1 first, explain what are the three major parts of a car. In fact, the three most critical parts of a car are the engine, transmission and chassis.
2. What are the levels of the three domestic cars? Let's talk about the engine, transmission and chassis respectively.
Let's talk about the engine, which can be said to be the heart of the car. Whether the heart is good or not determines the dynamic performance of the car. Although China's automobile industry started late, the world's automobile internal combustion engine technology is very mature, in other words, it can be said that it has reached the bottleneck of technological development. Our car engine technology, especially our own brands, is catching up quickly and basically keeping pace with the world. Ordinary family cars even have advantages in parameters. In terms of performance, there is no gap with foreign advanced level. Especially in today's rapid development of electric vehicles, China's power battery technology has reached the forefront of the world.
4. Next, the transmission is divided into manual transmission and automatic transmission. In the field of manual transmission, because the technology is relatively simple, domestic automobile factories can basically produce it, and the manual transmission of some head enterprises is no different from that of foreign countries. The gap with foreign countries is mainly reflected in the field of automatic transmission. Due to technical difficulties, the world automatic transmission production is mainly concentrated in a few manufacturers such as Japan and Germany, such as Aisin of Japan, ZF of Germany, Gertrak and so on. Automatic transmission is divided into two technical directions, one is AT and the other is DCT, which is also called power shift. AT technology is complex, difficult and mature, and many key technology patents are controlled by foreign countries. China's development in AT field is slow, mainly monopolized by Credit Suisse and ZF. There are independent transmission manufacturers in China, but it is really difficult. DCT technology is the main direction of domestic automobile factories, which has developed rapidly in recent years and has reached the level of competition with foreign manufacturers. Honeycomb Power Company, a subsidiary of Great Wall Motor, developed 9DCT and began to lead the development of DCT. So in the field of automatic transmission, China has caught up.
5. Finally, the chassis, the quality of the chassis directly determines the driving texture of the car. A company's automobile chassis is a long-term product, which directly determines the platform structure of the car. Once confirmed, it may be a big production cycle. From a technical point of view, there is no secret about chassis technology, and the most advanced is air suspension. But the same chassis has different driving quality, because the production of chassis is a process of gradually accumulating experience, which is a test of a manufacturer's cultivation and historical accumulation. What domestic automobile factories lack now is the accumulation of this historical experience, but with the efforts of various manufacturers to introduce many foreign experts, this aspect has also made great progress.
6. From the overall quality of the three parts, there is no difference between domestic production and joint venture, and there are even advantages in some fields. However, in the core parts field of the three major parts, our domestic manufacturers still need to purchase foreign parts, which is the biggest gap between us and foreign countries. From the consumer's point of view, the quality of the three major parts of domestic automobile factories is still guaranteed.
This question is too Out. Today, the latest engines of Chery's third generation 1.6T, Changan 1.4T, 2.0T and the latest powertrain just developed by Great Wall (still on the market) have surpassed most joint venture vehicle engines in technology. Doesn't mean it can't be used now. The gearbox is only at, and the dual clutch of Wan Liyang CvT and Great Wall is similar to that of joint venture. Chery chassis is also independently developed. We should have confidence in ourselves. High-tech Huawei can do foreign investment, and we can do better in traditional cars.
At present, the starting point of domestic car-making level really lags behind other countries for many years. It is a bit difficult to catch up with others in such a short time, but the direction of domestic cars is very good, and there is no joint venture car configuration at all under the condition of low price. But even so, there are still some shortcomings in the three major components such as the engine. There is no doubt that a global automobile group will be born in our country. If you don't believe me, look back. Just ten years ago, especially when private car brands were just starting, the cars made were simply afraid to look. It is almost 108,000 miles away from the joint venture brand. But what about now? There is basically no gap between us and his own brand, especially the head. In this case, in the near future, the quality of self-owned brand cars will far exceed that of joint venture brands. For example, Geely Link has surpassed the joint venture brand in quality. It may take 10 years for domestic cars to catch up with joint venture cars as a whole. R&D and innovation take too long, and it takes months or a year to verify casually. Domestic cars still have a long way to go, and now they are only in the stage of insufficient technical equipment. I can only say "Come on, domestic car companies".
The three major parts of domestic cars are not as powerful as some people think, nor are they lost to joint venture cars, or at least to Korean car companies like Hyundai Kia. In fact, there is still a certain gap. But it's not as bad as other parts think. For example, driving for three to five years is a problem, and the overall quality of domestic cars can be said to have advanced by leaps and bounds in recent years. The latest generation of domestic cars, such as the brand-new Haval H6 Emgrand CS75, are still very stable, and there is no problem in long-term use. Consumers are not fools.
