"First of all, our second-generation ECOBOOST engine uses our second-generation twin-scroll single-turbo turbocharger, as for the technical parameters of this turbocharger, I think you have already understood it when you participated in BMW's new car launch, so I will not introduce it in detail."

Jin Xiaoqiang's words made the reporters in the audience laugh, obviously he was reminding everyone, don't look at BMW's screaming, but in fact, their turbocharger is still provided by us.

This is the preference of our Celestial Empire people, our Celestial Empire people generally like to be low-key and don't like to be too public, so they often leave a humble impression.

But in the eyes of modern business concepts, this is simply a stupid old hat, there are good things to be hyped up, and now it is no longer an era when the aroma of wine is not afraid of deep alleys.

And this second-generation turbocharger is indeed developed by Huayang Power, and now BMW has used it, and it is easy for people to have a better impression of this turbocharger when they take it out and say it again, after all, BMW's brand can be placed there, and they will not use garbage things.

Since they use this turbocharger, it is enough to show that this turbocharger does have its own uniqueness.

"The second thing I want to introduce is the changes we have made in some details of the engine, first of all, I want to introduce the electronic valve lift control technology that we have added to the second generation ECOBOOST engine, which can make the control of our variable valve timing technology more precise, so as to maximize the torque output of the car engine."

In fact, this electronic valve lift technology has existed for a long time, and the best one played in the early years was Japan's Honda, when they combined this electronic valve lift technology with variable valve timing technology, and then it became their classic VTEC technology, and it has been used until now, and it has endured.

Later, BMW, Audi, Mercedes-Benz and other large companies also developed this technology and used it in their engines. And the combination of these two technologies has been carried forward, but this technology has its own name everywhere.

Later, the one who really took out this set of technology and chewed it again, and also got good results, was BMW.

It is their precise data analysis and computer control that makes this electronic valve lift technology particularly important. In particular, the combination with variable valve timing technology makes it even more commensurate.

It is BMW that has instilled such a concept in everyone, that is, in the past, everyone used variable valve timing technology, just to better control the time of valve opening and closing, and has achieved the purpose of better intake and exhaust, so as to achieve the ultimate goal of fuel saving, but now with the support of electronic valve lift technology. This variable valve timing technology can not only better save fuel, but also control the torque output more accurately, so that the torque output becomes more extensive, so as to achieve the purpose of making the car more powerful.

In this way, the electronic valve lift technology was separated from the variable valve timing technology, and the two systems were divided into two and more subdivided.

And now Jin Xiaoqiang has divided this technology from their variable valve timing technology, which shows that Huayang Power has made great progress in on-board electronic control, and in the subdivision of engine work. They have made another breakthrough.

"With the intervention of this system, our on-board computer will be able to distinguish between the optimal idle and lean combustion zones, and the optimal fuel consumption and exhaust control zones. and the optimal torque control area, which is the three most important areas for vehicle performance......"

As soon as the reporters in the audience heard Jin Xiaoqiang talk about these key points, they knew that he was not lying, and it seemed that they really mastered the key to the control of the electronic valve lift like BMW.

"How's his performance?"

A German reporter asked a little unwillingly, knowing that this was BMW's unique skill before.

"The lift of the intake valve can be infinitely variable from 0.3 mm to 9.9 mm."

Isn't this already comparable to BMW's figures? You must know that there are not many companies that can control the electronic valve lift so accurately, and there is really no second company that can do it besides BMW?

Although a little unwilling, the Germans still accepted the facts, fortunately they did not surpass BMW, and the Japanese reporters on the other side were red-eyed, Honda has been leading in this field for so many years, how to think that once it was knocked to the ground by Huayang Power, it is really unwilling!

