The beautiful witness of Nana and Jason’s Shangri-La wedding on 26th is full of romance.


Nana and Jason got married.


Nana and Jason kissed.


Nana shed tears and Jason wiped it carefully.


Happy to throw the bride’s bouquet, and everyone fights for it.


Many relatives and friends witnessed the happy moment.


After the wedding ceremony, the two joined hands to plant trees, greening and protecting the environment.

    Jason and Nana got married in Pudacuo Park, 22km away from Shangri-La County, Yunnan on September 26th. At 9 am on 26th, the wedding of Jason and Nana was officially staged. The guests released the live broadcast of the wedding in Weibo, and a couple of newlyweds, groomsmen and bridesmaids from Jason and Nana were exposed one after another.

Wedding scene:

    At the wedding scene, Jason and Nana couldn’t help crying when they read the wedding vows. Jason knelt down to propose marriage and took an affectionate oath. Nana said that Jason once said, "I will marry you when I earn 200,000 yuan!" Just because this sentence fell in love with Jason, Nana said, "Thank you, Mr. Zhang, I will try my best to be your good wife and love you all my life!" Their declaration of love infected all the guests present. Zhao Benshan entrusted Little Shenyang to send a picture of "love is like oxygen", and Gacuo Living Buddha said that "this is heaven". Ou Tai was the witness of today’s wedding. He said, "Shangri-La is the closest place to heaven, the most beautiful place, and the first place to see the sun. This is also the most sacred place. " Both sides have prepared surprises for each other. Nana said that the first time she saw Xiaojie was in KTV. He sang a song Better Man. Nana laughed at her poor English and mistakenly thought it was Bad Man. On-site Nana specially put a self-singing version for Jason. This is also the first time that she sang English songs in public. Jason: "I sang beautifully with your feet, and my heart was drunk."


Wedding host He Jiong was present.


He Jiong Weibo exposure wedding cake

Wedding guests:

   Friends and relatives invited by the couple, such as Li Weijia, Hans Zhang, Wang Han and Nicky Wu, came to Shangri-La one after another, and Nana’s father personally greeted them to show his gratitude. These friends said that they all prepared mysterious gifts and thanked Dad for smiling from ear to ear. At the wedding ceremony, Yang Lele, Xiao Shenyang, Chris Lee, Ahu、Yue, Land Rover, He Jiong, A Duo, Ceng Baoyi, Dazuo, Iola, Alec Su and other stars appeared in succession. He Jiong, the wedding master of ceremonies, said in Weibo, "I am an incompetent master of ceremonies, and I can hardly cry. Pop the wedding cake! "

On the eve of the wedding:

    The two newcomers who arrived in Yunnan on the 23rd were very busy preparing for the wedding, and their nervousness was beyond words. On 24th, Jason specially arranged to take Nana to the famous temples and the ancient city of Shangri-La to pray for their upcoming new life. The low-key appearances of Jason and Nana still attract the attention of many tourists. According to tourists, the couple’s eyes are filled with happiness and envy of others. In the meantime, Nana was attracted by the beautiful scenery, playing in the woods hand in hand with Jason, and Jason improvised a song for Nana, hoping that the place closest to heaven would remain between them forever. On the evening of 24th, we also booked a box of a Tibetan restaurant in the ancient city, with two tables, to taste Tibetan food with relatives and friends who arrived in advance and feel the local characteristics.


Wedding scene


Wedding dress backboard


Guest seats

Wedding scene:

    On 24th, Jason and Nana will hold their wedding ceremony in Pudacuo National Forest Park in Diqing on 26th. A long arch, more than a dozen Tibetan colored tents of different sizes, and a wedding ceremony viewing shed about 80 meters long and 60 meters wide were built on site. Nana and Jason’s wedding dinner venue is Zhaxidele Hotel, and all the dishes are vegetarian. The dinner stage should be lit with 120 kilowatts, and the effect is comparable to that of a concert. The venue of about 300 square meters will be turned into a tent effect with ethnic customs, and there will be about 20 tables for the banquet. There will be a special surprise at the wedding banquet. At the wedding banquet, the exquisite dishes on the chairman’s table have been prepared, and the main carving "Dragon and Phoenix" has been completed. At the wedding banquet, there are 10 cold dishes and 12 hot dishes, and most of the dishes are related to "Najie", such as Huifeng Nayun, Haina Baichuan, Zhang Dengjie Cai, and Na Zhang Marriage Certificate. Just listening to the names is very interesting.


Wedding dress shengjie  [Watch wedding video]


Jason and Nana wedding photos.
 

The Perfect Blue

Wedding dress exposure:

    The much-anticipated bride’s wedding dress has been exposed in front of everyone. On the 26th wedding, Nana will shine in a full diamond wedding dress. In order to make his sweet partner become the most beautiful and holy bride in the world, Jason communicated with the wedding designer Lan Yu many times in the early stage of wedding design. For him, Nana is like an angel, beautiful, elf, kind and pleasant, and does not allow any hasty treatment.


Nana and Jason attended the rehearsal.

Wedding rehearsal:

    On 25th, Jason and Nana attended the wedding rehearsal in Shangri-La. Jason appeared in the shape of black sunglasses, while Xie Na wore a black blouse with a red skirt and a pair of black and white leggings. They walked the red carpet hand in hand in advance, and Nana’s parents also appeared at the rehearsal. Jason sang the title song of the new album "The Closest Place to Heaven" live. During the rehearsal of the wedding, both roads were closed to tourists. When a couple left the scene by car, they warmly greeted the media who had been waiting for a long time.

Love review:

    From rumors to firm hand-in-hand, the relationship between Jason and Nana has always attracted people’s attention. Today, the two married sweetly on the 26th, which makes people envy. Looking back, those happy moments between them became the most beautiful poems. Finally, let’s review the four-year emotional course of Jason and Nana … …

More wonderful pictures on the next page

Taiwan Province’s future and destiny have reached a new crossroads.

  During the festive season, a bright moon shines on the home country. Apart from the reunion of small families, there is always a place to think of — — Taiwan Province.

  In the last month, an important change has also taken place in Taiwan Province.

  Since September, the popularity of the word "development" on the network platform in Taiwan Province has been rising, and now it has surpassed "war", which is a trend that Democratic Progressive Party authorities have never had during their administration in the past few years.

  With the approaching of the Taiwan Province regional leaders’ election next year, people in Taiwan Province have some anxiety:

  Problems such as "seven shortages and eight rises" are getting worse. What about rice, oil and salt? Infrastructure has been invested for so many years, but it has hardly changed. What about long-term development? Apart from TSMC, where is Taiwan Province’s next innovation?

  The general direction of the future and destiny of Taiwan Province compatriots is clear, that is, we must develop peacefully, but how can we develop peacefully?

  Now, I came to the crossroads.

  At the beginning of September, Lai Qingde, deputy leader of Taiwan Province, officially held a press conference as a candidate for Democratic Progressive Party for the first time, expounding the so-called path of "realizing peaceful development":

  Only by preparing for war can we avoid war, and only by avoiding war can we develop peacefully.

  This is also the development path that the Democratic Progressive Party authorities are following: bundling armament with development, giving priority to armament before development.

