A basic common sense is that in the urban car environment that requires frequent start acceleration, frequent braking, and congestion from time to time, the fuel consumption of 100 kilometers in the city is much more than the fuel consumption of 100 kilometers in the usual road section. An ordinary car with a displacement of 2.0L, cruising at a speed of 90 to 100 kilometers per hour, fuel consumption is usually about 6, but if it is a pure urban area with a slight congestion environment, 100 kilometers of fuel consumption is easy on 9, the throttle is a little heavier, 10 is very easy, if the congestion is more serious, then the fuel consumption is not a spectrum, 15 is not a problem, 20 is also very easy. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

But in any case, it is a recognized fact that pure urban fuel consumption will be higher than high-speed cruise, even if it is an unobstructed section of the urban area, if you want to achieve the same fuel consumption in urban areas and high-speed cruise, and the more congested the more fuel-efficient, this is simply impossible, perhaps 100 years after the emergence of new modes of transportation can do this.

Chen Geng didn't speak, but took out a document from the drawer, wrote something on it, and then pushed it in front of Shinichiro Tanaka: "This is a confidentiality agreement. ”

If you owe this non-disclosure agreement, I'll tell you how. This is the meaning of Chen Geng's action.

Shinichiro Tanaka didn't hesitate for even a second, took the document and wrote his name on the document without saying a word, with a hint of hidden disbelief on his face: "Your Excellency, how did you do it?" I just can't get it. ”

"It's very simple, this is a hybrid system," put away the confidentiality agreement, Chen Geng took a blank piece of paper, and drew a schematic diagram on it: "This hybrid system is composed of a traditional internal combustion engine, an energy storage battery, two motors and generators with both electric and power generation functions, and the role of this E-CVT gearbox is to coordinate these systems to work together, and it is also the core system of this hybrid system, in addition to the electronic control system, the system for energy recovery when the vehicle brakes and decelerates......

The structure of this set of E-CVT gearbox is very simple, consisting of an external gear ring, a planetary gear in the middle and a sunyang wheel in the middle, the outer gear ring is connected to the No. 2 motor and the output shaft, the planetary gear set in the middle is connected to the internal combustion engine, and the sun gear in the middle is connected to the No. 1 motor.

The system works in such a way that the combustion engine itself does not work during start-up and slow acceleration, and the energy storage battery supplies energy to the motor to drive the wheels, so that the unnecessary consumption of gasoline can be avoided, which is always the most fuel-intensive at the beginning...... When the brakes are applied, the regenerative braking system restores the energy and stores it in the battery, which is just in time for the next acceleration ...... start"

Shinichiro Tanaka was unimpressed at first, but the more he listened, the brighter his eyes became:

Under a series of different working conditions from starting to braking stop, the requirements for power and torque are greatly changed, and the traditional power car needs a gearbox to adjust the power output of the engine because of this, but the hybrid system designed by Chen Geng is coordinated by this E-CVT gearbox, and the engine power obtained on the outer gear ring can be continuously and continuously changed between a certain threshold by controlling the different speeds of the two motors, so that the car can achieve the magical effect of stepless speed change, and at the same time, It is true that the more congested, the more fuel-efficient.

Of course, compared with the traditional "internal combustion engine + manual transmission" power mode, this hybrid system is a "internal combustion engine + energy storage battery + No. 1 motor + No. 2 motor + E-CVT gearbox + energy recovery system + central control computer" collection, its complexity far exceeds the current traditional power car, especially the central control computer, it needs to control the engine fuel supply and the voltage, phase and positive and negative on/off of the two motors in real time according to the operating conditions of the car. This puts forward extremely strict requirements for the design of the control logic of the central control computer and the calibration of the control strategy, not to mention the design and manufacture of the two motors, as well as the data collection and processing process of many of the sensors, which are very testing the designers, and the research and development difficulty of the whole system is not ordinary!

However, as a high-end practitioner in the transmission system industry, Shinichiro Tanaka knows very well that the hybrid system designed by Chen Geng with the E-CVT gearbox as the core is really very powerful, and has a very high possibility of engineering realization, or in other words, as long as he is willing to invest money and resources in research and development, he will be able to succeed.

"Great! Your design is truly great, Your Excellency! At this moment, Shinichiro Tanaka was completely convinced, Japan is a country with extremely scarce resources, so they will put great energy and enthusiasm into anything that can greatly save resources and reduce energy consumption, and will be particularly admired for those who can do the ultimate in this regard, he said impatiently: "Chen Jun, can you let me develop this system?" I promise......"

