First of all, let's talk about the status quo of Geely and Chery. Geely quickly seized a large market with the hot sales of Emgrand and Borui, and the actual performance of these models was also remarkable. Not only does the exterior interior not lose the joint venture car, but the failure rate of the hundred cars is also quite low. In addition, a few years ago, Geely acquired Volvo and made itself famous in the world. At the same time, through the digestion and absorption in recent years, my technology has also made great progress, especially in my own high-end cars, many Volvo technologies are directly used, and Geely's good hand adds a lot of color to my flagship.
Let me talk about Chery again. Chery, as the big brother of domestic cars, almost existed at the ruling level in the early days. Chery QQ is the best proof. Reliable quality and low price made Chery QQ a big fire that year. But then we found that Chery's sales were not ideal. There are three main reasons. First, Chery QQ is very famous, but the ultra-low price of Chery makes everyone feel that Chery is a brand that produces low-end and cheap products. Second, the appearance of Chery has failed to keep up with the progress of the times and does not conform to the aesthetics of young people now, so many people lost Chery pass at first sight. Third, Chery has invested too little in brand advertising marketing, resulting in brand awareness and influence less than Geely.
So Chery is really not as good as Geely? The old driver said: Chery, as an old domestic automobile brand, still has some advantages. For example, most domestic enterprises do not attach importance to the research and development of the three major automobile parts, either imported or made with poor quality. Chery has always adhered to the independent research and development of the three major parts, so Chery can be said to be second to none among domestic cars in terms of reliability and performance and quality. Chery ignored the market demand, and its brand marketing and appearance were too weak, which led to its own market performance not as good as expected.
Finally, I personally think that Chery's excellent quality of light marketing and heavy technology is exactly what domestic cars need. The sales volume is only temporary, but the accumulation of technology depends on time and energy. Only when the level of independent development of domestic cars is improved can we hope to surpass joint venture cars and imported cars, and we have always relied on importing three large pieces, which are only joint venture cars covered with domestic shells.
In recent years, domestic automobile brands have developed very well. With the development of economy, the market demand is great, and domestic cars develop rapidly. Many domestic cars with excellent performance and high cost performance have been introduced. Consumers have a better impression of domestic cars, including Geely Automobile and Baojun Automobile. In people's impression, Chery Automobile is a brand with a good reputation. As far as automobile sales are concerned, Geely Automobile sold 6.5438+0.5 million vehicles last year, which can be said to be quite good, but the production technology of Chery Automobile is obvious to all. So what's the difference between Geely and Chery?
For Geely and Chery, two domestic automobile brands, many people think that Geely and Chery's cars are domestic cars with very good performance. Geely automobile has a very fashionable appearance. It looks energetic and meets the aesthetic standards of modern young people. The quality of Chery's car is very good. Many people who buy cars in Chery say that the quality of the cars is very good. But for people who know more about cars, the development routes of Geely Automobile and Chery Automobile are very different. One is really informative, and the other is really talking!
Let me introduce Chery Automobile first. Chery automobile is a real automobile brand. In many people's impression, Chery automobile is equivalent to a technical residence. In the current automobile market, it can realize the three major parts of the automobile and is an independent automobile manufacturer. Chery can be said to be one of the best, especially its newly developed 1.6 ton engine, which has attracted a lot of attention and will appear in front of everyone with the listing of high-end brands. However, to people's surprise, the quality of Chery automobile is really very good. However, car sales are relatively average. Many people think that Chery's appearance and interior are in line with the aesthetics of straight people, but not with the personal aesthetics of modern young people.
Geely automobile brand and Chery automobile brand are just the opposite. From the perspective of automobile production technology, Geely Automobile is a relatively new automobile brand. The production technology of many cars is not perfect enough, so we need to learn from other car companies. However, Geely's car sales are very attractive. Compared with similar cars, Geely's car sales are very good. Many people think Geely's cars sell well. On the one hand, the overall performance of the car is very good. On the one hand, the most important thing is that Geely Automobile can grasp the psychology of consumers well. When new car configurations appear, it won't be long before these car configurations will appear on Geely's latest models, which means that consumers' demand for Geely cars will be reflected in their own cars!