  The 2024 Budget passed by the Democratic Progressive Party authorities not long ago is very telling. Among all kinds of expenditures, defense expenditure continues to grow, but economic development expenditure is the biggest decline in all fields.

  With the increase of defense expenditure, the military ties between Democratic Progressive Party authorities and the United States also have new trends.

  The new way in which the United States provides weapons to Taiwan Province is noteworthy.

  Some time ago, the United States approved aid to the Taiwan military. Compared with previous arms sales, military aid directly picked up goods from the US military inventory for the first time, which can avoid the process of waiting for production.

  The signal of the release of military aid is clear, that is to accelerate the arming of Taiwan Province.

  An American C-130 transport plane recently photographed at Taipei Songshan Airport.

  In addition, the United States is constantly increasing its arms sales to Taiwan, and this way of interaction is to sacrifice the development cost of Taiwan Province.

  Democratic Progressive Party authorities have to borrow money to buy new fighters. In order to match these new capabilities, the Democratic Progressive Party authorities are still relaxing the recruitment standards and sending more Taiwan Province people to the battlefield.

  Therefore, there is a scam in the sentence "preparing for war can lead to peaceful development":

  The extent to which the Democratic Progressive Party authorities tilt social resources such as people, property and so on to the military has greatly eroded the development space of Taiwan Province.

  The financial situation of the Democratic Progressive Party administration in the past seven years is that the defense expenditure keeps increasing, but the economic development expenditure has hardly changed.

  Giving priority to armaments will inevitably weaken the economic development potential of a region. If a region is in danger of becoming a "powder keg", all kinds of investments will leave voluntarily and economic development will fall into a long-term stagnation.

  This will certainly make Taiwan Province people feel anxious. How can we develop in the future?

  What is even more worrying is that the Democratic Progressive Party authorities have failed to manage even the most basic livelihood security.

  Take the recent problem of "lack of eggs". In order to get through the crisis of "lack of eggs" as soon as possible, Democratic Progressive Party authorities gave high subsidies to import a large number of eggs, but it brought huge cost pressure to farmers in Taiwan Province, which led them to be forced to kill their own laying hens in Taiwan Province. Later, these imported eggs were found to have a substance, and its high concentration may lead to hematologic cancer.

  The attitude towards shells and eggs reflects the underlying development logic of Democratic Progressive Party authorities, which obviously cannot effectively respond to Taiwan Province people’s anxiety about future development.

  Apart from the development path tied to a powder keg, what choice does Taiwan Province have in the future?

  In the recent discussion, there is a place name that appears frequently, Golden Gate.

  Why is this? You can look at a picture first.

  This is a luminous remote sensing map around Fujian. As you can see, when Xiamen was lit, Jinmen was dark. At the same time, the development of Kinmen also has a feature, that is, it is brighter near the mainland.

  This has a lot to do with China Unicom. Take the "mini three links" as an example, that is, small-scale trade, navigation and postal services between the mainland and Kinmen.

  The "mini-three links" gave Jinmen the opportunity to develop tourism, which is also the origin of the light spot close to the mainland.

  However, Tsai Ing-Wen, the leader of Taiwan Province region, expressed doubts about the "mini three links" from the very beginning.

  Dong Zhisen, a media person from Taiwan Province who was born in Kinmen, revealed that it was Wu Chengdian, the deputy magistrate of kinmen county, and others who really rushed for the "mini three links". At that time, Tsai Ing-Wen, who was still working for the Mainland Affairs Council, called them to the office, criticized them for violating the "National Security Law" and said that they would be arrested and put in prison.

  More than 60 years ago, Kinmen was the forefront of cross-strait confrontation. In times of peace, however, the Democratic Progressive Party authorities have been sacrificing the development prospects of Kinmen with words such as "national security", and the "mini three links" have always been shrouded in the narrative of "security".

  If the "mini-three links" are blocked and mainland tourists to Kinmen go to zero, the loss of tourism in the upstream and downstream of Kinmen will reach several billion NT dollars a year. The development logic of Kinmen is very fragile, and such a situation has appeared in reality.

  This has led to a relatively flat development of tourism in Kinmen.

  Today, Kinmen’s main tourist products are still: kinmen kaoliang liquor, dried meat, peanut candy and other primary products. In other words, Jinmen has not found a foothold for upgrading its business format because of the development of tourism.

  Recently, the mainland issued "Opinions of the Central Committee of the Communist Party of China and the State Council on Supporting Fujian to Explore a New Road for Cross-Strait Integration and Development and Build a Demonstration Zone for Cross-Strait Integration and Development", which mentioned the integration of Kinmen and China Unicom, which exposed the development contradiction accumulated by Kinmen for so many years in public view. Such attention and discussion can also explain Taiwan Province’s anxiety about the future from one side.

  In the division of Taiwan Province authorities, Kinmen belongs to outlying islands, that is, far away from the main island of Taiwan Province. Over the past decades, Taiwan Province’s construction and development, job opportunities and resources have been concentrated in the metropolis of the island. To some extent, the closer to the mainland, the deeper the so-called "security" overrides development.

  However, the development of Taiwan Province Island cannot be "immune".

  Today, looking at the whole of Taiwan Province, the chip industry is indeed a star industry. However, today, TSMC is also deeply bound by the narrative of "security". At the same time, for Taiwan Province people, star enterprises have obvious siphon effect, and the lives of most ordinary people cannot be improved only by individual advantageous industries.

  In response to such a problem, the Opinions put forward a new solution: creating new industrial opportunities through the flow of personnel.

  What are the new industrial opportunities?

  Fei Li, director of the Hong Kong, Macao and Taiwan Research Center of Xiamen University, mentioned a category of areas,The service field of production, that is, the service industry that serves production.Because the service industry is not fighting for capital, technology and scale, it is fighting for business philosophy and management mode, which are closely related to "people".

  Taiwan Province has a unique combination with the mainland in the field of production-oriented services.

  According to the "Opinions", Kinmen can be a sample. First, residents of Kinmen should enjoy the same treatment as local residents in Xiamen. Fei Li pointed out that,A change revealed behind this is that in the past, we sent resources to the past, but now we are bringing Taiwan Province people here, and the degree of cross-strait integration will be even higher.

  Enlarge your vision to the whole of Taiwan Province, and say that the foundation of Taiwan Province’s future development lies in the mainland. What is your confidence?

  The Opinions mentioned above also mentioned the fulcrum connecting the mainland with Taiwan Province, the nearest place to Taiwan Province, Fujian.

  Tan Zhu noticed that after the publication of the Opinions, the Democratic Progressive Party authorities made a statement to discredit the mainland, saying that Fujian was not attractive to Taiwan Province economically, and that it was a "jumping pit" for Taiwan compatriots and enterprises to go to the mainland. Is this really the case?

  In 2019, the total GDP of Fujian surpassed that of Taiwan Province for the first time. In 2022, Fujian’s GDP and growth rate exceeded that of Taiwan Province.

  Last year, the growth of added value of industrial enterprises above designated size in Fujian ranked first in the eastern region of China, among which the electronic information industry was a focus, which was in line with the accumulation of advantages of the semiconductor industry in Taiwan Province.

