When Shen Danqing and Guo Dong walked into the small conference room, the engineers in the conference room all stood up and saluted Shen Danqing: "Boss, morning!"

The same engineers are also divided into grades, just like the grade regulations formulated by the state. High-ranking engineers sit at the oval conference table, while the rest of the lower-ranking engineers can only sit in as observers. This society is like this, there are hierarchies everywhere, but it is precisely because of hierarchies that there is order and the motivation for progress.

"Everyone sit," Shen Danqing, who was in a good mood, said loudly. He said as he walked over to the chair of the table and sat down. Everyone sat down when they saw the boss sit down.

Shen Danqing didn't talk nonsense, and started directly: "Today is the first automotive powertrain technology seminar, and I have a few unique ideas to tell you.

Since the German scientist Otto invented the four-stroke cycle internal combustion engine, the automobile engine has been developed according to his technical theory, and for more than a hundred years before the nineties, the engine was a purely mechanical thing.

In the nineties, with the progress of microelectronic technology, it began to use microelectronic technology to control and manage the engine, which is typical of the popular multi-point EFI technology. Other than that, it doesn't seem to be. Of course, there are some other technologies that are being worked on by car companies, but they haven't been applied yet, so we don't know.

There is an inertia in everything, that is, future generations are always accustomed to the experience of their predecessors and do not use their minds to improve. This is certainly unacceptable.

Today, I would like to give you a little inspiration so that you can have a new understanding of engine technology that has been passed down for more than 100 years and improve it.

The first thing I want to talk about is camshaft linkage technology, which is a purely mechanical technology, with a complex structure, and the control of air inlet and outlet volume is relatively rigid, so we can only adjust and set it in advance. Due to the complex structure, it needs to be lubricated with oil, and if it is not good, it will cause the oil to burn.

My first idea was to get rid of this complex and outdated thing. Instead, the intake and outlet valves are controlled with solenoid valves. By replacing purely mechanical technology with microelectronics, we can effectively manage the intake and exhaust gases. Moreover, the new system is not a mechanical movement, so oil lubrication is not required, so oil burning is avoided. ”

Since this was his own original technology, Shen Danqing was afraid that everyone would not understand, so he specially asked: "Do you understand what I mean?"

The so-called temporary cramming, the designers present learned that the next research topic is the automotive power system, so they all temporarily read the relevant information, and naturally understood the advantages and disadvantages of the camshaft linkage technology and the solenoid valve control valve technology proposed by the boss. Therefore, as soon as Shen Danqing asked, they replied in unison: "Understood."

"Okay, everyone understands, now I'm going to talk about the second idea: direct injection technology. As far as I know, this technology has already been developed by car companies, and we want to get ahead of them and grab the patented technology.

As we all know, the first key indicator to measure the performance of an automobile engine is the compression ratio of the engine.

Because the ignition point of gasoline is too low, ordinary gasoline engines, when inhaling the mixed gas and then compressing, often do not burn first when the cylinder piston runs to the apex. Therefore, this process of combustion, in fact, is not ideal, so it causes low combustion efficiency, and even causes detonation, which is easy to damage the engine. And its combustion efficiency is unbelievably low, less than 30 percent.

We all know that the ignition point of diesel is higher than that of gasoline, so diesel can withstand higher temperature compressed air, and naturally, the compression ratio of diesel engine is far better than that of gasoline engine. Its combustion efficiency is also 15% higher than that of ordinary gasoline engines, which is a remarkable statistic, and no scientist has yet achieved a 15% increase in the combustion efficiency of gasoline engines to the point of equivalence with diesel engines.

Let's get back to the beginning: what are the benefits of direct in-cylinder injection?

Let's imagine that there is such an in-cylinder direct injection gasoline engine, and when the gasoline engine sucks in air and compresses it, because there is no atomized gasoline, it will not burn even though the temperature is very high.

And because we use microelectronics to manage the solenoid valve control valve technology, we can artificially suck more air and compress it, so that the temperature of the compressed gas in the cylinder will be higher, but because there is no atomized gasoline, it still will not burn. Does this improve the compression ratio?

When the cylinder piston is about to move to the apex, at this appropriate time, we use software technology to control the fuel injector, the cold gasoline is injected into the cylinder, because the atomized gasoline at this time is still relatively cold, so it will not burn at once, and when it spreads into the high-temperature compressed air, the high-temperature air will ignite the atomized gasoline. In this way, it is the next process of combustion and expansion of the mixed gas to do work.

