiler, you can improve the efficiency by 60%. Android needs a virtualizer, and it doesn’t start the compiler from the bottom at all, while the HarmonyOS system starts compiling from the bottom, and the efficiency is definitely better than Android. " Xiang Ligang said.

In addition to Huawei, new news has also come from the operating system field.

On May 25th, the media revealed that KaiOS Technologies, the manufacturer of the third largest mobile phone operating system in the world, had received a $50 million financing in Series B..

In addition, ZTE is also developing a mobile phone operating system based on independent intellectual property rights. The industry believes that the operating system may show a diversified trend and is expected to usher in a new round of competition.

The latest news is that on May 31st, it was reported that Mate 20 Pro, which was previously removed by Google, was back, and it continued to support the latest Android Q Beta.

Earlier, Google’s parent company Alphabet announced that it would stop some cooperation with Huawei and erase the name of Huawei Mate 20 Pro on the Android Q Beta page.

Practical, affordable and comfortable are the characteristics of mainstream models. Take a closer look, they are the ones who run more on the road. What I bring to you today is that it has many highlights. Next, let’s see if its highlights can attract you with Xiaobian.

Let’s look at the appearance of Fengyun T9 first. Fengyun T9 front style looks very full of personality and looks softer. Coupled with dynamic and lively headlights, the visual impact is full. The car is equipped with LED daytime running lights, automatic opening and closing, adaptive far and near light, delayed closing and so on. Coming to the side of the car, the body size of the car is 4795 mm * 1930 mm * 1741 mm. The car adopts fashionable and simple lines, and the side circumference gives people a very delicate feeling. With large-sized thick-walled tires, the overall visual effect is very cool. In the design of the rear end, the rear end looks simple and fashionable, the taillights look very elegant, and the overall layout is impressive.

When you get into the car, Fengyun T9′ s interior is exquisite and has a high degree of overall recognition. The steering wheel of the car is very in line with the interior style, and it is made of genuine leather, which makes people love it. Take a look at the central control. The car is decorated with a young touch-sensitive LCD central control screen, which makes the interior style impressive and fashionable. The interior feels good. Let’s take a look at the dashboard and seats. The dashboard design is remarkable and eye-catching. The car uses leather seats, equipped with auxiliary seat electric adjustment, seat with memory electric adjustment, seat proportion down and other functions, and it is basically enough for daily use.

Equipped with car networking, driving mode selection, remote control key, Bluetooth key, rear wiper, interior atmosphere light and other configurations, it has rich functions, greatly improving its convenience.

To sum up, the car introduced today not only shows eye-catching performance in space, but also reaches the mainstream level in various configurations, and there is nothing to be picky about driving experience and space experience.

Geely’s 2025 Xingyue L Dongfang Yao will be launched on October 27th. The new car is suspected to be exposed, and both models are equipped with 2.0T high-power engines. According to the sales, the pre-sale of the two-wheel drive version is 158,000, and the pre-sale of the four-wheel drive version is 168,000.

The 2025 Xingyue L is equipped with a new style straight waterfall grille+silver brand LOGO, adding a white interior, canceling the physical buttons below the central control screen, and moving the wireless charging board to the front of the armrest box; Upgrade headrest audio, seat massage, two-row electric seats, CDC variable damping suspension.

The 2025 Xingyue L is equipped with a 2.0T high-power engine, with a maximum power of 175kW and a peak torque of 350N·m, matching an 8-speed automatic manual transmission. The comprehensive fuel consumption per 100 kilometers of two-wheel drive and four-wheel drive models is 7.79L and 8.59L respectively.

Chery Fengyun T9 is about to open for pre-sale on April 18th. With its plug-in hybrid system, avant-garde design and luxurious interior configuration, this medium-sized SUV has attracted the attention of many consumers.

In terms of appearance design, Chery Fengyun T9 cancels the traditional net design and adopts a full-bodied closed front grille with semi-circular chrome decoration, creating a strong sense of future science and technology. Vents arranged vertically on both sides and narrow and sharp headlights make the front face tougher and give people a strong visual impact.

