How to continue the popularity of the topic on the Internet, Cao Yang is definitely more vocal than anyone else.

If Xingchen Auto wants to take the high-end route, it must need a variety of exposure.

So there's no harm in getting some of your own news out every once in a while.

Whether it is Xingchen No. 1 benchmarking BMW 730, or the gearbox is ready to use 8AT, although these news are not all released by Cao Yang on his own initiative.

But after being exposed on the Internet, he did not arrange for anyone to suppress it.

Even Autohome will follow the trend of exposing some further news.

In this way, Xingchen Automobile is remembered by many netizens.

However, Cao Yang himself was very busy during this time.

The company has recruited a bunch of tool people, and in the development of Xingchen 1, it is natural to make some achievements.

Cao Yang has personally participated in the development of several parts in several design departments such as powertrain, chassis, body, interior, exterior, electronic and electrical appliances.

"Mr. Cao, if the new car must use air suspension, then the front subframe is best to use a double wishbone structure, and the rear subframe uses a five-link independent suspension."

"In this case, it can be adapted to the needs of air suspension."

"Otherwise, it's like a MacPherson structure, because the spring damping struts are rigidly connected to the steering knuckle, and the change in the spring length of the front suspension will directly lead to a change in the camber angle of the front wheels."

"And because the trajectory drawn by the lower arm is an arc, the inclination angle of the front wheel with the length of the spring is nonlinear."

"Due to the integrated structure of spring damping and vibration commonly used in front suspension, the spring needs to bear a part of the lateral stress in the MacPherson structure, which increases the reliability hidden danger of the delicate air spring."

"In a double-wishbone structure where the spring damper only takes on the longitudinal forces, the air spring is naturally in a much better position."

"And because of the upper and lower wishbones, and the movable connection between the wishbones and the steering knuckle, the change in the inclination angle of the front wheel is still more linear and controllable, and the amplitude is usually smaller."

As the minister of the chassis department, Xun Qi's professionalism is beyond doubt.

If you ask him to develop a part innovatively, he may not necessarily do it very well.

But if you work in a step-by-step manner, or explain some theory, there is absolutely nothing wrong with that.

Cao Yang only set a requirement for the suspension of Xingchen No. 1 that the front and rear must be independent of the suspension, but it required the use of air springs.

Therefore, Xun Qi needs to explain the logic of the overall design of the chassis to Cao Yang.

The technical requirements of each part have been set in the first version according to the requirements of the industry, and now it is necessary to start to implement the specific parts.

Originally, it was difficult to set the requirements for each part.

But now that I'm designing parts, I'm looking at a lot of more difficult things to do.

In the whole of China, there is no manufacturer with the production strength of air springs, and Cao Yang does not want to import from abroad and be slaughtered, so the pressure on Xun Qi on the chassis department is great.

"Gas springs give the body an adjustable character in terms of height, ground clearance and spring rate."

"At the same time, you can look for better stiffness curves, vibration filtering performance, and so on."

"By changing the amount of air inside the airbag, the height of the vehicle can be adjusted."

"This is a very important thing for the luxury of Star 1."

"Since you want to use air springs, you must be equipped with a front double wishbone independent suspension and a rear five-link independent suspension, so design it in this direction."

"These two types of suspension, although not used by mainstream models on the market, but BMW, Mercedes-Benz still have many models that choose a similar structure."

"The chassis department is designed according to the structure of the BMW 730, and then targeted tuning will be carried out later."

"As for the gas spring, I took a few designers to develop it together."

How to design some parts, Cao Yang will not interfere.

However, some key parts are related to the commoditization of the entire model, which must be on.

Gas springs are one of those things.

"Compared with ordinary steel springs, air springs do not have the noise caused by mechanical friction, and the natural frequency of the air does not change with the increase of load, which is also more friendly to improve NVH performance."

"If Xingchen No. 1 really wants to be equipped with air springs, it is indeed very beneficial to improve the luxury of the model."

"Mr. Cao, don't worry, in terms of front and rear independent suspension, I will not drop the chain."

