Automotive Black Technology Chapter 899: : The perfect transition plan

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When Xu Fufang and Wang Rui saw the drawings of the hybrid system, their first reaction was; "Isn't this the template for a train internal combustion engine?"

However, given that Li Fanyu has always seemed inexplicable, he can often be slapped in the face with unexpected skills. These two guys were still patient and read all the drawings.

When they saw the conversion electric field and electric power operation parts, they finally discovered something different.

The unconventional energy conversion rate is one thing, and what makes the two of them feel even more strange about this system is the power recovery system and the transmission system.

For conventional dual-engine hybrid vehicles, such as Toyota's dual-engine technology, the main power recovery mode is to convert the force generated by braking into electrical energy and rush it into the battery. But in this system, the power conversion method is different.

What is very puzzling to the two is that in addition to the power recovery of the braking system, there are also power recovery systems on the two transmission shafts. These three power systems are connected to the electric field output by the engine, and then rush into the battery through the electric field.

Such a loop method seems extremely unscientific.

Needless to say, the power recovery of the braking system is a relatively conventional method of obtaining hybrid power. But what is the use of the power recovery system on the bottom bracket?

Originally, the purpose of this system is to convert power into electricity as much as possible. Although I don't believe that the energy conversion rate of this system can reach nearly 100%, I suppose it is possible.

Then the two sets of power recovery systems on the transmission shaft are completely contrary to this technology similar to the internal combustion engine electric car.

Because the power recovery system itself will increase the loss of kinetic energy.

The transmission part is somewhat different from their understanding of hybrid vehicles.

Conventional hybrid dual-engine cars are equipped with a gearbox. Because as long as the internal combustion engine is the power output, there must be an effective transmission system.

Why?

Because the internal combustion engine cannot produce torque at low speeds. Just like a martial arts master, standing still and punching is powerless. Only by sprinting forward and punching forward can he use his full strength.

But at high speeds, the output torque of the internal combustion engine will be greatly reduced. It's still like a martial arts master who runs too fast and has no energy to punch.

To sum up, the operating revolution range of an internal combustion engine is very narrow, only about 1000-4000 revolutions per minute.

This will bring about two problems; the first is that the car cannot be started because the minimum operating speed is 1,000 rpm. The second is that it can only be at high speed but not at low speed, or it can only be at high speed but not at low speed.

This is why gearboxes and clutches exist. Therefore, on internal combustion engines, the gearbox is a rigid configuration. It is precisely because of this that the general engine is directly integrated with the gearbox to form a power system.

The motor of an electric vehicle has two characteristics; first, it can output high torque at low speeds or even at rest. Secondly, the operating speed range is particularly wide, from 0 rpm to 7,000 rpm.

Based on these two points, the motor can be played happily even without a gearbox.

Fundamentally speaking, Li Fanyu's so-called hybrid technology is an electric vehicle template with its own generator, so it does not need to change gears.

But paradoxically, this car also has a gearbox.

Seeing that the two of them were puzzled, Li Fanyu gave some pointers with a smile. Xu Fufang and Wang Yu finally understood the meaning of this gearbox; in addition to regulating the speed output of the motor, this thing is also an energy recovery system!

This is weird,

"Brother Fan, this set of things is a bit complicated. Just from the drawings, I really can't believe that it can surpass or even achieve the effect of saving emissions and improving efficiency of the existing dual-engine hybrid technology. Are you really Do you want to apply this thing directly to Type II buses? ”

Li Fanyu nodded, "Of course! Although the power generation device uses the kinetic energy provided by the internal combustion engine, it is definitely easier to do without direct electricity. It is also definitely not as environmentally friendly as a pure battery. But for charging base stations that are not fully constructed or require a long time For users who are traveling, this system can be regarded as a transitional solution.”

"But Brother Fan, have you ever thought about it. Even if this technology is feasible, is it too complicated? Just talk about the main components; battery pack plus cooling system, motor, replacement electric field, three A power recovery system, a gearbox with a built-in power recovery system, and an internal combustion engine for power generation are very costly! Unless your thing is really very fuel-efficient, the cost of such a large vehicle is Isn’t it a bit... tasteless? ”

This is a problem.

Li Fanyu thought for a while, and recalled the parameters of the space description when redeeming this set of hybrid technology, and then waved his hand: "Don't worry about that for now! Let's talk about it later!"

Faced with Li Fanyu's casual attitude, Wang Yu and Xu Fufang both rolled their eyes.

……

But when the first hybrid system for testing was born and tested, Xu Fufang and Wang Yu were stunned. According to preliminary simulation tests, this seemingly unremarkable pseudo-hybrid technology has almost astonishing performance in terms of fuel consumption!

Under the simulated conditions of a dead weight of three tons and a load of two tons, this system can actually run a thousand kilometers using 80 liters of gasoline.

If placed on an ordinary hybrid car, this kind of performance would not be shocking, it could be called quite satisfactory.

However, for a large bus like a bus, it is already unexpected.

After all, according to Li Fanyu, this is just a transitional plan. Faced with such a positioning, what other flaws does this hybrid technology have?

Engineers at the Ministry of Electric Power are excited.

Under the leadership of Xu Fufang and Wang Yu, they immediately started upgrading the Type II buses. The castrated version of the Type II electric bus, which was originally scheduled to have fewer battery packs and lower motor power, left a lot of layout space to accommodate the implantation of a hybrid system.

After determining the technical direction, Li Fanyu handed over all other matters to Xu Fufang and Wang Yu.

But he himself failed to become a hands-off shopkeeper.

After a period of preparation, the fashion brand "Xfan" under Zhengxin Group has been successfully registered and has been promoted throughout China.

In order to cooperate with this brand, which aims to enhance the awareness of Zhengxin brand and the recognition of high-end customers, Li Fanyu still has a lot of things to do.

But for Zhengxin, a car company, there are only a few ways to gain huge attention; Li Fanyu scandal/Li Fanyu commits suicide/Zhengxin technology breaks the existing pattern.

But in addition, there is another simplest and most crude one...

Over there...is a new car that's amazing!