1991 Starting from the core

Two sets of models of engines and steering wheels made of polyethylene were carried into the conference room.

The ratio of these two sets of models to the real thing is about 4:1, which is very suitable for explanation.

Mr. Shan, please take a look. This is the 2.5-liter V6 direct injection engine and electronic control assembly of the Audi A8. The electronic control part is orange in color. This set is the original Volkswagen design.

As Chen Jianfeng explained, Su Yuanshan stood up, and when he saw him standing up, everyone gathered around him.

The Audi A8 only adopted the latest electronic anti-theft system provided by Siemens this year, using the UESTC9432 series microcontroller... At this point, Chen Jianfeng paused, coughed slightly, and said with a hint of calmness in his words: This piece I also made a small contribution to the microcontroller.

——He was also born in Electronic Science and Technology, but he was a few years later than Qin Weimin and others. He did not catch up with Yuanxin's entrepreneurship, but he caught up with Electronic Science and Technology's continued research on the UESTC91 series of microcontrollers and participated in the scientific research group of 32-bit microcontrollers. A beautiful master's thesis was also given. After graduation, he also directly joined the YX architecture team of Yuanxin.

Using a 32-bit processor, they can theoretically achieve a password combination of 2 to the 32nd power. Compared with the resistive controller currently used by General Motors next door, I don't know how much higher it is...

Seeing Su Yuanshan listening attentively, Chen Jianfeng suddenly thought that Mr. Shan didn’t even have a copy of it and probably had no idea about the engine electronic anti-theft system. He quickly explained: “Mr. Shan, let me first introduce to you the current Siemens system. The latest IMMO system.

First, after inserting the key, turn the switch, and then there is a row of coils at the keyhole that will release electromagnetic waves and activate the semi-active RFID system in the car key. That's it.

Chen Jianfeng pointed to the key handle on the model as he spoke: Then the chip sends out an encrypted data signal and exchanges data with the EMS system (engine control unit) for data exchange and verification matching. If the verification passes, the EMS system starts to work.

If the match fails, it cannot start.

And, as I just said, they use a 32-bit chip as the main control chip, so they can achieve password combinations that theoretically cannot be guessed.

Yeah. Su Yuanshan nodded. Although he didn't know much about IMMO (Immobilizer, engine locking system), he was engaged in chip and software design... Understanding the principle of this anti-theft system is really difficult. The elementary school math Olympiad question is simple: Sounds good, but what next?

Then... we felt that this thing was a bit unreliable.

Su Yuanshan hummed, thought for a while and said: It is indeed a bit unreliable. The password that has been combined 400 million times can indeed be unguessed and not repeated. But when it is started, the radio frequency signal can be intercepted and collected. Yes, when the time comes, just copy the radio frequency signal and deceive it.”

As soon as these words came out, Chen Jianfeng immediately blinked hard several times, and the other people present also had different expressions.

Especially Li Junyou and Sun Xiaochuan, they are the only two people in this conference room who are serious about building cars, not in the field of chip and electronic circuit design.

They both spent a lot of effort to fully understand the principles of this anti-theft system... But Mr. Shan seemed to have understood the principles in an instant, and even thought of it casually. Crack method.

Yes, this is where it is unsafe, so we use rolling codes - adding an algorithm-generated encryption code that changes in real time to the matching code. Even if the signal is intercepted, it cannot be started by copying it.

Chen Jianfeng pointed to the blue model next to him: Mr. Shan... look here, in addition to controlling the ignition system, we have integrated the oil system, instrument system, and even the vehicle's door and window locks into the EMS system. .”

Moreover, the failure to complete the ignition start is only the most basic function. Subsequent door and window locking, siren warning, even automatic alarm, automatic sending of positioning, etc. can all be arranged - we just don't have time to spare.

And these are just the beginning.

At this time, Wang Xiaochun, who was in charge of the automatic navigation function, smiled and interrupted: Mr. Shan, let's think about it seriously and think that if we don't care about the cost, we can also turn the car navigation into a smartphone with Internet access, and use the database to monitor the car's data. Management of various data - as long as you think of putting the network in the car, there are endless possibilities. Anti-theft becomes the least need to consider.

I guess by then cars can do whatever mobile phones can do, right?

Listening to everyone chatting, Su Yuanshan was quite emotional - it seems that the people at Yuanxin can indeed bring about innovation without the pressure of KPI.

Well, that's right. Of course, cars in the future will also develop towards intelligence. Su Yuanshan stopped everyone with a smile: But, we know that the automobile industry is different from mobile phones. Compared with advanced technology, it is more We care about safety, and it is absolutely safe. This is why Suo Xin’s Mr. Wang has never come over.”

Speaking of Wang Chuanfu, Su Yuanshan became even more emotional - it is said that the nature of a country is easy to change but hard to change. Even because of Yuanxin's wings, it has already caused a tsunami. When Su Yuanshan mentioned to Wang Chuanfu that he wanted to build a pure electric car , Wang Chuanfu’s eyes suddenly became very bright.

Obviously, Lao Wang has always had a car dream.

Therefore, Suo Xin has been insisting on working with both hands in the past two years, and he is even more focused on car batteries - and even if it is not for the car dream, simply to expand the lithium battery market, he has to promote car power batteries. Okay - just like an LCD panel, how many mobile phone orders can be converted into an order for one TV?

Now, the car power battery has finally completed the safety test, which also means that electric vehicles can be put on the agenda.

Seeing that the car was mentioned, Li Junyou became excited again: Mr. Shan? What type of electric car are you building?

Of course it's a supercar! Donald understood without the need for an interpreter. Regardless of his identity as the team leader who came to cooperate with TI, he immediately shouted: Su! Supercar!

Li Junyou and Sun Xiaochuan were stunned for a moment when they heard about the supercar, but the eyes of the others were obviously shining! They all looked at Su Yuanshan expectantly.

Yeah, supercar.

Su Yuanshan smiled and nodded.

good!

Led by Donald, Chen Jianfeng, Wang Xiaochun and others all applauded.

Sun Xiaochuan and Li Junyou also applauded with everyone, but there was more worry in their eyes.

But then, Sun Xiaochuan pursed his lips and nodded: Yes, supercars are obviously the most suitable type to use the cutting-edge technologies of the current research institute. After all, the cost is too expensive... Only people who can afford supercars will do it. No matter the price.”

Mr. Sun, this is just one aspect. Chen Jianfeng glanced at Sun Xiaochuan and explained: Only supercars can reflect Yuanxin's bigness.

Sun Xiaochuan smiled slightly. He naturally knew that the people who came from Yuanxin were all arrogant, so he didn't intend to say anything. Instead, he immediately considered the problem from the perspective of the chief engineer.

But the primary problem with supercars is to run fast - can electric supercars be as good as today's traditional supercars in terms of overall performance? Just after he finished speaking, Sun Xiaochuan paused and immediately added: I believe , to accelerate to 100 meters, electric motors have advantages over fuel engines, but what about after 100 meters?”

Moreover, pure electric vehicles also mean that we have to abandon all transmission technologies of traditional fuel vehicles and develop a new set of speed control technologies ourselves. This... Sun Xiaochuan smiled bitterly: We don't even have to copy the homework. ——The so-called hybrid vehicles launched by Toyota last year are essentially fuel vehicles.”

——He is not a person who is afraid of difficulties, but this difficulty seems a little too great.

Su Yuanshan took a deep look at Sun Xiaochuan.

Seeing that Sun Xiaochuan could realize the current predicament of pure electric vehicles in just a few words, it seemed that he had indeed made a mistake.