On the side of the car body, the new car adopts a two-color design, the color of the roof and the car body is different, and at the same time, it is equipped with a retractable hidden door handle, showing a sense of fashion. The style of large-size rims is similar to that of Tiggo 9, which further enhances the sporty atmosphere of the whole vehicle.

In the rear part, the new car is equipped with a spoiler, and a through taillight group design is adopted, and the Chery LOGO is placed in the center to show the brand identity. The rear enclosure creates a hidden exhaust effect with rich lines, which makes the whole vehicle more spacious visually.

Entering the car, the interior design of Chery Fengyun T9 is equally amazing. The blue-and-white color matching design with large-area wood grain decoration not only shows the clean energy power, but also creates a warm and comfortable atmosphere. The dual screen design of the full LCD instrument connected with the central control multimedia display screen not only enhances the sense of science and technology, but also makes the driving information more intuitive and readable.

In terms of power, the new car is equipped with a full-scene intelligent four-wheel drive system and a C-DM plug-in hybrid system. The acceleration time of 0-100km/h is only 4.26 seconds, and the performance is strong. At the same time, the comprehensive cruising range of the new car exceeds 1400km, the pure electric cruising range can reach 165km, and the fuel consumption is only 4.2L/100km, showing excellent energy-saving performance.

In addition, Chery Fengyun T9 is equipped with many intelligent technology configurations, such as Qualcomm Snapdragon 8155 chip, 5G Gigabit network, SONY audio system, etc., which provides drivers with a more convenient and comfortable driving experience.

　　　Gearbox is an important part of automobile power. Nowadays, various automatic gearboxes can be seen everywhere in the market. Different automatic gearboxes have different performance and quality. What are the disadvantages and advantages of these automatic gearboxes? Here are some common automatic gearboxes for everyone.

　　Automatic gearbox type

　　AT present, there are three common automatic gearboxes: AT (hydraulic automatic gearbox), CVT (continuously variable automatic gearbox) and D (dual clutch gearbox).

　　First, AT— automatic transmission

　　AT is to use a hydraulic torque converter instead of the dry clutch in the traditional manual gearbox to transmit the power of the engine to the planetary gear mechanism, and realize automatic gear shifting through the electronic control system. AT the same time, the AT gearbox is not as many gears as possible. Because the structure of its planetary gear mechanism is very complicated, adding one more gear will greatly improve its structural complexity, gearbox volume and R&D and manufacturing cost. Of course, there is another problem, that is, the more complicated the structure, the lower the mechanical reliability.

　　Advantages of AT automatic gearbox

　　1. AT gearbox is the most widely used gearbox in the market today, and its mature mechanical structure has been developed and carried forward by many manufacturers.

　　2. The traditional hydraulic automatic transmission adopts hydraulic torque converter (or hydraulic coupler, multi-disc clutch, etc.), which can cushion the power impact of the engine and match the mechanical combination of planetary gears with stable performance. The torque it can withstand is also very high.

　　Disadvantages of AT automatic gearbox

　　1. The AT gearbox needs more mechanical parts, which makes the overall weight larger and the manufacturing cost higher than other gearboxes.

　　2. Because the engine power needs to be transmitted to the gear set through the hydraulic torque converter (or multiple clutches, etc.), part of the engine power will be consumed in vain, so compared with the manual gearbox (including CVT gearbox), the AT gearbox will consume more oil.

　　The fixed gear set used in 3AT gearbox makes the vehicle stumble and make noise when shifting gears. Although the shift impact is greatly optimized with the development of technology, the AT gearbox is still not very smooth in theory.

　　Second, DCT— Double clutch automatic gearbox

　　DCT is actually a general term, such as G and powersht, which are all powershift. They are similar. powershift has fast gear shifting, high fuel economy and can bear large torque. Now it has been widely used in the automobile field. Its transmission mechanism is the same as that of the traditional manual gearbox, but because the two groups of clutches operate independently and alternately, it can almost achieve CVT-like power output. This kind of gearbox has two branches: dry dual-clutch gearbox and wet dual-clutch gearbox. The difference is that dry DCT is. The two sets of clutch plates of wet DCT are in a sealed oil tank, which absorbs heat through the transmission oil soaked with clutch plates.

