Let You Build A Fuel-Efficient Car, You Build A Super Electric Car?

Routinely speaking.

Passenger cars weighing more than two tons.

Effective braking can only be achieved through multi-piston disc brake calipers.

And heavy trucks for transportation.

The weight is more than tens of tons.

A full ten times the weight difference.

The acceleration G value and inertial force brought by it are ten times that of small cars.

so.

After continuous braking of heavy trucks, it is very easy to cause brake heat attenuation and cause brake failure.

Not only that.

Even on a very regular road section like a long downhill, in the eyes of heavy truck drivers, it can be called a "dead section"!

Heavy-duty transport vehicles need to brake frequently to overcome the acceleration of the vehicle body when going downhill continuously. Although the drum-type pneumatic brake has strong braking ability, the overall structure is a closed design.

The cooling effect is extremely poor.

Brake fade occurs more frequently.

then.

The hydraulic retarder came into being.

The working principle is that the compressed air enters the oil storage tank through the proportional valve, and the oil in the oil storage tank is pressed into the retarder through the oil circuit, and the retarder starts to work. The rotor drives the oil to rotate around the axis, and internally forms a resistance moment to the rotor to hinder the rotation of the rotor, thereby realizing the deceleration effect on the vehicle.

And this kind of hydraulic retarder was first used in trains, and then popularized to industrial heavy trucks.

At present, the top hydraulic retarder in foreign countries has a braking capacity of about 4000Nm, which can effectively brake light trucks ranging from 20 to 30 tons.

For heavy trucks with an overall mass of more than 50 tons, it can only play a certain role in slowing down.

The "high-speed electromagnetic hydraulic retarder" produced by the system has a braking capacity of up to 8000Nm, which is double the performance of the top hydraulic retarder abroad.

This means that even a vehicle with a mass of more than 50 tons can perform strong braking.

There is absolutely no downhill or emergency situations where the brakes cannot be stopped.

Just this technology.

Just maximum "three seven three" has put an end to the serious traffic accident that occurs because of brake heat attenuation.

"If this kind of device is installed on ordinary industrial trucks, I am afraid that there will not be so many fatal accidents caused by the failure of large and heavy trucks to stop.

Li Ming could only sigh.

Technology is constantly evolving.

Before the common hydraulic retarder was introduced into the country.

Ninety percent of veteran drivers can only rely on anticipation of dangerous road sections to avoid such dangers.

As for the "multi-axis module chassis assembly technology", it does not look as amazing as the "hydraulic retarder", but it is an indispensable technology for making pure electric heavy trucks.

Because the chassis of the fuel heavy truck is designed with the engine gearbox transmission shaft as the main body.

Not only that.

The cargo tonnage of the heavy truck itself is too heavy. If you want to ensure the stability and safety of its chassis, you need a tighter industrial structure. In addition to preventing the front and rear pull and thrust, it is also necessary to prevent the roll force caused by the left and right inertia when cornering.

Ordinary commercial-grade chassis will fall apart under such strong pressure.

Among many heavy-duty truck chassis, the "I" or "Y" traction structure is adopted, which can only bear the thrust in the front and rear directions, but cannot prevent the cornering roll.

Kunlun wants to build a pure electric heavy truck, and a high-strength chassis modular platform designed based on battery motors is an indispensable technology.

also.

It is also the last L2.5 heavy-duty truck advanced driving assistance.

Anyone who has driven a car is no stranger to cruise control and the more advanced ACC automatic follow-up cruise.

If you drive at high speed for a long distance, it is easy to drive fatigue.

Generally speaking, ordinary people can reach their destination within one or two hours of high-speed journey.

Professional transport truck drivers, at every turn, drive at high speed for more than ten hours, and drive with fatigue from high-intensity work.

It can be said that the ACC automatic follow-up and lane keeping system is the standard configuration of high-end heavy trucks at present.

After turning on the ACC, the driver only needs to pay attention to the road conditions, and take over the lane change and enter and exit the ramp when necessary.

The Pilot Driving Assistance System produced by the system can realize automatic off-ramp and automatic lane change overtaking, which means that the driver does not even need to change lanes and ramp control on the high-speed road.

Nearly 95% of the working conditions can be driven automatically.

The driver only needs to pay attention to emergencies such as road construction or obstacles on the highway.

It is equal to greatly reducing the possibility of driving intensity and fatigue driving.

Li Ming couldn't help saying:

"The system, this L2.5-level auxiliary system, since it can realize high-speed automatic driving without taking over, is it possible that a higher-level auxiliary driving algorithm can realize fully automatic driving on normal roads used on national highways?"

If this is the case, the driver only needs to watch the car drive.

even.

No need for a driver at all.

The system said: "The fully automatic driving assistance system requires an L3-level automatic driving algorithm, which requires tens of billions of funds to develop, and requires legal support, and large heavy trucks are limited by the model, and cannot cooperate with the intelligent system for emergency automatic avoidance, so they cannot be equipped with L3 level. Autopilot system……”

Li Ming was slightly taken aback.

