1255 Looking for embarrassment for Director Liu from automotive technology?
"There is nothing to be surprised about this. Because the turbocharged engine is something our Ninth Academy has been studying for many years, and when it first came out, it got samples from abroad. This was originally planned to be used in the engine technology of helicopters. And naturally aspirated, this engine is not very researched because of insufficient power, and even if there is research, it has a larger displacement. In the past, China has always focused on military research. Even now, many high-tech research is also for military use. Which technology in our military system is for civilian use?"
The others looked extremely embarrassed and didn't know how to answer Zheng Hao's words.
Liu Yijiu's answer made Zheng Hao understand a little.
The technology of the Ninth Academy, even the many technologies used by civilian products units, were used in military use from the beginning. In order to recover investment and obtain more technical research and development funds, some non-core technology projects were transferred to civilians.
The starting point of research is for military use, not civilian use.
When all the advanced technologies in the world first appeared, they were all for military purposes. Only when military technology became more advanced can some eliminated technologies be turned into the civilian product market.
Just like the microcomputer technology of the Ninth Hospital, it has been researched for many years, and it basically started at the same time as the United States, but so far, it has not been transferred to the civilian market.
"Then in this way, we can only produce mid-to-high-end cars! The market for low-end cars is the largest. After all, in this world, not everyone who can afford a car does not care about the cost issue. Most of the cars produced in the world that produce tens of millions of cars every year are mid-to-low-end cars, and the proportion of high-end cars is not large!" Zheng Hao said with some concern.
Liu Yijiu's layout in the automobile industry is absolutely impossible for him to be just a domestic market.
The domestic market cannot consume much car every year, and it is mainly concentrated in several experimental special zones of reform and opening up.
There, because domestic automobiles basically do not have much production, joint ventures entering China have not yet started to be put on the market, and basically all of them are imported.
Not only does the import of cars have high tariffs, but also because they require a lot of foreign exchange, the rich people need cars that symbolize their status and can only buy those that come in through abnormal channels from the black market.
Zheng Hao knows this kind of thing very clearly, because such a business is controlled by the military.
"At present, this is all that's all. Let's not rush to produce low-end cars for the time being. How do you plan to equip this type of car with technical performance?" Liu Yijiu pointed to the car that looked a bit like the Audi A4 and asked the staff at Jialing Factory.
Jialing Factory does not have much research on power technology, and there is even no research on this aspect.
Power technology is just looking for the power system assistance of the Ninth Hospital.
"In terms of power system configuration, it is mainly equipped with turbocharged engines. There are a total of these three engines. In order to gain greater market recognition and grading in the same model, it is divided into three levels of configurations according to the concept you provide. As for the transmission system, due to the technical research of four-wheel drive, there are only front-wheel drive and rear-wheel drive that can be selected. However, in order to achieve the production cost of the vehicle, reduce the mass, increase the ground adhesion of the drive wheels, and facilitate installation and maintenance, we chose front-wheel drive..."
"Actually, I think our cars should use rear-wheel drive transmission system. Although the rear-wheel drive looks a bit complex structure and the cost is slightly higher than the front-wheel drive, the rear-wheel drive has better handling, and can also disperse the load on the front wheels and reduce maintenance costs... Although front-wheel drive is now used internationally, I personally think rear-wheel drive is more suitable..." Guo Hong is not the chief designer of the automobile, but he is the chief engineer of Jialing Factory.
There is also some say in this regard.
Liu Yijiu frowned while listening to the two people's arguments.
The world's debate about the two transmission systems of front-wheel drive and rear-wheel drive has lasted for decades. Before the 1970s, all cars were rear-wheel drive, and after the 1970s, most cars began to use front-wheel drive. After the 1990s, some automobile manufacturers once again used rear-wheel drive.
After entering the first decade of the 21st century, customers can basically choose every model of cars in the world. For the same model and the same configuration, you can choose front-wheel drive, rear-wheel drive, and even four-wheel drive!
Obviously, Jialing Factory now does not have the ability to provide customers with such choices.
What Liu Yijiu didn’t expect was that these guys had all created samples, and they must have done a lot of performance testing. How come they still haven’t reached a unified opinion on this?
"The world's mainstream adopts front-wheel drive. This can reduce costs, make it more convenient to manufacture, and at the same time make the space inside the car larger!"
