Chapter 420 142-143: Shocking work! (4000 words)
"This is not just an ultra-high-end SUV. To be precise, this car is positioned as a medium-to-large hard-core off-road vehicle!" Gao Huaijun said with a smile.

Seeing this, the executives who were originally excited became a little disappointed.

Hard-core off-road is a niche product in the market.

Medium and large-sized hard-core off-road vehicles are even more of a niche among the niche.

In this market, the winner takes all.

Mercedes-Benz's G-Class basically occupies most of the market share.

Grab market share from Mercedes-Benz G-Class?

It will be extremely difficult to achieve the expected sales volume!
There is still an essential difference between hard-core off-road vehicles and high-end SUVs.

There are differences in the body structure between ordinary SUVs and off-road vehicles. General SUV models use a load-bearing body, while off-road vehicles generally use a non-load-bearing body. This is the biggest difference between SUVs and off-road vehicles, and it is also the easiest way to distinguish them.

In terms of overall structure, the structure of hard-core off-road vehicles is stronger and the cost is relatively higher.

As for the difference in suspension, the suspension of a car is also different between an SUV and an off-road vehicle.

SUV models generally have independent suspensions. The characteristic of SUVs equipped with independent suspensions is that each wheel is independent. When a problem occurs with one of the tires, the other tires are not affected. Off-road vehicles generally use front and rear integral bridges. This type of body suspension structure is relatively simple, can withstand greater torsional forces, and has better grip on some bumpy roads.

Finally, the comfort of the vehicles is different. In terms of comfort, off-road vehicles are not as good as SUVs. In order to have better off-road skills, the entire body structure of off-road vehicles is relatively strong, and the seats are also manufactured for greater safety, thus ignoring comfort.

Moreover, off-road vehicles themselves make a lot of noise and are not suitable for long-term driving.

SUVs are mostly used as a means of commuting to get off work in the city or as a vehicle for going out for fun. The focus is naturally on comfort. You will not feel tired even after driving for a long time. SUVs have large space, so there will be no feeling of oppression, and the driving experience is sufficient.

"If we're doing a hybrid hardcore off-road, our comfort level shouldn't be too bad, right?" Wang Fengying suddenly thought of the key point and asked.

"Mr. Wang is really smart. He found the key point right away! This is also the sector that I need you to focus on. Otherwise, how can we snatch the order from Big G?" Gao Huaijun smiled slightly and continued to add.

The executives off the field all gave Gao Huaijun a thumbs up in their hearts.

We have to grab all the orders from Big G directly.

That’s really possible!

If you can really grab even a small portion of the orders, you will definitely be the most powerful one in the world!
"How can an off-road vehicle achieve the same comfort as an SUV?"

"The most important thing is the suspension!"

As he spoke, Gao Huaijun clicked the mouse in his hand and went to the next page.

It was written on the PPT: The complete Yunnian P with intelligent hydraulic suspension!

Yunnian P?

The executives present couldn't help but exclaim.

Gao Huaijun actually wanted to use intelligent hydraulic suspension, a very difficult suspension system, in this car!

"This car has a relatively heavy body weight, estimated to be more than 3.5 tons. In heavy off-road driving, a greater lifting force is needed to lift the body and chassis. If air suspension is used, its lifting force is not enough. The hydraulic suspension has a lifting force of up to 5 tons and a large lifting stroke of 200mm, which is more suitable for large loads and large impacts. The lifting stroke of the air suspension is only 150mm."

As Gao Huaijun spoke, he adjusted the PPT to the core components of Yunnian P.

During this period, Gao Huaijun has been catching up on car-related knowledge and has copied the core structure of Yunnian P almost completely.

In this picture.

Non-load-bearing chassis frame with transverse and longitudinal beams, front multi-stage buffer accumulator, front shock absorber, Yunnian intelligent computing center, four-wheel linkage module, suspension control accumulator, fluid storage pot and suspension motor pump module, rear shock absorber, posture control module, multi-stage stiffness control module, one each at the front and rear, continuous damping control module, one each at the front and rear.

It can be seen that the core components of Yunnian P are much more than those of the G-Class which uses air suspension.