What's the difference between Geely and Chery's riders? One is very resourceful and the other is very talkative! Compared with Chery and Geely, Chery's cars are really skilled and predictable, while Geely's cars often advertise. But overall, Geely's car performance is also very good. If the quality of publicity itself is not good, it will not be recognized by people!
Chery automobile can be said to be the "big brother" of domestic cars in the past decade, which is also inseparable from its own characteristics. Everyone knows that Chery Automobile has been pursuing the development strategy of independent research and development, so through the continuous development and transformation in the past decade, its technology accumulation can be regarded as the deepest one among domestic cars, and it is called "technical house" by netizens. Another is that Chery's engine, chassis and gearbox have a good reputation in China, and other domestic automobile brands are not as good as it, which is a feature of Chery compared with Geely! However, Chery's development in China in recent years is not good, and it is gradually surpassed by other independent brands, especially in marketing, shape design and after-sales service. Chery's development is obviously not as good as other independent brands, which also leads to the decline of Chery's reputation and sales. However, the Arrizo GX launched by Chery in the past two years, as well as the new models such as Starway and Tiggo recently, have obviously improved their own shortcomings, thus increasing sales to a certain extent.
Let's take a look at Geely Automobile. In recent years, its development in China is in full swing. Not only has it surpassed Chery Automobile in body design and power configuration, but its sales volume is also increasing year by year. It may also be that Geely Automobile has learned the lessons from the development of Chery Automobile, so Geely Automobile has continuously absorbed the technical achievements of international excellent brands in its development in recent years! Not only that, Chery Automobile also acquired famous Swedish brands Volvo Cars and Proton Cars in Malaysia, which can be said to provide a strong boost for Geely's development. In addition, it is now the largest shareholder of Daimler, which invisibly increases Geely's brand influence. In terms of various technologies, Geely has this powerful "backstage" and is still very strong in vehicle layout. For example, Geely Job, Geely Emgrand gs, which are very popular recently, and Geely Yue Bin, which is newly listed and highly praised, are particularly high among domestic independent brands. Moreover, Geely Automobile is really superb in marketing, which is called "marketing madness", so Geely Automobile will develop faster and better in the future.
Chery is a technology from simple imitation to independent innovation (although not new enough), with a wide product line and independent research and development and adjustment of chassis. This is the biggest difference from the other three companies.
Born in Anhui, a local car company is a technology research and development factory, with a perfect power matching system and the technology of independent research and development and adjustment of chassis. After ten years of rough roads, Chery's last ten years were simply terrible, and countless public opinions poured in, retreating to the domestic second line. But now Chery has changed a lot. After rectification, Chery, with its innate advantages, is catching up and its strength is not bad!
Geely, who is also from the grassroots, has gone through countless detours in the last decade. Chery has the help of Anhui, but Geely has only Li Shufu's insistence. It is his persistence that has made Geely what it is now. Millions of sales of an Emgrand have made Geely go through a difficult period, and countless Emgrand owners have built a bridge across the river for Geely like an army of ants.
This is a bit difficult for you to answer, hehe. Geely and Chery are both independent brands of cars. In other words, Geely's development momentum is better than Chery's, and its sales volume is much higher than Chery's. In other words, Geely and Changan are the first camp of independent brands, and Chery is the second camp of independent brands. Are you satisfied with this answer?
One is slippery and the other is stupid.
Hello, I'm glad to answer your question.
The appearance of Geely automobile is very fashionable and looks dynamic, which is very in line with the aesthetics of modern young people.
The quality of Chery cars is very good, and many people who buy Chery cars have poor quality.
What are the three main parts of a car?
Although the design, configuration and cost performance of self-owned cars are very good now, many consumers are still aiming at the joint venture brand, not only because of the good brand, but also because the technology of the three core components of the car is mature and reliable. The so-called three parts of a car refer to the engine, gearbox and chassis. The advantages and disadvantages of the three parts of a car are directly related to the grade of the car and the life safety of the driver. In front of these three parts, the others are just floating clouds.
The first is the engine. The engine is considered as the heart of a car. The engine is the power source of the automobile, which is responsible for converting the chemical energy of the fuel into mechanical energy, thus driving the automobile forward. At present, there are two intake forms of the engine: natural inhalation and turbocharging.