"It's also about improving driving comfort. We also developed a set of piston pin offset and crankshaft offset technology for this core engine. The main purpose of developing this set is to reduce noise, as we all know that when the piston reaches the position of the top dead center and begins to move downward, due to the gap between the piston and the cylinder wall, the piston will move from the right side to the left side and produce a certain impact sound. This phenomenon is also known as cylinder knocking. In order to prevent the generation of knocking cylinder, usually when designing the position of the piston pin, it deviates from the main push surface side of the piston by a maximum of about 2 mm, and when the piston is reversed, the piston will be tilted in the cylinder barrel, so as to play the role of early reversal, so as to reduce the knocking sound, and the offset of this piston pin is almost invisible to the naked eye. But this will waste a certain amount of power, and will also produce too much waste, and we use the piston pin is a negative offset design and so with the crankshaft will also take a certain offset design, so that it will greatly reduce the sound of knocking the cylinder in the work, and make a considerable contribution to the fuel saving of the engine. ”

Jin Xiaoqiang's explanation on the stage made the German reporters in the audience even more gloomy, to know the piston pin offset and crankshaft offset to reduce the knocking sound, but the Germans have always been proud, although this process may not be good for the performance of the engine, but this is the highest embodiment of the German finishing process, and it is also the reason why BMW's engine is praised for its luxury, which is reflected in such small details, our sound noise control is good.

But now it seems that Huayang Power also has such a finishing ability, and it is impossible to say that people plagiarize, because BMW used only positive offset design, while Huayang Power used negative bias.

No wonder Jin Xiaoqiang wants to list this car as a luxury high-end car, to compete with Mercedes-Benz and BMW, it seems that from the technical details, people do have the capital to compete with BMW and Mercedes-Benz.

"The integrated design of the main bearing cover and block minimizes the number of parts and improves the strength of the engine, and most importantly, the arc wire spraying technology we use on the inside of the cylinder wall of this engine."

Speaking of this, Jin Xiaoqiang paused, and the reporters in the audience also pricked up their ears, everyone has heard of this arc wire spraying technology before, but the difficulty of this technology is relatively large, and the cost is relatively high, so there are not many real large-scale applications, and now Huayang Power actually tasted crabs, of course everyone wants to know, how they stuttered,

In the past, Audi and BMW have launched the so-called pure aluminum engine, in fact, those are just a gimmick for external publicity, everyone knows that in fact, there was no pure aluminum engine at that time, because it was not good in the cylinder block.

You can use aluminum alloy as a cylinder head, but as a cylinder, it is absolutely not, because the strength of aluminum alloy is really not enough.

And the piston is made of materials are generally steel products, if the aluminum alloy material is used for the cylinder block, then there will be different friction coefficients, the temperature can not be adjusted, and finally there will be a series of problems such as burning engine oil and even pulling the cylinder, which is also the main reason why the early Audi is easy to pull the cylinder.

Later, Audi used the method of adding a layer of steel cylinder liners to the inner wall of the cylinder to solve the problem, and BMW and other companies followed suit, which became the earliest so-called pure aluminum alloy engine.

However, the use of cylinder liners will still increase the weight of the engine, which is very unfavorable to reduce the weight of the body to achieve the purpose of fuel saving, so many people are thinking about new methods, and this arc spraying is a good way.

"We use a high-temperature arc to dissolve the iron, and use high-pressure air to evenly spray the iron solution onto the inner wall of the aluminum alloy cylinder block, only a thin layer is needed, which saves about half of the weight compared with adding a cylinder liner, which makes the engine have a great improvement in fuel saving performance and thermal conductivity. And the cost can also be effectively controlled. ”

This is the benefit of the new technology, you must know that if you use steel cylinder liners, not only the production requirements are high, but also the processing accuracy will be very high, so the overall cost is not much lower than arc spraying, and the use of arc spraying technology, can not only reduce costs, but also improve efficiency, why not?

The reporters in the audience listened to it fascinated, and many people began to sigh at this engine, although Jin Xiaoqiang has not yet announced the final data of this engine, but from these details, everyone has noticed that this is definitely not a simple goods, it can definitely be called a high-end luxury, and it can definitely be compared with Mercedes-Benz and BMW.

With the technical support of these details, this time the real competitors of the BMW 7 series and the Mercedes-Benz S600 series can be said to be really coming, and you must know that Jin Xiaoqiang has not yet released the performance data of this engine, you must know that Jin Xiaoqiang has always been a big master in this regard.

And don't look at the details he said in front of him are inconspicuous, but if these details and technologies are integrated together, then the ultimate data of this engine can definitely go to a big level. (To be continued.) If you like this work, you are welcome to vote for recommendation and monthly passes, and your support is my biggest motivation. )