Set sail1992

The shocked Lao Wang couldn't help but asked Zhang Qihang: "Mr. Zhang, do you really have a second ths hybrid technology route?"

Zhang Qihang did not answer directly, but asked instead: "Is this strange? Even automatic transmissions can have so many technical routes such as AT, CVT, DCT, AMT, and parallel shafts. Whoever stipulates that the hybrid can only steal oil?" Rex ths this technical route?"

"..."

Old Wang heard this and stopped talking: Yes, although the Stealing Oil Prius is the world's first truly mature hybrid car that is already in commercial promotion, who said that there is only the Stealing Oil Ths as a hybrid technology route? ?Realizing this, Old Wang began to tremble with excitement.

Before that, Lao Wang, who had read the report on the Stealing Oil Otter Prius, felt that the technology of the Stealing Oil Otter is very powerful. Although he also had in his mind "In the future, when our Yadi car develops, it will be sooner rather than later." "Hybrid car" idea, but it's just a vague idea. Pharaoh doesn't have a concept in his mind when to start researching hybrid technology and what it needs, but now, Zhang Qihang seems to be A window opened in front of him.

Looking at the thoughtful old Wang, Zhang Qihang pondered for a while, and said, "For example, add program to mix."

"Extended program hybrid?"

Lao Wang repeated it, his face full of confusion.

It's no wonder that Lao Wang has such an expression and reaction. After all, Lao Wang is now a "battery king" rather than a "car king". It can be said that he has put a lot of effort into the automotive industry. It is not surprising that he has never heard of the extended-range hybrid, which is a more partial hybrid model—for example, Li Dacheng, one of the four domestic mini-car manufacturers One of the bosses of Jiangbei Alto doesn't even know about THS chaos and Atkinson cycle.

It is precisely because Li Dacheng doesn't even understand ths, so when Zhang Qihang mentioned the concept of "program-extended hybridization", the expression on his face was much calmer than that of Lao Wang: Anyway, I still don't understand.

"Yes, extended-range hybrid," Zhang Tou said: "Old Wang, you probably have realized that the hybrid power system of the Stealing Oil Otter Prius is composed of an Atkinson cycle internal combustion engine, a nickel-chromium battery pack and a ths hybrid transmission. And the supporting electronic control system is composed of these four parts, but on the other hand, if there is no Atkinson cycle engine dedicated to hybrid, can it be impossible to hybrid?

No, I don't think so.

Why does the Stealing Oil Otter Prius use an Atkinson cycle internal combustion engine?In the final analysis, it is to use this structure of internal combustion engine to have higher thermal efficiency in the middle speed range, but on the other hand, does the conventional Alto cycle internal combustion engine not have its own high fuel efficiency zone?

Of course not, we all know that the combustion efficiency of the internal combustion engine of the Otto cycle is the highest under the condition of medium speed, low load, and constant speed operation, that is, when driving at an average speed of [-] to [-] kilometers per hour on the expressway, at this moment Internal combustion engines are the most thermally efficient, right? "

Lao Wang nodded: "It is indeed so."

At this moment, Lao Wang was a little excited, and he suddenly realized that Zhang Qihang was telling himself something very remarkable.

...

Zhang Qihang nodded slightly: "Now let us make a hypothesis, that is, after determining the best working condition of an internal combustion engine using the Otto cycle, whether it is possible not to let this engine directly drive the vehicle, but to use this engine Based on the best working conditions and the best fuel efficiency zone, let it drive a generator to generate electricity based on this best fuel efficiency zone?

The answer is of course no problem.

Ok, I have confirmed this point, so well, we can make subtractions based on the power system of the Stealing Oil Otter Prius, and finally get an Otto cycle internal combustion engine, a generator, an electric motor and a simpler electric motor. control system.

The internal combustion engine drives the engine to generate electricity, and the electricity generated by the generator can be used to drive the electric motor and charge the battery. In this way, this is a range-extended hybrid electric vehicle driven by a pure electric motor.

