Huang Liping: "Electric vehicles are running pretty well now, so why are they suddenly going to be hybrid vehicles?"
I always feel like I'm going back.
Du Xinwei: "Is it because too much money has been spent on battery research and development? Electric vehicles have never been able to solve the problem of battery energy density, and the economic benefits generated are far less than what he expected? For example, pure electric vehicles are very pitiful when running long distances. Ah, it will take two or three hours to recharge. Unless we solve the charging problem."
The energy density of fuel is much higher than that of lithium batteries and it is easy to transport and store.
For example, the volumetric energy density of gasoline is dozens of times that of lithium-ion batteries.
Han Weijun: "That's true. If it's a hybrid of gasoline and electricity, you won't have to worry about long distances."
Dong Qingjun said: "Actually, I asked Director Li whether this problem can be solved by replacing the battery. For example, the battery can be replaced directly in the charging station, and the replaced battery can be tested and charged to ensure the performance of the battery." He It’s not a technical issue, but an issue of industry unification. If we were the only electric car company in the market, this problem wouldn’t be a problem. But now there are countless companies on the market, some of which are imported. Everyone’s batteries are different, and their standards are very different. , it cannot be replaced uniformly.”
Just like the original bicycles, no matter what brand they were, you could just find a repair shop to change tires and perform various repairs. That was because they were all state-owned enterprises at that time, and the standards, sizes and styles were all the same.
Nowadays, there are many brands of bicycles. Although the sizes are similar, many accessories are no longer the same and cannot be used universally.
Cars are even more so.
If the country is unified and the regulations are too strict, it will limit technological innovation and development.
Han Weijun: "Let's divide it into two groups. One group will develop a dual-system gasoline-electric hybrid, and the other will develop a single system."
Dong Qingjun: "Okay, let me figure out the single system."
Just then Li Wenjun came in and said, "No, no, no. You and Director Han will work on the dual system. Let Xiao Du and Xiao Huang work on the single system. They are already mature technicians and can completely handle it on their own."
Du Xinwei and Huang Liping exchanged glances with excitement on their faces.
Li Wenjun sat down: "Time is tight this time. An automobile manufacturer in Neon has been researching hybrid vehicles since 1969 and will launch the first mass-produced hybrid vehicle this year. In order to prevent you from going off track." Let me give you a framework. First of all, do you know what types of hybrids there are?"
Dong Qingjun said; "Didn't you just talk about single system and dual system?"
Li Wenjun: "According to the driving method, it can be divided into two types. The first one is to add an electric energy driving system to an ordinary car, called a hybrid hybrid system. It is like two people riding a tandem bicycle. Two people can exert power at the same time, They can also contribute their own efforts. This is what Neon is going to produce now. This kind of battery is also very small and cannot run for long periods of time. It can only make up for the slow acceleration of fuel vehicles when starting. It is charged by recovering kinetic energy during braking. Or use the excess power of the engine while driving to drive the generator for charging, without the need for additional charging. There is no need to change the customer's inherent driving habits. When out of fuel, just refuel like a traditional model. It is more fuel-efficient than a fuel vehicle, has a smaller battery pack, and is lighter in weight. The overall vehicle The performance is not affected. This system is very complicated, battery replacement is troublesome, and there are many technical barriers. Neon has been researching and developing it for almost 30 years. We don’t want to spend time and money to compete with them head-on. We have to find another way."
Dong Qingjun: "So we will do the second one."
Li Wenjun: "Yes, the second type is called plug-in type. As the name suggests, it is plugged into a charging pile for charging. Plug-in type is divided into two types. The first type is called extended range type. It is also called series type, that is, I want Xiao Huang and It was developed by Xiao Du. This kind of hybrid car can only be driven by an electric motor. The fuel generator can only function when the power battery is dead, charging the power battery. The battery then drives the electric motor, and the electric motor drives the car. The fuel engine is just the battery pack. It is a way of charging. The battery pack can also be charged by an external power supply. This is cheaper and will be our mass-produced affordable product in the future, so we can’t be careless. If you have any phased results, be sure to show them to me. "
Du Xinwei and Huang Liping nodded solemnly at the same time: "Okay. I will definitely live up to the trust."
Han Weijun: "I'm a little confused about this. Since it's a series connection, it also burns fuel to generate electricity for the battery to drive the car. According to energy conversion, the conversion process is longer than the direct combustion of fuel to generate energy to drive the car. Logically speaking, it should waste more energy. Why? What about energy saving?”
Li Wenjun: "Yes, Director Han is right to consider this issue, but there is a problem that you didn't hear clearly. I am talking about the fuel generator, not the engine. The biggest advantage of this system is that the first fuel generator technology is mature. The energy conversion efficiency can reach 90%. The conversion efficiency of the fuel engine can only reach 40% at most. The electric motor of the tram can feed back energy, because it can directly use the amount of power supplied to change the speed, so there is no need to change the speed. box. And the gearbox is the place with the largest energy loss in the entire car besides the fuel engine."
Han Weijun nodded slightly: "By the way, you just said that the braking energy can also be recovered. The conversion rate is high, and the lost can be recovered, so the overall efficiency will naturally be high."
Li Wenjun: "The other plug-in type is called parallel type, which is like a parallel circuit. I asked Qingjun and Director Han to develop it. Both the engine and motor can drive the car, so there is pure electricity, pure oil, There are three driving modes: gasoline and electric drive. The structure and technology are simple, the power is good, and the maintenance is easy. Although it looks simple, it is actually more difficult, the price is high, and it is more stable. This will be our high-end product, and I will follow you throughout the process. Jin, if you have any difficulties, don’t hesitate to come to me directly.”
Dong Qingjun was rare and solemn, nodding: "Okay, I will try my best."
Li Wenjun said: "Just trying your best is not enough. You are too unstable. You have to give me a military order."
Dong Qingjun: "Okay, let's establish a military order. If we don't make a gasoline-electric hybrid vehicle that can actually operate this time, I won't do anything else. Otherwise, I will clean the kitchen for Sister Qiu for a month."
Li Wenjun shook his head: "I want you to clean the kitchen. If you keep running around, just go on a blind date for me until we are suitable for marriage."
Too cruel.
He's not afraid of anything else, he's just afraid of this!
For more than a year, Qin Hongling and Cen Qin seemed to be possessed by a demon, forcing him to go on a blind date every day.
It made him afraid to stay at home even on weekends. He applied for a single dormitory with Li Wenjun, but was rejected by Li Wenjun because he owned real estate and could not waste company resources.
