Cast a mouse bogey at Lin Hongfei, so that they can't treat Lin Hongfei's things like other people's things, they don't even consult the owner of the item, they directly requisition, sometimes they will give all the money, sometimes they just give a little symbolism, but in general, you can say that they are for the country, a last resort in the shortage of national funds, or you can say that they are playing hooliganism...... What's worse is that after a few years, when the Republic's finances are rich, they still like to play hooligans from time to time.

"Regardless of whether it is damaged or not, after you go back, tell them, let me personally get the things back, this time you are not allowed to set up any obstacles for me, and then let them take people and money to open our company to pick up the goods, otherwise everyone will be scattered, this thing is a bit high-end for me, although it hurts to throw it away, but it is not to the extent of death, I don't believe that when those researchers hear that such a batch of things have been lost by someone, will they chase them to their doorstep." Lin Hongfei said, with a rogue face on his face.

"You ......" Lin Weiguo pointed at Lin Hongfei and wanted to say something, but in the end he didn't say anything, so he had to sigh heavily, "Alas...... Who made you my son, well, I'll tell them when I go back. ”

said so, but the eyes of both father and son were a little obscene...... The times are always progressing, Lin Weiguo is a good comrade, but when he suffers losses again and again, good comrades also learn to protect their own interests, after all, good comrades are not equated with the words fool and low IQ.

————————————————————————

It will take a while to wait for the above reply, this kind of thing is not in a hurry, taking advantage of this time, Lin Hongfei began to design the gearbox for the W24-cylinder engine. With the help of the computer, the first prototype was quickly produced in parallel with the design...... This is a bit unconventional, usually after the design is completed, after repeated reviews to confirm that there is no problem, the trial production of the sample will be carried out, and Lin Hongfei, a bold and confident guy in himself, dares to do this.

But Sigmund. Mia looked at the strange-looking gearbox in front of her, a little speechless, "This is the gearbox that gave you the engine design of yours?" ”

The gearbox in front of me looks a little weird, which type should it belong to, it's really a little hard to describe, this thing is said to be a manual gearbox. This product does not have a clutch, or more accurately, it does not have a clutch, but has two clutch systems, which is somewhat similar to the dual-clutch transmission theory that has just been proposed in the field of automatic transmission technology;

But to say that there are two sets of clutches, it is an automatic transmission. When changing gears, the driver also needs to manually shift gears, and there is no automatic shift mechanism at all. That's a ...... Sigmund. Mia couldn't help but be worried about the type definition of this gearbox.

Lin Hongfei quickly gave the answer. "I named this gearbox: Mechanical Dual-Clutch Semi-Automatic Sequential Transmission."

"Dual-clutch semi-automatic sequential transmission? Sequential? "Sigmund. Mia was a little surprised, and looked at the gearbox carefully, "Why is it designed like this?" What is the manual gearbox that does not use the cross waveform? Sequential manual transmissions aren't that efficient. ”

The traditional five-speed manual transmission, which is our most common manual transmission, has five gears including reverse, and the shift mechanism looks like a "king" shape placed horizontally. But theoretically, it is the most efficient transmission to perform, and as long as the human nerves and muscles react fast enough, it can kill any automatic transmission in seconds. Even the ZF 8-speed electronic gearbox, which was later used in BMW Mulberry and claimed to be able to change gears in 200 milliseconds, was not good.

The most important thing is that the manual gearbox can jump and shift, such as directly from the first gear to the third gear, or the second gear to the fourth gear, really in an emergency, if you are not afraid of damaging the gearbox, you directly from the high-speed fifth gear to the reverse gear is no problem, the braking effect is unimaginably good, of course, the consequence is basically that the gearbox is wasted.

Unlike sequential gearboxes, they can only upshift step by step, or downshift step by step: first gear up to second gear, second gear up to third gear, third gear up to fourth gear...... The same goes for downshifts. Now, in the field of civilian manual transmission, the serial manual transmission is almost invisible, but this does not mean that the serial type no longer exists, in fact, the sequential automatic transmission has been looking at the existence, and the current automatic transmission is all sequential gearbox, but with the traditional pure mechanical sequential gearbox, the current automatic gearbox is a hydraulic and electro-hydraulic coupling transmission structure, but no matter how the structure changes, the automatic gearbox still belongs to the category of the sequential gearbox.

