Set sail1992

Chapter 580

Although he was a bit dumbfounded and helpless, Professor Xu Qingwu had to admit that he was actually quite happy.

It was also at this moment that Professor Xu Qingwu suddenly felt that this student of his was so pleasing to the eye and so handsome?
"Then... cough cough... let's do it," Professor Xu Qingwu, who was a little uncomfortable, felt that his throat was uncomfortable, coughed lightly, twisted his neck, and said, "then this is yours." Graduation project, um, since it is your graduation project, let me review it for you... What is the drawing below?"

"Oh," Zhang Qihang was startled, and quickly introduced to Professor Xu Qingwu: "This is a schematic diagram of the power transmission of the gearbox, and this is a schematic diagram of the independent pressure control circuits of the 1st and 2nd gear clutches. The half part is an introduction to the control logic of the 1st and 2nd gear clutches, and the following is the switching curve of the 1st and 2nd gears..."

Although they were all just sketches, Professor Xu Qingwu was completely relieved looking at these sketches.

These sketches are also enough to illustrate the problem!

Before this, he was somewhat worried about whether the design of this parallel-axis automatic transmission was really designed by Zhang Qihang, but now, seeing these drawings, Professor Xu Qingwu knew it in his heart: If it wasn’t for this design. The most important thing is that after Zhang Qihang, it is absolutely impossible for him to take out these things, because for any car manufacturer, these are the secrets among the secrets, and the fact that this kid can take out these drawings is enough to prove everything .

Professor Xu Qingwu took a deep breath, and when he looked up at Zhang Qihang again, his face was full of relief: "You boy, you can really surprise people, you can make this thing?"

"hey-hey……"

Zhang Qihang scratched his head, seemingly embarrassed.

Professor Xu Qingwu didn't care about these things anymore, he lit a cigarette and took a deep breath to calm down his agitated mood, and then said: "To tell you the truth, our college has been researching automatic transmissions all the time. The country has always wanted to develop an automatic transmission with our own intellectual property rights, but in the face of the strong technical patent barriers established by European and American auto industry powers in the field of automatic transmissions, we can only copy other American The three-speed Simpson-type planetary gear automatic transmission that people invented in the 50s and whose patent has long since expired, but you..."

Speaking of this, Professor Xu Qingwu looked at Zhang Qihang with a complicated expression: "You just said that your gearbox can get 6 speeds?"

"Yes," Zhang Qihang responded, and said, "The one I'm designing now is a four-speed, and I'm going to build a five-speed next. It's not impossible to make a six-speed, but if you want to achieve a six-speed, the current one Three shafts are not enough, four shafts are needed, and now there are some cost advantages, but if it comes to four shafts, compared with planetary gear automatic transmissions, this parallel shaft automatic transmission does not have much cost advantage gone."

Professor Xu Qingwu shook his head: "Don't say there is no cost advantage, even if our cost is higher than foreign automatic transmissions, our company has to support you."

Zhang Qihang smiled wryly in his heart: Teacher, teacher, what you think is really too simple.

Regarding the virtues of those foreign companies in China, Zhang Qihang couldn't be more clear: When we can't produce something, they can maintain several times or even ten times the profit, and maybe they will tie up a bunch of other conditions , Every now and then you will get stuck on your neck.But when we can produce this thing, it will be another matter. They will sell this thing very cheaply, even if it is cheaper than our own production, and they would rather sell it at a loss, just to grab it from you. The market will do everything possible to squeeze you down.

During this process, a considerable number of domestic companies will be ecstatic because foreign companies suddenly lowered the price of this product, and feel that they have made a profit. Instead of thanking those companies that have won them opportunities for low prices, they will secretly Laughing: Wouldn't this guy be stupid for wanting to compete with foreign companies?
However, when Zhang Qihang decided to "re-enact" the Honda parallel shaft gearbox, he was already mentally prepared for this situation, so Zhang Qihang's idea was simple: to meet his own needs, but if After the development of national enterprises, if there are other brands of car companies willing to purchase my gearbox, there is nothing to say, of course I will sell it to him.

Professor Xu Qingwu didn't know that Zhang Qihang had already gone through so many thoughts in his mind. Thinking that the first domestic automatic transmission with completely independent intellectual property rights was actually made by his own students, he couldn't help thinking more and more. Excited, the whole person couldn't sit still anymore, and said to Zhang Qihang with a kind face: "Xiao Zhang, I'm going to call Lao Li and Lao Wang over to have a look, do you have any objection?"

