Automotive Black Technology Chapter 486: ：Conquer DVVT

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Zhengxin seems to have run out of manpower since its inception.

Even after two Luozhao upgrades, after Li Fanyu determined Hongguang's R&D tasks, the R&D engineers were still very busy.

Within just two days of comfortable life for the brats back in the United States, it turned into a hard life of working from five to nine, and even working hard until late at night.

Because the U.S. market is now in the development stage, the follow-up research and development of the F150 takes up nearly half of the human resources, so there are currently only more than a hundred formal R&D engineers in the R&D center.

Although after the group upgrade and the company's expansion, the R&D center has admitted new people to a certain extent; Tiancheng Engineering, as Li Fanyu's alma mater, is naturally within the scope of Zhengxin's care, and a large number of graduate students have entered Zhengxin's part-time work-study program. . The three major universities in Qingbei and Kazakhstan have also successively added some graduate students and doctoral students.

However, these personnel are still lacking in ability and experience and need time to grow. At this stage, these people can only help engineers get started and complete some simple experiments such as modeling and partial testing.

In view of this situation, Li Fanyu left all the group's affairs to An Ning, and he sat in the R&D center to supervise and coordinate the R&D progress.

This job originally belonged to Xu Fufang.

Although it is supervision, the specific work is also very complicated. Once the R&D work started, there were so many things to design. Zhengxin's ecological model is a bit special. It is not only responsible for the research and development of complete vehicles, but also needs to take on some things that should belong to the supporting factory. Therefore, coordination work is enough to bring Li Fanyu, the corporate boss, back to his original shape and transform into a technical nerd again.

The research and development work has been going on for more than ten days. For more than two weeks, Li Fanyu has been eating and sleeping in the industrial park. The luxurious office Lu Heming specially decorated for him in order to flatter him has almost become his third home.

Zhengxin's engineers have long been accustomed to Li Fanyu's direct involvement in research and development projects. But the newly added team members still seemed very excited.

Li Fan is stupid!

Although there are no famous movie stars or singers, in the field of automobile industry, this name is truly a legend among the new generation of industrial workers in China. Every day in his spare time after arranging specific work, Li Fanyu looks at the admiring eyes of a group of people, and Li Fanyu is very stressed...

Because the DVVT engine is the core of the Hongguang model, it was the first part that Zhengxin started to develop. Through the joint efforts of the R&D team, a prototype has been produced.

What is going on now is the last step before the engine enters mass production, testing.

Different from the current testing methods of other car companies in the Chinese automobile industry, because the entire set of testing equipment was purchased by An Ning from overseas, Zhengxin actually uses European standard testing methods.

When it comes to the engine, it's even more complicated.

This is something that can't be helped. Europeans still have very high requirements for the reliability of machinery. This is why Li Fanyu is willing to spend a lot of money to introduce these equipment.

As the home base of the auto industry, Europe does have its own set of standards. These are all things worth completing and learning from Zhengxin.

Take this engine test as an example. Zhengxin now needs to do four steps in the bench test.

They are four engine experiments: MS-IID, IIID, IIIE and VD.

MS-IID is used to stabilize the ability of lubricating oil to prevent corrosion of valve groups in automobile engines under low temperature and short-distance conditions. MS-IIID, IIIE and VD are respectively used to stabilize the high-temperature oxidation, thickening, sludge-grade paint film deposition and engine wear resistance of lubricating oil.

Compared with the SH/T series of tests adopted by the Ministry of Industry and Information Technology of China at this stage, MS's tests are obviously more complex and more complete.

Starting from the QS15 V8V10 engine, Zhengxin has used this set of test standards. Therefore, as long as the engine passes the Zhengxin test, there is no pressure at all to pass the review of the Ministry of Industry and Information Technology.

As a low-end and low-cost engine, the p-tec engine itself has no technical difficulties to talk about. The only troublesome part is the camshaft sprocket unique to DVVT technology.

Because all the engines previously manufactured by Zhengxin were relatively high-end in terms of positioning. Therefore, in order to pursue the quiet performance of the engine, the cam chain shaft has always been driven by a belt. However, P-TECDVVT needs to change the state of the intake and exhaust valves very frequently. If it still uses belt transmission, it will not pass the test in terms of durability.

What is embarrassing is that the supporting manufacturers in the industrial park do not have the experience and technology to manufacture such sprocket structural parts...

So at this stage, Zhengxin mobilized the purchasing department to find an international supporting factory.

If this had not delayed the process, I am afraid that the engine would have been ready for review by now.

Through this point, Li Fanyu felt that there was still considerable weakness in basic industries in the country. But this cannot be solved by himself or in a short while. I am also very helpless about this.

Overcoming the difficulties, the P-TECDVVT engine quickly passed the review of the Ministry of Industry and Information Technology. The registration of various technology patents was handed over to the group's legal department, and Li Fanyu led the team to conduct the rest of Hongguang's research and development.

As a national-level satellite MPV, Hongguang's body technology can be said to be the simplest among the projects that Zhengxin has ever done. After the engine problem was solved, the progress of the entire model can be described as rapid.

With the development of Zhengxin, the research and development model and process have become mature, and it also has its own model laboratory. Therefore, even if you do not rely on the X3D metal printer, you can independently complete the manufacturing of trial parts.

Seeing this progress, Li Fanyu breathed a sigh of relief.

The progress is encouraging, hahaha... It seems that I can be lazy again... Ah no! Let the grassroots team train themselves!

Lefting all the coordination work to Lao Zhang, he also asked Wang Rui, who was developing performance versions of CC2CC8 cars, to take over the next step of body and chassis adjustment. Li Fanyu finally walked out of the industrial park for the first time after staying in the R&D center for more than ten days.

After the Zhengxin A8 rolled off the assembly line, Li Fanyu kept one for his own use. But because I was too busy at that time, I did not modify my car. Although his driving skills are enough to kill 90% of the humans on the planet, Li Fanyu usually drives very steadily.

After coming out of the industrial park and walking leisurely for more than ten minutes, he felt something was wrong.

On the rearview mirror, a large cargo truck that seemed to have no load seemed to stop behind him without any hesitation after it came out of the industrial park.

Li Fanyu frowned;