"Yun Ni P is not just a hydraulic suspension, it should also be a hydraulic suspension with adjustable multi-level stiffness. It can also be four-wheel linked, leveled for camping, and fall safely from a height of 1 meters. The ultra-large off-road tracking index RTI reaches 5+, which brings an ultra-high wading depth of 600mm+. You need to do this, this is the key point!!!"

Gao Huaijun pointed out seriously.

1000mm+ ultra-high wading depth?

Mr. Gao, what exactly do you want to do?
Do you want to make some big news?
We, the concubines, can’t do it!
All the executives present looked at Gao Huaijun with horror in their eyes.

"To surpass the Mercedes-Benz G-Class is not just a slogan. It means that this car must have performance that completely surpasses the Mercedes-Benz G-Class. So where exactly is this performance reflected?"

“I think it’s mainly reflected in two aspects.”

“One is that this car must be able to wade through water!”

Gao Huaijun said with certainty.

what? ! ! !

All the executives present looked at Gao Huaijun with horror on their faces.

Wading???

Mr. He Zegao, you are serious about the vehicle and vessel tax imposed by the government, right?

It’s not a waste to use both a car and a boat!

No, if this car is a hybrid, it does not need to pay vehicle and vessel tax!
Li Yinxin, who was standing by, was looking at Gao Huaijun with shock on her face.

She has been Hillhouse's secretary for some time and knows a lot about Hillhouse's technological innovations.

However, this and other innovative ideas for automobiles that are moving in the direction of military development are still very rare. Even in the Han Country, it is hard to see them!

Has Hillhouse’s innovation in cutting-edge science and technology reached this point?
"Yes, it is wading. In fact, this technology, like airbags, is an emergency escape capability, mainly to deal with frequent rainstorms and floods in the south and situations such as deep water distress in the wild."

"An ordinary passenger car has more than 3300 leaks and will sink to the bottom in about 3-5 minutes. It cannot control its direction while sinking. However, I hope that this car can ensure that there is no visible flowing water in the car for 30 minutes. After it floats like a boat, the four tires are equivalent to four propellers. The vehicle's posture and steering can be controlled through torque control alone, allowing it to drive normally in deep water."

"Since it is an emergency escape, it must be triggered passively. When the car is wading, just turn on the wading mode on the car computer. The car needs to be equipped with more than 30 high-precision sensors to monitor the wading depth, vehicle posture, wheel slip status, etc. at any time. If the floating conditions are met, the emergency floating will be automatically triggered. When the emergency floating is triggered, the water depth and vehicle posture will be displayed on the car computer, the engine will automatically shut down to prevent water from entering the air intake, the suspension will rise to the highest state, all windows will automatically close, and the sunroof will automatically open, providing the owner with an additional escape route, just in case."

"In the emergency floating state, just step on the accelerator lightly to move forward, and the speed only needs to reach 3km/h. Needless to say, the floating steering is a must. The four-wheel motors we developed at Gaolingming independently control each wheel. The wheel motors can redistribute the corresponding twist to each wheel based on the vehicle speed and throttle depth, and then the steering can be achieved like four propellers."

"The most important thing here is the four-wheel side motors, which independently control the packaging of each wheel. There must be no water leakage!"

"The vehicle is well sealed, key components are waterproofed, and there is even a sealed cavity design similar to that of a ship in the vehicle."

"And this section is also the difficulty in the research and development of this car."

Although Gao Huaijun was speaking eloquently at the conference table, the executives below all had the illusion that things were a bit confusing.

In their opinion, Gao Huaijun was not developing an off-road vehicle at all, but an amphibious armored vehicle!
When Gao Huaijun mentioned this function, they thought of several usage scenarios, all of which were related to war!

Are you sure this product is developed to surpass the G-Class?

Is this really the positioning?

Gao Huaijun saw that everyone was so shocked that they didn't know what to say, so he smiled and continued, "In fact, it's not difficult to float. What's more difficult is that this car needs to realize functions such as moving forward, backward, turning, and turning around on the spot while floating. It not only involves the design of the control system, but also the coordination ability of the four-wheel motors, and even the dynamics of the whole vehicle in the fluid have a brand-new design. For example, the wheel spokes have a force design similar to that of a propeller, etc. Director Egger, there should be no problem with what I just said, right?"