  Take Xiamen for example. First of all, in terms of industrial structure, Taiwan Province’s traditional advantage lies in technology-intensive industries, while Xiamen lies in the field of basic scientific research. On the issue of how to transform and apply technology, Xiamen and Taiwan Province have significant gradients and can complement each other.

  In fact, UMC, the second largest wafer foundry in Taiwan Province, has been investing in Xiamen. In 2014, UMC cooperated with Xiamen Municipal Government to invest in the establishment of a 12-inch wafer fab. From 2020 to 2022, UMC increased its capital several times, each time it was over 100 million yuan.

  It is the development and progress of the mainland that makes Fujian and Taiwan Province have the space for economic complementarity.

  In addition to the consideration of economic structure, there is another detail worthy of attention, that is, the industrial culture similar to that of mainland China and Taiwan Province.

  This is also a very different point between the mainland and the United States. From the planning to the start of TSMC’s American factory, the production time was postponed due to labor relations, and Taiwan Province engineers were not acclimatized. There is a root problem behind them, that is, cultural conflict.

  Today, Xiamen IC Industrial Park covers the whole chain from design, manufacturing, packaging and testing, equipment and materials to application, which in turn enables the vertical fields of upstream and downstream industrial chains to be integrated and industrial agglomeration can be realized.

  Complementarity in industry is only a cut surface. The combination of Taiwan Province and the mainland is not limited to a certain enterprise or an industry, but lies in finding a development path.

  Taiwan Province is an export-oriented economy, and Taiwan Province is now facing a dilemma: its economic lifeline — — Foreign trade continues to be sluggish.

  In recent years, Taiwan Province’s exports have been declining continuously, and the export volume in June was the biggest decline in the past 14 years. What the Democratic Progressive Party authorities are doing now, and the United States taking sides, is not the solution to resist these factors.

  The reason is simple. The United States has no intention of opening its market to Taiwan Province at all. Since the fourth quarter of 2022, the import proportion of the United States from many regions has been rising, but Taiwan Province is not one of them.

  Master Tan learned that from January to April this year, Taiwan Province’s exports to the United States have been declining year-on-year.

  From the perspective of bilateral trade, the connection between the mainland and Taiwan Province is more "integrated". In this regard, we can see a detail mentioned by the National Development and Reform Commission when talking about the Opinions:

  We will promote more goods from Taiwan Province to reach the Eurasian market by China-Europe trains, so as to better benefit compatriots on both sides of the strait.

  In April this year, the mainland proposed "Europe — — Wuhan — — Compared with the traditional sea transportation, the transportation time of China-Europe trains is reduced by 1/3, which can be shortened to 30 days.

  In addition to the improvement of transportation efficiency, the greater value of China-Europe trains lies in providing Taiwan Province with a stable path to connect the Asian and European markets.

  Fei Li mentioned that,The change of global traffic pattern is changing the global trade pattern. The countries along the Central European train are all between 30 and 40 degrees north latitude, which is a world civilization.place of originIf the factors of production in this area flow and operate with higher efficiency than the marine circulation, that is the new development direction. If Taiwan Province can be integrated, it can certainly gain more opportunities.

  What the mainland has provided to Taiwan Province is a development system, which Taiwan Province lacks.

  The future and destiny of Taiwan Province’s connection with the mainland is very clear. Taiwan Province’s economic development has a strategic basis, that is, it is backed by the mainland and connected to a larger Asian-European market, which is the same as any of our provinces’ "going out".

  Pingtan Strait Railway Bridge is the first cross-sea bridge with both highway and railway in China, and it is also the preliminary project of Beijing-Taiwan high-speed railway in the 13th Five-Year Plan.

  After more than 70 years of isolation between the two sides of the Taiwan Strait, this connection has been constantly disturbed under the interference of the "Taiwan independence" separatist forces, which is a realistic problem between the two sides. However, from the recent economic and cultural activities that have picked up year by year, what we can appreciate more is that the connection is getting closer and closer. Taiwan Province people have 80% ancestral home in Fujian, and the two sides of the strait share the same roots, so it is easy to have the same identity.

  In the final analysis, the Taiwan Province problem is always our own problem, and there is always a way to solve it.

45.8 degrees! French high temperature breaks many historical records.

  CCTV News:France’s high temperature has repeatedly broken historical records this summer. On the 27th, the high temperature in four provinces was upgraded to a red warning, which was the first time since 2003, and another 78 provinces were in an orange warning state. According to another report, the French Meteorological Bureau placed the provinces of Rhone Estuary, Gar, Ero and Vauclu in the high-temperature red warning for the first time in 16 years, and the warning time was from 10 am on the 28th to 6 am on the 29th.

  The French Meteorological Bureau said in the communique that the high temperature in the relevant areas will reach 42 to 45 degrees Celsius during this period, so the historical record of 44.1 degrees Celsius in France recorded on August 12, 2003 may be broken. In fact, the high temperature on the 27th has twice broken the historical record of the highest temperature in June in France. The previous record was 41.5 degrees Celsius recorded in Aude province on June 21, 2003. On the afternoon of 27th, Saint Julien-Depero La in Gar province first broke the record at 41.9 degrees Celsius, and then the temperature in Gros Pier Ray in Ardesh province reached a record high of 42 degrees Celsius.

  Some meteorologists say that the weather in France in June has never been so hot. The meteorological department predicts that the temperature in most areas will return to the seasonal average level next week.

  On the afternoon of June 28th, local time in France, the local historical high temperature record in France was rewritten three times, namely 44.3 degrees Celsius in Vaucluse province, 45.1 degrees Celsius and 45.8 degrees Celsius in Gar province. The French Meteorological Administration announced that the highest temperature in history of 45.8 degrees was monitored at 4 pm local time on 28th, located in Gallargues-le-Monthieu, Gaal province. (CCTV reporter Ma Wei)

National mutual recognition of nucleic acid test results! What is the promotion effect of various provinces and cities?

The joint prevention and control mechanism of the State Council issued a notice on the 29th, demanding to further promote the national mutual recognition of Covid-19 nucleic acid test results, and effectively facilitate people’s travel.

In the early morning of July 30th, Beijing Health Bao launched a new function, which can query the nucleic acid test results of other provinces and cities and upload them to Health Bao. How to further promote the mutual recognition of nucleic acid test results, and what efforts are being made everywhere?

The results of nucleic acids in many places can be "inter-provincial"!

In the early morning of the 30th, Beijing Health Bao was updated, adding an entrance where foreign nucleic acid test results can be imported.

According to the staff of Beijing government service convenience hotline, testing institutions must upload the test results to the national platform, so that Health Bao can synchronize relevant information. "Normal should be uploaded to National Health Commission, generally in the two WeChat applets of the State Council client and national government service platform."

In Shanghai, mutual recognition of nucleic acid results in the Yangtze River Delta region has been realized by "applying for the code", and the results of nucleic acid testing in Jiangsu, Zhejiang and Anhui can be synchronized to Shanghai "applying for the code" at any time.

