My Age of Investment

  Chapter 1047 Dual-motor four-wheel drive system

   "Daren, I am relieved to see that you are satisfied."

Chief designer Franz stood up with a smile on his face. He faced the Tesla executives standing around and explained: "Maybe many people don’t know that this ModelS is actually not my design. , I have a partner."

  Franz opened his palm and pointed to Xia Jingxing, “Dalun is my partner. He is responsible for proposing design ideas, and I lead the team in charge of drawing and cooperating with the vehicle engineering team to implement related designs.

  Previously, it was rumored in the industry that Darren was involved in the design of Renaissance FX1. I didn’t believe it at first. Most of the guys from Renaissance Mobile were trying to please the boss, or the media was deliberately creating a genius personality to increase the attention rate of the news. "

  The people around him smiled knowingly. Anyone who is familiar with Franz knows that this guy never opens the door.

  The design talent is very outstanding, that is, the nature is relatively loose, and the speech is relatively straightforward. Maybe this is the flaw of genius. The professional skill points are full, and the other skill values ​​are all negative.

  Xia Jingxing put her arms around her chest and listened with interest.

  He doesn't mind adding a genius aura to himself through Franz's mouth, because these things can be converted into real benefits.

  Previous life, old Joe and Musk’s "technical maniac", "minimalist", "design master" and other auras and names, many are deliberately created by the public relations department, and the founders endorse and endorse their products.

  This is new marketing. The domestic Lao Ma, Lei Jun, Boss Jia, Chen Ou and others are all its loyal fans, and they have really tasted the sweetness from this.

   Therefore, when the technology entrepreneurs are high-profile, they must not be low-key.

  This is somewhat different from the low-key short-selling of the global financial market that he pursues. After all, short-selling is not a good reputation most of the time. In the eyes of ordinary people, finance is often equated with derogatory words.

  Franz suddenly changed the conversation, "However, when I worked with Darren’s close partner once, all these prejudices and narrow-mindedness were rushed into the sewers by me.

  Well, I admit, it is the lack of knowledge that limits my imagination.

  If Dai Lun suddenly doesn’t want to be a boss one day, and wants to be a hardware designer, I have to remind colleagues in the industry: be careful of your job. "

  Tesla executives all listened attentively, and even the look they looked at Xia Jingxing changed.

  According to their understanding of Franz, this guy absolutely cannot shoot such a fresh and refined flattery. There is only one possibility, and that is the fact, there is no exaggerated fact.

  This is terrible!

  If you are not born to be an all-rounder, you can only learn from the day after tomorrow.

   But this learning ability is too strong? Cross-border and cross-industry arbitrarily.

  Think of the age of the boss again. I really don’t know where his upper limit of achievement will be in the future?

There is a kind of arrogance in the technology practitioners. Tesla has gathered countless arrogant soldiers. Many people have joined Tesla from other auto companies and technology companies, and they feel cool when they come to this place. The enterprise pursues and realizes greater ideals and ambitions.

   Therefore, for Xia Jingxing, the chairman and major shareholder, they only maintain superficial respect. If you really want to say how much you admire, it is only for the sake of the money.

  But at this moment, many people put away that kind of arrogance and contempt. Xia Jingxinglu's professional skills won their respect.

"The 17-inch central control screen was first proposed by Darren to install it. He said that he would move the Fuxing mobile phone to the car. At that time, I thought this guy was crazy and really made the car as a mobile phone. …"

  Under Franz’s vivid description, everyone got to know a Darren Xia who was different from their impressions.

  Many executives immediately cleared their doubts. No wonder Darren is more familiar with this car than they are. It turns out that they are the father and original creator of ModelS.

  CEO Straubel showed a slight smile on his face. He and Franz were the insiders of this matter.

  More than a year ago, he was going crazy too. He was driven crazy by Xia Jingxing’s car concept.

  Central control touch screen, vehicle OTA, centralized electronic and electrical architecture, the smaller the number, the better the electronic control unit ECU...

  The difficulty of realizing these ideas is hell-level. First of all, countless cutting-edge technologies need to be integrated. Second, compatibility issues need to be solved, and again, costs must be controlled.

  He gritted his teeth and took the task. In the process, he found that although there were many difficulties, he did not encounter any technical threshold that could not be crossed.

  This shows that the technical conditions for manufacturing ModelS are available, but no one has ever proposed to manufacture such a car.

   Therefore, he also admires Xia Jingxing, which shows that the boss is technically forward-looking and not a brainless task assignment.

  As a professional manager, he feels very lucky to meet a boss like Xia Jingxing. He has clear rewards and punishments, is keen on technological innovation, and has a good set of commercialization...

  Franz fiercely praised Xia Jingxing before joining the team, and there was a warm applause around him.

  Just as everyone was proud, an uncomfortable voice from the crowd suddenly sounded, "This car is still not perfect!"

  Everyone looked for their voices, and a middle-aged white man with half-white curly hair said with a heavy face: “First of all, a balance between the dual-motor four-wheel drive system and energy consumption and acceleration performance has not been found!

  The high-end version of ModelS we envisioned, namely the four-wheel drive version, is composed of two motors, a main motor and an auxiliary motor, which are respectively placed on the front and rear axles of the vehicle to drive the front and rear wheels of the vehicle.

  Traditional fuel vehicles are equipped with a four-wheel drive system, which will increase fuel consumption.

  The goal of ModelS is to solve this drawback. In other words, our four-wheel drive structure should achieve the effect of reducing energy consumption and increasing cruising range.

  This requires that the dual-motor structure must optimize the power output, and the two motors cooperate with each other to improve energy utilization efficiency.

  For example, if our electric car wants to have the acceleration performance of a cheetah, the maximum torque must be burst at the start, and the energy consumption will be very high at this time.

  At the same time, when the car reaches a higher speed, the torque will drop significantly, weakening the acceleration performance.

  The role of the auxiliary motor is reflected at this time, which can supplement a part of the torque, so that the acceleration of the vehicle in the second half of the vehicle also maintains a sufficient and powerful state.

  So, this plan is not only to reduce energy consumption, but also to make ModelS a fast horse.

  However, this requires that the auxiliary motor must have a relatively flat torque curve, and the torque peak value can be lower, but it is never allowed to cause drastic torque changes due to the increase of the car's speed.

  In the high-speed test of the prototype car, we found the defects exposed by the current motor design scheme.

   Let me talk about acceleration first. It takes 4.5 seconds to accelerate from 0 to 60 miles (0 to 97 kilometers), which is far behind Roadster's 3.7 seconds. "

  Many executives at the scene nodded, expressing their recognition of this defect.

  Straubel frowned, "Although the acceleration performance has weakened, our costs and pre-order prices have also been reduced."

  Even if the CEO spoke in person, the middle-aged white man with curly hair did not calm down, "But this is the four-wheel drive version of ModelS, and this is a new car we designed from beginning to end. It carries our bigger dreams.

  Think about it, if the market price is reduced, the acceleration performance and battery life will be better. How much impact will this have on consumers' minds? How big a sensation did it cause? "

  Franz is not too big to watch the excitement, and smiled: "If the lower-priced ModelS has better performance, I wonder if the Roadster owner will scold us and ask us to return the car or make up the difference?"

  　Thanks to the book friends for the leader of the pear blossoms, I will add 10 chapters, it’s cold, and let me add more slowly...

  (End of this chapter)