　　Advantages of DCT automatic gearbox

　　1. The transmission efficiency is high, the power loss is small, and the fuel economy is relatively best.

　　2. The shift response is fast, and the shift smoothness is only slightly inferior to CVT.

　　3. Because its transmission structure is the same as that of manual gearbox, it has the highest bearing capacity.

Eight-year-old Liang Liang got a new cigarette card, and he sniffed the residual smell of tobacco excitedly. This card became a new "general" in his cigarette card collection. Recently, a game called "Cigarette Card Shooting" has quietly sprung up in primary schools all over the country. Children use cards folded from discarded cigarette cases to play against each other, and the winners can get each other’s cards. Among them, cigarette cards of high-end cigarette brands are more popular, which has spawned a "trading market" among children.

Parents found that children’s obsession with cigarette collecting cards was beyond imagination. Some children even look for discarded cigarette cases from parents who smoke or in trash cans to increase their "collection". At the same time, a large number of information about selling cigarette cards appeared on the e-commerce platform, with different prices ranging from a few yuan to a few cents. Some merchants claimed that the cigarette cards they sold were genuine, although the source was unknown, but they emphasized that they had been disinfected and met the safety standards required by parents.

However, this cigarette card craze has aroused social concern and concern. Many market supervision departments and educational institutions have initiated initiatives to prohibit students from participating in the "cigarette card" game, pointing out its potential harm to the physical and mental health of minors. Legal experts pointed out that selling tobacco cards to minors violates the Law on the Protection of Minors and the Advertising Law, which may not only induce minors to contact tobacco advertisements, but also infringe on the exclusive right to use registered trademarks. All walks of life are called upon to work together to create a smoke-free environment and protect young people from the temptation of tobacco.

In view of this phenomenon, some experts suggest developing healthy card games suitable for teenagers to guide children’s interest in a positive way, instead of cigarette card games that may have adverse effects.

　First, the development of basic Internet activities

　(A) basic information Internet applications

E-mail is one of the earliest Internet services, which plays an important role in information communication, and is also a widely accepted and low-cost Internet marketing channel for enterprises. As of December 2015, 89.0% of enterprises connected to the Internet have used the Internet to send and receive emails in the past year, and 62.1% of them have corporate mailboxes.

In addition, 71.9%, 67.2% and 58.3% of online enterprises have carried out basic information activities such as learning about goods or services, publishing information or instant messages, and obtaining information from government agencies.

　(B) Basic internal support Internet applications

Internet plays an important supporting role in the internal management of enterprises: 83.0% online enterprises assist financial work through online banking; 79.3% of online enterprises interact with government agencies and do things online, and the high utilization rate reflects the fruitful results of e-government construction; 57.4% of online companies are engaged in online recruitment. In addition to traditional ways such as posting recruitment information on recruitment websites and official website, social platforms and instant messaging tools have also become new channels, and 28.1% of online companies use the Internet to carry out employee training.

　(3) Basic network security protection measures

By December 2015, 91.4% of enterprises had installed antivirus software and firewall software, and more than 1/4 of them paid for it. According to the survey results, enterprises in China have basic awareness of network security protection.

　Second, the grassroots Internet full-time job setting

As of December 2015, 34.0% of enterprises have set up full-time Internet posts at the grassroots level, among which the proportion of micro-enterprises with 7 employees or less is the lowest, accounting for 30.2%, and the proportion of enterprises with 300 employees or above setting up special posts is close to 40%. At present, it is difficult for small and medium-sized enterprises to set up special posts. However, with the gradual improvement of Internet software and hardware configuration and the increasingly extensive and in-depth development of Internet activities, the demand for talents with professional operation and maintenance, R&D and commercial operation skills will surge.

In terms of industries, the proportion of special posts in industry and service industry is 28.5% and 38.0% respectively, with a difference of nearly 10 percentage points. Among them, the manufacturing industry is lower than the whole industry, and the wholesale and retail catering industry is lower than the whole service industry. It is an urgent problem to improve the attention paid by enterprises to grassroots professionals in order to realize "intelligent manufacturing" and develop modern service industry closely related to people’s livelihood.

