"The latest tank transmission system currently manufactured by the First Machine Factory is already an automatic transmission. Can't you solve this problem yourself?" Qin Baozhen asked.
Qin Baozhen's attitude is simply incomprehensible. A company is just starting out and what it needs most is to have projects, which means to make profits. Now, good projects are constantly coming up, but Qin Baozhen is not willing to do it, and even asked others, you can do it yourself.
, Why come to us?
However, Qin Baozhen must ask clearly that the company has projects, so she is of course happy, but Qin Baozhen also has to be sure that this does require her own help. If you hand over these projects to yourself just to help yourself, then Qin Baozhen cannot
It is accepted because she returned to China to use what she learned to build the motherland, rather than being taken care of by others. She did not want to be treated preferentially everywhere, which was the same as she was unwilling to let Hua Dongjie take the money from her family.
Hearing Qin Baozhen’s question, Wang Erzhu smiled bitterly: “Do you know the type of transmission?”
"The automatic transmission of the tank should adopt the principle of an AT transmission, and the front end has a torque converter for flexible connection." Hua Dongjie explained on the side: "So, its automatic transmission design is simpler,
The truck's transmission adopts the AMT principle, and directly adds a set of control units on the original transmission. Therefore, the combination and separation of the clutch are very challenging to train. If the program is not suitable, the clutch is very
It will be scrapped soon.”
Sure enough, this Hua Dongjie was still more involved and explained these things quickly.
"Yes, at the same time, the tank's transmission has few gears. At the beginning, there were only two forward gears. Even now, there were only four forward gears. Anyway, the tanks do not pursue fuel economy, but our trucks are
No, the gearbox we plan to renovate is a nine-speed gearbox, which may be expanded to a twelve-speed gearbox in the future. In this way, the complexity of gear shifting will be greatly increased." Wang Erzhu followed and said: "
At our current level, it is difficult to solve these technical problems."
There are not many gears in the tank transmission, but there is a front torque converter to act as a conversion element. For example, when starting, go first gear and step on the accelerator, and the hydraulic oil in the torque converter begins to be stirred.
, transmit power, this is a completely soft connection, so you don't have to worry about starting and shutting down. However, the front of the truck's transmission is a clutch, which relies entirely on friction to combine power. If there is no superb technology, it is easy to put the clutch on it.
Grinding.
The gears are also different. With the torque converter, the transmission can be completely smaller. Anyway, the torque converter can also slow down, but the clutch is not good. The truck needs to switch differently under different road conditions.
The gears are so as to achieve perfect power output and fuel economy. For example, when climbing a hill, the speed of the fourth gear is too fast, the power is insufficient, and it cannot climb up. If the third gears are too heavy, the power will be unnecessary.
It consumes fuel, so if you add another gear between the fourth and third gears, you can meet the needs.
Therefore, the gears of trucks are increasing. At that time, the old Jiefang and Dongfeng had only five forward gears. After introducing Steyer Truck, there were eight gears. Later, the gearboxes were eight gears.
Based on the individual gears, a special climbing gear has been added to become a nine-speed gearbox, which is the largest number of gearboxes installed at present. On trucks with more abundant power, twelve gears have been used.
There are even trucks that may match the sixteen-speed gearbox.
The most important thing is economy, which can reduce operating costs and allow car owners to make more money, so as to adapt to market demand.
Different drivers have different methods. They can clearly use five gears to drive the accelerator, but some drivers like to use four gears to hit the accelerator, which will naturally be more fuel-intensive. When an automatic transmission is used, the gear shift is controlled by the computer.
As long as the technology is mature, theoretically it is more fuel-efficient than manual gear shifting.
Therefore, there will definitely be demands in this regard in the future.
"This is indeed a trend." At this moment, a voice came from outside: "Not only civilian trucks, but even our military trucks in the future, they may also need automatic gearboxes, so Baozhen, this is for
The motherland's national defense has made contributions, and I hope you can accept this project from Erzhuzi."
As he spoke, Qin Zhenhua walked in. He was very concerned about Qin Baozhen, so he took the time to come and take a look today. He heard Wang Erzhu's conversation with them. So Qin Zhenhua listened outside for a while, and it was not until now that he took it.
After talking, he walked in.
"Military trucks also need automatic gearboxes?" Wang Erzhu was a little surprised: "What are you trying to do?"
Civilian, for ease, for fuel saving, and for military use, also use automatic transmissions. What is the purpose? Wang Erzhu couldn't help blurting out. After asking, he felt that it was a bit inappropriate. If Qin Zhenhua was to help him, so
I just added this one. Now, even Wang Erzhu doesn’t believe it. How can Qin Baozhen believe it?
You know, the drivers in the army have the most exquisite skills, and the shifting movements are the most basic, so how can automatic transmission be used?
"For convenience," Qin Zhenhua said: "In military heavy trucks in various countries, automatic blocking has also begun to be gradually tested. This is a trend. After all, it is also beneficial to be able to free up a hand, for example,
If you are injured on the battlefield, you can drive with only one arm."
Qin Zhenhua said it was not wrong. Now, military heavy trucks from all countries are gradually moving closer to automatic transmission. Moreover, this is not just heavy trucks, because many of the heavy truck technologies are used on wheeled infantry fighting vehicles, that is,
, future wheeled infantry fighting vehicles can also be automatically blocked, so the market will be even broader.
"Okay, we're going to come up with this project, but this way, our development will be very tight. After all, we only have two people at the moment." Qin Baozhen continued.
"If there are not enough people, then go and recruit. Now, the country has expanded its enrollment year by year, and college students are no longer as rare as before." Qin Zhenhua said: "Your company must have at least twenty or thirty people, that's what it is like."
It looks like a R&D institution. Look at Brother Qiang, there are already hundreds of R&D personnel."
Qin Zhenhua was determined to help his sister make the company bigger and stronger.