TU-TESL

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Just like everyone has their own strengths, most car companies have their own skills. It is mentioned that the four-wheel drive technology named after Quattro is one of the necessary technologies. From the invincible WRC battlefield to the high-end civil vehicle market, this technical label is one of the soul of the whole brand. Now, the Germans have announced that it is in the 2.0 era. If we sum up the technology, the 1.0 era is a pioneering and optimization period from scratch, and the 2.0 era is a period from mechanical to electric; Quattro is only a trademark, and the specific structure is different according to the time nodes, with obvious differences in structure and principle; at the end of the 1.0 Era, Quattro has changed from the early difficulty relief to increase the stability and fuel saving, and the 2.0 era continues this feature; if you are interested in Audi Qu Attro has a very good understanding of the history. If you want to directly understand the highlights of Quattro 2, you can directly click on the second page to read it; 1. As most stories start for a long time, in a long time, four-wheel drive technology mostly appears on off-road vehicles. Although the performance of getting rid of difficulties is strong, most of them are huge in size and complex in structure. People didn't think about it and couldn't imagine it on other models. 40 years ago, it was also the Geneva auto show in Switzerland. Quattro technology from Ingolstadt first appeared in front of the general public, which marks the four-wheel drive technology began to enter the field of civil cars. Quattro means "four" in Italian. Audi named it "four-wheel drive" and compared it with the image of a gecko. The gecko has undergone structural changes and functional transformation in recent years. For example, in recent years, the German introduced the sport differential function. The left and right sides of the rear axle differential are respectively equipped with a set of multi plate clutches. This group of electro-hydraulic clutch plates will adjust the pressing state at any time according to the vehicle state, so as to realize the idea of actively distributing torque between wheels, which is similar to the main character to be talked about today. With the laws and regulations constantly improving the fuel efficiency index and further requiring the cleanliness of internal combustion engine emissions, the overall direction of research and development of vehicle enterprises, including ultra fast, is energy conservation and emission reduction, and the four-wheel drive structure or the realization effect also complies with the tide of the times. Therefore, Audi will push Quattro ultra to the front of the stage from 2016. As the end of Quattro 1.0 era, Quattro ultra is still a product developed for the vertical platform. It regulates the torque transmitted by the rear axle by adjusting the compression degree of the multi plate clutch. Its overall structure is similar to the Haldex four-wheel drive system used on the transverse platform. What's more, its working mode, or characteristics. One word summary: Quattro ultra can achieve a completely sustainable and stable 100% front drive mode, while the central drive shaft and the rear differential housing can also stop rotating, which can not be done before. The effect is obvious, that is, saving oil. From Quattro ultra, it is not difficult to see that its structure is simpler than 40 years ago, and the development goal has become more suitable for urban pavement driving. In the era of energy conservation and emission reduction, the once hardline plan is adapting to the development of the times. Now, the 2.0 Quattro technology based on pure electric platform has subverted our imagination again. The multi motor layout mode allows each wheel to be individually adjusted, and the idea of individually adjusting the torque according to the situation is also novel enough. It is on such a basis that we can achieve what was once considered a contradiction. From this point of view, this is not a bad thing. 2 the new crown epidemic undoubtedly broke the plans made by many people last year, the same for car companies. With the cancellation of the 2020 Geneva auto show, many new cars will be released online. Among a bunch of heavy-duty new cars, Audi e-trons Sportback (hereinafter referred to as e-trons) just released by Germany is the most interesting. Although it is not the most sporty car in the brand, Audi with s logo is not good at it. The maximum power of 503ps and the maximum torque of 973n · M can meet your needs of happiness and immortality. I know that the pictures are not exciting enough. My German friend specially made a 44 second video. The scene is very simple. It's a snow slope. There are not many people, just a driver. The plot is not complicated - climb up, but vividly show a new generation of technology. After watching the video, I believe you will be shocked by Quattro technology of the next era. Some Internet age friends may also think of the classic Audi advertisement of the last century. What is the gap between new and old technologies? Is this a special effect or is it a real "curative effect"? The chief designer of reform and opening up and many goblins have said that "time is money", so let's say the conclusion directly. In the 2.0 era, Quattro is mainly based on pure electric technology, and the torque distribution can be easily realized through the motors arranged separately at the front and rear axles. There are three electric motors arranged on Audi e-tron s, two of which are located on the rear axle. They are 370kW (503ps) and 973n · m mentioned above. However, passion can not last long. E-tron s can only make your brain congested for 8 seconds. Highlight: electric vector torque distribution function, which can distribute torque actively and completely variable. OK, I know it's not human language. Let's analyze it. First of all, in most cases, it is backward driving. It's true that Audi, which has always maintained a vertical front-end mode in the era of fuel vehicles, has instead become a rear-end driver. From the perspective of "efficacy", Quattro's working logic and ESC body electronic stability system complement each other. However, ESC relies more on braking to achieve the goal, while the next generation Quattro relies on increasing and reducing torque to achieve the goal. Help in bending by adjusting the torque? Doesn't that sound like driving fun. That's right, that's what Quattro is looking for in the next era. That is to say, it is more fun to drive while improving the stability. That is to say, we should take care of both fish and bear's paw. The specific opening methods are: 1. ESC stability control is set to "motion"; 2. Dynamic processing system is selected to be set to dynamic mode; 3 Zahuan: in this way, the electronic system will make the electronic stability control (ESC), drive control unit (DCU), electronic chassis platform (ECP) and power electronic control unit cooperate with each other through wheel speed, g value offset, suspension travel and other parameters, so as to help the car owner complete the cornering action. Yes, in the future, in addition to the stability of the four-wheel drive, it will be easier to enter the corner, and even complete the drift, which is not contradictory. Moreover, the German said that "the reaction and adjustment time of the whole system is only 30 milliseconds, of course, it is seamless to match the existing ESC system.". Of course, there is no media experience at present. We can only wait to see whether it is true or not. 00:00 play 00:00 / 04:43 super clear full screen switch more wonderful videos, in the car home video channel ● this year is the 40th anniversary of the birth of Quattro, there will be a large number of commemorative activities, "Oreos" can be ready to celebrate. ● about 45% of Audi's new cars in 2019 are equipped with four-wheel drive system, most of which come from Changchun factory and San Jose Chapa factory in Mexico; ● the idea of using torque to control vehicle attitude is not the first one of Audi, but has been used by other brands before. But just like cooking, each school has different styles. In the future, it depends on what the German "Chef" thinks "a little seasoning" is The mechanical four-wheel drive structure that has been used for many years is like today's highly sought after Leica camera, while the pure electric four-wheel drive may be today's mobile phones with various repair app, it is difficult to evaluate who has higher fun, because the direction is not the same; the full text summary: with the change of times, technology is constantly developing. On the other hand, people's car demand is changing quietly. Today's consumers are becoming more and more rational. The performance of getting rid of difficulties is not very useful for us who spend most of the time driving in the city. Instead of wasting more fuel, it's better to replace it with stable driving. This is also the development direction of many four-wheel drive technologies. With the rapid development of pure electric technology, it is easy to distribute the torque between bridges and wheels by means of electric motor. On this basis, it is not difficult to achieve the ability of getting rid of difficulties which can only be achieved by the previous Japanese hard structure. What needs to be considered is the protection and endurance, which is also the direction of new technology development.