The staff of the Shanghai government service convenience hotline told the reporter at the reception desk that although the "application code" has not yet synchronized the national data, the nucleic acid test results of other provinces and cities within 72 hours or the nucleic acid sampling records within 24 hours can be passed in Shanghai. "If you come to Shanghai by plane or high-speed train, you’d better do a nucleic acid test. If you can see the records of nucleic acid testing and sampling, you can take public transport. In order to avoid restricted access, it is best to go directly to the sampling point for nucleic acid testing after getting off the bus. "

Guangdong’s "Yuekang Code" can identify the nucleic acid detection certificates in neighboring Hunan Province, while Liaoning’s "Liaoshitong" and Jilin’s "Jixiang Code" can switch between the provincial nucleic acid detection database and the national database at any time.

Anhui Lu ‘an Local Community

Recognition of foreign nucleic acid testing certificate

The reporter from the General Station learned from Lu ‘an, Anhui Province that the implementation standards received by local community street epidemic prevention and control workers are all recognition of foreign nucleic acid testing certificates.

"The nucleic acid test proves that it was done in a medical institution, and we all admit it here. We follow the instructions of our superiors and will not ‘ Plus code ’ But you can’t relax. " A street worker said.

△ Source: vision china

At the underpass of Lu ‘an West Expressway, the epidemic prevention and control personnel scanned the passing vehicles, and there was no mandatory requirement to re-test the nucleic acid for the vehicles and personnel who came back from the middle and high-risk areas with negative certificates of 48-hour nucleic acid testing, so as to minimize the impact on the normal production and life of the people.

Zhang Jinsong, deputy director of the Health and Health Commission of Lu ‘an City, said: "If you are in a middle-high risk area, you must hold a 48-hour negative nucleic acid certificate. As for which province the nucleic acid certificate was made, we don’t care, but you must have a certificate, electronic or paper."

Accelerate the implementation of national mutual recognition of nucleic acid test results

However, the health codes of some provinces and cities have not been updated, and mutual recognition of nucleic acid results in various places is still in progress.

Yang Jianhua, chief expert of think tank of Zhejiang Academy of Social Sciences, thinks that some local governments are stricter and stricter on nucleic acid detection because there can be no mistakes in epidemic prevention. He told the reporter of the General Station that the mutual recognition and promotion of national nucleic acid test results is to reduce the impact on economic development while preventing and controlling the epidemic situation, which requires all localities not to discount and speed up implementation.

The Notice on Further Promoting the National Mutual Recognition of Nucleic Acid Test Results in Covid-19 issued by the State Council Joint Prevention and Control Mechanism requires that all localities attach great importance to the national mutual recognition of nucleic acid test results, and the nucleic acid test results displayed in different channels have the same effect. The nucleic acid test results found by the masses through the State Council client, national government platform, provincial health codes, nucleic acid testing institutions or App and the paper nucleic acid test results held by the masses, which have the same effect within the effective time, should be recognized by all localities during inspection.

It is strictly forbidden to refuse access, refuse people to enter public places and take vehicles on the grounds that the local health code cannot be inquired, and may not require people to repeat nucleic acid testing. All regions should take immediate action to ensure that grass-roots managers seriously implement it. The notice also clearly pointed out that the comprehensive group of joint prevention and control mechanism in the State Council will work with relevant departments to intensify supervision and guidance, and notify the places that still do not recognize each other and cause adverse effects after the release of this notice.

5.3%! Who is the "strong engine" to promote China’s economic stability and progress?

Data witness the economic highlights in the first quarter

CCTV News:The State Council Press Office held a press conference on April 16th, and the relevant person in charge of the National Bureau of Statistics introduced that in the first quarter of 2024, the national economy got off to a good start, and positive factors accumulated, which laid a good foundation for achieving the objectives and tasks for the whole year.

According to preliminary accounting, in the first quarter of 2024, the GDP was 296.299 billion yuan, with a year-on-year increase of 5.3% at constant prices. In the first quarter, the added value of industrial enterprises above designated size increased by 6.1% year-on-year, and that of high-tech manufacturing increased by 7.5%, 2.6 percentage points faster than that in the fourth quarter of last year. In the first quarter, the total retail sales of social consumer goods was 12,032.7 billion yuan, a year-on-year increase of 4.7%. Retail sales of services increased by 10.0% year-on-year.

Sheng Laiyun, deputy director of the National Bureau of Statistics, said that the GDP in the first quarter increased by 5.3% year-on-year, which is both realistic and well supported. So what are the main economic factors behind the 5.3% figure? What impact will laying a good foundation in the first quarter have on the economic situation throughout the year?

The economic growth rate of 5.3% is both realistic and supportive.

Sheng Laiyun, deputy director of the National Bureau of Statistics, said that a year-on-year GDP growth of 5.3% was realistic. From the perspective of accounting, it is mainly driven by the recovery of industry and the improvement of service industry. In the first quarter, the industrial added value increased by 6.1% year-on-year, which was significantly higher than the same period of last year and the fourth quarter. According to preliminary calculations, the contribution rate to GDP growth was 37.3%, which boosted GDP growth by nearly two points.

From the service industry, the service industry maintained a good development trend in the first quarter, contributing 55.7% to economic growth. The contribution of industry and service industry to GDP growth exceeds 90%. At the same time, GDP growth of 5.3% year-on-year is still supported.

Investment in fixed assets increased by 4.5% year-on-year in the first quarter, with a real increase of 5.9%. The retail sales of goods and services increased by 4.7% together, and exports increased by 5%. The three major demand indicators are matched with the growth of GDP.

The service industry is growing well and the modern service industry is growing rapidly.

As mentioned earlier, Sheng Laiyun, deputy director of the National Bureau of Statistics, said that GDP increased by 5.3% year-on-year. From the accounting point of view, it was mainly driven by the recovery of industry and the improvement of service industry. Let’s look at a few numbers:

From the service industry, the service industry is growing well, and the modern service industry is growing rapidly. In the first quarter, the added value of service industry increased by 5.0% year-on-year. Information transmission, software and information technology services, leasing and business services, transportation, accommodation and catering industries grew rapidly. In the first quarter, service consumption grew rapidly, and service retail sales increased by 10.0% year-on-year. Residents’ service consumption expenditure accounted for 43.3%, an increase of 1.6 percentage points over the same period last year.

The contribution rate of consumption to economic growth reached 73.7% in the first quarter.

Consumption is the "main engine" that drives economic growth. In addition to the rapid growth of service consumption, China market sales continued to recover. In the first quarter, the contribution rate of consumption to economic growth reached 73.7%, which played an important supporting role in the economic recovery.

In the first quarter, physical consumption was generally stable. The total retail sales of social consumer goods increased by 4.7% year-on-year in the first quarter, and the total retail sales of social consumer goods exceeded 12 trillion yuan. In addition, online consumption continues to be strong. In the first quarter, the online retail sales of physical goods increased by 11.6% year-on-year. Driven by some new technologies, the new online sales model was constantly innovated and the sales record was constantly refreshed.

Since the beginning of this year, the upgrading consumption of Chinese residents has continued to improve. From the retail point of view, the year-on-year growth rate of sales of sports and entertainment products and communication equipment exceeded double digits; From the perspective of residents, the expenditure on transportation and communication, education, culture and entertainment are also double-digit growth.

"China in Spring" has unlimited opportunities.

The 135th Canton Fair: Exploiting the Broad International Market with New Productivity

The 135th Canton Fair entered the second day on April 16th. This year’s Canton Fair showcased advanced manufacturing achievements, with over 1 million new products on site, over 250,000 products with independent intellectual property rights, and over 90,000 intelligent products such as intelligent bionic hand with brain-computer interface and artificial intelligence translator.

