One Thousand Seven Hundred and Eighty-Six Is ​​Really Not as Simple as Copying

Opened a new book: The End of the World: My House Can Be Upgraded, Brothers Help Collect, Give Some Recommendations!

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For the R&D center located in Germany in the future, the task is very simple.

No need to do anything else, on the one hand, study various electric vehicle policies in Europe, and then apply them to future vehicles.

On the other hand, it is to study the chassis.

How to make the future car chassis more advanced is one of their main research and development directions.

Don't you think that the chassis is not simple?

The big deal is to buy Mercedes-Benz and BMW cars, and then we can just copy their chassis.

But actually, do you think we've never done this before?

From the earliest Huanghai Benz, to the later Lufeng Land Rover, and then to the later Baoshitai.

These car companies, that one did not copy Mercedes-Benz, BMW and Porsche, from top to bottom.

From the car's shape, appearance, to the chassis.

It can be said that except for the engine and transmission, everything else is the same as those luxury cars.

But actually!

Just run and you'll know.

People's chassis tuning really relies on technical skills, this is really true.

First of all, people will consider your body and car weight, and then let your car run and observe your driving posture.

For example, when starting off, the front of the car will lift at what speed, and when braking, what speed will the rear of the car lift.

Also, during driving, when cornering, no matter how fast the speed is, the body will tilt severely.

Then when passing the speed bump, what kind of feedback will the body have.

Integrate all the feedback together, and find an optimal balance between various data after exploration.

Then according to this balance point, set the moment bearing and deformation space of each support on the chassis.

Everyone must know that when the car is running, the chassis actually needs to continuously absorb the impact of the ground feedback, so the support parts of the chassis of the car body are constantly changing and adjusted to buffer the impact.

The key to chassis tuning is actually to set an optimal range of variation for these chassis supports.

In this way, when the cushioning of several supports changes, the feedback to the body is the one that makes the driver feel the most comfortable and confident.

Of course, the setting of the variation range of the width of each support is also related to the weight of the vehicle body, the power of the vehicle body, and the material of the support itself.

The tuning of high-end cars will naturally be more advanced because of the good materials.

Ordinary civilian cars, because of the general materials, can test their skills the most.

For example, many people do not understand, saying that German cars, especially Volkswagen.

You said that the weight is not much heavier than Japanese cars, and it is not even as good as Japanese cars in terms of fuel economy.

Moreover, the later maintenance is more expensive than Japanese cars, but why does he buy more expensive than Japanese cars!

Hey! This is expensive, and it is expensive to tune the chassis.

Anyone who has driven a German car or a Japanese car knows that even the lowest A-class car, even a Corolla, cannot compare with the Sagitar.

Where is the difference, it is on the chassis.

Although this level of car, there is no need to talk about a sense of luxury.

But in terms of confidence in giving feedback to the driver, that is different.

For example, on a highway of 100 kilometers, you can drive a German car very easily. You can hold the steering wheel with two fingers without feeling faint.

But if you drive a Japanese car, you have to hold the steering wheel firmly with both hands, and you have to keep your eyes on the road and stare closely.

That's the difference!

A good chassis can bring great confidence to the driver.

Of course, the best ones here are American cars.

As for Japanese cars, the reason why they can compete with German cars and American cars is that they are fuel-efficient and cheaper to maintain later.

In the past, our traditional car companies actually paid little attention to chassis tuning.

I thought that as long as I copied the chassis structure of those European and American luxury cars, it should be almost the same.

As everyone knows, the driving experience here is very different.

In the field of traditional car manufacturing, the gap between us and traditional world-class car companies is far more than just chassis tuning.

Chassis tuning can only say whether it can make the driver feel confident or feel a sense of luxury.

In terms of performance, it really depends on the matching of the engine and transmission.

In this regard, we are even further behind the world-renowned car companies.

Originally, we did not have an automatic transmission, so if we want to use an AT transmission, we can only buy it from Aisin or ZF.

Otherwise, we can only find Getrag or BorgWarner to buy technology, and ask them to help us develop dual-clutch.

Then there is matching with the engine.

Although in recent years, the technology of dual-clutch transmissions has also made great progress compared to before.