Xun Qi saw that Cao Yang had taken over the most difficult air spring development work, so he naturally had to hurry up and express his position.

Otherwise, you won't be able to do any work, what do you want to do?

"In the development of the suspension, the adjustment of relevant parameters is very crucial, and if there are any problems encountered in it, report them in time."

Recruited so many tool people, the work must be arranged.

Everyone has developed the first version of the parts, and if Cao Yang puts forward some suggestions for improvement, it will be much more normal.

Otherwise, everything was Cao Yang who took out the drawings by himself, and it would be very strange not to say that it was unrealistic.

……

"Mr. Cao, judging from the data of software simulation, the cooling effect of this air conditioning system is at least 20% stronger than that of similar products of Denso and Valeo, and half of that compared with Keihin's air conditioner."

"I think it is completely possible to follow this drawing and let Nanshan Auto Parts start to prototype the prototype."

In the interior decoration department of Xingchen Automobile, Peng Changyi looked at the computer and explained the design plan of the air conditioning system to Cao Yang, who was standing behind him.

Although various car companies rarely talk about air conditioners when promoting their models.

But anyone who has ever driven a car knows that if the air conditioning and refrigeration effect is not good on a hot day, it is very unpleasant.

For example, Yangcheng Honda's Accord, although consumers have a high evaluation of it, they feel that the appearance and configuration are in line with the international market.

However, in terms of the refrigeration effect of air conditioning, there are a lot of complaints on the forum of Autohome.

Another thing that can be compared to the cooling effect is noise.

Especially at high speeds, many people find it noisy.

Xingchen Automobile wants to be a luxury car, and the refrigeration effect of air conditioning naturally cannot become the object of criticism.

Otherwise, no matter how much effort is made in the early stage of listing, it is easy to ruin the reputation in the later stage.

"This air-conditioning compressor related technology, remember to register a patent in time."

"The most important thing is that the performance of the air conditioning compressor is good enough."

This time, Cao Yang "developed" the air-conditioning host technology provided to Lexus by Denso in later generations, and compared with the current mass-produced products in the industry, the effect is naturally leveraged.

In fact, the operating principle of the refrigeration system of the car is very simple, and it is no different from the household air conditioner.

Refrigeration relies on the refrigerant, that is, tetrafluoroethane, to change the form of the refrigerant, which absorbs heat and lowers the temperature of the evaporator in the process of change.

The compressor starts to drive the flow of refrigerant, which is pushed to the condenser to cool down, and then to the position of the drying tank and expansion valve to become liquid.

When tetrafluoroethane becomes liquid, it will enter the low-pressure part, and the liquid refrigerant will enter the evaporator, and the temperature of the evaporator must be above zero, and the boiling point of tetrafluoroethane is -26.2 °C.

Obviously, the temperature of the evaporator is well above the boiling point of the refrigerant.

At this point, the refrigerant boils instantaneously by absorbing the heat energy of the evaporator, and the evaporator cools down due to the loss of heat energy.

Finally, the fan blows the hot air through the cryogenic evaporator, which absorbs the air temperature to create "cold air", which is the process of refrigeration.

It can be said that this principle is not complicated at all, and any parts company can figure it out.

Even condensers, expansion valves, pipelines and other parts, the technical threshold is not high, and many Chinese enterprises can produce them.

But in the case of air conditioning compressors, it looks simple, but in fact it is difficult to do well.

This time, the refrigeration system of Xingchen 1 worked well because the air conditioning compressor was powerful enough.

"Mr. Cao, you can rest assured that there are dozens of people in the legal department, who are responsible for registering patents for various R&D departments."

"We have registered patents not only in China, but also in the United States, Dongying, Korea, the European Union and other places."

"The more important the parts, the more patents will be registered as much as possible, forming patent barriers."

"In the future, if other parts giants dare to sue us for infringing their patents, we can quickly find out some evidence of the other party's infringement of our patents, so that everyone will not dare to use patents against our company easily."

Peng Changyi obviously has a special study of some of Cao Yang's work styles and requirements.

Xingchen Automobile has to grasp most of the core parts in its own hands, and it is impossible not to infringe on other people's patents at all.