Among the exhibitors in this Canton Fair, there are more than 5,500 state-level high-tech enterprises, individual champions in manufacturing industry and "little giant" enterprises specializing in special innovation, an increase of 20% over the previous session. Many exhibitors bring new products, new technologies and new processes to open up a broader international market with new quality productivity.

Highlights of the 4th Consumer Expo continuously stimulate consumption potential.

The 4th China International Consumer Goods Expo, which is being held in Haikou, Hainan, entered its fourth day on April 16th. As the largest consumer boutique exhibition in the Asia-Pacific region, "the first show of new products" has always been the focus of great concern.

The reporter learned in the "First Show Zone" of the 4th Consumer Expo that as an important activity of this consumer Expo, the "Global New Product Plan" was held here. Since the 13th, a total of 38 brands have brought 115 new products here. Consumer Expo is the largest consumer boutique exhibition in the Asia-Pacific region, and many brands will choose it as the starting place for their new products.

The "first show area" has the following characteristics: the first feature is that the release activities are very intensive. Each brand has only half an hour, and overtime will affect the next brand, because there is no time interval between the two release activities. The second feature is that the categories are very rich, including electric smart cars representing new industries and new trends, as well as beauty jewelry, fashion toys, national handicrafts and so on, which are closely related to our lives. In addition, the organizer also set up a special exhibition area here, where all the released new products will meet with you. Therefore, in the Expo, if you want to see the most new products in the shortest time, it is right to come to this "first show area".

Of course, what appeared in the "Global New Product Plan" is only a part of all the new products released by the Consumer Expo. In each exhibition hall and booth of each participating delegation, everyone can see new products with their own characteristics and sincerity, and the number exceeds 1000. The organizers also set up special supply-demand matchmaking meetings, consumer carnivals, theme forums and other activities, the number of which exceeded 300. This will enable the Consumer Expo to better serve exhibitors and buyers, promote consumption growth and upgrading, and thus play its important role as a "global consumer boutique display and trading platform".

World internet conference Digital Silk Road Development Forum held in Xi ‘an.

World internet conference Digital Silk Road Development Forum was held in Xi ‘an today (April 16th), with the theme of "Interconnection and Common Prosperity", attracting guests from nearly 50 countries and regions. The forum focused on three topics: "Building Silk Road by Digital Interconnection", "International Cooperation of Silk Road E-commerce" and "Digital Village and Sustainable Development".

Science and technology help high-quality development

Covering nine laboratories and assembling hundreds of equipments, Dream set sail for the scientific dream.

According to the China Geological Survey of the Ministry of Natural Resources, China’s first self-developed ultra-deep-water ocean drilling ship "Dream" has entered the stage of debugging and internal installation, and it is expected to be fully completed this year.

In the Pearl River Estuary, Nansha District, Guangzhou City, Guangdong Province, the "Dream" ocean drilling ship is debugging its equipment and installing its built-in laboratory. With a total tonnage of 33,000 tons and a full crew of 180, Dream can work continuously at sea for 120 days with a cruising range of 15,000 nautical miles. At the same time, 1.2 million meters of cable was laid on the ship, which fully covered the information technology and realized the intelligent cooperation between the ship and the shore, so that the "Dream" not only has the ability of unlimited navigation in the global sea area, but also is the only scientific research drilling ship in the world with the drilling capacity of 11,000 meters. In the future, it will mainly undertake major national science and technology projects and international ocean scientific drilling tasks.

Zhou Chang, head of the Dream Command of China Geological Survey of the Ministry of Natural Resources, said that the Dream ocean drilling ship is called the Mobile Laboratory of Marine Science, and the data needed in various marine fields should be analyzed through it. Where does this data analysis come from? They collected the core with a drilling rig and sent it to the ship’s laboratory. Scientists analyzed the data together in the command hall and reached a scientific conclusion.

The ship-borne laboratory of Dream covers a total area of over 3,000 square meters, covering nine laboratories including basic geology, microbiology and marine science, and is equipped with more than 150 sets of various precision experimental instruments. At present, the installation of 12 systems including water, electricity, gas and wind has been completed, and the experimental instruments will be installed soon. According to the plan, the "Dream" ocean drilling ship will complete the trial verification in the second half of this year and be delivered before the end of the year.

New members have been added to the "national name" weapon! China’s 100-ton ultra-large thrust electric vibration test system has been successfully developed.

Vibration test system can simulate the operating environment of rockets, satellites, airplanes and other equipment, so as to test the reliability of equipment structure and performance. It is an essential supporting device for the development of aerospace, transportation and other industries. On April 15th, China Machinery Industry Federation held an appraisal meeting of scientific and technological achievements, announcing the successful development of a 100-ton ultra-large thrust electric vibration test system independently developed by China.

At present, the equipment that is maintaining high-frequency vibration is conducting vibration tests on an aircraft engine weighing nearly 3 tons. Before this, no equipment can complete the whole machine vibration test of this weight class.

Not only the aircraft engine, but also this equipment has completed the vibration test of the satellite with a total weight of over 15 tons. With the development of China’s manned space flight, lunar exploration project, large-scale transport project and other aerospace technologies, the quality and size of aerospace equipment are increasing, and the structure is becoming increasingly complex. In order to meet the mechanical environment test requirements of these major components and even the whole machine, in 2021, a 100-ton ultra-large thrust electric vibration test system was developed in Suzhou. The research team has solved many problems including system heat dissipation and cooling under high power output conditions. On April 15th this year, after the evaluation and acceptance by the expert committee organized by China Machinery Industry Federation, the system passed the third-party measurement of China Metrology Institute, marking the success of the research and development of the ultra-large thrust electric vibration test system with independent intellectual property rights in China. At present, the system has been used in China’s aerospace field, and product testing has been completed many times.

Tengshi coupe spy photos exposure, benchmarking Porsche 911?

On December 18th, a group of spy photos of Tengshi coupe were exposed on the Internet. The new car may be benchmarked in the future, and it is a high-performance car. It is understood that its price will exceed 300,000. I feel that Tengshi’s brand-new sports car will definitely be equipped with three-way technology, and it will be very cool when parking. The action of putting on the tail of the dragon will definitely make other supercars lag behind. This brand-new two-door sports car is the production version of Super 9. Previously, its concept car appeared in the form of a convertible, but this road test is a hardtop version, which is more practical. Although it is not as popular as the convertible version, it is still more popular for domestic consumers.

picture

Although Tengshi’s sports car is a production version of Equation Leopard Super 9, its style is very different from that of Super 9 concept car. This production car is more practical. At present, it is not clear whether it will adopt the layout of several seats, possibly two seats or four seats. From the block head, it is more likely to adopt four seats. In terms of appearance design, the new car is very much like a coupe. Its body is smoother and adopts a low front face design. Some design languages of the front face of the car are simpler. It is estimated that some design languages similar to those of the Z9 will be adopted. Its headlight group is not yet in place. I don’t know what type of design it will adopt. The side of the new car body is made of smooth lines, the side body is made of origami style, the bottom of the car is surrounded by sharp, its window style is also sharp, and the wheel hub looks very performance-oriented.

picture

In addition, the Super 9 concept car was a convertible when it was released, and although this road test is a hard top version, it will launch a convertible version in the future, and the hard top version will be the first to be launched. In terms of design language, the Super 9 concept car is very avant-garde, and some of its design concepts will also be integrated into the production car. At present, the power information of the new car has not been exposed. It is estimated that it will be equipped with a 2.0T engine and a 3-motor layout, and it has easy three-way technology. The power is still worth looking forward to, and its performance is definitely better than those of millions of super-runs.