"Absolutely." Without waiting for Shinichiro Tanaka to finish speaking, Chen Geng happily agreed.

"Huh?" Chen Geng agreed too happily, Tanaka Shinichiro was stunned for a moment, blinked twice, Tanaka Shinichiro hesitated and confirmed to Chen Geng again uncertainly: "Mr. Chen, your answer is ......"

"You heard it right," Chen Geng nodded affirmatively: "If you are willing to take the lead in developing this project, of course there is no problem." ”

Chen Geng agreed too happily, but Tanaka Shinichiro was a little unconfident, hesitated, but he still asked, "Can I ask why?" ”

"Because of the lack of personnel, I completed the design a year ago, but Runhua Industrial lacked a project leader who could have a good understanding of both mechanics and electronics."

I see! Shinichiro Tanaka suddenly realized, yes, the Chinese may still have some foundation in machinery and industry, but in electronics, they can't even manufacture picture tubes for color TVs, they can only import them from Japan, and the complexity of this hybrid system is so complex, there are so many variables to consider, it is indeed difficult for Chinese.

Sure enough, only an elite like me can do such a difficult job!

Shinichiro Tanaka felt that he finally understood why Chen Geng was digging himself so hard, he must have developed this hybrid system!

Well, it must be like that.

Chen Geng's "value" made Tanaka Shinichiro completely relieved, and bowed deeply to Chen Geng, Tanaka Shinichiro said solemnly: "Your Excellency, please rest assured, I will go all out to complete this work, so that we can make Runhua Industry the most powerful automobile company in the world......"

"No, no, no," Chen Geng waved his hand: "What I mean is that you take out the sample as soon as possible, and then we go to Japan." ”

"To Japan?" Shinichiro Tanaka was so shocked by this divine turn of his boss that he almost jumped up: After making it, I went to Japan, are you kidding me?

"Don't you think Japan is the best market for this kind of hybrid car?" Chen Geng asked rhetorically: "Apart from you Japan, what other country in the world attaches such importance to energy consumption?" The K-CAR is a small car with energy saving as the first demand, and you have it all over the world, right? ”

"You're right, if the fuel-saving effect of this hybrid system is really as good as you say...... Sir, I'm not doubting you ......"

"I understand," Chen Geng nodded, signaling Shinichiro Tanaka not to be nervous: "It's right to be suspicious until you see the final product come out in person, you go on." ”

"Yes," Shinichiro Tanaka continued, "Japan is indeed the best market, but Japan is also known for its xenophobia, and even if our products are excellent, it will be difficult for us to successfully enter the Japanese market......

Without waiting for Shinichiro Tanaka to finish speaking, Chen Geng said: "It's okay, we can cooperate with Japanese automobile companies." ”

"I'm sorry," Shinichiro Tanaka was stunned for a moment, he wondered if there was a problem with his ears: "Sir, you said ......"

"I said that we can use this system to cooperate with Japanese car companies, as long as Japanese car companies are sincere enough, this is no problem."

Chen Geng's hybrid system is nothing unusual, in fact, it is the hybrid system that Toyota opened, which was first applied to the Toyota Prius, or the birth of the Toyota Prius is because Toyota is ready to develop such a hybrid car, but it is internationally recognized that the models equipped with this hybrid system can only be called fuel-efficient vehicles, not new energy vehicles, even if Toyota has exerted the so-called "craftsman" spirit in the Japanese character to the extreme in this system, It is still not possible to change the fact that fuel economy and new energy are two very different models.

But this hybrid system is getting now, it is too tall, Niu X's has simply broken through the sky, proper Zenith Star Technology, it is more suitable to use this system to fool the Japanese part-time job...... You can also fool the Germans, maybe you can fool the Germans and make them lame.

After developing his hybrid system, Toyota is too self-cherishing, holding on to it and refusing to let go, hoping to use this system to dominate the rivers and lakes for thousands of years, and the result is that everyone is forced to start anew without Toyota to play with Toyota - Toyota holds a good hand, but has not yet won.

But now, Toyota has not yet talked about the development of this hybrid system, Chen Geng is not welcome, since he has such a good hand in his hand, he plans to play a big - the real good things buddy himself hides, so he will not play with you.

Shinichiro Tanaka didn't know Chen Geng's little abacus, he was instantly moved, a 90-degree deep bow, Shinichiro Tanaka choked up and said: "Sir, on behalf of the people of Japan, I thank you for your generosity, you are a good person......" (To be continued. )