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The new star of the automotive market, the contest between Changan Deep Blue SL03 and Tesla Model 3 has begun. On July 25, the Deep Blue SL03 was officially launched at a price of 168,900 yuan. With the new EPA1 pure electric platform, it debuted as a medium-sized car, providing three power options of pure electricity, range extension and hydrogen electricity, bringing diversified choices to consumers.

In terms of appearance design, the dark blue SL03 adopts a closed front face shape, with angular split headlights on both sides, showing a futuristic sense and aggression. In contrast, the family front face design of Tesla Model 3 has a Porsche charm. Although radical, the dark blue SL03 is more fashionable and elegant.

On the side of the body, the dark blue SL03 is simple and powerful, and the short waistline and hidden door handles create a sporty atmosphere. The unique design of the Tesla Model 3 is more sporty. In terms of size, the slender body and 2900mm wheelbase of the dark blue SL03 make it more visually advantageous.

In terms of the interior, the deep blue SL03 combines sports and simplicity elements, with a 10.2-inch instrument panel and a 14.6-inch center display full of technology. The interior of the Tesla Model 3, although simple, lacks vitality. The deep blue SL03 provides Qualcomm 8155 chip, which far exceeds Tesla’s HW3.0 in computing power, bringing significant improvements to the performance of the car.

In terms of power, the pure electric version of the Deep Blue SL03 has a battery life of 515km and 705km, the extended range version has a comprehensive battery life of up to 1200 kilometers, and the 2022 high-performance version of the Tesla Model 3 has a pure electric life of 675km. In terms of intelligent driving assistance, although the configuration of the Deep Blue SL03 is not conspicuous, it can provide high-end functions after optional installation, and the cost-effectiveness advantage is obvious.

To sum up, the Changan Deep Blue SL03, with its excellent cost performance, poses a strong challenge to the Tesla Model 3 in terms of appearance design, interior texture and battery life. As a rising star of domestic new energy models, the Deep Blue SL03 undoubtedly brings more choices and surprises to consumers.

　　[Original test drive] After leaving the group, although the global performance has improved and the development is booming, the power system has also become a big problem for this brand. Ford’s 2.0-liter in-line 4-cylinder can’t meet Volvo’s demand, so it has to move out of the in-line 5-cylinder engine at the bottom of the closet to save the scene. In terms of gearbox, PowerShift and Aisin’s 6-speed are also used as a transition. Finally, this year, the new DRIVE-E powertrain technology, which cost $11 billion, has achieved results, and Volvo has finally survived the stage of green and yellow.

　　Starting from this year, Volvo will update its engines and gearboxes around the world, and the latest DRIVE-E series powertrain will also enter the domestic market. The first model equipped with new engine and gearbox is XC60, which is the main sales model, and then other models will also replace the power system one after another. We test-drive the XC60 T5 with a brand-new 2.0-liter in-line 4-cylinder engine and an 8-speed automatic transmission at the first time. Because the steering and steering have not changed, we will focus on the improvement brought by the new power system. (Please see here for the detailed introduction of the new model:New 2.0T Engine +8AT Real Shot New Volvo XC60)

　　According to Volvo’s introduction, the future DRIVE-E series engines will all use in-line 4-cylinder layout, and obtain more power through a series of technologies such as supercharging, which can completely replace the traditional 6-cylinder engine in power output, and can also be connected with motors in the future to form a system, and the comprehensive output will reach the level of the traditional 8-cylinder engine. At present, a diesel engine and two gasoline engines have been released, of which the power is 245 horsepower and 306 horsepower respectively. Based on the current inline 4-cylinder block, there will be 8 different models to choose from in the future.

　　The new XC60 T5 model uses a 245 HP gasoline engine with an output of 350 Nm. Relatively speaking, XC60 is lucky, because it has always retained the 4-cylinder engine left by Ford, which is also an advanced engine. Compared with the past, the new T5 model has slightly improved power and optimized torque output, which can provide a maximum torque of 350 Nm from 1500 rpm. According to the official data, the 0-100 km/h acceleration of XC60 T5 model is shortened by 0.9 seconds to 7.2 seconds with the DRIVE-E engine.