It seems.

Even if a pure electric heavy truck is equipped with an L3 level algorithm, it cannot use automatic driving.

Even if the brakes of heavy trucks are equipped with a "hydraulic retarder", they cannot brake as quickly as civilian vehicles, and it is impossible to steer flexibly at any time. Equipped with 2.5-level auxiliary driving is already the limit.

unless--

Li Ming's heart moved, and he said: "Then if I invest tens of billions of funds in algorithm research and development, and get a complete L3 driving assistance algorithm, is it safe to invest in the current commercial vehicles?"

When I heard that the system can develop "L3-level assisted driving algorithm".

Li Ming immediately became interested.

This is the legendary "unmanned driving technology"!!

If it is mass-produced and installed on Kunlun's models.

Not only does it have no rivals in the automotive industry, it can even change the global transportation pattern!!

Even if the current tens of billions of funds are invested in it, it will be earned in blood.

At present, the "assisted driving system" equipped on the car can be roughly divided into several levels.

L1 - assisted driving

It is mainly to assist and remind the driver, such as lane departure warning, forward collision warning, etc., functions.

That is to say, only reminding and driving to avoid danger can only be carried out, and the driver is still required to step on the accelerator and brake the steering wheel.

L2 - semi-autonomous driving

On the basis of L1, the added control functions can realize constant speed cruise, ACC adaptive follow-up cruise, lane keeping, etc., which can liberate the driver's feet and hands to a certain extent, but the driver still needs to intervene in emergencies , and in the absence of lane lines, L2 semi-automatic driving will fail.

L3 - highly automated driving

In the normal driving environment, the whole process is controlled through automatic driving. Only when emergencies rarely occur and problems that the system cannot cope with are found, the driver needs to deal with them

At this point, "it can be called "unmanned driving technology"

generally spread.

At that time, all kinds of taxis, buses, and even private cars will not need drivers to drive.

can imagine.

When you go out and get in the car, you only need to squint your eyes to sleep or play with your mobile phone, and the car will automatically drive to the destination after a while.

Just by making profits through the algorithm of authorized assisted driving, you can browse the trillion-dollar market!!

The system responded: "Of course it is possible, but to achieve L3 automatic assisted driving, in addition to the development of assisted driving algorithms, L3 assisted driving hardware is also required..."

"L3-level assisted driving algorithm currently requires 5000TOPS computing power to achieve perfect operation..."

"It also needs to be equipped with an ultra-long-wave laser radar, a full-vehicle 10-megapixel camera, and a high-precision millimeter-wave radar..."

Comparing the algorithm to the brain of autonomous driving, hardware is equivalent to the body, hands and feet of autonomous driving.

The more complex and intelligent the algorithm is.

A higher chip computing power is required to realize it.

but.

When Li Ming saw this 5000tops computing power.

Immediate scalp tingling.

"Damn it, are you serious about the system? Do you know how much the assisted driving chips used in current cars are worth?"

At present, the assisted driving chips of most mainstream cars only have a computing power of about 2.5tops-10tops.

The Kunlun models have higher specifications and can reach 30tops computing power.

certainly.

There are also some cars that use assisted driving and intelligence as selling points, and they will be equipped with chips with hundreds of computing power.

But this is too far from the 5000tops computing power required by the system.

The current computing power of the most advanced chips does not reach 5,000.

"System, if I develop a 5000tops chip alone, how much research and development funds will I need?"

Li Ming asked again.

The system truthfully said: "To develop a 5000tops computing power chip, in addition to the process design, a 3nm lithography machine is also required. It will cost 50 billion to develop the supporting technology of the 3nm specification lithography machine..."

88: "..."

$

It seems that until the end of the development of the automobile industry, the mountain of chips still cannot be avoided.

If Kunlun has hundreds of billions of funds now.

Li Ming will consider investing in it.

but.

Ten billion dollars is still too little.

There is no chip for R&D algorithms.

There is no lithography machine for developing chips.

19...

Or develop a pure electric heavy truck.

These current technologies are enough to create a heavy truck that surpasses the world's top level.

"System, is there any way to improve the battery life of pure electric heavy trucks?"

Li Ming said.

According to his estimation, if it is equipped with a three Baidu battery pack.

The actual battery life of pure electric heavy trucks can reach about 400 kilometers to 500 kilometers.

This battery life is basically enough for cross-city.

But compared to the high-speed long-distance transportation of fuel heavy trucks, it seems a little short.

To know.

Their Kunlun tram.

But it's all about battery life.

"Blue Bird" is the basic model, and its actual battery life can reach 500 kilometers.

As the flagship model, "Qinglong" has a battery life of up to 800 kilometers.

The battery life of "Candle Dragon", thanks to its ultra-light wind resistance and weight, can even reach more than 1,100 kilometers.