For example, Harvard started by buying Mitsubishi engines, and now it has independently developed 1.5T and 2.0T engines, and the overall performance parameters are still relatively strong. The second generation CVVL continuously variable intake valve technology, ultra-high pressure fuel system and high transient response electronic control supercharger are adopted, which is quite tough for engine power mining. The power parameters of 2.0T engine can basically reach the level of Volkswagen and Toyota, but it is slightly weaker than GM and Nissan. Of course, this is only a technical parameter, and the power attenuation and reliability after long-term use need to be further verified. In fact, the first thing to build a car is technology, and the second is experience accumulation. Now the Great Wall Geely is technically speaking, except for a few new engines that cannot be realized due to the technical level, most of them are first-class solutions adopted internationally.
Of course, due to the limitation of domestic situation, domestic cars have to do worse on naturally aspirated engines, and large-displacement self-priming has not been involved. After all, turboization is the current trend, and joint venture vehicles are slowly turning to turbines.
In terms of gearbox, limited by patent barriers, most at gearbox patents are in the hands of Aisin and ZF, so domestic cars mainly develop dual-clutch and CVT gearboxes. For example, Great Wall Geely's dual clutch gearbox and Chery's CVT gearbox have a very good reputation. Some domestic cars will also choose to purchase Aisin's 6AT gearbox, which is nothing to be ashamed of. Just use it. PSA and Volkswagen also buy Aisin 6AT.
Generally speaking, domestic gearbox technology has a certain reserve, but it still lags behind those real gearbox giants, such as Aisin (Toyota), ZF (BMW), Jieke (Nissan) and Mobius (Hyundai). The main gap is that they may build a higher-end CVT gearbox, such as 8AT 10AT 10, which domestic cars can't do for the time being. However, ordinary cars and domestic cars below100000, whether developed by ourselves or bought by Aisin Trak, are also sufficient.
Compared with the engine and gearbox, the chassis technology gap between domestic cars and joint venture cars is greater. After all, chassis technology is largely related to the layout and production standards of automobile systems, and this joint venture has rich experience. In the early days, the chassis of most domestic cars relied on the reverse CRV Highlander. However, due to experience problems (domestic cars are still willing to use materials), abnormal noise or rust often occurs in the past year.
Now, after years of accumulation, there are fewer problems, and the adjustment level of domestic cars for chassis is slightly poor, mainly due to the accumulation of experience.
Generally speaking, the momentum of domestic cars is still quite good. In fact, around 2000, car companies headed by Chery BYD once sold well, but at that time, China enterprises accumulated less core technologies, which were still somewhat controlled by others. Later, the joint venture cut prices and got stuck in the neck, and soon closed down. Now a new generation of car companies, such as Great Wall Geely Chuanqi Changan, are still relatively stable. Although the early cars did have some shortcomings, such as the high fuel consumption of the old Haval H6, they are getting closer and closer to the level of joint venture cars and are developing in a good direction.
Even if domestic cars use zf gearbox and copy a Mercedes chassis, engines with good power and long life will complain for a long time: patchwork! I said that BMW is also patchwork, and he would say that BMW can patchwork at the same level? So, let's not talk about three major events. Since it is a domestic car, even the best car is the original sin in some people's eyes: you are a bad car because you are a domestic car!
Judging from the country's vigorous development of electric vehicles, it has basically lost patience and confidence in domestic automobile manufacturers. Because the electric car doesn't need an engine, it only needs a motor, and it doesn't need such a complicated gearbox. The country wants to overtake European and American cars in corners by electric vehicles. Domestic fuel vehicles are now about the level of developed countries in the 1980 s
There is not much difference between independent brand hardware and joint venture brand, and the key is software. The so-called software is mainly a variety of parameter settings, such as the same engine, different tuning parameters will have completely different dynamic performance. All kinds of parameters are accumulated by long-term test experiments under various working conditions. The parameter accumulation database of independent brands is not as rich as that of joint ventures.
Why catch up? Now that the technology is enough, it is no problem for domestic Chery Changan to close its eyes for 300,000 kilometers without overhaul. What's more, how many households can open to 300 thousand?
Decentralized China car companies can never compete effectively with foreign car companies and need strong integration.
Isn't it a joint venture car? It will soon surpass the original import! Domestic cars have good quality, low price and high configuration, and have not been overhauled in 10. Ha ha laugh