　　If we only look at the parameters of the engine, the power improvement of the new engine is not enough to cause such a big gap in acceleration. Here, the new 8-speed automatic gearbox plays a greater role. The gearbox of the new model is provided by Aisin, which is Aisin’s first 8-speed automatic gearbox based on horizontal platform. The transmission ratio range of the new gearbox is increased by 23% compared with the previous 6-speed gearbox, so it can be expected that the shift of the new model will be smoother, the fuel consumption will be reduced, and the acceleration will also be improved.

　　During the test drive, we can feel that the response of the new engine is very positive, especially when the throttle opening is large and the engine is accelerating rapidly, and the engine has abundant power in the middle and high speed range. In daily driving, the performance of the whole power system is relatively calm, without too much emphasis on power output, but in a relatively low-key state, presumably engineers are more concerned about fuel consumption. When driving at a constant speed, the gearbox will control the speed at 1500 rpm, which is just the range of maximum torque output. The throttle response of the new model is very good, so basically you can get a good response immediately when you step on the throttle.

　　The smoothness of the 8-speed gearbox has made a qualitative leap compared with the previous 6-speed gearbox. If you don’t pay attention to the state of the gearbox with extremely demanding standard time, then you won’t feel it shifting gears. When accelerating rapidly, the gearbox responds directly, and immediately downshifts without hesitation. I think the performance of the powertrain of the new XC60 can be comparable to that of the 328i, and the combination of BMW’s 2.0T engine and 8AT gearbox can be said to be the leading level in this field at present. In other words, Volvo’s new powertrain can be regarded as a benchmark.

　　The performance of fuel economy can’t be understood in the test drive, but from the power performance and the running state of the engine during normal driving, there should be obvious differences in fuel consumption between the new powertrain and the old model. In addition, the ECO+ driving mode is added to the new model. In this mode, the gearbox will shift up ahead of schedule, and the response of the throttle will slow down. It is said that the working state of the air conditioning system will also change, thus achieving the best energy-saving efficiency. The strangest thing is that in this mode, the automatic engine start-stop function will turn off the engine before the vehicle stops completely. When the driver steps on the brake and the vehicle slows down to about 5km/h, the engine stops working. At this time, the vehicle coastes by inertia, and the engine will ignite again when the brake is released. In normal mode, the engine automatically starts and stops after the vehicle is completely stationary.

　　DRIVE-E is the largest strategic project of Volvo since it was incorporated into the group, and its result will determine the future development direction of Volvo. At present, the newly planned powertrain has reached the industry-leading level in technology, allowing Volvo to finally make up for the shortcomings of the powertrain, and Volvo’s models finally have the capital to compete with competitors in an all-round way. Compared with XC60, I look forward to the performance of S60, V60, V40 and other models equipped with new powertrains, because at present, these models still rely on the 5-cylinder engine more than 20 years ago as the power source in the domestic market, and their competitiveness will be greatly improved after replacing the new engine. In addition, I believe most people are curious about the performance of the 306 horsepower plus engine. This engine will be equipped on the two-wheel drive T6 model in the future, and the T6 AWD will still use the inline 6-cylinder engine for the time being.

　　In addition to the intuitive advantages of power and fuel consumption, DRIVE-E series engines have smaller volume and lighter weight, so they can also bring some additional benefits. For example, all Volvo models adopt the mode, and the engine is transverse, which makes it difficult for all Volvo models to achieve perfect front and rear weight distribution. The new engine reduces the weight and improves the top-heavy situation of the vehicle to some extent. In the conversation with Volvo engineers, I also learned that the DRIVE-E powertrain with the new SPA modular platform architecture can bring more advantages. Because the engine becomes smaller and the 4-cylinder engine replaces the 6-cylinder engine, the engine occupies less engine compartment space, so the layout of steering mechanism and front suspension can be more flexible. It is said that the new model based on SPA platform can achieve shorter front suspension, and the next generation model may adopt more advanced double A-arm suspension to replace the current McPherson structure. In short, thanks to the new engine, the driving performance of the next generation Volvo models will be improved.