As far as naturally aspirated engines are concerned, German cars are not as good as Japanese cars, such as Toyota's VVT technology and Honda's i-VTEC technology, especially Honda, which has always been known as the "king of self-priming". Naturally aspirated engine has mature technology, long-standing reputation and high reliability. The short board is that the power is sometimes too weak, not as good as a turbocharged engine.
Turbocharged engine can be described as a rising star, sailing with the global pursuit of environmental protection, expanding with fuel saving and strong power. The most obvious thing is that the German BBA (Mercedes-Benz, BMW, Audi) successively replaced the main models with turbocharged engines. But in fact, Volkswagen's turbocharging technology is actually the earliest power that has penetrated into the hearts of Chinese people, and it can also be said that it has set off the domestic pursuit of turbocharging power.
Gearbox is the power transmission device of automobile. The power system is not only as important as the engine, but also the gearbox, because it is directly related to the fuel economy, handling comfort and even riding comfort of the vehicle. As far as the classification of gearbox is concerned, it can be roughly divided into manual gearbox and automatic gearbox (manual mode is called manual-automatic gearbox), and automatic gearbox can be divided into AT hydraulic automatic gearbox, stepless gearbox, double clutch gearbox and so on.
Manual gearbox has fast response, high driving pleasure and fuel economy. Automatic gearbox is easy to use, with slightly higher fuel consumption than manual gearbox, slower response, stability and reliability. In fact, most people who really play with cars love manual transmission. Manual gearbox is the most efficient and fuel-efficient. For skilled drivers, manual transmission is the most fun to drive.
Finally, the chassis. Many people compare the chassis to the skeleton of a car, and the quality of chassis technology directly affects the safety, handling, comfort and economy of the car. Automobile chassis consists of four parts: transmission system, driving system, steering system and braking system. A good chassis has a stable center of gravity, a sense of grasping the ground when driving, and a small roll when cornering, giving you the feeling of "integration of people and vehicles".
1 engine
1. 1 Geely's engine technology
At the end of 1990s and the beginning of this century, Geely's survival power came from Toyota's 8A series engines. At that time, Geely, the United States and Japan directly carried this Toyota 8A engine.
In 2003, Geely's first 1.3L engine, MR479Q, was officially launched. This engine originated from the imitation of Toyota 8A engine. With the birth of MR479Q, Geely first solved the problem of whether there is an engine.
In August 2006, Geely officially launched JLG18, the first CVVT engine in China, and the source of this engine is Toyota's 1ZZ-FE engine.
Subsequently, Geely derived JL4G 15 engine by adjusting piston stroke and changing valve timing.
The models equipped with this power include entry-level models such as Geely King Kong, Geely Vision, Geely Emgrand and Geely Vision X3. If the loading of JL4G 18 engine is considered, this range can be extended to Geely Emgrand GL, Geely Emgrand GS and other models.
At present, under Geely's product structure, it is still the technical support of the old engine more than ten years ago. Of course, the benefits of using this old engine are also obvious, at least there will be no large-scale quality problems.
Subsequently, Geely 1.3T turbocharged engine was launched, catching up with the era when local brands got together to launch small-displacement turbocharged engines.
This turbocharged engine with internal code name JLB 14 13T is said to be a product independently developed by Geely, and there are also rumors that the technology of this engine originated from Mitsubishi. Judging from its cast iron cylinder block, it is impossible to have much to do with the naturally aspirated series introduced before.
The reason why this engine uses cast iron cylinder block is not because of the cost consideration mentioned in the previous official draft, but because the cylinder pressure of the engine is too high after using supercharging technology, and Geely cylinder block casting technology for aluminum cylinder block can not meet the strength requirements. Of course, there is another possibility to really imitate Mitsubishi's technology, because Mitsubishi's same power is cast iron structure.
It should be noted here that Geely's 1.3L turbocharged engine does not adopt in-cylinder direct injection technology.
In fact, the turbocharging power introduced by local brands a few years ago is the same as the turbocharging technology popular on the previous cars 20 years ago, except for an extra turbocharger. Direct injection technology has only gradually appeared in local brands in recent years, and Geely's products can reach the level of direct injection, which is already the era of Job.
