Rebirth 99 to become a car giant.

Chapter 961 2014 The last collision, the breakthrough of the dummy (page 1)

Tomorrow is New Year's Day.

However, Cao Yang's work has never stopped.

Today, he followed Rao Yongxiang, Zeng Tingting and Li Shigui to Nanshan Robotics to confirm a very special research result.

That's the dummy used in car crash tests.

Many people may be familiar with famous collision test organizations such as C-NACP, US-NCAP, and EURO-NCAP, but many people probably know very little about collision test dummies, which are very critical in car collisions.

As the largest automobile company in China, Nanshan Automobile Group inevitably has to use various dummies when developing various models.

"Mr. Cao, our annual expenditure on mannequins is basically more than 3 million RMB."

"If you consider the development cost of the entire model, it may not be particularly expensive, but if you only consider the cost of crash testing, it is very high."

"There are so many domestic institutions and car companies that invest tens of billions of yuan in dummies every year."

"The key is that if we want to conduct more tests, the cost will double."

"So starting last year, we worked with Nanshan Robotics to research dummies for crash tests."

Rao Yongxiang first briefly introduced the general background of the dummy project to Cao Yang.

Although he knew that Cao Yang was very familiar with the development process of automobiles, there were so many things to do that it was impossible for him to pay attention to everything.

When it comes to knowledge about car dummies, Rao Yongxiang feels that he is definitely more professional than Cao Yang.

After all, I have been studying this for a year.

Sure enough, after hearing what Rao Yongxiang said, Cao Yang was also a little surprised and asked, "Is the cost of the dummy so high?"

"Yes, a dummy costs about 1000 million yuan. The key is that you have to pay whatever price they offer. You have no right to bargain."

Rao Yongxiang said a little helplessly.

Li Shigui, who was standing next to him, was in charge of studying the mannequins. After listening to the conversation between Cao Yang and Rao Yongxiang, he also added some relevant information.

"Mr. Cao, why is this mannequin so expensive? There is actually a reason."

“First, the development cycle of test dummies is very long.”

"The automobile industry has been around for more than 100 years, but dedicated crash dummies only appeared much later."

"The birth of the dummy was developed by foreign researchers based on a large number of cadaver collision tests and dissections. In order to further enrich the age, gender and body structure of the test, the research and development cycle of a dummy model often takes 10 to 15 years."

Li Shigui said this while looking at Cao Yang's reaction.

Feeling that Cao Yang was quite interested in this matter, he continued to introduce it seriously.

"The reason why it takes so long to develop is that their test dummies go through roughly three stages."

"In the first stage, corpses were used. According to later calculations, the car designs improved by the corpse test data saved at least 8500 people every year."

"However, there are huge ethical issues with using corpses for testing, so it is basically not used now."

"In the second stage, animals were used. In those days, it was common to see large live animals such as dogs, chimpanzees, baboons and pigs tied to cars for crash tests. The best animals were pigs."

"In 1980, L'Epoque magazine revealed that a French research institute was commissioned by European car manufacturers to conduct animal crash tests, using thousands of pigs every year."

“Animal testing also faces great moral condemnation and is very costly; General Motors alone, for example, kills 19000 animals.”

"So the industry evolved to the stage of dummies. In 1966, the National Traffic and Motor Vehicle Safety Act was passed in the United States, which required cars to be equipped with seat belts and required companies to develop highly accurate crash test dummies."

“That should be the beginning of all the car crash dummies we have now.”

Nanshan Robot has spent a lot of manpower and resources to research dummies, so Li Shigui naturally wants Cao Yang to fully realize the difficulty of developing a dummy.

Otherwise, everyone would think that Nanshan Robot spent more than a year developing a dummy, and there is nothing to praise about it.

The R&D investment involved may take several years to recover.

"It often takes a long time to develop a product in Europe and the United States. In addition to the special features of the mannequins, it's more because the people there are not very efficient."

"And things like dummies don't need to be updated very often."

Based on his understanding of European and American companies, Cao Yang felt that it would take more than ten years to develop a dummy, which is as slow as a snail.

The idea of ​​striving for excellence is a bit untenable.

All we can say is that people have exaggerated the difficulty of developing the dummies in order to sell them at a good price.

"There is indeed a reason for this, otherwise we would not have been able to develop a similar dummy in less than two years."

Li Shigui would definitely not deny what Cao Yang said.

But he must take this opportunity to explain the actual situation.

So after he explained it, he immediately added: "In addition to the issue of development time, the selection of materials for the dummy is also quite demanding."

"The mannequin not only has a lifelike appearance, but also has complex ribs, spine, simulated muscles and even internal organs, and the choice of materials is quite demanding."

"The materials used for the dummy's chest, shoulder blades and ribs are all different. There are many parts and they are well made. The R&D costs for these parts are as high as several million yuan, or even tens of millions of yuan."

"Also, the requirement for accurate data collection will lead to a significant increase in the cost of the dummy."

"During the collision test, the dummy collects data through a large number of sensors installed on the body. Some sophisticated sensors can even accurately detect the degree of damage to each joint."

"A dummy is usually equipped with 60-200 sensors, which mainly measure data such as acceleration, angular velocity, force, bending moment and displacement. As the number of sensors increases, the price of the dummy becomes higher and higher."

"Because their bodies are covered with bionic structures and sensors, within 2.5 seconds of feeling the impact, data channels all over their bodies respond simultaneously, and data collection is completed in the blink of an eye, which is comparable to a high-precision instrument."

Cao Yang naturally understood what Li Shigui said.

Sensors can be very cheap or ridiculously expensive.

It is indeed difficult to make a dummy cheap when so many sensors are used on it.

But it is definitely not as high as tens of millions for a dummy.

"Different dummy models can simulate passengers of different ages, genders, heights and weights. Their body shapes and strengths are also different. The most expensive dummy is worth as much as 1100 million yuan."

"So in a crash test, smashing a few cars is actually nothing. The dummy inside may be 100 times more expensive than the car."

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