　　Let’s talk about the XC60 sold in China. After replacing the powertrain, the price of the vehicle increased by 9,000 yuan, the power increased by 5 horsepower and 30 Nm, and the gearbox had two available gears, in exchange for better driving experience and fuel efficiency. The money was still well spent. (Text/Figure car home Wang Kugong)

　　"I went to the business hall on Saturday and found that nine out of ten were asking: Where did the traffic go?" Liu Qicheng, a well-known communication expert, lamented in a circle of friends. This is just a microcosm. According to the data of the Ministry of Industry and Information Technology, in April this year, the average mobile Internet access traffic reached 3.41GB, a year-on-year increase of 154%. Traffic consumption has long been commonplace and has become the focus of everyone’s mobile phone package. But at the same time, there are also various questions about mobile phone traffic from consumers: Why do you buy more traffic, but my traffic is getting less and less? Why do you send me so much local traffic when I don’t need it at all? There are so many set meals, why isn’t there my dish?

　　1 Why do I buy more and more traffic, and my traffic is getting insufficient?

　　"The original G was enough for one month, but now it is not enough for 15 days." Many people around are complaining that the mobile phone traffic is not enough, and even many people begin to question the "abnormal consumption" of mobile phone traffic. Some netizens complained on Weibo that they got up in the afternoon and ran away with 19.46GB of traffic. And this abnormal situation is not uncommon. "Stealing traffic" has become a hot word on the Internet. So who stole your traffic?

　　Pei Zhiyong, the chief anti-fraud expert of 360, told the Beijing Morning Post that mobile phone traffic is indeed "running fast" now. The first reason is the change in the usage habits of mobile phone users. In the past, we mainly used text to surf the Internet on mobile phones, and the pictures were often compressed very little. Now, pictures, texts and videos are very popular, and often one picture is four or five megabytes, not to mention all kinds of small videos, which will definitely consume more traffic objectively. In particular, mobile phones are heavily used, and when they stay on social software for a long time, videos that are inadvertently clicked will be quietly downloaded to the mobile phone. Secondly, many softwares run silently in the background even if they are not opened, and even update quietly without your knowledge, which also eats up a lot of traffic. For example, he said that the child had just played Plants vs Zombies, and every time an advertisement popped up, he clicked, and as a result, he unconsciously downloaded a lot of software. There is also an abnormal situation in which illegal software steals traffic.

　　Fiberhome Lab of 360 Internet Security Center has previously discovered a brush cheating Trojan named StealthBot, which adopts a self-hiding mode and a mature simulation click process. Like a batch of invisible robots produced by an automatic assembly line in a factory, it disguises itself as a system service notification, consumes users’ data traffic through startup modes such as automatic operation and external wake-up, and can automatically update and load the latest version of malicious plug-ins in response to instructions issued by the server. Some user groups with weak security awareness and mobile phone brands with poor security have become the areas with the highest occurrence rate of StealthBot. This only exposes the tip of the iceberg where black traffic is rampant.

　　In fact, the era of "not turning off 4G traffic, waking up and moving the house" has long passed. Others question that operators "steal traffic", but this statement is obviously unfounded. Fu Liang, a telecom analyst, believes that it may not be worth the loss for operators to modify the user traffic data. Assuming that operators want to "black" the user traffic, the cost required to transform the system is more than the income brought by stealing traffic.