Compared with a hybrid car like the Stealing Oil Otter Prius, this extended-range hybrid car cannot provide driving force by the internal combustion engine and electric motor together like the Stealing Oil Otter Prius, so its performance in some working conditions is definitely not as good as The fuel-saving effect of the Stealing Prius is definitely not as good as the Stealing Ths hybrid system.

However, compared with the Stealing Prius, the structure and working logic of the entire power system are simpler, and it perfectly avoids the technical patents of the Stealing Prius. At the same time, the most important thing is that it is also quite good compared to the current pure fuel vehicles. fuel-saving effect.

I have done calculations, if we build this extended-range hybrid system based on the 2.0 internal combustion engine of our Huateng Group, equip this internal combustion engine with a generator with a maximum generating power of 40kw, an electric motor with a maximum instantaneous power of 70kw and a Assemble a 1.5 kWh battery pack, and then build a small car based on this. The urban fuel consumption of the vehicle can be controlled at about 5 per 7 kilometers, and the high-speed fuel consumption can be controlled at about [-]. The fuel saving effect is very obvious. ...Old Wang, what do you think of such an extended-range hybrid system? "

Old Wang was already blushing, and felt that Zhang Qihang's words had opened a new door for him. Now that he heard Zhang Qihang's words, he nodded quickly and said: "Not bad! Very good! If you do this, it is indeed It perfectly avoids the technical patent of THS, and at the same time, it has almost the same efficiency and fuel-saving effect as THS in daily urban and suburban use. It can only be said to be insufficient... The only disadvantage is that under the high-speed and open space you mentioned, the efficiency of this extended-range hybrid is not as good as the ths hybrid system of the Stealing Oil Otter Prius.

But this is not a problem. I firmly believe that with the development of technology in the future, we will be able to find a technical route that can avoid the patent of ths, and at the same time allow the engine to directly provide driving force for the car. In this way, this set of power The efficiency of the system is higher,"

Speaking of this, Lao Wang raised his thumb and said in a sincerely convinced way: "Mr. Zhang, you are really good! This is the hybrid technology that Huateng Group is going to develop, right? No problem, Yadi Battery will fully cooperate with you , to develop a power-type Ni-MH battery suitable for use in automobiles."

As a top expert in the field of nickel-metal hydride and nickel-chromium batteries in China, Lao Wang certainly knows that the nickel-chromium or nickel-metal hydride batteries used in automobiles are very different from the nickel-chromium and nickel-metal hydride batteries used in mobile communication devices such as mobile phones and cordless phones. Power batteries not only require high-current charging and discharging capabilities in a short period of time, but also have higher requirements for overall life and reliability.

...

But these are not problems, but they have inspired the fighting spirit of Lao Wang, a battery expert: If Yadi Battery develops a power-type nickel-chromium or nickel-metal hydride battery that meets the requirements, does it mean that our Yadi Battery has become Manufacturers and suppliers of power nickel-chromium and nickel-metal hydride batteries?

On the contrary, Director Li, it was only now that he belatedly realized what a shocking technology Zhang Qihang just said. Qihang asked: "Mr. Zhang... this... such an advanced technology, you just said that?"

Zhang Qihang smiled and explained: "Director Li, you have misunderstood. I did not propose this extended-range hybrid technology. In fact, this technology has been around for many years."

"Ah?" Director Li looked confused: "Is that so?"

"That's true," Zhang Tou said, "For example, those diesel locomotives running on our national railways, these locomotives that use diesel engines as power, the diesel engines on them are actually not like cars. The diesel engine is connected to the gearbox, and then The way to connect to the wheels is that the diesel engine drives the generator to generate electricity, and then uses the generated electricity to drive the traction motor to pull the entire train forward.

It is said that the driving method of the train diesel locomotive is a series-type extended-range hybrid, but there is actually no problem at all. "

Hearing what Zhang Qihang said, Director Li was stunned: "Oh? Is this how the front of a diesel locomotive works?"

As a native of Northeast China, Director Li is naturally no stranger to trains. He has seen them all from the early steam locomotives to the diesel locomotives at the back and then to the electric locomotives. But what she never expected was that diesel locomotives It turned out to be electric drive?