Stop using it immediately! Emergency recall! Many people have it at home!

If the use temperature is too high

A wok or chopsticks used by consumers.

Non-edible substances may precipitate.

There are security risks

March 24

Shanghai market supervision bureau

Public information display

Yijia (China) Investment Co., Ltd.

14,260 woks are being recalled

And 98,403 sets of chopsticks

1. From October 2018 to September 2022, a total of 14,260 FRUKTKAKA-printed woks with model number 30427237 were produced.

2. From January, 2022 to July, 2022, there were 98,403 sets of KUNGSTIGER Kuntiger chopsticks with model number 00525814.

Reason for recall

The label identification item of FRUKTKAKA printing wok does not meet the requirements of GB 4806.1-2016 "National Food Safety Standard General Safety Standard for Food Contact Materials and Products", and the coating material of wok contains "polytetrafluoroethylene", and the unmarked coating "the service temperature shall not be higher than 250 C" (it may exceed 250 C if it is burned in air for a long time or heated until the oil boils); It may lead to misuse by consumers, damage the coating under the condition of long-term empty burning or heating until the oil boils, increase the probability of some substances in the coating moving out, and have the risk of polluting food and causing harm to consumers’ health.

The labeling project of KUNGSTIGER 4 pairs of chopsticks does not meet the requirements of GB 4806.1-2016 "National Food Safety Standard General Safety Standard for Food Contact Materials and Products", the chopsticks material contains "polyphenylene sulfide", and the unmarked product "the service temperature shall not be higher than 121 C"; It may lead to misuse by consumers. When the temperature is too high, the material state of polyphenylene sulfide may change, polluting food and causing harm to consumers’ health.

Recall measures

Consumers immediately stop using it. IKEA provides consumers with the information about the highest temperature of products. Consumers can download the warning information of the highest temperature in official website, or contact IKEA to get the warning information by express delivery. IKEA (China) Investment Co., Ltd. will publicly and widely release the product recall information, including the official website of IKEA, in-store communication in various IKEA stores, and at the same time, IKEA member customers who have purchased the product (who need to use IKEA membership card in the past five years and keep their contact information correct and effective) will receive short messages about the recall.

Product details

Swipe up and down to view

↓↓↓

IKEA recalls 2419 fishing toys.

There have been many product recalls before.

On March 22nd, IKEA also announced the recall of 2,419 toys. According to the recall announcement, IKEA (China) Investment Co., Ltd. recalled the "BLAVINGAD Blovanger Fishing Game" toys produced from October 2022 to March 2023 from March 21, 2023, involving 2,419 pieces.

Judging from the reasons for the recall, the rivets on wooden parts may be loose and fall off, and if the loose rivets are swallowed by mistake, there is a potential risk of breathing difficulties.

The recall measure taken by IKEA (China) Investment Co., Ltd. is that consumers immediately stop using the product, and said that they will provide customers with a full refund, and will publicly and widely release the product recall information, including the official website of IKEA and in-store communication in various IKEA stores. At the same time, IKEA member customers who bought the product (who have used IKEA membership cards in the past five years and kept their contact information correct and effective) will receive short messages about the recall.

Tianyuecha App shows that IKEA (China) Investment Co., Ltd. has recalled products many times before, involving coffee pots, chests of drawers, dining tables, bowls, plates and cups. In addition, many affiliated companies of IKEA have been fined for product problems. Among them, in February this year, IKEA Trading (China) Co., Ltd. and IKEA E-Commerce (China) Co., Ltd. were fined 400,000 yuan and 160,000 yuan respectively for selling unqualified Mkdorn quilts and children’s reading and writing lamps.

Little friends check themselves quickly.

See if there are any related items in your home.

And don’t forget to forward it.

Share it with friends in need.

Original title: "Stop immediately! Emergency recall! Many people have it at home! 》

Read the original text

At 10: 00 on July 28, the Central Meteorological Observatory continued to issue an orange rainstorm warning.

  Cctv newsThe Central Meteorological Observatory continued to issue an orange rainstorm warning at 10: 00 on July 28th.

  It is estimated that there will be heavy rains in parts of Fujian, eastern Jiangxi, eastern and southern Zhejiang, central and southern Anhui, southern Hebei, most of Shandong, central and northern Henan, eastern Gansu, central Shaanxi, northern Hubei, western and southern Yunnan, among which there will be heavy rains in parts of southern Anhui, northwestern Jiangxi, central and southern Zhejiang and most of Fujian, and in southeastern Fujian. Some of the above areas are accompanied by short-term heavy rainfall (the maximum hourly rainfall is 30 ~ 60 mm, and the local area can exceed 80 mm), and there are strong convective weather such as thunderstorms and strong winds.

  Defense guide:

  1, the government and relevant departments in accordance with their duties to do a good job in emergency work against heavy rain;

  2. Cut off the dangerous outdoor power supply and suspend outdoor work;

  3. Units in danger zones shall suspend classes or business, and take special measures to protect the safety of students, children and other working personnel who have arrived at school;

  4, do a good job in urban and farmland drainage, pay attention to prevent possible disasters such as flash floods, landslides and mudslides.

Liaoning: Writing a New Chapter of Revitalization in the New Development Pattern

People’s Network is a large-scale online information exchange platform built by People’s Daily, a media culture listed company controlled by People’s Daily, and one of the largest comprehensive online media on the Internet. On January 1, 1997, People’s Daily Online was officially launched. On July 1st, 2006, the Central Committee of the Communist Party of China approved the launch of "China communist party News Network" hosted by People’s Daily, and became an authoritative website to publicize and introduce the Communist Party of China (CPC)’s thoughts, theories, policies and information.

Heterogeneous in the transmission! Analysis of Toyota E-CVT transmission

  [Pacific Auto Network Technology Channel]What is it? Can realize the automobileSpeed change, torque change, direction change and on-off powerThe device is the transmission. The first car in the world was born in 1886, and the first transmission appeared soon after. It can be said that the development of transmission and automobile are synchronous. At first glance, E-, maybe everyone will naturally think of CVT, that is, CVT. Functionally speaking, E-CVT does have the function of stepless speed change, but structurally speaking, the difference between them is too great. It can even be said that there are two types of transmissions, one is E-CVT and the other is other transmissions.

● Introduction of E-CVT

  At the beginning, we mentioned that E-CVT is not a simple "electronically controlled continuously variable transmission", so of course it is not circulated on the Internet. It is an electronic version of CVT. Toyota’s official definition is "power distributor", because it does not have complex mechanisms such as traditional gearbox system or gear shaft set, and it is a power distribution mechanism specially prepared for hybrid vehicles. Therefore, there has always been a debate: is E-CVT a transmission?