　　It has been reported that in order to verify the accuracy of traffic measurement by operators, the test results of communication traffic detection conducted by Zhejiang Quality Supervision Bureau and Zhejiang Institute of Metrology showed that SIM cards of three major operators were randomly inserted into three multi-standard wireless communication internet traffic monitors, and the same file was downloaded. The number of repeated tests was 10 times, and the deviation values of traffic detection data were all 0.1% to 0.15%. From the comparison of the test results, there is almost no difference from the traffic statistics provided by operators, so the statement that operators adjust their calculation methods to "steal traffic" is not valid.

　　Why is there so much local traffic, but we can only watch the national traffic run out first?

　　As a patient with severe dependence on mobile phones, Xiao Guo often travels abroad. A package she ordered has 1GB of national traffic, and the operator will also give away 3GB of local traffic. But she found that the national traffic was the first to be consumed, while the local traffic as high as 3GB could not be used. "Why can’t you take the lead in using local traffic when you are in Beijing?" Some users also ridiculed that they received a large amount of traffic from operators at the end of the month, but there was no time to use it.

　　In fact, there are many people like Xiao Guo who "the national traffic is not enough and the local traffic is bursting". However, because the operator sets the priority of national traffic use, the priority of off-package gift traffic is lower than that of in-package traffic. That is to say, use the traffic in the package first, and then the traffic in the package is used up, and the donated traffic can come in handy. However, this embarrassment will soon be a thing of the past, because from July 1 ST, the roaming charges will be completely cancelled, and no distinction will be made between the province, the province/local and the whole country.

　　The Beijing Morning Post reporter noticed that operators often give users a gift of traffic and often launch some promotional activities to grab traffic. However, some insiders pointed out that in fact, for the current traffic giving method, the given traffic often returns to the original road, and the user perception is not strong. Since it’s a gift, why not just be generous? Xiang Ligang, a telecom observer, pointed out that giving away traffic is more of an operator’s market strategy to attract users. However, I believe that after the cancellation of traffic roaming charges, operators may not be so "heroic".

　　3 Say good unlimited package, why speed limit?

　　Operators have been clamoring for "unlimited packages" recently, but it has attracted many consumers’ doubts: after exceeding 20G, they will be slowed down and returned to the 3G era, or even the 2G era, and they will be directly stopped after using more than 100G G. Netizens have complained that the Huimin package has hidden routines and operators lack sincerity.

　　However, in the industry’s view, it is understandable for operators to limit the speed of unlimited traffic packages, which takes care of the choice of most 4G users to use the network fairly.

　　Ceng Jianqiu, a professor at Beijing University of Posts and Telecommunications, pointed out that under the current network conditions, it is difficult for operators to achieve real traffic without capping. Due to the limited bandwidth of the mobile network, it is likely to cause network congestion if multiple users continue to occupy it at high speed at the same time. Previously, AT&T, an American telecom giant, had launched a package with unlimited traffic and speed, but the result was stopped because the network could not bear it.

　　Speed limit is a popular international practice at present, with stepped design — — First, meet the maximum network speed promised by the vast majority of users. After reaching the speed limit, the network speed will drop.

　　Now, if the operator really does not limit the speed, what will happen? As you can imagine, many people turn it into a WiFi hotspot for many people to use together, and then the network will be overwhelmed and the internet speed will become "turtle speed". This obviously deviates from the original intention of operators and consumers.

　　4 why can’t the inexhaustible phone bill be converted into traffic?

　　Consumer Mr. Li calculated an account for the Beijing Morning Post reporter. He is currently ordering a package of 158 yuan from an operator, with 6G of national traffic per month and 700 minutes of talk time. In actual use, the internet traffic is much used, and the traffic is often not enough every month, but most of the call duration is left. "Can the inexhaustible phone bill be automatically converted into traffic?"

　　In fact, this conversion model has long been tried by operators. In 2016, China Telecom took the lead in raising the banner of "full flow billing".

