Electric car is a knowledge-based product

From various countries in recent yearscarFrom the perspective of the electric vehicle products or concepts that the group company continues to introduce, modern electric vehicles have indeed become a knowledge-based product. It integrates and applies many high-tech groups. Its challenging and creative design concepts are past automotive products. The field of science and technology that has not been involved is enough to make consumers yearn for it. It depicts the reality of the automobile industry and the dream of the future (Futura). In a sense, the automobile has become a historical term. The main feature of high-tech applications of modern electric vehicles is that most of the traditional products on the car have been replaced. Such as steering column,transmission,transmission shaftNo, it is replaced by a wire drive mechanism, (by the wire), and it is currently also used in some internal combustion engine vehicles. A highly modular system integration is realized. Some electric vehicles have only two system modules: the body and the chassis. Electric energy and various control system devices are integrated on the chassis, which can be connected to various styles of body modules at will, and the diversified body can be easily buckled on the chassis. Some people call it a snap-on chassis. In terms of power sources, fuel cells, hybrid power supplies or pure battery drive power supplies are used, as well as improved internal combustion engines and advanced electric buttons for hybrid vehicles. These products are continuously improved and innovated. The level of networking in electric vehicles is also rapidly increasing. A phenomenon called "externalization" of kinetic energy is increasing, that is to say, some important functions of electric vehicles can be realized through IT communication technology. The technical difficulties left on the corresponding traditional cars, such as vehicle rolling resistance, lighter weight, low drag coefficient, etc., are advanced. The shape pursues fashion and individuality. Due to the electric drive, many difficulties in the arrangement of traditional mechanical functions are overcome, and the vehicle is easier to design at will. The price of some commercial electric cars is quite close to the level of traditional cars. For example, the Prius T-Spirit hybrid car newly produced by Toyota this year is priced at 19,995 pounds in the UK, which is equivalent to 300,000 yuan, while in Japan it is only 2.15 million yen, equivalent to 18,430 US dollars. There are also some high-tech products that have made good progress in the application and development of electric vehicles. For example, in order to better realize the line transmission, the data network transmission system is required to be greatly improved. The real-time, reliability, and large-capacity of data transmission and data exchange have become the supporting technology for achieving a higher level of line transmission. At present, a TTAC time-controlled bus structure is being adopted. Its core is a time-controlled transmission technology protocol. The data transmission bandwidth can reach 25Mb/s, which is higher than the current, international vehicles using Kojin CAN ( Data network bus) is also 25 times higher. In this way, real-time data transmission can be guaranteed, and each piece of data information can be alternately sent out without error, the sending node error is minimized, and the bus monitor independently performs its own duties. TTA is jointly developed by TTTech Computer Company in Vienna and SKF Company in Sweden, and has been applied to individual electric vehicles and luxury cars. There is also a Bluetooth technology (Blue tooth), which is used to control the performance of a vehicle by remote sensing at a short distance. It has been able to wirelessly control various operating functions of the vehicle. CVT (Continuously Variable Automatic Transmission). At present, AT (hydraulic automatic transmission), which is widely used in cars in the world, generally realizes automatic transmission in the range of 4-5 gears. It is said to be automatic. In fact, it is still geared to match the characteristics of the engine. It is fully automatic. CVT is an electronically controlled V-groove with a paired conical surface structure of the driving and slave. It meshes with the metal belt. The adjustment of the speed is carried out by the movement of the metal belt on the swash plate. In theory, it can truly realize continuously variable speed. Requirements. At present, there are quite a lot of small cars, it is estimated that more than 3 million cars are installed every year, and some electric cars are used. The thermal management of the fuel cell power system is also important. The fuel cell electric vehicle is not only to solve the problem of a fuel cell stack, but also to develop a series of power and heat management systems, which is important for its practicality and safe operation. It is very important. This includes the design of the thermal characteristics of the key components of the system integration, the analysis and control of the vehicle environment, the optimization of the heat transfer in the entire power application process, the perfect and rational use of heat energy, and the improvement of heat energy efficiency. ISG (DynamoIntegration with electric motors) will play an important role in the electric drive function of electric vehicles. ISG combines traditional generators and motors in a tightly joint design, which can automatically coordinate start/stop and running status. This kind of brushless stator and rotor structure has very little wear and tear. Therefore, it can achieve maintenance-free, and can use 14V to 42V power supply system, and the power output is greatly improved. Batteries are still a key component of electric vehicles. There are more than 10 types of batteries. The application of lithium-ion batteries as a power source or auxiliary power source in Japan is quite successful. At this June International Auto Show, BYD Automobile Company exhibited Hy brid-s hybrid cars and ET battery electric vehicles, both of which are powered by lithium-ion batteries. According to people in the international car industry, most of the metal lithium batteries currently used have been replaced by carbonized lithium batteries, which are not only energy efficient, but also safer. The high-tech applications of these electric vehicles are still undergoing continuous transformation and development. In today's increasingly developed knowledge economy society, an important feature is the deepening trend of knowledge economy integration, knowledge economy, and economic knowledge. This kind of fusion and interaction process often produces new bright spots at its connection point, which has important practical significance for the combination of the electric vehicle industry and high technology. (Chen Guangzu)