This has completely overturned Director Li's understanding of trains. He always thought that diesel locomotives are the same as steam locomotives. The engine drives the transmission mechanism to drive the wheels. But now Zhang Qihang told himself that diesel locomotives have thick eyebrows and big eyes. The guy has already "betrayed"?

Zhang Qihang shook his head and said: "Not all diesel locomotives are driven by electricity, and some are driven by traditional mechanical transmission. If I remember correctly, it seems that the two diesel locomotives ny5 and ny7 have mechanical hydraulic transmission, but never Worldwide, electric drive is more mainstream for locomotives that use internal combustion engines."

"Is that so..."

Li Dacheng felt that he had really gained knowledge.

He didn't doubt that Zhang Qihang was just talking nonsense to fool himself, because he didn't need to do it at all, but in this way, he could understand why Zhang Qihang told Lao Wang and himself so unreservedly about this extended-range hybrid technology Listen, because this technology is nothing unusual, it's just transferred from the field of trains to the field of cars.

It was Old Wang, who asked Zhang Qihang enthusiastically: "Mr. Zhang, so, is Huateng Group going to develop a hybrid car with an extended range model?"

Zhang Qihang didn't deny it, nodded and said: "It can be regarded as accumulating a little experience in the development of hybrid power systems."

....................................

After participating in the cooperation signing ceremony between Jiangbei Machinery Factory and Yadi Battery, Zhang Qihang returned to the company and went to find Li Changming after finishing the work at hand.

...

Speaking of which, if the cooperation with Puling Machinery Factory made Huateng Industrial Group earn its first pot of gold, then Huateng Industrial Group's second pot of gold was the project of adding electric starters to agricultural machinery, and Li Changming, the former Shungeng The engineer of the City's Second Electric Machinery Factory played a huge role in this project. Although he seemed to have gradually disappeared after joining the Huateng Industrial Group in the later stage, he could not be seen in the management team, but this It doesn't mean that this guy is missing, on the contrary, not only is this guy not missing, but he is living a very prosperous life:
The current Li Changming is the general manager and senior technical consultant responsible for the research and development of electric bicycle motors in the Technology Research and Development Center of Huateng Industrial Group. The treatment, the small life is comfortable.

Seeing Zhang Qihang, Li Changming, who was quite rich, quickly stood up and greeted him: "Mr. Zhang, you still remember our department."

Looking at Li Changming with a resentful expression, Zhang Qihang couldn't help being happy.

To put it bluntly, although the electric bicycle business has created a lot of money for Huateng Industrial Group every year, the technical content of this thing is so low that even though the electric bicycle business sector has created a lot of money for Huateng Industrial Group every year Lilan has more than 10 billion yuan, but its sense of presence is not even as strong as that of the drone business sector. As for Li Changming, if I remember correctly, this is probably the second time I have seen this guy this year. No wonder this guy is so "resentful".

Looking at the resentful Li Changming, Zhang Qihang said with a smile: "Old Li, look at what you said, your unit is a hero of our group, how could I not remember you?"

Li Changming didn't give Zhang Qihang the face of the leader of the group at all, he curled his mouth and said, "Oh... I didn't see it..."

After all, they were friends for many years. The two joked for a while. Li Changming, who knew how busy Zhang Qihang was at work, stopped being polite to Zhang Qihang. , tell me, what's the matter?"

Zhang Qihang was not polite to Li Changming, and said, "I bought a few Prius stealers from the United States before, and asked the people in the center to dismantle them and study them. Have you looked at them?"

"I must have passed," Li Changming said, "This is the world's first hybrid car that has really reached the stage of commercial sales. It is not seen in China at all. Now our group not only has it, but also needs to dismantle it." Understanding, learning, how could I miss such an opportunity?"

Zhang Tou, then asked: "Did you participate in the dismantling of the ths gearbox?"

"Well, they called me for help." Speaking of this, Li Changming said with admiration and admiration: "I have to say that the technology of the Dongying people is really good. The drive motor is so small that it has The maximum power of 13 kilowatts and the maximum torque of 29 Nm are really amazing, and the generator, just such a small lump... Whether it is a motor or a generator, their coil winding methods have given us Great inspiration...”

Set sail1992