[car home Bozhou Preferential Promotion Channel] Recently, the Bozhou market ushered in a heavy discount, with a maximum price reduction of 180,000 yuan, making the minimum starting price of this luxury electric car as low as 298,000 yuan. Consumers can seize the opportunity to click "Check the car price" in the quotation form and strive for higher discounts.

The front face design of Mercedes-Benz EQE adopts a family-owned "night star array" closed air intake grille, with long and narrow LED headlights on both sides, creating a unique sense of science and technology. The overall style is simple and smooth, the body lines are elegant and dynamic, and the streamlined roof and rear design complement each other, showing the noble temperament of Mercedes-Benz EQE.

Mercedes-Benz EQE has a body length of 4969mm, a body width of 1906mm and a body height of 1,514 mm. The body lines are smooth and dynamic, with a wheelbase of 3120mm, a front track of 1639mm and a rear track of 1650mm, which provides spacious seating space for passengers in the car. Tyre size is 235/50 R19, with fashionable rim design, which not only enhances the sense of movement of the vehicle, but also enhances the handling performance and stability of the vehicle.

Mercedes-Benz EQE’s interior style is elegant and scientific, with a large area of leather wrapping and exquisite stitching technology, creating a luxurious and comfortable space atmosphere. The steering wheel is made of genuine leather, and has electric up-and-down and forward-and-backward adjustment functions to ensure that the driver finds the most comfortable grip position. The center console is equipped with a 12.8-inch high-definition touch screen, which supports voice recognition control of multimedia system, navigation, telephone, air conditioner and skylight, bringing convenient operation experience. The seat is made of imitation leather, and the main and auxiliary seats have multi-directional adjustment functions, including front and rear adjustment, backrest adjustment, height adjustment, leg rest adjustment and lumbar support, to ensure the comfort of passengers for a long time. In addition, the front seats are equipped with heating and ventilation functions to provide more intimate care for passengers. The car is also equipped with multiple Type-C interfaces and USB interfaces, as well as mobile phone wireless charging function to meet the charging needs of modern technology equipment.

Mercedes-Benz EQE is equipped with a high-performance motor with a maximum power of 215kW and a maximum torque of 556 N m.. This power output provides the vehicle with strong acceleration performance and excellent driving experience.

The owner of car home said that although the price of the car was a little high and exceeded the budget, he thought that the performance of the car was satisfactory in all aspects. Luxury in appearance, good internal comfort, high configuration, good car life, low energy consumption and cost performance.

Beijing News (Reporter Wu Tingting) With the arrival of the return peak, airlines not only do a daily "physical examination" for their planes, but also increase the replacement frequency of the "air purifier"-high efficiency particulate air filter (hereinafter referred to as "air filter") during the epidemic prevention and control period, which is like putting a mask on the plane. The reporter learned that at present, almost every plane returned from the epidemic-prone area of various airlines needs to replace the air filter immediately to ensure the clean air in the cabin.

　

The frequency of air filtration for aircraft replacement is accelerated.

On February 3, the Civil Aviation Administration of China issued a notice, which made a number of requirements for epidemic prevention and control during the return trip. Among them, it was clearly proposed to clean the air conditioning system of the aircraft and increase the frequency of inspection and replacement of high-efficiency particulate air filters. In layman’s terms, HEPA is like an air purifier for home use, but this "air purifier" on the plane is more powerful than domestic equipment.

　

The relevant person in charge of China Southern Airlines said that this kind of air filtration on the plane can block the passage of 99.97% bacteria and virus particles, and the new filter material also has disinfection and sterilization functions. Sheng Liyao, director of the Fourth Workshop of Airbus Route Department of Hongqiao Maintenance Base of China Eastern Airlines Technology Company, introduced that the air in the aircraft cabin comes from two parts, one is fresh air, and the other is recycled cabin air, so the high-efficiency particulate air filtration can keep the air in the cabin fresh and clean.

