From knock-off old-man's electric vehicles to industrial giant

Chapter 105 Automatic Voltage Boost, Dual-Gun Fast Charging Technology!! (Two-in-one long chapter)

"We have made some progress in our self-developed fast charging module. We have now finalized the 30kW fast charging module solution for vehicles and have officially started production."

...

"In addition, at Mr. Xu's request, we have been conducting some reverse engineering research on existing fast charging pile technologies on the market. The progress is going smoothly, and we now have a complete self-developed verification solution for our internal 60kW DC fast charging pile."

At Xu Yi's prompting, Sun Pengfei stood up.

This time it was the R&D department's turn to shine.

The PPT on the conference screen changed again, showing the internally developed charging module architecture, as well as the latest self-developed 60kW charging pile exclusively for their Xingchen Motors.

Having developed its own fast charging module, it's only natural that it would be possible to develop its own charging piles, especially since reverse engineering makes commercially available 60kW charging piles a breeze.

Currently, commercial charging piles in China are generally equipped with DC charging power of 60kW. In some first-tier cities, including large shopping malls, 120kW DC fast charging technology has begun to be piloted.

However, there are not many new energy vehicles on the market that support 120kW DC fast charging technology.

Besides Tesla, there are only a handful of other models, all priced above 300,000 yuan.

"Mr. Xu, do you mean...we should also deploy our self-developed commercial charging stations on a large scale after the new car is launched?"

Many of the executives present looked slightly surprised.

The deployment of charging stations under our own brand has been discussed internally for some time.

Most people think this is a feasible solution.

However, there are not many car companies doing this in the market at present. The main ones are State Grid, TELD, China Potevio, and Star Charge.

Xu Yi hummed in agreement. The current commercial charging pile business of the brand has not yet reached the point of explosive growth.

Tesla has only set up a few trial operation sites with 120kW Superchargers in China. The large-scale deployment of the Supercharger network will only happen after it is established in Shanghai.

"We're not going to install this 60kW charging station, but a super-fast charging station with a power output of 120kW, which should be able to charge the car to 90% in about 50 minutes!"

This is what Xu Yi has to do.

Currently, there are only a few new energy vehicles on the market with 120kW DC fast charging capability. Their next new car aims to be the first to bring 120kW DC fast charging technology to a price point below 20 yuan!

Don't be fooled by the fact that 60kW DC fast charging stations are still very popular and common.

In the next two years, the widespread adoption of 120kW DC fast charging stations and the rapid expansion of new energy vehicles capable of 120kW DC fast charging from first- and second-tier cities will be visible to the naked eye, overturning previous development plans.

Therefore, in Xu Yi's view, laying 60kW DC fast charging stations is a pointless endeavor.

Even if it's built, it won't last two or three years before it has to be torn down and replaced with a 120kW one.

There aren't many technical bottlenecks in DC fast charging between 60kW and 120kW; it doesn't even require liquid cooling. The main issue is the high cost of hardware materials.

……

Can 120kW DC fast charging technology be brought into the affordable price range?!
hiss--! !

Several people at the scene gasped.

It's obvious that this is going to be a huge sensation, and the release of Polestar batteries will definitely shake up the entire domestic new energy market!

Currently, the few car manufacturers that offer this solution still regard this configuration as a symbol of "high-end" and only equip their high-end models with 120kw.

Also.

One of the most important reasons is that there are relatively few domestic suppliers of this module technology, and the cost is quite high.

Sun Pengfei:
"The key to mastering 120kW DC fast charging technology is the cost of power semiconductors. The current mainstream solution in the industry uses four 600V/60A IGBT modules, which cost about 20,000 yuan."

There are about three or four semiconductor companies in China that are focusing on this direction, using SiC modules to replace IGBTs, and have a certain mass production capability.

120kW快充仅需2个1200V/100A SiC MOSFET模块，成本降低至1.2万元。”

……

Once the technical direction was identified, various departments within the company began conducting research and searching for solutions.

CFO Liang Shouzhou said, "Besides BYD Semiconductor, which is well-known in the industry, there are several other domestic semiconductor manufacturers that we can consider as our main options."