Geely's self-developed 1.8TGDI turbocharged direct injection engine will undoubtedly help Volvo in research and development.
Seeking truth from facts, Geely's main power technology is still at the oral advanced level. What's more, as a successful power system, the performance of book data alone can't explain the problem. The smoothness of engine output and the matching degree with gearbox are the most important. From the perspective of engine technology, Geely also has a way to go.
1.2 changan's engine technology
Jiangling brand engines, Changan bread and its engines produced by Jiangling Machinery Factory under Changan Group are all Japanese imitations. Jiangling engine is as famous as Dongan engine, and it is probably the earliest manufacturer of small displacement engines in China.
It must have used Suzuki's technology, but it must be clear that it is made in China and all of them are Jiangling's engines. Jiangling's engine was originally imported from Japan, and later it bought the technology and production line of Isuzu in Japan. It is a real engine of Isuzu technology. There are only two engines using this technology in China, one is Qingling and the other is Jiangling.
Changan Automobile's 1.0T three-cylinder engine is developed and manufactured by its subsidiary Harbin Dongan Engine Factory. As early as 20 13, the engine was successfully ignited, and then it was mass-produced after improvement and adjustment in 1 year, in which Ford's engine technology was "borrowed".
The current models of Changan Automobile are H series, EA series and S series.
H-series engine is an all-aluminum engine with inline 4 cylinders 16 valves. The H-series engine was put into production on 20 10, and is currently installed on Changan self-owned brand cars and small and medium-sized SUV series models.
From the model point of view, the first famous and most frequently used engine in Chang 'an is BlueCore 1.6L naturally aspirated engine, which is equipped with the second generation Yidong, the new generation Yuexiang just listed, and the new CS35plus coming soon.
Changan's 1.6BLUECORE engine is actually very general, which can be seen from the external characteristic curve. The highlight of this engine is that the maximum power and torque are slightly larger, and it has no advantage compared with competitors such as Chery's 1.6.
However, the disadvantages are also obvious: the maximum torque explosion point is as high as 5000 rpm, and the maximum torque output range is 4500-5000, with a range of only 500 rpm. The characteristics of the overall curve are: within 5000 rpm, the higher the rotation speed, the stronger it is, suitable for high-speed operation, and extremely weak in urban low-speed operation.
This level is obviously not enough. It is much less difficult to make the engine into a high-speed engine than to raise the high and low torque or stabilize the torque output in a large range. Changan has a long way to go.
The most advanced is the newly developed BlueCore 1.5T, which is the star engine of Changan brand. These two engines are both produced in Chongqing Yu Zui base, and both engines are independently developed. Bluecore 1.5T is a turbocharging technology adopted by Changan with the support of Birmingham Power R&D Center. This engine is equipped with many models, such as: Che Ruijing CC, SUV series 55, the new 75 just listed, and the first plug-in hybrid version CS75phev in Changan.
BLUECORE 1.5T adopts all-aluminum cylinder block and cylinder head, and T5 heat treatment process is added to the cylinder block to improve the dimensional stability and deformation of the cylinder hole, so as to reduce the piston air leakage by about 20% and improve the engine economy. The arc design of the rear end of the cylinder can reduce the weight, improve the structural stiffness and improve the modal of the whole machine by 20%.
There is also the Blue Whale 2.0T engine, produced in Dongan. At present, only CS95 is equipped with this engine. However, the latest online explosion Changan Automobile will soon launch the crossover SUVCS85, which will also be equipped with this engine.
The engine is independently developed by Changan Automobile, with the maximum output of 17 1kW and the maximum torque of 360Nm, matching the 6AT automatic gearbox from Aisin. Among them, the fuel consumption of front-wheel drive vehicles is 9.8L/ 100km, the curb weight of four-wheel drive vehicles is 2 120kg, and the fuel consumption is 10.3L/ 100km.
1.3 Chery engine technology
1997, Chery's workshop officially broke ground, and the first pile was laid in Chery's engine workshop, which means that Chery made the engine first and then the whole vehicle. Speaking of the birth of Chery's first engine, we have to mention a story that Chery fans are familiar with.