　

Although the aircraft air filtration function is powerful, it still cannot be taken lightly in the face of epidemic prevention and control. Sheng Liyao said that since New Year’s Eve, all the planes of China Eastern Airlines flying to epidemic-prone areas and transporting medical staff to Wuhan and other places need to be replaced. Only today, in Hongqiao Airport, Sheng Lihao replaced the air filters for seven Airbus aircraft of China Eastern Airlines. "This does not include Pudong Airport and Boeing aircraft with air filters."

　

Liu Liwei, the relevant person in charge of the epidemic prevention and control office of China United Airlines, said that all the flights of the company returning to Beijing from the epidemic-prone areas will be replaced in time. "It used to be replaced regularly, but now it is changed when it flies back."

　

The relevant person in charge of China Southern Airlines also said that the cabin recirculation system of China Southern Airlines fleet is equipped with high-efficiency particulate air filter, and it is regularly replaced. The current effective measures are enough to ensure the air freshness and cleanliness of the recirculation system.

The crew members wear protective clothing to change the air filter. Photo courtesy of China Southern Airlines

The crew put on protective clothing to ventilate the plane.

　

Sheng Linghao told reporters that taking the Airbus model as an example, the Airbus 320 model has two air filters and the Airbus 330 model has eight air filters. With the increase of the frequency of replacing the air filter, the work intensity of the crew is also increasing, and in this special period, the crew also needs to wear protective clothing and goggles to replace the air filter for the aircraft.

　

On January 28th, Wu Yan, the release officer of China Eastern Airlines Technology Sichuan Branch, volunteered to disinfect three planes in depth and replace the air filter for the recirculation fan of the air conditioning system. Because of the special situation of the aircraft, it is necessary to minimize the impurities left in the air on the air filter, and the crew must be more cautious and careful.

　

Wu Mi recalled that he and Feng Zhang, the maintenance personnel, had carefully prepared for technical disposal and had in-depth exchanges with epidemic prevention personnel. Subsequently, they put on protective clothing, protective glasses, masks and gloves, and began to replace the air filter. The cargo hold of Boeing 737 is relatively closed, stuffy and unventilated, and the space is narrow, so it can only squat on the floor when working. When replacing the air filter, in order to make the impurities on the air filter not remain in the air as much as possible, they dared not be careless, and assembled and disassembled it more carefully and cautiously. With full preparation and superb technical ability, the work was completed one hour ahead of schedule.

　

The reporter also learned from China Southern Airlines that during the epidemic prevention and control period, all the crew members put on protective clothing to replace the air filter.

The staff disinfected the cabin. Photo courtesy of China Southern Airlines

The cabin is completely disinfected without leaving any dead ends.

　

In view of the return peak, the Civil Aviation Administration proposed to increase the frequency of deep cleaning and disinfection of aircraft cabins and cockpits. The reporter learned from many airlines, such as China Eastern Airlines, China Southern Airlines, Air China and China United Airlines, that all companies have formulated cabin disinfection plans. Take China United Airlines as an example. At present, the company has 52 flights at Daxing Airport. After disembarking on each flight segment, the flight attendants will disinfect the cabin models. In addition, China United Airlines also hired a professional company to deeply disinfect the aircraft, and has already deeply disinfected all flights. Liu Liwei introduced that because the cockpit is very important, the disinfection here is done by the crew.

　

During the epidemic period, the fleet of China Southern Airlines increased the frequency of disinfection and clarified the disinfection standards. The disinfection scope was stipulated in the plan, including aircraft cabin space, toilets, garbage rooms, etc., and detailed provisions were made in terms of disinfection personnel, medicines, equipment, protective articles, disinfection methods and procedures.

　

Air China’s fleet has also increased the frequency of disinfection. In the post-flight cleaning operation of each aircraft, preventive disinfection is carried out for every place that passengers and crew can touch, including cockpit, cabin small table board, seat armrest, porthole sun visor, luggage rack and toilet. In view of the fever passengers on the plane or the flight carrying out the emergency charter mission to Wuhan, after receiving the notice, the epidemic prevention personnel of Air China immediately boarded the plane to carry out atomization emergency disinfection of the cabin environment.

Beijing News reporter Wu Tingting

Editor Li Guojun proofreads Li Xiangling.