If you have a bully and don't blow it, it's like walking at night in a brocade!
My students are so awesome, of course I have to brag to my old colleagues!
"Of course no problem," Zhang Qihang nodded without hesitation: "Professor Li and Professor Wang are here to help me review and check, I'm too happy to be in time."

Professor Li Changyi and Professor Wang Youzhi have always been very supportive of their work. They are the kind of good teachers who are sincerely admired and highly respected. Such people will plagiarize their own designs?
nonexistent.

They can only be happy that they can come up with such a design.

This is indeed the case. Professor Li and Professor Wang, who rushed over soon, learned that Zhang Qihang had designed a parallel-axis four-speed automatic transmission, and that it had been initially approved by Professor Xu Qingwu. They were even more excited than Professor Xu Qingwu. After confirming that the design of the parallel-axis automatic transmission that Zhang Qihang called was feasible at least from a technical point of view, the two asked Zhang Qihang excitedly: "Little brother?" Zhang, is this gearbox really designed by you?"

"Yes……"

Before Zhang Qihang finished speaking, he was roughly interrupted by Professor Xu Qingwu. He looked at Professor Li Changyi and Professor Wang Youzhi aggressively, and said honestly: "The surname is Li, the surname is Wang, what are you two?" Mean? Doubt my students?"

"That's not what I mean," Professor Li Changyi said subconsciously, "I mean..."

"That's what you mean!" Professor Xu Qingwu interrupted Professor Li Changyi again, and said, "Let me ask you, from the planetary gear type to the CVT continuously variable transmission type and then to the AMT type, which automatic transmission have you seen used a similar mechanism?" Structure? No? If not, this design was created by my students, why do you doubt my students?"

Don't look at Professor Xu Qingwu's various inquiries when he was talking to Zhang Qihang just now.But when someone dares to doubt his student, then there is nothing to say, hate him!

Professor Xu is such a protector!
I didn't expect my old colleague's reaction to be so fierce. Professor Li Changyi was a little annoyed for a while: We have been colleagues for so many years, and you don't know who I am, Li Changyi?What do you mean by such a big reaction?
On the contrary, Professor Wang Youzhi tried to persuade him, "Old Xu, don't react so violently. You should understand that Lao Li has nothing wrong with it. It's just that this matter is beyond people's expectations. No matter how normal his reaction is, But, "

Seeing that Professor Xu Qingwu wanted to speak, he simply asked directly: "Old Xu, let me ask you, when you first saw these things, would you believe that your students could make these things?"

Professor Xu Qingwu couldn't help opening his mouth when he heard the words, but he still didn't say anything after all.

Indeed, when I saw Zhang Qihang's blueprints for the first time, my reaction was no better than that of Lao Li.

Seeing that Professor Xu Qingwu stopped talking, Wang Youzhi said to Li Changyi: "And Lao Li, you too, although Xiao Zhang's parallel axis design is indeed very powerful, which makes people feel very incredible, but it is your first time. Have you seen the greatness of Xiao Zhang? You have forgotten that Xiao Zhang directly took out the HT150 engine when he was an undergraduate, and later made the HT300, a V-shaped twin-cylinder engine. Have you forgotten all your talents?"

"It's true!"

As soon as Wang Youzhi's words fell, Li Changyi slapped his head: "Why did I forget this?"

These words do not mean to go downhill, but he also firmly admires Zhang Qihang's talent in machinery. Back then, Zhang Qihang, who had just graduated not long after graduation, was able to take his own The Huateng HT150 single-cylinder air-cooled gasoline engine with OHV gas distribution system designed by one person went to school to seek support. Later, he designed the V-type twin-cylinder air-cooled gasoline engine on Huateng's first unmanned plant protection helicopter by himself. Well, this little guy's talent in mechanics even made many teachers in the School of Automotive Engineering admire him.

Looking back at this parallel-shaft four-speed automatic transmission, let’s not talk about whether the design of the complex hydraulic control oil circuit of the automatic transmission can be handled by Zhang Qihang alone. Just talking about the gear parts of the three shafts, the problem should be It's really not that big.

Thinking about it this way, Professor Wang Youzhi, who initially thought about going downhill and not arguing with his old friends, began to feel that there was at least five doubts about whether this parallel-shaft four-speed automatic transmission was really made by Zhang Qihang. The credibility of the completion... As for the remaining [-]%, I will wait until I read all the designs and confirm that the design is really okay.

After all, the modern automatic transmission is already a highly complex system engineering, which requires a team of tens of hundreds of people and the assistance of modern computers to complete. This guy claims to have completed such a highly complex system engineering by himself!

Are you saying scary or not?
Just scare me to death, okay?
(End of this chapter)