Automotive Black Technology Chapter 540: : High-performance research and development results

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Li Fanyu deeply believed in the concept Xu Fufang said.

China's automobile market is late in development and not very mature, and there is basically no automobile culture to talk about. In this way, a large part of consumers are irrational when choosing cars.

In fact, as a pickup truck whose working nature is far greater than its driving nature, a fuel-efficient and powerful diesel engine is the best choice. Excluding some extremely cold northern cities, the diesel version of the pickup truck definitely has advantages over the gasoline version.

Even if there is a problem with the oil, as Xu Fufang said just now, it is just that the cycle of changing the oil filter and cleaning the carbon deposits is shorter than normal.

But if everyone just doesn’t buy it, there’s nothing you can do about it.

Li Fanyu has experienced two times and spaces and has a good understanding of the consumption habits of the Chinese automobile market. Before this, he had actually done a lot of things to compromise the market. Some changes have been made to the several models currently on the market from Zhengxin compared to the original versions.

But I still didn’t expect that diesel power would hit the streets this time...

This is very sad.

It seems... we have to take time to give the market a correct view...

Li Fanyu touched his chin and thought this way.

After keeping this matter in mind, he put down his hand and said, "Okay, I don't care about this now. Why did the four of you come together? Are all the projects in your hands finished?"

"Hey!" Hearing his question, Liu Qing put on a smile, "Didn't I tell you just now, we are taking a break."

"Okay Qingzi, don't sell things to him." Xu Fufang smiled and shook his head, and said to Li Fanyu: "When have you ever seen our four R&D projects terminated? Today is Ruizi's project We need to come here to help.”

Li Fanyu asked curiously: "What help?"

Xu Fufang smiled and said: "Ruizi has been working on a high-performance version of the A4. This guy called us last night and said...hey, let this guy tell you himself."

Seeing Li Fanyu's eyes on him, Wang Rui bared his teeth, stood at attention and saluted playfully: "Brother Fan, I have lived up to my expectations. After leading the four groups to fight hard for five months, I finally got something." Breakthrough! ”

Li Fanyu used to be a jerk, "Don't take credit, just focus on the important points!"

"Hey, Brother Fan, I modified our A4..."

"Aren't you **** making modifications all the time? Where's the car?"

"The car is at my research institute. I came here today to do a computer simulation test."

"What's the result?"

“You’re here just as I’m about to start, but you haven’t even had time to do it yet...”

Wang Rui always loves to show off.

Unlike the three top students who often communicate with me about their research and development progress, this kid always likes to hold back his ultimate moves. Often no one would be seen for more than ten days, and when he appeared again, Li Fanyu would guess what he had done.

For this matter, Li Fanyu tortured him countless times.

Wang Ruike has been working on the development of high-performance versions of some Audi cars for a long time. With sufficient funds in the R&D center, he led four teams and spent a lot of money on it. Because car performance modifications are not allowed in China, the research and development conditions are very harsh. Many materials and parts required for the development of some high-performance versions need to be customized abroad.

Just because it was said to be a 3.0LV6 engine that was installed on the A6 before, Li Fanyu remembered that these guys had applied for more than 6 million in R&D funds, not to mention the things that needed to be used on the body. Things like ceramic brake discs and carbon fiber custom parts.

I have spent more than 70 million yuan, and now I have finally achieved some results. Li Fanyu has great ambitions,

"Ruizi, you are finally useful!"

Seeing the expression on Li Fanyu’s face as if he was happy to see his dog learn to use the toilet, Wang Rui felt a mouthful of blood welling up in his throat...

The current simulation test equipment in the R&D center is quite complete. Previously, it was considered that the cost of actual vehicle testing was too high and the cycle was too long. Anning specially introduced a complete PSAM data simulation system from Germany.

Wang Rui came here today with a data package to verify the performance parameters of the A4 high-performance version after the overhaul.

Li Fanyu followed the four people to the data laboratory, entered the data into the system with them, and started testing.

The main thing today is to measure the power parameters, and Wang Rui has made countless modifications to the V6 engine before, and the data package has been established very well. So it only took more than forty minutes for a set of data to appear on the computer screen.

Seeing this set of eye-catching data, Liu Qing clapped her hands excitedly: "Theoretical maximum output power, 350Ps, 245KW. Theoretical maximum torque, 480Nm. Hey, it looks good, Ruizi. My brother is awesome!"

"That's a must! In addition to cooperating with Brother Fan on new car research and development for more than half a year, all my hard work has been spent here. Who knows what happened to me and that V6 engine!"

Looking at Wang Rui's ugly face, Xu Fufang rubbed his head hard, making his messy hairstyle look more like a chicken coop.

But this made Wang Rui shudder even more.

But he really has the capital to be stubborn; in the past four months or so, it is not an exaggeration to describe his R&D attitude as stubborn.

Just in terms of power alone, this product took a lot of effort.

He improved the material strength of the V63.0L engine previously used in the high-end A6, performed a squeeze-type cylinder expansion, and added a turbine system.

But it is not just as simple as adding a turbine. In order to increase the performance of the engine to a greater extent, and strive to better integrate the turbocharging system with the engine, this guy made some bold efforts with the determination to fight to the end. the design of.

The entire development process has gone through six major changes and more than 70 minor adjustments and upgrades.

The principle of the turbine system is actually to recover the hot exhaust gases emitted by the engine and then put them into the cylinder to increase the in-cylinder air pressure. The specific process is to use the exhaust gas emitted by the engine to impact the turbine installed in the exhaust system to rotate this part of the gas at high speed for compression, and then force this part of the compressed and cooled gas back into the cylinder.

Since the power of the engine is directly proportional to the air intake volume, the increased air intake volume can increase the engine power.

The principle is simple, but in order to maximize the role of the turbine and maximize engine performance, there are many ways to do it. There is a lot to be done in every part of the entire work process.

Take the design Wang Rui has on hand;

The engine cylinder exhaust port and the supercharger air inlet are designed to be closely spaced. In this way, when the turbine is working, the exhaust gas generated by the cylinder can be recovered as much as possible, thereby increasing the pressure in the cylinder and enhancing the power.

The air inlet is also designed in a spiral non-mainstream shape, so that when the high-pressure gas compressed by the turbine enters the cylinder, it forms a rolling air flow, making the combustion in the cylinder more efficient and complete.

On this basis, this guy madly added an intercooler to each group of cylinders, so that the high-pressure gas in the cylinder has a lower temperature, a higher density, and more oxygen content, further increasing the compression ratio. , allowing more complete combustion in the cylinder.

"Brother Fan, how are you doing, are you awesome?"

Wang Rui turned sideways and raised his chin at Li Fanyu, waiting for this guy to praise himself and prostrate himself under his jeans.

In the more than a year since Zhengxin was founded, Li Fanyu has been called the number one person in domestic automobile research and development by some media. Therefore, appreciation from the first person is undoubtedly a very satisfying thing for vanity.

But after waiting for a long time, he did not receive a response.

Seeing Li Fanyu staring blankly at the computer screen with wide eyes, Wang Rui pushed him gently, "What's wrong, Brother Fan? Are you scared by the data?"

No,

The reason why Li Fanyu was stunned was because just now, there was a cold reminder from the system in his mind.

After nearly half a year, the system has once again accumulated enough research and development points - it is about to be upgraded!