But there is no way...

Because an ordinary car weighs only two tons, while a heavy truck can reach fifty tons with a full load, the wind resistance and weight are too exaggerated.

And with the space of the heavy truck chassis, stacking a battery pack of about 300 to 4000 degrees is the limit.

Because the volume of the battery pack itself is not small, it is impossible to superimpose it to five hundred degrees.

The system replied:

"Improving battery life can start with increasing energy density or reducing energy consumption. At present, a 'high-purity graphene battery' can be developed, which is three times higher in energy density than ternary lithium batteries in the same volume, and the charging speed is increased by five times, and the heat dissipation efficiency is increased by thirty times. , the stability of the chemical properties is increased by ten times..."

Li Ming couldn't help but be moved: "The graphene battery... is so strong?"

In the previous scientific journals, it was shown that graphene is a very ideal electrode material, and it has an unimaginable electrical conductivity.

but.

For a long time, graphene has not been able to achieve mass production, and the cost of making it is extremely high.

Although there are several "graphene batteries" on the market, they are just ordinary batteries with a very small proportion of graphene added, and the discharge efficiency and energy density have not improved much at all.

It is a financing product that sells dog meat under the guise of sheep.

To really achieve a qualitative change, it is obvious that only "high-purity graphene batteries" can perfectly surpass the current lithium battery pack technology.

"System, how much does it cost to develop graphene batteries?"

Li Ming asked.

System: "'High-purity graphene battery technology' research and development expenditure is 100 million yuan, while 'graphene extraction and purification mass production technology' requires 50 billion research and development expenditures!!"

Li Ming couldn't help frowning when he saw it.

"System, your research and development of graphene is too expensive, is it almost catching up with the 3hm lithography machine?"

did not think of.

In addition to graphene battery technology, mass production and purification of graphene technology is also required.

But think about it too.

Just like Kunlun used to manufacture ternary lithium battery packs, the rare earths and chemical materials needed can be directly purchased in other industrial chains.

So you only need to have the manufacturing technology of the battery pack.

Graphene, on the other hand, is not directly available.

This means that if Kunlun wants to manufacture graphene batteries, it needs to master the high-purification and mass production technology of graphene.

This is the problem in today's world.

The system quickly said: "Host, graphene is an advanced chemical material. Its use is not only to manufacture high-energy battery packs, but also to subvert and upgrade high-end products in other industries. It can also be used to make supercomputer chips, solar cells, etc. product, its economic value is no less than that of a lithography machine...so the system is fairly priced."

The system evaluates the value of graphene.

Another piece of technology that Li Ming can't afford for now.

"L3-level autonomous driving algorithm", "3nm lithography machine", "high-purity graphene battery"

Every technology enables Kunlun to dominate the world in related fields.

but.

Now only tens of billions of funds are not enough.

Li Ming can only temporarily include it in the list of must-have technology trees.

If the company goes public and accepts financing, with Kunlun's current market value, it can easily raise hundreds of billions of dollars.

But he had no such intention.

As long as the monthly revenue of 1.5 is increased to more than 10 billion, the future R&D technology tree can be slowed down.

then.

Li Ming said:

"System, take a look at the research and development plan to reduce energy consumption."

Since there is no way to develop graphene batteries for the time being, we can only start with reducing energy consumption.

The system says:

"Supermagnetic conductance energy-efficient motor, using superconductor materials to greatly reduce internal resistance, increasing the cross-sectional area of ​​the stator slot design, increasing the energy efficiency ratio of the rotor to the maximum, with a built-in control chip, so that the motor always maintains the best energy efficiency curve, compared with permanent magnet motors Energy consumption is reduced by 50%, torque performance and maximum speed are weakened by 30%, and it is characterized by its huge size, which cannot be loaded into the chassis of a small car.

The energy consumption is reduced by 50%, and the performance and maximum speed are only weakened by 30%.

Li Ming thought about it.

The permanent magnet motor manufactured by Kunlun is an ultra-high-performance motor, and its speed and torque are 50% higher than those of industrial motors on the market.

so.

Even a 30% reduction in torque and speed is enough to provide enough power.

What it brings is the strongest energy efficiency ratio and the best work efficiency curve.

As a result, energy consumption is reduced by 50%.

It is enough to double the battery life of pure electric heavy trucks to more than 800 kilometers!!

The only pity is that this kind of super magnetic conductance energy-efficient motor, because of the design of increasing the cross-sectional area of ​​the internal slot, makes it too bulky, so it can only be mounted on heavy trucks for the time being.

"Notify the R&D department, I want to hold a small meeting.

Ended communication with the system.

Li Ming immediately decided to start the research and development project of pure electric heavy trucks.

soon.

The main members of the R&D department received the notification.

The mood has become subtle.

They couldn't help but have a premonition in their hearts...

The boss may be making trouble again!!

(This chapter is a bit dry, and it took a lot of time to verify the information, and I coughed up blood...).