The car giant started by marrying the daughter of the king

Chapter 37 This answer is a bit strange
"Boss Ji, has your 4MT really been finalized? Are you ready to start producing samples?"

Without waiting for Chen Qi and Lu Jianqiang to speak, Cheng Tao, chief engineer of the Capital Internal Combustion Engine Factory, stood up impatiently.

He also brought several technical backbones to attend the meeting today.

In the upgrade of BJ212, the engine is definitely a component that everyone pays special attention to.

Now that the gearbox, which is almost as important as the engine, has made a breakthrough, the pressure is now on the Capital's internal combustion engine assembly.

The key is that Cheng Tao currently has no idea how to increase the engine power while reducing fuel consumption.

"I've even brought some of the blueprints with me, so how could it be fake?"

Ji Hua patted the briefcase beside him and took out a stack of drawings from it, his face full of confidence.

When the Capital Institute of Technology approached the factory to discuss cooperation, there were some different opinions within the factory. It was he, the chief engineer, who, after reading the drawings, rejected all objections and insisted on in-depth cooperation with the other party.

I didn't expect to start reaping the benefits so soon.

"Boss Ji, you have already started research and development of 4MT in advance, so have you started research and development of 3AT or 4AT automatic transmissions?"

At this time, Chen Qi finally couldn't help but interrupt.

The 4MT is good, but it would be even better if there was an automatic transmission.

However, Ji Hua has a different opinion on this.

"MT gearboxes are mainly composed of gears and shafts. Through different gear combinations, speed changes and torque are generated, and power transmission is more direct."

"Automatic transmissions, whether 3AT or 4AT, their transmission systems are composed of torque converters, planetary gears and hydraulic control systems."

“Speed ​​and torque changes are achieved through a combination of hydraulic transmission and gears, and there is a certain amount of power loss during the transmission process.”

"Therefore, to get the same power as a manual transmission, you need to step on the accelerator more, which will lead to higher fuel consumption."

"In addition, there is a certain delay in automatic transmission shifting, and the shifting timing is controlled by the TCU transmission control system. Skilled drivers using manual transmissions can better grasp the shifting timing, which helps reduce fuel consumption."

"From what I heard just now, the First Ministry of Machinery Industry has high requirements for reducing the fuel consumption of BJ212. I think 4MT is the most suitable choice at this stage."

It was obvious that the Capital Gear Factory did not have the ability to produce automatic transmissions, but after listening to Ji Hua's explanation, everyone did not have a bad impression at all.

“The 4MT has one more gear than the 3MT, which enables smoother operation when shifting gears, reducing driver frustration.”

"At the same time, 4MT can show higher fuel economy and produce less noise when driving at high speed."

"Compared with 3MT, 4MT is able to achieve a smaller reduction ratio, thus giving the gearbox a higher output speed."

"This means that under the same conditions, the 4MT can provide a faster vehicle speed while reducing fuel consumption."

"So I completely agree with Mr. Ji's opinion that 4MT is the most suitable gearbox for the upgraded model of BJ212."

Cheng Tao was worried that Chen Qi would continue to worry about the automatic transmission, so he took the initiative to step forward and help Ji Hua share the burden.

Putting aside whether the Capital Gear Factory can develop an automatic transmission, the mere fact that an automatic transmission is used will increase the fuel consumption of the entire vehicle, which is not the situation Cheng Tao wants to see.

Because all these pressures will eventually fall on the Capital Internal Combustion Engine Factory, it will lead to higher demands for reducing engine fuel consumption.

If the Capital Internal Combustion Engine Factory fails to complete the task, it will be a disgrace.

"The change from 3MT to 4MT not only reduces fuel consumption, but also significantly improves ride comfort."

"As we all know, the more gears a transmission has, the smaller the difference in transmission ratios between adjacent gears, and the smaller the fluctuation in engine speed when the driver shifts up or down gears." "In order to ensure a good ride, the driver generally needs to control the clutch when shifting gears. The more gears a transmission has, the smaller the change in engine speed and engine inertia, and the corresponding clutch control becomes easier."

"Whether from the perspective of driving convenience or riding comfort, it is very beneficial."

Ji Hua would naturally not miss such a good opportunity to introduce (brag about) his new generation of gearbox.

The atmosphere of today's meeting was quite serious and everyone was under a lot of pressure.

Now that the Capital Gear Factory has made a breakthrough, everyone is happy to listen to Ji Hua's detailed introduction.

Among the three major parts of a car, the most difficult one to deal with, the gearbox, was solved first, which made the prospects of the BJ212 upgrade project team suddenly bright.

"Let me take a look at the assembly diagram first."

After listening to Ji Hua and Cheng Tao talk about the advantages of 4MT, Lu Jianqiang couldn't help but stand up and walk to Ji Hua's side. He reached out and picked up the drawing of the 4MT manual transmission and started to look at it.

Although he is not a technician specializing in gearboxes, as the director of the design department of a vehicle manufacturer, he is relatively clear about the basic structure of gearboxes.

Especially when the first generation of BJ212 was produced, he personally participated in the production preparation of various parts.

He is also very familiar with the 3MT gearbox currently used.

"Director Lu, you can look at it as you like."

"This 4MT is an improvement on our original 3MT, retaining as many gears and bearings as possible from the 3MT. It is definitely a perfect solution."

Ji Hua has studied these drawings countless times and is full of confidence.

Lu Jianqiang did not refute Ji Hua's words. If this 4MT was really that good, then there would be nothing wrong with listening to Ji Hua's bragging a little more.

If he could solve the problem of upgrading and replacing various parts just by listening to people bragging, he would be willing to listen to people from various supporting factories bragging every day.

"Mr. Ji, when did you start designing this 4MT manual transmission?"

Lu Jianqiang quickly looked at the drawing information and found no obvious problems.

Just as Ji Hua said, although 4MT and 3MT are two completely different products, some of their parts have been retained to the greatest extent possible.

This can significantly reduce the production cost and preparation time of 4MT, which is definitely an excellent choice.

"Strictly speaking, the design of this 4MT started in 76, but it was not finalized until last month."

Ji Hua was silent for a few seconds and gave an answer that made Lu Jianqiang feel a little strange.

Design started in 76?

I haven't heard any news at all. This is a bit abnormal!
The gearboxes produced by the Capital Gear Factory are mainly supplied to the Capital Automobile Manufacturing Plant.

If they want to design a new gearbox, they normally have to communicate with customers.

How can you just ignore everything and get down to work?

Besides, even if they really didn't report it, it's impossible for no news to come out for two years.

It’s not a special military confidential project!

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(End of this chapter)