1996, Chery just imported a Ford second-hand engine production line from Wales, England, with a cost of 29.8 million US dollars. Because of not mastering the core technology of the assembly line, Chery had to reach an agreement with the British side called "turnkey project", that is, the British side sent technicians to assemble the production line, and Chinese personnel could not participate in the assembly process.
However, the laziness of British technicians finally made Yin Tongyue stand up and proudly said, "Let foreigners go, let us do it ourselves!" . After 500 days of painstaking research and experiments, numerous difficulties and obstacles were overcome, and finally the production line was successfully installed and debugged in1998+February.
1999 may 18, Chery officially announced that the first engine in the history of the enterprise was successfully ignited. As a result, Chery officially embarked on the road of engine research and development.
During 2002-2003, Chery cooperated with AVL of Austria to develop 0.8L and 1. 1L engines, and entrusted the latter to design as many as 18 engines with displacement ranging from 0.8L to 4.2L ..
In fact, Chery's first generation engine was carried by Chery QQ. The first generation acteco engine was equipped with engines with various displacements of 0.8-2.5L The earliest engine was the 0.8L engine with the smallest volume and the least displacement. Since then, a number of 1.0L engines have been introduced. QQ's power system is relatively simple and has won a lot of praise in the market.
In fact, Chery's second-generation engine is the most widely contacted. The models equipped with second-generation engines are Chery A3, Tiggo 3, Tiggo 5 and Tiggo 7. The biggest feature of the second generation model is that the displacement is larger than that of the first generation model, and there are more types of engines. Piraeus 3 once had a supercharged product of 1.6T, and Ariza 5 was equipped with a turbocharged engine of1.5t. Of course, the second generation engine ensured sufficient stability.
Chery's third-generation engine takes the high-power version of 1.6TGDi as an example. The maximum power of this engine is 160Kw and the maximum torque is 320 n m.
The thermal efficiency of Chery's third-generation engine exceeds 37%, which is close to Honda Civic's 1.5T engine.
It is undeniable that Chery has also used Mitsubishi engine, and Tiggo 2.0 uses 4G63 2.0L Mitsubishi engine.
2 transmission
2. 1 Geely's transmission technology
Geely's road to automatic gearbox can be divided into four steps: Mitsubishi engine and 4AT in the early stage, Bang Qi independently developed engine and CVT gearbox in the middle stage, and now it independently developed 6AT after purchasing DSI, and 7DCT after digesting Volvo dual clutch technology in the future. It can be said that Geely has brushed all kinds of copies of the automatic gearbox and dabbled in everything.
Geely made the first 6AT in China, and the main technology came from Australian DSI, but now Geely has completely digested and absorbed it, otherwise it will not announce the sale of the main equity of DSI, and will turn to dual clutch technology in the future.
Geely is a very smart enterprise with a unique management style of Jiangnan people. Prior to this, countless car companies were severely hit in the mid-to high-end market, but Geely Borui has always occupied a place in the sales of about 5,000 vehicles, which is really rare.
2.2 Chang 'an transmission technology
Everyone knows that Chongqing Qingshan Transmission under Changan Group is the most important transmission assembly supplier of Changan Automobile. Changan automobile demonstrated its research and development technology of DCT transmission at the auto show n years ago.
But in addition, Changan Automobile established a British design center in Birmingham, England around 2000. Over the past six years, the British R&D Center in Chang 'an has completed the research and development of three engines, namely, D20TGDi, H 13T and EA 14S, and obtained more than one international patent 10. In addition, it also took the lead in developing a 7-speed DCT automatic transmission, as well as a newly developed DCT control system and a full hybrid vehicle control system. This 5-speed wet power shift equipped with CS 15 was born here.
Changan launched DCT, which should be said to be a technical test. You know, transmission, as the core component of automobile, has always been the key to the development of independent brands. Since the earliest independent models were all equipped with Mitsubishi engines, mainstream independent brands such as Chery, BYD and Geely began reverse research and development, and gradually formed their own power technology. Transmission is also facing the same growth process, from manual gear to AMT, and then to manual and automatic dual clutch. These technical bottlenecks are being broken through one by one.