As he spoke, Gao Huaijun smiled and looked at Egg, who was drinking water nervously at the side.

Originally, he and Wang Fengying just wanted to make a lower-end A0-class ordinary car.

You are performing such difficult moves now, which makes him a little unsure and feels that it is difficult to do!
"I can only try my best!" Egg said with a wry smile after taking another sip of mineral water.

"This will be a groundbreaking work. How can we say such pessimistic words and say we will try our best to do it?"

"If you want to do something, do it well!"

Gao Huaijun doesn't care what you think and immediately suppresses what he is thinking.

Egg's team has been trained for such a long time and has fought so many tough battles.

It is precisely because of this that Gao Huaijun dared to bring out this product and let the Egg team develop it.

Looking at a product of the level of U8, it really takes more than an ordinary team of grass-roots people to complete the design and development.

"The second highlight of this car that I hope you can complete is its on-the-spot U-turn function. Specifically, this car can be used on high-adhesion urban roads such as asphalt roads and epoxy floors to achieve the so-called on-the-spot U-turn function."

This is another extremely difficult research and development project.

The R&D engineers on the field now feel numb.

However, I am uneducated, and I can tell the world with just one word.

Apart from "what the hell", they really have no other words to describe how they feel right now.

If this car is played like this, then from the perspective of technological content, it is a foregone conclusion that it will surpass the G-Class.

If the G-Class is on the floor, then the ceiling above the ceiling for this level of technology is even higher!
"This is a deepening of our 'Yi Sifang' technology platform."

The technical platform of "Yi Sifang" was actually structured at Hillhouse Capital and is constantly being optimized.

This technology platform is based on a hardware structure equipped with four wheel-side motors, each of which can independently drive a wheel. This is also the so-called distributed drive system.

Since the four motors are controlled independently, each motor can independently realize forward and reverse (clockwise and counterclockwise) rotation. Therefore, when the left and right wheels rotate in opposite directions, an effect of turning around on the spot similar to a tank can be achieved.

However, even the technical platform of "Yisifang" is constantly undergoing relevant optimization.

It is still extremely difficult to realize the function of turning around on the spot as mentioned by Gao Huaijun!

Because the function of turning on the spot is used on high-adhesion urban roads such as asphalt roads and epoxy floors.

This means that the core capability of Yisifang's four-motor drive technology must be able to control the power output of the four motors very precisely!
On low-adhesion or slippery roads, if the power of a wheel is too great or too small when turning, the wheel may slip and spin or be "dragged" to slide, which may not have a big impact. However, on high-adhesion roads, the wheels are difficult to slip, and the reducer may be damaged or even the motor may be burned out due to excessive torque.

So it is not difficult to use four motors for driving, but the difficulty lies in being able to control each motor very precisely according to the road adhesion and the driver's intention at any time.

It's like for each of us normal people with intact limbs, it's not difficult to control our hands or feet independently, but to coordinate our hands and feet at the same time to complete some special and difficult movements, such as some acrobatics, the differences in each person's body control and coordination abilities will be fully demonstrated, and only those who receive regular and long-term professional training can do it.

And this requires powerful empowerment of artificial intelligence-related algorithms and their real-time computing capabilities!

Through Gao Huaijun’s explanation, Hillhouse Vehicle’s R&D executives learned that this function requires cross-departmental collaboration between Hillhouse Chip and Hillhouse Artificial Intelligence, two core intellectual departments.

Only with their participation will Hillhouse have the qualifications and ability to realize this function.

At this point, Wang Fengying, Egger and others finally understood why Gao Huaijun had gone against all odds and decided to set up a chip and artificial intelligence team a few years ago.

As research and development becomes more and more in-depth, the performance of automobiles has far exceeded the mechanical field and is more related to intelligence.

However, technologies related to intelligence can only be completed through cross-departmental cooperation between the two major departments of chips and artificial intelligence!
The foresight of early talent creation has created a very deep moat.

The executives present were all stunned by Gao Huaijun's strategic vision!

This is really awesome!

(End of this chapter)

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