Chapter 24 Kick the door open to VVT technology
Liu Mei helped Jin Xiaoqiang and them go to the gate of the school and asked for some food to take out, but when they came back, they happened to see Jin Xiaoqiang explaining another technique to Liu Xiaoliang.
Liu Mei also admired the attentive expressions of the two, she was originally from this science and engineering school, so she still knew some of the atmosphere of the school.
Nanyang University of Technology, although it is not the kind of famous university that can be called out in the 211 project, is still quite famous in science and engineering, especially in automobile engine design.
When Jin Xiaoqiang was in his last life, it was not smooth to find a job in the city after graduating from university, and then he happened to be looking for someone from a car company in the south, so he went over to make a fuss.
I didn't expect it to be five years, but unfortunately private companies also have the disadvantages of private companies, plus when he was in his last life, he was also a person with relatively average qualifications, so he didn't make a name for himself.
But after being reborn, it was different, the ideas and designs in his mind were all things he had personally seen in his previous life and had been tempered on all kinds of cars.
And these things can be said to be quite leading for the Celestial Empire engine design industry, which is now in its infancy.
And when he went to repair the car later in his previous life, Jin Xiaoqiang had also become a complete technical control maniac, and now he explained the technology to Liu Xiaoliang, which was also extraordinary.
Liu Xiaoliang has been pestering Jin Xiaoqiang to tell him about the CVVT technology that is more commonly used in the car engine, and this technology, to put it bluntly, is the breathing technology of the engine.
This vvt technology, the Chinese name of both variable valve timing technology, is a technology developed by Fiat in the sixties and seventies of the last century, but in the end it was widely carried forward in the hands of Yu himself.
Honda, in particular, has made perfect use of this technology, and when Honda entered the international market in the last century and Toyota fought to seize the market, this technology has added a lot of points to the Honda brand.
With the development of the automobile industry, the reduction of oil resources, and the demand for environmental protection of human beings, the development concept of engines in this century will never return to the golden development period of engines that never need to consider oil prices and displacement in the seventies of the last century.
The development concept of engines in this century is that the mass is getting lighter, the displacement is getting smaller and smaller, and the power requirements are getting bigger and bigger......
This requires major automakers to rack their brains on engines, develop and use more advanced technologies.
Among them, the most perfect use of this technology is Honda's VTEC engine, this technology has been used in many Honda models since the late 80s, from Accord to Civic, and has been used for 20 years.
However, Honda cars equipped with this technology have been marketed around the world for more than 20 years, but they have been reluctant to introduce this technology to the Celestial Empire.
And this VVT technology will also be popularized in the Celestial Empire in the next few years, but Jin Xiaoqiang remembers very well that when this technology is really popularized, it will be popularized in the late 2010s.
It wasn't until the two car companies, Ricky and Ligie, made a breakthrough in technology that other automakers saw hope.
However, Jin Xiaoqiang, who understands the internal situation of the industry, is also quite uneasy about the so-called completely independent VVT technology, because the core part of this technology is a series of data in the ECU, and as far as he knows, those domestic car manufacturers, their so-called VVT technology, is generally bought from abroad......
But now Jin Xiaoqiang began to explain the VVT technology of the engine to Liu Xiaoliang, and what he hit in his stomach was a very secret little idea, which only he knew, but it was not the time for a showdown with Liu Xiaoliang......
"This VVT technology, to put it bluntly, is when the engine is running, through the electronic control unit, according to the data displayed in various parts of the engine, with the operation of the engine, constantly adjust the opening and closing time and angle of the intake valve on the cylinder, so that the maximum amount of air can enter the cylinder, and gasoline to achieve an optimal mixing ratio, combustion, release energy. In this way, the combustion efficiency can be improved, and the purpose of fuel saving can be achieved, and the corresponding more powerful power ...... can be obtained."
Jin Xiaoqiang began to popularize the knowledge of VVT to Liu Xiaoliang at this time, in fact, these things were explained by the teacher in class when they were in school before.
It's a pity that after all, everyone has never seen the real VVT engine, so everyone's impression of this technology has been stuck in the stage of books, and everyone is not very clear about how this technology is realized.
Jin Xiaoqiang explained to Liu Xiaoliang how to add a few ingenious devices to the engine, and adjust the opening and closing angle and time of the valve back and forth according to the rotation of the engine.
This Liu Xiaoliang was originally a technical maniac, and for the mechanical aspect, he did have his own uniqueness, and now when he heard Jin Xiaoqiang's explanation, he immediately understood the CVVT technology that Jin Xiaoqiang said.