 

For more articles about gearbox classification, please click the following figure to browse:

Inner chain 1

 

  Whether it is a transmission or not, we will discuss it later. What we can see is that the THS( Hybrid System) is becoming more and more mature from 200h to the later hybrid version. As a key component of the whole system, E-CVT undoubtedly plays a vital role. 

Ingenious conception and good economy! Full analysis of ECVT transmission

E-CVT structure

  If you look at it from the perspective of traditional transmission, the structure of E-CVTIt’s really, really simple. Many times, the more perfect things are, the simpler they are. I think this must be the truth. As a masterpiece of hybrid cars, Prius has been carrying the core hybrid technology, so the next analysis takes Toyota Prius as an example.

Ingenious conception and good economy! Full analysis of ECVT transmission

  The structure of E-CVT is very simple, only made up ofExternal gear ring(The outer gear ring here connects the No.2 motor and the output shaft at the same time) andplanetary carrier(connection) andSun gear(connected to No.1 motor), that is, the power transmission flow is:No.2 motor — External gear ring — output shaftAt the same time, due to the existence of planetary gear sets, there are also:Engine — Planetary group — External gear ring — output shaft. The following physical picture was taken from a foreign video.

Ingenious conception and good economy! Full analysis of ECVT transmission

  If you look closely, you can’t help wondering: Isn’t this the structure? Yes, E-CVT is made up of a planetary gear set reduction mechanism (The red box in the picture above.)。 There is no chain or steel belt in CVT, let alone the torque converter in AT or the double clutch in DCT. So, the problem is coming. . . Ahem. Can an E-CVT with such a simple structure really achieve stepless speed change? The answer is of course!

E-CVT principle

Overview:

  In fact, E-CVT is not very complicated only from the perspective of mechanical motion principle. How complicated can the motion of a planetary gear set be? What is complicated is its electronic control unit, that is, the logical principle of electromechanical cooperation. Before introducing the working principle, briefly list some noun notes that will be used below:

PCU:Power Control Unit (Power control unit) This is an essential part of a hybrid car, which contains a voltage converter and an inverter, and can adjust the output voltage of the battery pack. For example, high voltage (about 600V) must be used to supply power to the motor, and the voltage of the battery pack is up to about 200V due to the size limitation, so the transformer is essential. butThe function of inverter is to change DC to AC or vice versa.Because the high-voltage AC motor has the advantages of small size, high efficiency and large size, and the battery pack emits direct current, an inverter is necessary between the motor and the battery pack.

1:That is, motor generator 1 is connected with the sun gear.

MG2:Namely motor generator 2, andExternal gear ringConnect.

  Attribute diagram of two motors:

Ingenious conception and good economy! Full analysis of ECVT transmission

  The engine of Prius is Atkinson engine, which is characterized by good intermediate speed performance, insufficient high and low speed performance and high energy utilization rate;

Ingenious conception and good economy! Full analysis of ECVT transmission

  To facilitate understanding, put a simplified E-CVT structure diagram:

Ingenious conception and good economy! Full analysis of ECVT transmission

  Next is the power distribution diagram.

Ingenious conception and good economy! Full analysis of ECVT transmission

  First of all, we need to be clear about a concept:Power is the product of combination with rotational speed.(power = torque × rotational speed),

  Then because there are four that canFree revolutionPlanetary gear, it can be imagined that when the gear ring is fixed (that is, the wheel is fixed), the sun gear (MG1) can only drive the planetary gear seat (that is, the engine) to rotate (that is, start the engine process) when the planetary gear rotates;

  With the rotation of planetary gears, when the ring gear (MG2) rotates forward, the sun gear (MG1) can also rotate backward. Conversely, when the ring gear (MG2) rotates reversely, the sun gear (MG1) can rotate forward again.

  For example, when the outer ring gear and the sun gear rotate in the same direction, the planetary gears can not rotate, but only revolve, thus driving the gasoline engine to rotate. When the planetary gear seat does not rotate, the ring gear and the sun gear can still rotate freely. It is precisely because of this ingenious characteristic of the planetary gear set,Only when the engine, wheels and motor are connected together can they run without interfering with each other.Therefore, the clutch structure is omitted.

Ingenious conception and good economy! Full analysis of ECVT transmission

  S=C×3.6-R×2.6

  In the formula, s = sun = sun gear, c = carrier = line constellation, and r = ring = outer gear ring.

  In addition, since the diameters and teeth numbers of the external gear, the sun gear and the planetary gear have been fixed, it can also be obtained according to the formula on the drawing:When the planetary constellation rotates in the middle, the torque ratio allocated to the outer ring gear and the sun gear is certain.. The specific value is about72%Allocated to the external gear (actually 2.6÷3.6),28%Allocated to the sun gear (1-72%). As long as the engine rotates to work, it will not change this basic fact.

Ingenious conception and good economy! Full analysis of ECVT transmission

  Then we all know that under a series of different working conditions, the requirements for torque are greatly changed. Traditional power vehicles need a transmission to adjust the output power of the engine. However, in this specific structure of E-CVT, because there are two motors, under different working conditions,According to the above formula. As long as the different rotational speeds of these two motors are controlled, the engine power obtained on the outer gear ring can be changed infinitely, so that the automobile can achieve stepless speed change.

  As for how the PCU of Prius can control the fuel supply of the engine and the voltage, phase and positive and negative on-off of the two motors in real time according to the running conditions of the car. The control logic involved and the data collection and processing procedures of many sensors are too complicated to be described here. Understand that E-CVT can realize stepless speed change.

 

For more technical channel articles, please click the following link to view:

technology

Detailed explanation of working conditions

  The following analyzes the speed change process of E- one by one from various operating conditions:

I. Idle running (hot car)

  After the start command is issued, it starts (rotates forward) in an instant and drives the start. The whole process is extremely fast and smooth.

Ingenious conception and good economy! Full analysis of ECVT transmission

  After the engine is started, it runs at idle speed, and the gasoline engine drives the planetary constellation to rotate forward. Because the wheel (outer ring gear) does not rotate, the forward rotation of the planetary gear set (engine) will drive the sun gear (MG1) to rotate forward through the planetary gears. MG1 no longer receives power from the battery pack, but becomes a generator.Emit alternating current, through the inverter and voltage converter in PCU, it becomes low-voltage DC and charges the battery pack. In short, at idle speed,The whole engine is used to charge the battery pack..

Ingenious conception and good economy! Full analysis of ECVT transmission

Second, start

  After the start signal is sent, a small amount of power will be connected to the No.2 motor, and MG2 will start to rotate. Drive the wheel (outer gear ring) to start forward rotation, and the car moves slowly. When you press the accelerator pedal slightly hard, the No.2 motor will get more power and the Prius will accelerate. Because the power of No.2 motor is very high (50KW), the low speed is also very high. Under the control of PCU, the acceleration of the car is very soft.Even by MG2 aloneYou can accelerate the Prius to a considerable speed! This starting process gives full play to MG2.Low speed and high torsionTo make up for the embarrassing situation of insufficient low-speed torque of the engine.