Before the mid-70s, the sequential gearbox occupied most of the manual transmission market with the advantages of simple and compact structure, reliable performance and durability, but later with the advent of the cross-wave manual gearbox with higher execution efficiency, the manual sequential gearbox gradually withdrew from the stage of history, but in fact, it is not completely withdrawn, at least in the field of small gasoline engines such as motorcycles, almost completely sequential gearbox.

"No way, the maximum torque output of that engine is 1400 Nm. m, I can't find a cross wave gearbox that can withstand such a large torque impact in the world, and the automatic gearbox can't even think about it," said Boss Lin with a helpless face, "I tried a lot of materials, and finally found that the cross wave gearbox with the highest execution efficiency is completely unable to withstand such a large torque and power impact, but there are several materials that can be designed into a simpler and more reliable sequential gearbox, And to be able to withstand such a large shock of torque and power...... This can only be regarded as an option with no choice. ”

"Dual-clutch semi-automatic sequential transmission with automatic clutching......" Sigmund. Mia glanced at this sample again, she was really curious about this hodgepodge gearbox designed by Lin Hongfei, and wanted to know how efficient this product was, "Can you show me the design drawing?" ”

"Absolutely."

Of course, it's not a real design drawing, but there are a lot of design drawings for each component, and it's the kind of design drawings that can make people understand the basic mechanism, but it's rare to learn something.

"Two groups of clutches, group B is in a state of preparation when group A is working, the process of stepping on the clutch is canceled when shifting, and the clutch is connected by group B, and the group B clutch starts to work after the shift is completed, and then the group A clutch that exits the working state takes over the original group B clutch in a state of preparation...... "Sigmund. The more Mia said, the brighter her eyes became, "Isn't this the dual-clutch application method mentioned in a car magazine in the United States a few days ago, and you have already made it?" ”

"Well, this shouldn't be that hard, right?" Lin Hongfei touched his nose embarrassedly, and said in his heart that if someone hadn't put forward the concept of double clutch a long time ago, and even had the application of actual products, young master, I could actually use this thing to make a small name, "Now the introduction of double clutch technology in the world is a big deal, although I don't know how to do it, but as long as I know the general theory and ideas, the design of the finished product is only a matter of materials...... This is, after all, the simplest dual-clutch transmission. ”

Lin Hongfei is right, the semi-automatic dual-clutch gearbox he designed is really the simplest dual-clutch gearbox.

"Have you tested it?" Sigmund. Mia asked, her eyes glinting with hope, if the test proves that this gearbox is fine, then it can really work with the W24-cylinder engine, and she is also looking forward to what kind of loud slap will be given to the public when such a combination is equipped with Mercedes on the ground.

But all this, before the actual test, can only be empty talk, no matter how good the design, there may be hidden dangers that were not considered at the beginning of the design, after all, manpower is sometimes poor, such as later known as the god car Volkswagen, the god car in the DSG is also sad.

Volkswagen's DSG dual-clutch automatic transmission has frequent problems, not that the dual-clutch technology is bad, but from the perspective of technology, it has little to do with Volkswagen, because Volkswagen does not have its own automatic transmission production plant, and the DSG gearbox they use is all provided by BorgWarner, the reason why Volkswagen's DSG seven-speed dual-clutch automatic transmission has frequent problems, mainly because BorgWarner has not done well enough in the electro-hydraulic coupling control module and transmission cooling, to some extent, The Germans were ruthlessly put on a plate by the Americans, BorgWarner's problems were all suffered by Volkswagen, and the whole world was scolding Volkswagen for being a big bastard, and Volkswagen, which still relied on and hoped that BorgWarner would help him solve the DSG problem, did not dare to speak up, and justified himself that this matter had nothing to do with him, so he had to pinch his nose and admit it, and then he was scolded by the media and users for being bloody, criticized for his blue nose and swollen face.

"I'm preparing to test," Lin Hongfei said this, in fact, full of confidence, he firmly believes in his own design, just like firmly believe in his own level in the field of engines, this gearbox may have some small problems that have not been discovered by themselves, but there will definitely be no big problems, even if it is only the first original design in the world, no one has ever touched the "semi-automatic dual-clutch sequential transmission" before. (To be continued.) For mobile phone users, please go to read. )