　　In September, 2016, China Telecom Shandong Branch launched a new mode of full traffic charging, which converted voice and SMS into traffic for charging, and voice and traffic can be converted freely. Among them, 1M is equal to 1 minute, and how much M traffic will be deducted for how many minutes you make a phone call, and there will be no balance of call duration in the package. At the same time, the "domestic traffic" in the package can be converted into "domestic calls". In addition, some other local companies of China Telecom have also tried the water. However, Beijing has not yet been realized.

　　In addition, China Mobile also plans to pilot the unit price charging model of flow ladder in some cities.

　　However, this model is not popular at present. In Xiang Ligang’s view, full flow billing is technically not difficult, but operators have invested a lot in changing the billing system. Most importantly, with the coming of 5G, the operator’s billing system may be reshaped, so the operator does not have much enthusiasm at present.

　　5 why can’t I combine freely, and my package is my decision?

　　As a senior mobile phone user, retired worker Lao Li’s confusion is that there are so many packages of operators that people are dazzled, but none of them are my dishes. The ideal model is that I provide the monthly consumption demand, and then the operator tailors the most suitable package.

　　Obviously, the tariff that Lao Li wants is a "private subscription" model. In fact, operators have similar schemes. For example, as early as 2013, China Telecom launched a nationwide unified customer-selected tariff scheme — — Building block package. In order to help customers match "building blocks", China Telecom has provided many humanized auxiliary tools, such as flow calculator and flow application examples. The building block package consists of four "building blocks": voice, traffic, SMS and 3G applications. Customers can mix and match freely according to their own consumption needs, and change the package as needed at any time.

　　China Mobile and China Unicom also have similar "building block packages", which are designed to freely match voice calls and Internet traffic. However, the space for users to choose is still limited. For example, open the client of an operator and find the package calculator, which recommends the appropriate package according to your consumption and use in recent months, but the minimum recommended voice is 18, which obviously cannot meet the needs of Lao Li’s DIY. Therefore, this service has not achieved real success and popularization in the three major operators.

　　Ma Jihua, a senior telecom analyst, pointed out that after years of development, telecom operators are constantly innovating and the package system is huge, which can not only confuse customers, but even business people themselves don’t quite understand it. In this case, it is easy to cause the external performance of price opacity, giving users the feeling that they are being fooled. Packaging consumption allows users to enjoy more affordable prices than single accumulation, but many people have no demand for some additional parts and often feel forced to spend. Even if you use it for free, you still feel uncomfortable.

　　6 Why do new and old users treat each other differently?

　　With the deepening of speed-up and fee reduction, new mobile phone tariff schemes emerge one after another. Every season, operators will try their best to introduce new selling points to attract users. For example, campus promotion large-flow packages, such as mobile broadband bundled fusion packages. But many new packages that look beautiful are only for new users, and old users are blocked out.

　　For example, the unlimited card of Beijing Mobile 68 yuan is only for new users. The most favorable unlimited traffic package that old users can choose is 98 yuan/month, which contains 150 minutes of voice and 20G of domestic traffic. After the traffic is exhausted, the speed limit of surfing the Internet is up to 1Mbps. After the accumulated traffic in the month exceeds 100G, you can continue surfing the Internet, but the speed limit is 128Kbps. Beijing Telecom’s 65 yuan Convergence Package is only for new users, and it needs to be paid for two years.

　　It has been a fact for many years that there is a certain gap between operators’ care for old users. Why should new and old users be treated differently? Some operators have no choice but to complain that the market is getting saturated and the growth rate of users is slowing down, and the purpose of many promotions is to grab passengers, so the promotion is strong. However, old users enjoyed the preferential scheme at that time when they accessed the network.

　　In November last year, because of the problem of old users switching to Internet packages, the Ministry of Industry and Information Technology called on telecom operators to provide convenience for old users to change packages, and not to introduce plans to restrict old users from choosing tariffs, and asked enterprises to sort out and investigate existing tariff plans. If there is any behavior that restricts users’ tariff options, it will be rectified immediately.