After seeing Liu Xiaoliang's red face expressing his understanding, Jin Xiaoqiang did not hide his surname, so he said to Liu Xiaoliang.
"Okay, now that you know the technology of CVVT, now I am telling you about DVVT technology, and this technology, in the next few years, will also become the mainstream of engine technology development."
"Oh? What else is DVVT technology? ”
The current network is not as developed as in later generations, and the consultation is relatively asymmetrical, this DVVT technology, in fact, was born a few years ago, but there are many people who have never heard of this technology in the Celestial Empire.
"Of course, if there is SOHC, of course there will be DOHC, and now with CVVT, of course there will be DVVT."
"Haha, okay, Xiaoqiang, don't sell it, talk about it quickly......"
Liu Xiaoliang is a little crazy now, he feels that what he has learned from Jin Xiaoqiang in the past two days is really not much weaker than what he has learned in four years of college.
In the four years of college, he learned some basics, but the knowledge that Jin Xiaoqiang brought to him in the past two days made him feel that he had completely made a breakthrough in his cognition and understanding of the engine and reached a new realm.
For example, he thought that the engine was doing that, and everybody was doing it.
But as soon as Jin Xiaoqiang said this, he realized that this engine could still be built like this? And the benefits brought by this kind of creation turned out to be so many?
This is equivalent to opening up a world completely different from his previous cognition for Jin Xiaoqiang!
"Hey! I said, you two, don't you eat? This meal is already cold! ”|
Seeing that Jin Xiaoqiang and Liu Xiaoliang had no intention of stopping at all, Liu Mei couldn't help but snort beside him, and then said.
Just now she went to buy a lot of takeout for the two of them and came back, but when she came back, she saw that these two people were arguing very well, and they were chatting about technology in full swing.
Liu Mei didn't want to interrupt the two men who were focused, so she didn't make a sound, but now that she saw that these two people had finished chatting about this paragraph, she didn't mean to stop, so she couldn't help but say nothing.
"Oops! It's past six o'clock, huh? Are you really hungry? Xiao Liang eats something first, and the rest will be said when he finishes eating......"
Jin Xiaoqiang heard Liu Mei's reminder, and only then did he come back to his senses from the state just now, this time it was more than six o'clock, and he came from the iron factory at more than eleven o'clock in the morning, and he has been talking about these technologies with Liu Xiaoliang here, but he didn't expect to talk about it for an afternoon, and now it is more than six o'clock.
Liu Xiaoliang was also hungry at this time, so he immediately stopped being polite, took two lunch boxes from Liu Mei's hand and began to eat.
Jin Xiaoqiang looked at Liu Xiaoliang's appearance that he couldn't even eat, and knew that this kid must still be immersed in the world of the kind of technology he described to him just now and didn't wake up, so Suo didn't remind him, so he turned around and looked at Liu Mei with a smile and asked.
"You haven't eaten either, have you? Come on, let's come along. ”
"Humph! You boss don't open your mouth, where do I dare to eat first! ”
Liu Mei pretended to be angry and complained to Jin Xiaoqiang, obviously she was a little dissatisfied with Jin Xiaoqiang's complete immersion in academic discussions just now, and neglected to eat.
Jin Xiaoqiang didn't say much to her, took two lunch boxes and ate them......
quickly finished eating, and then Jin Xiaoqiang was pulled over by Liu Xiaoliang and began to explain the DVVT technology.
After the DVVT technology is introduced, it is actually very simple, to put it bluntly, on the basis of the CVVT technology, a technology is added to adjust the opening and closing time and opening and closing angle of the exhaust valve.
On the engine, there is no need to make too many changes to the original things, but on the ECU, a lot of data needs to be recorded and a series of adjustments are made.
For Jin Xiaoqiang, who has been ahead of this era for more than ten years, these technologies are actually not worth exposing at all, but for Liu Xiaoliang, these technologies are simply a breakthrough in the revolutionary surname.
You must know that the current domestic engine development team, not to mention what CVVT and DVVT, even a DOHC has not been too clear.
Now, if he masters these two different technologies, then as long as he is given enough time and resources, he can come up with a 4G63 engine that is not weaker than the original Red Top Evo.
At this time, Jin Xiaoqiang simply sat on the sidelines, quietly looking at the churning light in Liu Xiaoliang's eyes, called ambition......
A great feeling of 'cultivation' quietly came out of Jin Xiaoqiang's heart, a great engine cow in the future, it is very likely that he will be 'first trained' by himself now......
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