This includes Tyco Technology, which, according to investigations, has preliminary SiC device design capabilities but is still in the verification stage and lacks mass production packaging capabilities.

We are currently in the contact stage.

Taike Tianrun is valued at approximately 50 million yuan. We can complete our Series A financing with an investment of 10 million yuan. If we invest 30 million yuan, then after negotiation, we have a good chance of acquiring a 60% absolute stake.

After some investigation.

As a leading new energy vehicle company in the industry, BYD has already made in-depth self-research and development in this area.

Dizi's early strategic vision
"We need to accelerate this process. We need to quickly raise funds and acquire resources to achieve low-cost packaging and mass production of 120kW SiC modules. This will be a major selling point for our new car and a core capability to enter the passenger car and taxi industries."

Xu Yi positioned the next vehicle as a dual "family car" and "commercial taxi".

In terms of the current industry...

Many commercial taxis are still specially manufactured models.

However, with the continuous development of new energy vehicles, taxis and private cars are gradually becoming indistinguishable.

After the 120kW fast charging network was deployed.

Many amateur taxi drivers buy private cars to drive taxis. Whether it's the configuration, space, chassis, or ride comfort, these cars are far superior to the "commercial customized cars" that taxi companies used to provide.

Many unemployed or laid-off individuals have also joined the ranks of amateur drivers because they own a new energy vehicle, and have actually earned quite a bit of money.

and so--

He wants both the home market and the taxi market!

If he absolutely had to find a future car model to compare it to, he would call the next car a combination of "BYD Qin + BYD Han"!

……

on site.

Many people are captivated by the exciting prospects of this industry.

Yu Nian stared at the supercharging network data distribution map on the screen.

He pondered for a moment, and roughly calculated the costs in his mind:

"Mr. Xu, if we bring the 120kW fast charging technology down to a price below 20, the resulting impact will definitely be revolutionary..."

"However, the deployment of supercharging networks is likely to be a long-term, capital-intensive investment. Not only is the capital investment large, but in the early stages, it will be difficult for us to form a network effect on our own, and the actual application performance may be a little worse."

...

no doubt.

There's definitely nothing wrong with this approach, and there won't be any technical issues either.

But the problem is that many things cannot be accomplished overnight.

The overall environment of the industry is what it is.

While 120kW DC fast charging is not uncommon in the market, its application is severely limited.

Currently, only a few first- and second-tier cities have pilot programs for 120kW supercharging stations.

If the blueprint described by Xu Yi is followed, then at least the supercharging network should achieve complete coverage of most cities.

To achieve this, can they rely solely on their Starry Sky brand?
How many years will it take to build the supercharging stations?

Xu Yi looked at him and smiled again:
"Old Yu, you've considered everything very thoroughly... So at this moment, we need to bring out our second core technology."

I call it 'DC charging automatic boost technology + dual-gun supercharging technology'!!

……

This research and development plan has only just begun.

Therefore, many people within the company who are not involved in technical research and development have not even learned about it.

what?
Automatic voltage boost? Dual-gun fast charging?

Everyone was taken aback!
Hiss—that's weird.

Just hearing the name evokes a feeling that's hard to describe.

……

"Yes, the research and development projects on automatic voltage boosting technology and dual-gun charging have also made progress recently. Let me explain in detail."

Sun Pengfei's expression turned slightly strange, and then he continued to explain with an extremely indescribable emotion.

Strictly speaking.

These two technologies are not particularly difficult to develop.

However, he was utterly amazed by the ideas Xu Yi provided.

And we would call it a "strategic weapon for market application"!!

"Automatic dynamic voltage boost charging technology, also known as intelligent dynamic voltage boost charging technology—"

When we first started developing our own fast charging station and fast charging module, we discovered a problem.

That is because of the different protocols of each company, the large battery solutions of each company are also different, and the battery voltage will fluctuate when different charging piles charge various types of vehicles.

This leads to a serious problem: fluctuations in current and voltage directly result in a decrease in charging efficiency.