　　Fu Liang, a telecom analyst, believes that the ideal way is to operate a user from the moment the user enters the door, so that users can feel cheaper and cheaper tariffs and better and better services, instead of attracting users with high preferential policies and then letting them go. In his view, it is still common that old packages are not upgraded or old users still need to take the initiative to apply for outdated tariffs.

　　However, in the context of market saturation, "please" old users is the cornerstone of building stability. In particular, port number transfer will be fully implemented in 2020, and it is time for operators to be nice to old users.

　　■ Link

　　Tips for saving mobile phone traffic

　　Although the traffic charges are getting cheaper and cheaper, many small partners exclaim that the traffic charges are increasing. Especially at the end of each month, the traffic is shy. In fact, there are many tips to save traffic and prevent it from sneaking away.

　　1. Download applications through formal channels.

　　Applications downloaded from the third-party software market are risky, and some illegal software will steal traffic. Therefore, friends should try their best to download applications in formal channels, such as the mobile phone manufacturer’s own app store, official website, etc., so as to avoid accidentally installing traffic-brushing software.

　　2. Turn off the automatic synchronization function

　　Turning on the automatic synchronization function of the mobile phone will consume a lot of traffic in the background without your attention, so it is best to turn off the automatic synchronization function or choose to synchronize only under the WiFi network.

　　3. Close the background running program.

　　Many times when we close an application, we return to the desktop directly. If there are too many internet-connected apps in the background, when they are on standby, they may constantly refresh and access data. Therefore, it is necessary to develop the habit of closing and cleaning up the background operation of apps in time, leaving only the software that needs to be online all the time. This can also improve the running speed of the mobile phone to a certain extent. Nowadays, many mobile phones provide a shortcut to close the application with one button.

　　4. Turn off the mobile data of the mobile phone

　　When not surfing the Internet or using WiFi, remember to turn off the mobile phone to move data, which can fundamentally prevent the background program from consuming traffic. Especially in the environment with WiFi, although the system will give priority to WiFi, it will automatically switch to mobile data under special circumstances or when the signal is bad.

　　5. Restrict the Internet connection of large customers who eat traffic.

　　Apple Edition: Open Settings → Cellular mobile network can query the situation of traffic consumption, thus limiting the networking of designated applications.

　　Android version: Open the security center in the mobile phone settings, and you can query the traffic consumption of each application, thus restricting the designated applications from connecting to the Internet.

　　In fact, the most popular apps are several commonly used apps, which can be found in the data traffic usage of mobile phones. Generally, WeChat, QQ, browsers and game software are all big traffic users. Some measures can be taken, such as: WeChat friends circle small video opens the automatic playback setting in WiFi-only environment; Try to use compressed photos when drying photos in your circle of friends; Try to communicate in pure text, and send less emoticons, voices and short videos; Don’t click on links, short videos, photos, etc.

　　6, set the daily flow limit

　　It is suggested that the monthly traffic usage limit or early warning should be set in the [Security Center] in the mobile phone settings, so as to find out the abnormal traffic consumption in time.

　　7. Pay attention to the application scope of directional flow.

　　At present, operators and major Internet companies have launched a number of targeted packages, such as Tencent King Card swiping WeChat, watching Tencent videos and playing the glory of the king, which are free of charge. However, if you occasionally brush a Weibo and send a Tik Tok, you will have to pay an extra traffic fee. When ordering these packages, pay attention to their limited scope.

　　8. Multi-operator wool

　　At present, operators often launch some activities such as traffic giving, lottery, special offer, etc. on many holidays, and pay attention to official platforms such as operators’ clients, public accounts and Weibo, which are often hit by free traffic. For example, Beijing Mobile client has a regular activity of signing in to send traffic, and can get a total of 160M traffic coupons for free every month. And Beijing telecom can get a total of 300M traffic when signing in.

　　Reporter Jiao Likun