"Can you two stop arguing? Director Liu is an expert in this regard, so let's listen to his opinions." Seeing that Guo Hong and Yin Chongqiang had arguing about taking the front drive or the rear drive, Tan Qingfeng, on the one hand, flattered Liu Yijiu, on the other hand, also raised a problem.
Liu Yijiu requires leaders of all units to understand the various techniques of their subordinate units, not to be proficient, but only to understand.
Where is him?
If he doesn’t know technology himself, why should he ask the following leaders to understand technology?
No one who can make a fortune is a leader who is not a good deal.
Liu Yijiu glanced at Tan Qingfeng casually. This guy's plan to get something from one stone is very good, whether he can answer it or not.
Unfortunately, he met Director Liu.
"It is not unreasonable that front-wheel drive can occupy the mainstream of the car industry. First of all, it is to reduce costs. During the manufacturing and installation process, there is no need to pass through the drive shaft under the cockpit, and there is no need to manufacture a rear axle shell. The transmission and differential are assembled in one shell, so that there are fewer parts required. At the same time, designers can more conveniently install brake systems, fuel supply systems and exhaust systems at the bottom of the car... The reduction of parts can effectively reduce the weight of the car, thereby improving acceleration, braking and fuel economy. At the same time, because the front-wheel drive bears the weight of the engine and the drive axle, this can effectively increase the adhesion of the tires on the ground..." Liu Yijiu's statement is more detailed than Yin Chongqiang, who is professionally researched.
As soon as he said these words, Tan Qingfeng and others who didn't know him opened their mouths so wide that they could stuff an egg.
They really didn't expect that Liu Yijiu had such a detailed understanding of this aspect.
"As for rear-wheel drive, some of the mechanical components move from the front to the rear of the car, and the balance and operability of the car will be greatly improved. When the rear-wheel drive car accelerates, the traction force will not be emitted from the front wheels, and the handling performance will be better when turning. This is the method used by all high-end cars and supercars in the world... Since the front-wheel drive system manufactures the transmission and differentials together, there is a problem with the rear-wheel drive transmission. You only need to replace the transmission, and the maintenance cost is lower... As for the problem of small indoor space, as long as the independent rear suspension system is used in the design, the car body is closer to the differential and the transmission shaft, it can solve this problem... And the traction force is small, and it can be equipped with a body stability electronic system and a traction control system. Both technologies are used on tanks, so that the rear-wheel drive achieves the effect of front-wheel drive..."
Even Yin Chongqiang has to admire Liu Yijiu's introduction.
However, Liu Yijiu introduced the advantages and disadvantages of these two braking methods so clearly, and proposed solutions to the disadvantages, but he couldn't figure out whether he was optimistic about front-wheel drive or rear-wheel drive.
For any product, the opinions of the top leader are very important.
Especially when the status of this leader is unshakable.
Unlike foreign countries, domestic technical R&D personnel will stick to their own ideas when they have ideas about their designs and try their best to convince opponents who have different opinions from them. When there are endless debates in China, the solution is to obey the leaders' opinions, and the leader's decision is what they decide.
Tan Qingfeng really dared not make decisions about this matter. Now that Liu Yijiu is here, he personally proposed and arranged the layout of the automobile industry, so naturally he will solve it.
Faced with such ambiguous answer, everyone didn't know which Liu Yijiu leaned towards.
Tan Qingfeng first flattered Liu Yijiu's understanding of cars so well, "Director Liu is really amazing. There are basically not many people in China who can compare with the professionalism of cars." After the flattery was completed, he asked Liu Yijiu, "Director Liu, are you optimistic about front-wheel drive or rear-wheel drive for these two transmission methods?"
This has to be decided by Liu Yijiu. Even if any problems occur in the future, he will not take any responsibility.
Liu Yijiu glanced at Tan Qingfeng meaningfully again and said to him with a smile, "The two types of braking methods have their own advantages and disadvantages, both are good!"
"Then should we choose front-drive or rear-drive?" Tan Qingfeng cursed in his heart, but he pretended to be puzzled.
If Liu Yijiu doesn’t give up, Tan Qingfeng will definitely not give up.
This is an important issue that concerns the future.
Chapter completed!