Civilian cars rarely need all-wheel drive, just rear-wheel drive. After all, the more driving wheels, the more fuel it will cost! Therefore, ordinary trucks have almost the same power, with the engine longitudinally placed and the rear
Following the gearbox, the transmission shaft is behind the gearbox, which can transmit power to the rear wheels, and there is no need to transmit power forward at all.
If you want to integrate the transferor directly into the rear of the gearbox as a normal all-drive vehicle and transfer the power to the front, it will not be easy to convert to a civilian vehicle.
Building civilian vehicles based on the standards of military vehicles is also a trend of development. It is still very popular in many professional fields. Besides, this set of power chains is definitely very excellent. If it cannot be used for civilian use, it is only
It would be a pity for military use.
Under this idea, they decided to develop this special all-wheel drive solution, connecting the transmission shaft to the rear axle and transmitting the power to the front. Of course, this also has mechanical benefits, allowing the rear wheel to be
First of all, gain power. For trucks, the rear wheels mainly bear the weight of the vehicle and transmit power here is also very suitable.
Looking at this structural diagram, Qin Zhenhua was also very eye-opening. Qin Zhenhua didn’t have much knowledge in terms of Chinese and card games. This is the first time I have seen this, and it is full of freshness everywhere.
"After repeated research, with the help of comrades from the first machine factory, we have solved the technical problems of the gantry axle. Therefore, you can see that although the overall height of our car is not very high,
The gap between the ground is very large. Director Qin, you asked us this challenge at the beginning, but now we have finally completed it." Sun Mingyuan continued.
There are many technologies among them. In addition to the problem of this power chain, there is also the problem of axle. If FAW wants to pick up the off-road military vehicle cake again, it must be better than the technology of the Second Automobile Factory.
It's much better to be much taller. These technologies are all high-end. At the beginning, in order to be able to study the technology of this gantry axle, they even planned to get a car to survey and map the imitation. Later, the price was too high, so they had to do it.
A model.
The axle has been installed with a special test car and tested. The effect is still good. Just wait for the formal prototype car to be built and you can go on the road to test. When you give it to the army, the army will definitely be lit.
Planting a car, but it was absolutely not available before, and the army will definitely be eye-opening.
After hearing Sun Mingyuan say this, Qin Zhenhua nodded with satisfaction. Only companies that can be brave enough to innovate and develop new technologies can make progress. Now, after hearing about this, Qin Zhenhua is very proud and feels that there should be no bidding for this car.
Too big problem.
Qin Zhenhua continued to turn back a page. This page was a principle block diagram. Looking at the things above, Qin Zhenhua felt that his brain was not enough.
"What's going on with this intelligent electro-hydraulic coupling power steering system?" Qin Zhenhua asked Sun Mingyuan.
Hearing his words, Sun Mingyuan showed a hint of pride on his face: "Director Qin, this system was developed by us ourselves. Its biggest feature is that it matches different steering assistance based on different road conditions.
You should know that hydraulic assist is commonly used in trucks now. This power assist system is heavier at low speeds, and lighter at high speeds. This is determined by the working principle of hydraulic assist.
Cannot be changed.”
In the past, the steering wheel had no power system. For example, Lao Jiefang relied on the driver's two arms to swing the steering wheel, so it was impossible to turn the direction on the spot because the steering wheel could not be driven at all. Later, there was
As aided, the engine drives a hydraulic pump, which makes the direction easier to drive, but it is still somewhat insufficient. At low speed, the direction assist needs to be larger, and at high speed, the direction assist needs to be smaller.
The higher the speed, the more stable the steering wheel needs. The hydraulic assist is just the opposite.
"Now, electronic power has begun to be used in cars. Electronic power is used to help drivers turn, so that the faster the speed and the smaller the power. However, the energy of electronic power is limited and cannot be used by trucks.
Therefore, in order to integrate the advantages of these power-assisted systems, we have developed this electro-hydraulic coupled power-assisted steering system, where the motor and hydraulic steering assist work together to achieve user needs." Sun Mingyuan said.
"What does this mean with the word intelligence in front of it?" Qin Zhenhua asked.
"Intelligence, of course, this system is intelligent." Sun Mingyuan said: "It can automatically identify the road conditions to provide the most suitable steering assistance. In fact, in addition to the steering system, we also have advanced front and rear shock absorption.
The device and the electronically controlled adjustable suspension system can automatically identify road flatness, load perception, height adjustment and shock-absorbing and damping adjustment functions. This makes the off-road function even more powerful."
After hearing Sun Mingyuan say this, Qin Zhenhua opened his eyes wide. They were so amazing! He just proposed that a transmission system adopts automatic transmission to reduce the driver's operation complexity, but they did a lot, even this kind of thing.
Advanced and high-end electronic control systems are also used.
The steering system uses intelligent control, which can determine to provide different assistance to the driver by identifying different road conditions. At the same time, there is also a shock absorption system. In the past, the shock absorption system of the car was determined, so,
When the truck is empty, the shock absorption is hard. After passing a speed bump, you can push people up. When it is heavy load, the shock absorption of the car will be flattened and it looks like it will break at any time.
And now? This third-generation military card can be adjusted according to different road surfaces and different loads. This will make the driver more comfortable, without bumps when it is no load, and can also be provided when it is heavy load.
Strong support is really wonderful.
"You have done a great job. In this way, our advanced medium-sized truck will become an intelligent truck. Maybe, after the arrival, we can still drive intelligently, and there is no need for a driver anymore
.” Qin Zhenhua said, his words were actually joking.
"Yes, this is indeed a development trend." Sun Mingyuan said.