In this, I talked about the third technology, the technology of non-electronic ignition systems. This technology is not simple, and the most likely problem for ordinary vehicles after driving for a period of time is the electronic ignition system. This is because the wire is easy to age at high temperatures, and the metal copper wire is also easy to age after a long period of use.

And there are also very troublesome practical problems, ignition system problems, no matter how clever the master can not find the problem at once, because this fault symptom is very similar to the oil circuit system, it is difficult to judge. Therefore, they generally use the screening method. In this way, if you spend time, you will have to spend a lot of unjust money.

But if we get rid of this annoying ignition system, everything is much simpler, and the car is less likely to break. Isn't it beneficial?

I will talk about the fourth technology, this technology is a material technology, specifically coating the inner wall of the cylinder with a layer of rare earth alloy material with high temperature resistance and excellent lubrication performance.

We all know that the surface of mirror metal is not really flat, and if you look at it with a high-powered electron microscope, you will find that its surface is the same as the pit. That's how I discovered this secret, so I came up with the idea that the finer metal atoms are the better lubricating of the metal mirrors.

The answer is yes, as long as the metal atoms are fine enough, then its surface lubrication can match and exceed the lubrication effect of using lubricating oil.

The only metals we know in nature that can achieve this effect are rare earth metals. Needless to say, to refine the metal we need, the price will be very high, so we can't use this high-priced alloy to make the entire cylinder liner, so I thought of ion sputtering technology, which coats the inner wall of the cylinder with a layer of this alloy.

Using this technology, if high-precision machining technology is applied, the gap between the cylinder wall and the piston ring can be made smaller, much smaller than that of other companies' automobile engines. Moreover, if you don't use engine oil for lubrication, you can avoid burning oil. If you add the first technology I just talked about, you can completely avoid burning engine oil.

I'm not boasting, but these two technologies are indeed very remarkable. This is the first technology, thanks to the use of solenoid valve control valve technology, we can accurately control the intake and exhaust volume if we add time to the volume of the intake and exhaust ports, and we can also accurately control the amount of fuel injected by the direct injection technology, and when the two are combined, we can create a gasoline engine with the highest combustion efficiency and the highest compression ratio. This is not a delusion, as long as you work hard, you will be able to do it. ”

After talking for so long, Shen Danqing's mouth was dry, so he stopped speaking, took a few sips of tea fiercely, and then began to preach again: "Engine technology, I will talk about these four points for the time being, you have better ideas, and then add them yourself." Let's talk about transmission technology.

Transmission technology is the shortcoming of our country, which everyone should know. Because the quality of the transmission is directly related to the driving experience, with a good transmission, the car will drive smoothly, which we commonly call is to drive more cool.

Transmissions are divided into manual and automatic transmissions, and the world's largest automobile companies have developed or applied automatic transmission technology. This is a must-have for high-end luxury cars.

All the models of our Tang Dynasty Automobile Company are high-end luxury cars above the B-class car. Naturally, there should be an automatic transmission.

However, all the technologies suitable for automatic transmission are being studied by companies, and some have already begun to be applied. For example, the CV.T continuously variable speed technology that Japanese companies are researching, and the AT transmission technology that European and American companies are advocating.

The full English name of AT is automatictransmissionAutomatic transmission is composed of hydraulic torque converter, planetary gear and hydraulic control system, which achieves variable speed and torque through hydraulic transmission and gear combination. Among them, the hydraulic torque converter is the most important component of the AT, which is composed of pump wheels, turbines and guide wheels, and has the role of transmitting torque and clutch.

There is also the DCT dual-clutch technology that Volkswagen is researching.

The above automatic wave technology is a technology with a relatively bright application prospect, so major automobile companies have invested heavily in research. Therefore, they have erected a thick technical barrier in front of us, and it is too late for us to enter at this time.

However, there is another automatic wave technology that is not recognized by the mainstream, and that is the AMT mechanical automatic transmission technology. In short, it is to use microelectronics technology to control the mechanical system instead of human gearing.

This technique is relatively simple compared to the previous technologies. It can be improved on the basis of the MT manual file.

It can be said that as long as it is a human can do the gear action, we can gather the most appropriate gear timing, and after many experiments, we will be able to achieve a better gear experience than ordinary people.

And another advantage is that with the right design, we can easily perform manual automatic conversions.

In view of the above situation, I decided that we will only use this automatic wave technology in our future transmission technology. Don't be distracted by you, give me a single-minded look at AMT autowave technology.

I'm done talking, and now it's your job, adjourn!"

After Shen Danqing announced the adjournment of the meeting, regardless of the discussion in the conference room, he walked out of the conference room without looking back. He went back to the company, he did what he had to do, and naturally he didn't care.

To be continued......