Set sail1992

Chapter 1387 The old ones are good, but the new ones are better!

After visiting Huateng Industrial Group with great difficulty, everyone naturally did not want to just take a quick look. After two days of visiting, Mr. Li boldly asked Zhang Qihang: "Mr. Zhang, can we take a look at your plug-in hybrid models?"

After that, he hurriedly explained: "I don't want to promise your company's confidentiality. If it is convenient, just allow us to visit the power model of the car."

Although the next-generation Excelle of Huateng Group has not been officially released yet, everyone knows that the next-generation Excelle has a plug-in hybrid version. With the previous discussion, everyone knows that this plug-in Excelle of Huateng Group will definitely be included in the subsidy list, so everyone is naturally extremely curious about this car.

The other CEOs also had the same thought in their minds, but at this point, no one was willing to speak up, for fear that Zhang Qihang would misunderstand that they were relying on their numbers to put pressure on him.

Zhang Qihang hesitated for a moment, exchanged glances with Mr. Feng beside him, and finally declined everyone's request: "I'm sorry, everyone, plug-in hybrid technology is our company's top secret, and it is not convenient for you to visit for the time being. But if you are interested, you can visit our next-generation 52V hybrid system."

Zhang Qihang's words made everyone a little confused: What? Huateng Group also has a 52V hybrid system?

The reason why we need to make 48V hybrid is that voltages below 60V are safe for the human body. Below this voltage, the vehicle does not need any special insulation reinforcement.

Since 60V is a safe voltage for the human body, why is 48V chosen instead of 50V, 52V, 54V or even 58V which are also lower than 60V? It is because people are used to doubling the voltage based on 12V. For example, the voltage of a passenger car is 12V, while the voltage of a high-horsepower commercial vehicle such as a tractor is 24V. Therefore, out of inertia, 12V is directly multiplied by 4, or 24V is multiplied by 2, which becomes 48V.

Now Huateng Group has developed a 52V, which adds 48V to the 6V. This makes everyone very confused and difficult to adapt to.

Seeing everyone's confused look, Zhang Qihang knew what everyone was thinking and explained: "Higher voltage allows us to make more powerful motors. With the support of 52V voltage, we have increased the power of the motor to 15KW, which can make the car's pure electric driving speed reach 40 kilometers per hour.

According to our calculations, with only a 6V increase in voltage, the cost of the entire system has only increased by less than 300 yuan, and it can save 2.5 to 3 liters of fuel per kilometers in urban conditions."

what? !

Zhang Qihang's words were like dropping a bomb in the crowd, and the CEOs of various car companies were immediately in an uproar: Great! I knew that Huateng Group must have some good stuff hidden in its hands, but I didn't expect that you actually hid so many good things!

Mr. Feng at the side added at the right time: "This 52V mild hybrid system is an upgraded product that we plan to use to replace the 48V mild hybrid system."

This time, Mr. Li did not hesitate and immediately responded, "Yes! Of course I want to visit!"

It would be fine if you didn’t know, but now that you already know that such a thing exists, if you don’t take a closer look and learn more about it, it would be like missing out on a hundred million!

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

  Half an hour later, everyone was shocked when they saw the complete set of 52V power model in front of them: the front end of the engine was clean and there was no wheel train equipment, let alone the familiar generator, starter, water pump, air-conditioning compressor, hydraulic power steering pump, even the BSG motor that comes standard on the 48V mild hybrid system was missing!

The entire front end of the engine is incredibly clean!

Looking at the clean power model at the front end, Mr. Li hesitated for a moment, but still asked Zhang Qihang: "Mr. Zhang, where is the BSG motor on our system?"

  He did see a thin motor located between the engine and the gearbox. Could it be that Huateng Group moved the BSG motor on the 48V hybrid system to this position?

What are the advantages of doing this?

Mr. Li believes that if there were not enough benefits, Huateng Group would not have been able to move the BSG motor from the front end of the engine to the rear end of the engine.

"As you can see, we have eliminated the BSG motor connected to the front end of the engine by a belt, and instead used an ISG motor at the crankshaft end of the engine... We call the motor installed in this position an ISG motor... The advantages of installing the motor in this position are very obvious. First, the motor and the engine can be rigidly connected through the clutch, avoiding the situation where the belt cannot withstand high power and high torque, which allows us to make the motor more powerful;

Secondly, because the motor is located at the rear end of the engine, it means that when the electric motor is doing work, the engine can be completely stopped, unlike the BSG motor, which is located at the front end of the engine. As a result, when the BSG motor is doing work, it has to be forced to drive the engine to run together. At this time, although the engine does not ignite, the internal resistance is real, which means that a considerable part of the motor's power is used to overcome the engine's resistance. This is a huge waste!

