Fast technology October 30 news, last night, Xiaomi SU7 Ultra mass production version has been put on sale, the price is 814900 yuan, and very hot, 10 minutes small order 3680 sets.
The prototype car became famous in the New North Speedway, becoming the fastest four-door car with a time of 6 minutes 46.
874 seconds, making a Chinese car brand top in this field for the first time.
However, there are countless painstaking efforts behind the simple figures.
After Xiaomi SU7 Ultra obtained the results of Newnorth certification, Hu Zhengnan, the general manager of Xiaomi Automobile, released a long summary.
What is revealed between the lines is not easy.
The following is the original text: although the press conference is over, my heart is extremely restless in the past 30 hours.
It is believed that New North is the mecca in the eyes of every car engineer, and his official lap speed or deity list will be more suitable.
Almost all the high-performance cars in the world are polished on this track.
Automotive engineers who are adjusted by acceleration, sound waves and tire screams, who do not want their products to be honed on this track, if they can be on the list of gods, it may be one of the proudest things in their career.
Even if you can drive your own product around New North in person, it may be one of the wish lists of all automotive engineers.
The automobile industry has been around for more than 130 years, and the New North track has a history of 1997.
It has carried the dreams of several generations, witnessed the whole process of the development of the internal combustion engine to today, and began to witness the pace of electrification.
The development of automotive technology can never be separated from the track and automobile sports.
Almost all the innovative requirements for speed, safety and efficiency first come from the track, and then popularize the mass production technology in the industry.
I believe that the technological change of electrification and intelligence must follow this law.
A lot of people are saying that trams can’t get off the track, but is this just the opportunity for the next technological breakthrough? Engineers always like to face problems, especially those that everyone finds difficult.
As the most difficult track in the world and perhaps the most unfriendly to electric cars, why can’t Niubei not become a grindstone with mature electric vehicle technology? When I had this idea, it was easy to set up a Flag for everyone, but when I really did it, I found one difficulty after another.
The Ultra mass production car project was established almost at the same time as the standard version project, but because the V8S motor is self-made in full stack, it takes more time for the product to mature, so the mass production time of Ultra is later.
Once upon a time, there was a great controversy over the use of two-gear deceleration and three-electric mechanism.
The final consensus is a higher speed motor + three-electric mechanism + self-developed torque vector algorithm.
At this time, the team only has a passion and confidence that they don’t know where to come from, and everything else is zero.
They don’t even know where to test such a strong powertrain or where to test it.
In retrospect, it was really a bit of a rough feeling of the team, and when the A prototype first pulled the maximum speed and power, the team began to feel it.
The rest of the day was constantly switching between hope and cold water, and even when the ideal curve was pulled out on the bench, the whole team still didn’t know what would happen if the performance monster was installed on the car.
No one has ever made a car with a speed of more than 300 kilometers per hour, nor do they know what will happen when the speed reaches 300 kilometers.
With awe of speed, the mind is full of images of cars taking off and rolling on the New North track.
A group of veteran engineers with an average experience of 20 years have really encountered challenges that they have never encountered in their career, and have lost their sense of ease that they used to be familiar with.
For more than two years, a group of people have either lost their hair or turned white, and many problems need to return to Newton’s laws and re-deduce the decomposition of the goal in principle in terms of kinematics, dynamics, engineering thermodynamics and aerodynamics.
Compare and learn from the video frame by frame, and do thousands of turns of simulation on the simulator.
In order to ensure the success of the mass production car, the team proposed the Prototype project, which aims to design a more stringent verification environment to verify the reliability and limit performance of the three power system, thermal management and control software in advance before the large-scale verification of the mass production car.
This leads to the Prototype project and a product definition that retains the production car’s power and thermal management systems and key torque vector control software, preserves the body structure, and fully validates the touchable performance boundaries of these core systems with more extreme aerodynamic design, lighter vehicle weight, and more extreme tire performance.
If we repeat the game today, I believe everyone can tell a lot of lessons.
after all, this may be the first time that the Chinese engineering team has made a performance car that starts from the concept for the first time.
It is difficult and bumpy all the way, and it is full of problems.
Even many of the initial concepts are wrong, take a long detour and then overthrow and start all over again.
But there are a lot of things that seem easy to outsiders, and only when you really do it and try it will you know where there is a real pit and how badly you can fall in each one.
Cognitive breakthroughs again and again, the final result is the real growth of the whole team, a deep understanding of the difference between a performance car and a civilian car, and how to build a performance car from scratch.
After overcoming one difficulty after another, the state of the vehicle is becoming more and more inclined to the goals we want to achieve, the team thinks that everything is ready now, and everyone is proudly waiting for the final blooming moment.
however, the whole team was badly beaten in the face by the weather in New North, and we were taught what it means to be “at the right time, in the right place, in the right place and with people”.
Only then did the team realize that in order to achieve good results in New York, it is not enough to rely on products that are hard enough.
Lap time is also similar to the operation of races.
Operational ability is equally important, and of course it takes a little bit of luck.
What happened after that, everyone should know that the ups and downs of a month, fortunately, in the one-hour window of the last day, made an effective lap time, which is for the past two years or so.
The efforts of thousands of people have given a satisfactory result.
Because we always believe that something good is about to happen.
Even behind this achievement, there are still a lot of thrilling.
During the survey, there were still large sections of roads in Adenau Forest and Fox Cave with tide (marked in the picture with stagnant water or continuous dampness), in order to get out of lap time safely.
There is a certain limit on the rate output.
, A photoelectric sensor facing the ground on the front lower lip (used to measure real-time ground speed) was blocked by rising dead leaves, causing the safety mechanism to be triggered.
After the power was interrupted for more than ten seconds, the friends watching the data in the background almost suffocated.
But all of this may be something we have to go through, just like waiting for almost a month.
, No matter what, we can stand here and put our products on this track.
We have touched our professional dreams and are already on the road to our dreams.
Only by doing it can we know how great the great gods in front of us are.
We are still far away from them.
We are just the beginning now.
This must be a ten-year contract, and our confidence is that we are still young and we can work harder.
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