At present, the automatic transmission models of Changan Automobile are Yidong, Ruicheng, CS35 and CS75. Most of them use Aisin 6AT gearbox.
The 6-speed automatic gearbox independently developed by Chang 'an officially went offline. Changan Automobile is the controlling shareholder of Harbin dongan power, and the 4-speed automatic and 5-speed dual-clutch gearboxes of Changan's models are from Dong 'an. The 6-speed automatic gearbox put into production this time is expected to be installed on six models including CS75, replacing the current Aisin 6AT gearbox.
The 6AT independently developed by Changan Automobile adopts the third generation ultra-long stroke hydraulic torque converter, clutch low-resistance friction technology, locking area expansion design, etc. And the fuel economy and transmission efficiency are improved.
When shifting into the P gear, the locking mechanism inside the 6AT gearbox will be combined with the parking gear inside the gearbox, thus achieving the purpose of parking. This 6AT gearbox can be used in cars and SUVs, covering the range of 1.2t-2.6t, and supporting the maximum peak torque of the engine of 300Nm.
2.3 Chery's transmission technology
Chery was the first to get rid of Mitsubishi's imprisonment, and once the boss of China automobile enterprises, its vision was naturally longer. In 2003, Chery established Chery Seiki Company, focusing on the research and development of gearboxes. In 2004, Chery's own CVT was formally established. At that time, the senior engineer of DSI in Australia was hired as the general manager of Chery Seiki. Later, on the eve of the bankruptcy of DSI and its acquisition by Geely, Chery took the opportunity to poach a large number of technicians.
In 2009, the first CVT gearbox with independent patent in China was rolled off the assembly line. Although it can't carry too much torque, it seems to have good reliability and stability so far. However, the development of the automobile industry has never been unique. Although Chery has its own patents, almost all its core components, such as Ricardo in Britain, Bosch in Germany and bearings and clutch plates in Japan, are outsourced.
Most of Chery's automatic transmission models are CVT continuously variable gearboxes. This self-developed gearbox performs well, and most models such as Arrizo 5 and Tiggo 7 are equipped.
In addition, the new generation DCT dual-clutch gearbox jointly developed by Chery and Getrag is also mounted on the Tiggo 7. Compared with the previous models on the Qoros 5, the problems of clutch overheating, gear shifting frustration and poor stability have been optimized. Driven by the fuel consumption and cost advantages of dual clutch, Chery's product strength may go further.
Later, Chery independently developed 4AT and assembled it with its own small car. Although ridiculed by many people that "4AT was finally made in the 8AT era", it is also a bold attempt by independent car companies. Chery has long since lost its scenery, but as the first person who bravely tried to develop it, his courage is commendable.
3 chassis
3. 1 Geely Chassis Technology
In the early days, Geely divided its products into five grades: A00, A0, A-/+ and B, excluding A00 Panda series with the smallest market audience. Geely's King Kong, Vision and Emgrand models are all made on the brand-new FE platform, while the B-class model Borui is made on Geely's brand-new KC mid-level car platform.
In other words, Geely's FE platform is the most popular platform now, producing Emgrand series and Vision/King Kong models. These models have a huge market share.
FE platform is the main platform of Geely at present. On the FE platform, Geely has produced many models, such as Emgrand series and Vision series, which account for a large part of the family sales. Geely FE platform is a brand-new platform, but there are no parameters that can be announced to the public. In other words, Geely officials probably don't understand the FE platform for some reasons, but we can still see from some chassis comparison diagrams that Geely's FE platform has a certain relationship with Toyota, and the chassis design of many models is similar to Toyota.
Emgrand's chassis structure is similar to that of Toyota Corolla. Of course, it is not only the model of Emgrand GL, but also the chassis structure of classic Emgrand and brand-new Emgrand. In fact, the reason is very simple. Emgrand's FE platform still lacks core technology and has not reached the level of a truly modular platform. By reversing the Toyota chassis, an inherent chassis system was formed, and then a glorious chassis design was made through later design, and then a brand-new model was put into production. In fact, Geely's chassis technology is relatively backward, and it has also become a knowledge in the industry.