Some 60kW charging stations may only be able to draw 45kW most of the time. If other new energy vehicles are charging at the same time, this fluctuation in current and voltage will be even greater.

This could lead to an awkward situation where one person can charge the phone and it will be close to full capacity, but if two people are charging, the charging power will be divided very little, and neither of them will be able to charge it quickly.

Therefore, we use the BMS to transmit the battery's real-time voltage, SOC, and temperature data to the charging station via real-time communication.

By dynamically adjusting the output voltage in real time, the charging current can be kept stable, thus enabling continuous high-power charging for the user!

……

The words fell.

The crowd nodded, looking like they understood but not quite.

This technology... sounds pretty good.

From a practical application perspective, it can definitely be considered a technology that benefits society!

Listen!

How practical!

They even considered third-party charging stations, and they genuinely addressed the issue to improve the user experience.

Some high-tech research and development technologies sound impressive in concept, but in actual use they have many small problems, making the user experience uncomfortable.

When the new car is equipped with this technology, it means that it will be compatible with third-party charging stations everywhere, ensuring a good charging experience!

Shouldn't all the owners who bought their Star Cars thank them?
"Wait... I have a question."

Yu Nian couldn't help but ask another question.

Actually, when he heard the middle part, he vaguely sensed that something was wrong.

"The experience of using public charging stations is indeed not very good when two new energy vehicles are charging at the same time. This is also due to cost and protocol compatibility issues."

We've solved this problem through technology, ensuring that our car owners can always enjoy full-power, high-current charging.

If another new energy vehicle joins in at this time and also charges at the same charging station.

Or, to put it another way, there was already a new energy vehicle charging at a charging station, and our car suddenly joined in.

What are the consequences of these two situations?

Yu Nian was really curious.

Today, their vehicles are equipped with automatic boost technology, giving them a significant lead in charging experience.

What about other competitors' new energy vehicles that don't use similar technology?

What will happen?

...

Sun Pengfei nodded:

"You're right, there's a limit to the simultaneous load capacity of commercial charging stations."

Therefore, we can only guarantee that our own vehicles will have the best charging experience.

Other new energy vehicles that do not have the relevant technology were tested.

The charging power... should decrease significantly.

However, in this situation, we just need to wait for our car to finish charging.

……

Even Sun Pengfei himself felt quite embarrassed saying such things.

But upon seeing Mr. Xu's expression, he immediately realized that his own understanding was still lacking.

Because Xu Yi's expression remained as calm and composed as ever, as if this were something that should be taken for granted!

After hearing this, the others...

I couldn't help but gasp!
hiss--

ruthless!!!

Yu Nian's jaw dropped: "Then...isn't this just stealing electricity?!"

He was completely dumbfounded!
This technology is just too overpowered!

What does it mean to say "We can only guarantee the best charging experience for our own vehicles"?

What do you mean by "Our competitors' cars will be fine once we've finished charging"...?

Sun Pengfei shook his head: "The word 'rob' is too vulgar."

"I would call it lagging behind. Our competitors' three-electric architecture and BMS use supply chain solutions, which are far less advanced and flexible than our self-developed solutions. It is only natural that the charging power is lower. This is not our fault. Are we going to cut off a leg of our own if our competitors are not fast enough?"

Everyone: "..."

What else can be said?
This alone is already incredible.

When competitors find their cars can't be charged, they'll probably be furious!

But the words came back again.

Their approach to StarCraft's R&D is also to serve the users!
Which user of a new energy vehicle doesn't want fast charging speed and efficiency?

Saving users charging time means saving money.

Hmm...we're on the side of justice!!

……

Yu Nian felt that he had been convinced.

"And what is that dual-gun charging technology?"

He couldn't help but ask out of curiosity.

do not know why.

Intuitively, he had a feeling that this technology was probably even more explosive than the previous one.

You can't.

Is this some kind of technology designed to harm competitors?
　The update time has been changed to 5 PM.

　　Some readers have also reported that the 2000-word chapters felt fragmented and the chapter cards were difficult to use; now they've combined them into 4000-word chapters.
　　
　
(End of this chapter)