Today, let's talk about a topic that is of general interest to car enthusiasts. It is to analyze and compare the advantages and disadvantages of turbocharged engines from the perspective of the aftermarket. Make a good reference and reference for listeners who have already bought a car or are about to buy a car.
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Engine displacement, we choose the most typical 2.0 liters in the mid-size car
For engine manufacturers, we also select the best-selling two or three famous brands in the Chinese market and the world market, Volkswagen (Audi), and Toyota (Lexus).
From the cognitive point of view of technology and riders, use the way of solving the cows and telling the truth to everyone. Let’s see if the turbo technology used by the German cars of Volkswagen (Audi) is like itself. As publicized, is it top technology?
At the same time, what are the characteristics of the same-displacement turbocharged engine that Toyota (Lexus) equipped?
Some friends once laughed and compared the two cars together. It is the ghost of the car industry (Japanese) God (German) battle. Well, let's solve the ghost skin!
Topic 1, Comparing the Motivation and Background of Turbocharged Engines
Due to various factors (China's national tax policy, anti-corruption, energy saving, etc.), one of the world's largest markets for turbocharged engines is China. Due to the efforts of individual manufacturers over the years, small-displacement turbocharged engines are popular in the Chinese auto market. It also advertises how advanced its turbocharged engine technology is. This manufacturer does not say that everyone Can guess, it is the Volkswagen and Audi from Germany, it is called "God car",
At the same time, due to the popularity of turbocharged engines, our car owners certainly can't avoid turbocharging technology when buying and using cars. Many listeners have been asking questions: Is the German turbocharger advanced and not advanced? Is it the most advanced in the world? Reliable and unreliable?
Today, let's talk about the facts and compare them with the Japanese Toyota turbocharged engines that we usually don't want to see. What are the results?
Topic 2: Advantages and Disadvantages of Traditional Turbocharging Technology for Engines
Advantages: After installing the turbine with a smaller displacement engine, the large power is squeezed out to achieve the purpose of pulling the big horse out of the big horse. At the same time, manufacturers can rely on the low taxation of small displacement engines to achieve reasonable tax avoidance to maximize profits. As for energy saving and emission reduction, how much can be reduced, God knows!
Disadvantages: Although the conventional turbocharged engine can squeeze out more power, the parameters of power and torque are very good, but it has been suffering from such a large power that needs to be obtained after the turbocharger is started. The previous turbine start speed is At around 1800 rpm, the power in the low-turn state is insufficient, resulting in the vehicle starting to be weak, and the SUV off-road vehicle that needs to obtain a larger torque at the lowest possible speed cannot be equipped with a turbocharged engine. Until the turbocharging technology was upgraded, the speed of the turbine start-up intervention was reduced enough to start a large amount of equipment.
Topic 3: Volkswagen (Audi) Turbo Engine Performance
In fact, the application of turbocharging technology to the engine is not a new technology, and Volkswagen does not hold a large number of patents. It is now mentioned that the turbocharged engine is necessary to refer to Volkswagen (Audi), which is really the role of advertising and publicity.
So, let's see how the Volkswagen (Audi) turbocharged engine performs.
EA888 is Volkswagen and Audi's most advanced turbocharged engine in the Chinese market. Its maximum power is 147 kW and its maximum torque is 280 Nm, which is equivalent to a 3.0-liter self-igniting suction engine. It is generally equipped in the Volkswagen Passat, Volkswagen Magotan, and other high-end models, while the Audi q series engine, Audi in the 2.0-liter turbocharged engine application computer to adjust the segmentation press power, set from 132-155-165 The power, as well as the torque of 320-350, the price difference reached 190,000 (38-57 squeeze power to get the maximum profit). These are the representative engines of the God car, according to the actual measurement, its turbine intervention is about 1600.
Just at the Vienna Motor Show, Audi released a so-called new high-power turbocharged engine. Volkswagen Audi said: its peak torque can reach a record of 320 Nm, and the peak power is only 139.7 kW. Obviously, this parameter Another disadvantage of the engine is exposed. The power and torque are in the opposite direction. To achieve high torque, the power must be reduced. However, on this engine, Volkswagen Audi has a new breakthrough: the minimum speed of turbine intervention can be as low as 1,450 rpm, which is indeed a technological precedent in the car.
Therefore, we unfortunately see clearly that the turbocharger technology of the Volkswagen car has been speculating in the cold, just to make a fuss about turbocharged and direct injection in the cylinder, in the engine principle and other engine new technology and know-how There is no application on it, so the actual power is not so fragrant that he boasted!
The German car car looks up to the kitchen, but its turbocharged engine is really so god? Let's take a look at the stone of his mountain, compare it, you can see the clue.
Topic 4: Differences between Japanese Toyota's turbocharging technology and German Volkswagen
Volkswagen has spared no effort in China to implement turbocharging, making money for Chinese riders, earning a lot of money, Japanese Toyota cars from Toyo, and recently launched turbocharged engine models, this is the Lexus NX200T, and Toyota. The Crown and Highlander are equipped with a 2.0-liter engine called the 8AR-FTS. Note: This engine is basically a high-low power.
Let's take a look at the parameters of this turbocharged engine:
The peak torque is 350 Nm, the peak power is 175 kW, and the torque curve platform starts at 1200 rpm.
We are discussing privately, how does this devil's engine achieve such high power?
It turns out that the 8AR-FTS is not like the German car, just making a fuss about the engine itself, blindly relying on the adjustment of the turbine's high and low speed to maximize the power, but cleverly respond to the different speed ranges of the engine, respectively in the engine The low, medium and high states apply three distinct technologies, which not only maximize the synchronization of torque and power, but also achieve an initial lifting speed of only 1200 rpm.
Low speed stage (continuous to high rotation), applying D4S dual injection technology
Medium speed stage, Atkinson cycle principle engine
In the high-speed stage, the double-coil single-turbo water cooling technology is fully utilized.
Based on this engine, the Lexus NX200T accelerates to 7.3 seconds per 100 kilometers, which is even more than the high-power version of the God car Audi Q5 and the Volkswagen Tiguan.
Although the world's major manufacturers have introduced 2.0-liter turbocharged engines with parameters far greater than Volkswagen, such as Ford 180, 350, Land Rover 176, 350, Volvo 239, 400, even the domestically-owned SAIC MG has also launched the 2.0TGI engine. It can reach 165, 350, but Toyota (Lexus) is the most typical and most ingenious one of them. The three technologies use their own responsibilities and play their own specialties to achieve overall improvement and balance, which is enough to kill the German system. Turbocharged engine
to sum up:
In short, we have seen the turbocharged technology of the German car, but there is no breakthrough. The 2.0-liter turbocharged engine made by other brands, including Japanese, is almost all on the German engine. For example, it is equipped. The 2.0-liter turbocharged engine's Lumin's engine can also reach 176 kW and 350 Nm, while Volvo's latest turbo-machined supercharged engine can even reach 239 kW and 400 Nm of peak power.
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