Ingenious conception and good economy! Full analysis of ECVT transmission

  It is worth noting that if the engine is not working at this time (starting in pure electric mode), with the increase of the rotational speed of MG2, the rotational speed of MG1 will also increase rapidly. Because the speed of MG1 has an upper limit, when it reaches the upper limit, the engine is forced to start to intervene. There is a critical speed at this time. Although this speed is fixed, it is certain that the greater the intensity of stepping on the accelerator at the start, the earlier the gasoline engine will intervene (actively intervene). If you step on the accelerator all at once, the gasoline will ignite immediately.

  In most cases, MG2 can smoothly accelerate the Prius to a good speed, but in some cases, there will be a phenomenon of insufficient power. This is what the engine will pass after intervention.Driving MG1 to generate electricity for MG2.andDirectly drive the external gear to rotate to push the wheel.Two ways to output power, it is worth mentioning that these two ways can exist at the same time. As for the proportion of each other, it depends on many factors.

Ingenious conception and good economy! Full analysis of ECVT transmission

Third, small load acceleration

  When accelerating under light load, the wheels are mainly driven by MG2. With the speed of MG2 increasing, the speed of reverse rotation of the four planetary gears gradually decreases. When the speed of the gear ring is the same as that of the planetary constellation (engine), the rotation of the planetary gears stops, leaving only revolution. At this time, the planetary constellation (engine) pushes the gear ring (wheel) and sun gear (No.1 motor) through the four planetary gears that are no longer rotating, and the three speeds are consistent. MG1 continues to supply power to MG2 and charges the power battery through PCU. Thereafter, the speed of MG2 continues to increase until the vehicle reaches the target speed. At this time, the sun gear rotation speed is less than the rotation speed of the constellation.

Ingenious conception and good economy! Full analysis of ECVT transmission

Fourth, heavy load acceleration

  In the face of heavy load acceleration (such as load starting), the power of MG2 can’t keep up.Engine speed increaseEntering its economic operation range, the power of the engine is greatly improved. Because the torque increase of the engine further drives MG1 to generate electricity and the power obtained by the outer ring gear increases, at the same time, the battery pack will also supply power to MG2. Thanks to this, MG2 enters the "full firepower" mode.

Ingenious conception and good economy! Full analysis of ECVT transmission

Fourth, driving at a constant speed

  Driving at a constant speed occurs after the acceleration is completed. At this time, the Prius only needs to overcome all kinds of resistance, and the demand for power and torque is greatly reduced. After the throttle is relaxed, the speed of the gasoline engine decreases, and the speed of the gear ring (wheel) is higher than that of the planetary carrier (gasoline engine). At this time, the four planetary gears began to rotate forward. This forward rotation will drive the sun gear (MG1) to reverse.

  There is something special here, as we learned from the previous article. When the power from the engine is transmitted to the outer ring gear and the sun gear through the planet carrier, the rotational speeds of the outer ring gear and the sun gear will satisfy the following formula.

  S=C×3.6-R×2.6

  When the rotating speed of the outer gear ring is higher than that of the planetary carrier, that is, when R>C, it is obvious that S < 0, that is, it is reversed. However, if the reverse rotation of sun gear at this time is idling (without any resistance), it will rotate so fast that all the power from the engine will be absorbed by MG1 and the external gear ring cannot be driven (because it is obviously much easier to drive sun gear than to drive the external gear ring). Therefore, MG1 will need to work in the motor mode here, so that the planet carrier can’t drive the sun gear to fly at high speed and waste the power of the engine.

  But wouldn’t that be a waste of electricity? Therefore, in general, when cruising at high speed, MG2 becomes a generator to maintain the rotation of MG1.

Ingenious conception and good economy! Full analysis of ECVT transmission

  In fact, during the whole driving process of Prius, the state of acceleration and uniform driving is constantly switching. The phase of voltage and current will be adjusted by PCU according to various operation actions such as stepping on the accelerator and releasing the accelerator, and various driving conditions of the car, and the output power and rotating direction of the motor will be changed instantly, and the functions of the two motors will be switched.

Fifth, slow down

  In fact, the deceleration is relatively simple, with the engine turned off and the MG1 idling. MG2 is driven by the wheel and becomes a generator to absorb the deceleration energy of the wheel. And charge the battery pack.

Ingenious conception and good economy! Full analysis of ECVT transmission

Sixth, reverse the car

  Thanks to the large torque of MG2, the torque MG2 required by the Prius when reversing can be easily provided. The battery pack supplies power to MG2, which drives the external gear ring to reverse, and the vehicle finishes reversing.

Ingenious conception and good economy! Full analysis of ECVT transmission

  In the whole driving process of Prius, we can see that it is actually a process in which two motors and engines cooperate with each other to perfectly perform linear output under strict electromechanical conversion logic control. The basis of this perfect cooperation is the special structure of E-CVT. Because power = torque × rotational speed, the planetary gear set structure with proportionally distributed torque and infinitely distributed rotational speed enables the power of the engine to be infinitely distributed to the outer gear ring (i.e. wheels) at any time and place, thus completing all functions of the ordinary stepping gearbox!

  The following table shows the running state of each gear of E-CVT during the whole process:

Ingenious conception and good economy! Full analysis of ECVT transmission

  You can also refer to the following video to improve your understanding of the operating relationship between planetary gears, sun gears and external gear rings.

Prospect of E-CVT

  The appearance of gearbox was born in order to meet the different power requirements under various complex working conditions. Before it appeared, drivers needed to judge the road conditions and car conditions themselves to shift up and down in time. The advantage of this method is a strong sense of driving operation. After all, experienced drivers know what kind of power the car needs better than ECU. In addition, the advantages of simple structure, easy maintenance and small size also make the car with manual transmission have a large number of fans no matter where it is suitable.

  The appearance of automatic gearbox is actually very early, but the real large-scale application was in the 1980 s, and it was also a free ride with the rapid development of electronic technology. Because automatic transmission is not difficult, it is difficult to change the speed more accurately. In the mechanical age, technology is obviously difficult to achieve, but nowadays, more and more intelligent ECU makes automatic transmission more and more able to understand your driving intention. But even so, the automatic gearbox still has defects:There is shift clearance.Even DCT can’t realize the real "stepless speed change".

  As for the protagonist E-CVT in this paper, it can be said that it has reached the peak of the integration of electromechanical technology in the gearbox field. First of all, its logic control system is very complicated. In addition, it can effectively make up for the short board (low transmission power) of the traditional stepless gearbox, which integratesHigh power, quick response, stepless speed change and extremely high transmission efficiency.And other advantages in one. But it also has disadvantages:The support system is too complicated.We know that once any system is too complicated, the probability of problems will increase exponentially. 

Ingenious conception and good economy! Full analysis of ECVT transmission

summary

  Let’s make a simple summary of E-CVT:

1. Very smooth, extremely smooth

2, the transmission efficiency is high

3, simple structure and small volume

  Let’s go back to the question at the beginning of the article about whether E-CVT is right or not. Let’s put it this way: If other power sources were not needed to cooperate with it, I’m afraid E-CVT technology would have unified the gearbox field long ago. It is precisely because of this "fatal" defect that it is simply tailored for hybrid models. Writing this analysis is not entirely for the sake of popular science, but I hope that everyone can learn more about this somewhat heterogeneous and unknown transmission structure and its thinking. Because I firmly believe that in the future when fossil energy is exhausted, E-CVT will finally shine!