But the problem is that due to the inherent design flaws of the dual-clutch transmission, it is always unavoidable to have a sense of intrusion when creeping at low speeds.

To put it bluntly, it was driving and driving, and suddenly felt kicked by someone.

This kind of feeling is quite low-end, and the CVT transmission is not like this, but the CVT transmission has a fatal flaw, that is, it cannot withstand high torque.

In other words, rapid acceleration is not acceptable.

The only truly perfect transmission is the AT transmission.

And many of our traditional car companies, in order to enter the mid-to-high-end car market, will also buy AT transmissions from Aisin and ZF at high prices.

But even now, their cars are equipped with this kind of transmission.

But when driving, the driver still can't feel the smoothness of Japanese cars equipped with the same transmission, and German cars.

This is why?

And here, it involves the matching of the engine and transmission.

There is a lot of knowledge about your engine power output, transmission connection, and torque variation range.

When to upshift and when to downshift, this is a test of the engineer's training skills.

And this is the unique skill of German cars and Japanese cars, which has never been easily spread.

So even if you bought someone else's gearbox, even if the gearbox was used by BMW and Lexus.

But after your engine is adapted, you won't be able to drive other people's BMW power at any time, and it will never stop.

Not to mention the feeling of enjoying the silky smooth and silent acceleration of Lexus.

This is the technical gap in matching training.

After all, people have accumulated at least fifty years of data and experience on their own engines and transmissions.

It is precisely because of the big data like before that people can grasp every subtle change between the engine and transmission, and adjust their cooperation to the best.

On the other hand, on our side, many car companies, even in the road test before leaving the factory, are reluctant to do too much.

The idea of ​​collecting big data has only emerged in the last ten years.

Many of them are even entrusted to foreign companies for help. Just think about it, will those foreign companies give you 100% of these key data?

As for the training, it will be even more reserved.

After all, if they teach you all, whose business are they going to do in the future?

Therefore, many foreign companies really rely on their former technical bosses to make money lying down.

As for our domestic companies, companies such as BYD and Great Wall will honestly run millions of kilometers of road tests before the car goes on the market.

After traveling across the Yangtze River and the Yellow River, to the Qinghai-Tibet Plateau, to the forest and snowfields, and then to the tropical rainforest.

It is relying on such a head iron to collect data and technology. Of course, there is another car company, which is FAW that no one can think of...

As for other car companies, the most beautiful Chinese car, the Blue Whale Power, and the RW series of foreign origin are bullshit.

It's enough for everyone to know...

This is also a domestically-produced car, regardless of the gimmicks that are very fancy every year, but the main reason why few traditional car companies have made progress in terms of real technology.

In terms of power matching, our new Internet car-making force has inherent advantages.

Take the three car companies Future, Ideal, and Xiaopeng as examples.

Among them, Mirai and Xiaopeng are engaged in pure electric vehicles, and Ideal is currently at the stage of extended-range electric vehicles.

In any case, their main vehicles are driven by electric motors.

And if it is driven by a motor, it does not involve any power matching at all.

Because the difference between electric vehicles and fuel vehicles is here.

For fuel vehicles, you must have an engine and a transmission.

However, electric vehicles or extended-range electric vehicles do not require a transmission.

Just rely on the motor to output power.

In this way, there is no need to consider the problem of power matching at all.

This is also the main reason why they can catch up from behind and make the car feel high-end.

Because there is no power output matching, coupled with the faster and stronger power output of the motor, it is easy to give people the feeling that they are driving a power monster.

In this way, as long as you have done the chassis adjustment, the car's high-end sense of driving will come out naturally.

You said that in the first place in the future, a professional European engineer team was invited to help tune the chassis of the first batch of cars.

Later, a research and development center was established in Germany to tune the chassis.

On the ideal side, it is even more exaggerated. They set up their own chassis tuning team from the very beginning.

And this team is not just playing around, it's not just hiring a few white men to fill up the numbers.

Instead, it has just started to learn from the technology of the Mira team of the Great Yin Empire, and this team was split from the Saab brand back then.

The test level of BMW X5 is 73KM/H, that of Mercedes-Benz GLC is 71.8KM/H, and that of Porsche Macan is 68.5KM/H...