Even if it's not so obvious, if people want to sue you, they will definitely be able to find a little handle.

The countermeasure taken by Xingchen Automobile is to register enough patents by itself, and when the time comes, if there is a lawsuit, there will be a big pot stew.

I am the defendant and I am also the plaintiff.

Everyone's consuming.

……

"Mr. Cao, Xingchen Automobile Research Institute now has more than 1,000 R&D personnel, can you temporarily control the pace of recruitment?"

Liu Youmei was also busy during this time.

Nanshan Group has been in the midst of rapid development, and the demand for talents is very strong.

This requires the personnel department to continue to carry out social recruitment, and even cooperate with headhunters to recruit some talents.

There are dozens or even hundreds of people joining the company every week, which makes Liu Youmei fully feel the pressure.

"What is the research institute of an automobile company with only 1,000 people?"

"If you look at the research centers of General Motors, Ford Motor and Volkswagen and Toyota Motors, which one has less than 10,000 people?"

"Although we don't need to compare with them in the short term, we need at least 2,000 R&D personnel to meet our design needs."

"The R&D and testing of components for each system require a large number of talents."

"You just have the audacity to dig people."

Although he has recently been complained by many company CEOs because of poaching, Cao Yang has no intention of stopping.

For example, the R&D centers of companies such as Chuncheng Automobile and Xifeng Automobile have raised a lot of people, but they have not seen any decent results.

If I can make use of some of these powerful talents, I can also contribute to the development of Huaxia's automobile industry.

Automobile power, simply relying on the production of cars, there is definitely no way to strengthen the country.

It takes all-round efforts from various parts to equipment to make it possible to truly achieve a strong country.

Just like the efforts of Nanshan Special Steel, Nanshan Bearing, Nanshan Semiconductor Division and other fields, it will eventually affect all walks of life, so that the entire Huaxia industry can reach a higher level.

Of course, this process must be a long one.

After all, Nanshan is just a company, and it is very small in a country.

……

"Mr. Wang, I recently noticed that the number of patent registrations of Nanshan Group this year is the largest in the entire Lingnan Province."

"Even the number of patent registrations of Warwick this year is not as good as theirs."

"This should have a lot to do with their large-scale expansion of the number of R&D personnel in the past two years."

"It is said that the entire Nanshan Group, engaged in research and development, has more than 5,000 engineering and technical personnel."

"I think the company also needs to consider expanding the number of R&D personnel?"

Liang Chuanqing is also under a lot of pressure this year.

In addition to the F6 model, they are also working on two new models at the same time, one of which will be available in a few months.

The remaining one can also be launched next year.

However, in the process of development, various problems were encountered.

So he always wanted to expand the size of the R&D staff.

It's just that he also knows that BYD's overall profit margin is not particularly high, and the number of R&D personnel is not small.

If it continues to expand, it must have a good reason.

The large number of patents registered by Nanshan Group now provides him with a very good excuse.

"Before the emergence of Nanshan, Huawei was the most important company I have ever seen in China that attaches most importance to R&D work."

"I also know that R&D is very important, but R&D and output must be directly linked, otherwise our company will not be able to support a large amount of R&D investment."

"Now the number of R&D personnel is quite a lot, if the second new model can also be successful, I agree that you will recruit another 300 people."

Many parts of BYD's cars are purchased from suppliers such as Nanshan Group.

In the research and development of models, the number of personnel required is naturally not so much.

It's like developing a gearbox, if you want to do it yourself, then you need a development team of at least one or two hundred people to make something possible.

But if you buy the gearbox directly, then it is enough to have a dozen or so people in charge of testing and matching the product.

This is also the reason why the number of R&D personnel of domestic independent brands at this stage is generally not much.

From the appearance of the whole vehicle to the various parts, there are few that really design themselves.

Where are so many R&D personnel needed?

Selling a car is to earn one or two thousand yuan, where is there such a huge profit to support a large amount of R&D investment?

But if you don't have enough R&D investment, how can you overtake in corners?

(End of chapter)