With the ISG motor, this part of the waste is completely avoided, which is why a 15-kilowatt motor can push the car's pure electric speed up to 40 kilometers per hour."

Zhang Qihang's face was full of joy - this was all due to his pride in his own technology. At the end, he even made a little joke with everyone: "Of course, due to the limitation of battery capacity, the pure electric driving distance is only a few hundred meters. There is nothing we can do about it."

Everyone nodded in agreement, as if they had finally seen the light at the end of the clouds: Yes, the BSG motor is indeed good, but compared to the BSG motor located at the front end of the engine, the ISG motor located at the rear end of the engine is more suitable.

Some people even whispered and discussed quietly...

"If I remember correctly, the motor of Hongda's IMA hybrid system is also located between the engine and the gearbox, right?" "It seems so."

"It's exactly this position. I remember it very clearly. Moreover, the motor of the IMA hybrid system used by Honda on the Fit and Insight has a power of only 10 kilowatts. Only the motor used on the Civic and CR-Z has a power of 15 kilowatts."

The person next to him immediately took over the conversation and responded, "Yes, I know that too, but the 10-kilowatt version can't even run on pure electricity. As for the one equipped with a 15-kilowatt motor, it can run on pure electricity. The annoying thing is that Hongda looks down on us. Even if it is a really bad hybrid system, they didn't introduce it to our country. They only sell it in Japan and North America."

"Life is not a good thing. At least the Otter has introduced the Prius into China. Although the Prius is expensive, Hongda refuses to introduce it..."

…………

Everyone was filled with righteous indignation, and unsurprisingly, the topic went off topic and started criticizing Hongda.

Yes, who wants to be looked down upon? And the more important a person is, the more he cares about his face.

But someone finally discovered something was wrong: "Huh? The power of Huateng Group's ISG motor is 15 kilowatts, but the voltage is only 52V. Does anyone know what the voltage of Hongda's IMA system is?"

"That... I don't know."

"I do not know either."

“I haven’t paid attention to this yet…”

…………

Everyone looked at each other in bewilderment, and for a moment they realized that they didn't even know what the voltage of the HTC IMA system was.

Seeing that no one knew, Zhang Qihang said, "I do know this, it's 144 volts."

  144 volts?

Zhang Qihang's words made everyone stunned, and then their eyes changed when they looked at the 52V hybrid system in front of them: Huateng Group's 52V hybrid system has an overall structure that is almost identical to Hongda's IMA hybrid system, even the power of the motor is the same...

Mr. Li's brain was working the fastest. He asked Zhang Qihang first, "Mr. Li, since the motor of your group's hybrid system is the same as that of the Hongda IMA system, both are 15 kilowatts, and the voltage is only 52V, and there is no need to strengthen the insulation, then in theory, is your hybrid system similar to the Hongda IMA system in terms of fuel saving effect, but the cost is lower?"

"Shua..." All the other CEOs reacted instantly and looked at Zhang Qihang in unison.

Zhang Qihang hesitated for a moment and said tactfully: "Well... how should I put it? The power battery capacity of the Hongda IMA system is about 0.94 degrees, and in order to control costs and reduce the cost of the entire system, the power battery capacity is only about 0.4 degrees."

President Li once again grasped the key point in an instant: "In other words, the performance of our Huateng Group's hybrid system is similar to that of Hongda IMA, but the overall cost is lower than that of Hongda IMA?"

Zhang Qihang was very modest. He replied: "That's not very rigorous. After all, the labor costs in the two countries are different, and there are many differences, so it's not easy to make such a simple comparison."

"..."

No one spoke for a while, but they looked at each other and communicated with each other through eye contact.

Who is more stupid than who in this idea? Some things are just that Zhang Qihang is embarrassed to say, it does not mean that everyone does not understand. The meaning of Zhang Qihang's words just now is clearly: our Huateng Group's 52V hybrid system can fully provide performance similar to that of the Hongda IMA hybrid system, but the cost of the entire system is much lower than that of the Hongda IMA system!

  It's a lot lower!

Previously, everyone was very excited about Huateng Group’s 48V mild hybrid system with BSG motor as the core, but now looking at this 52V hybrid system with ISG motor as the core, my God, I’m excited, this new system is even better!

(End of this chapter)