Future automotive electronics technology applications

With the continuous development of the automotive industry and the electronics industry, in modern automobiles, the application of electronic technology is more and more extensive, and the degree of electronic electronics is becoming higher and higher. Automotive electronics is the result of a combination of automotive technology and electronic technology. It can be said that today's cars have entered the era of electronic control, and all of this depends on the development of electronic technology. Foreign experts predict that the cost of electronic devices equipped on automobiles will account for more than 15% of the cost of complete vehicles. Cars will be developed from simple mechanical products to advanced mechatronic products, becoming so-called "electronic cars", which is already the trend of the times.

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The development trend of automotive electronics technology

In the 1990s, automotive electronics technology entered the third stage of its development. This is the most valuable and most beneficial stage for the development of the automotive industry. It will also be the most important to optimize the overall relationship between the human-automobile and the environment. stage. The miniaturization of ultra-miniature magnets, ultra-efficient motors and integrated circuits provides the basis for centralized control of automobiles (eg centralized control of braking, steering and suspension, and centralized control of the engine and transmission). At the same time, intelligent integrated sensors and intelligent actuators will be put into practical use, and digital signal processing methods will be applied to voice recognition, safety collision, timely diagnosis and navigation systems.

The intelligent integrated sensor of the sensor in the future not only provides signals for simulation and processing, but also amplifies and processes the signal. At the same time, it can automatically perform time drift, temperature drift and nonlinear self-correction, and has strong resistance to external electromagnetic interference, ensuring that the quality of the sensor signal is not affected, even under particularly harsh conditions. Maintain high precision. It also has the advantage of being compact and easy to install, thus protecting it from mechanical properties.

Microprocessors are widely used in safety, environmental protection, engine, drive train, speed control and fault diagnosis. At present, 8-bit microprocessors in the United States account for the majority, accounting for about 65% of the total. 16-bit and 32-bit microprocessors are rapidly expanding the market. In the past two years, the amount of 16 people has increased by about 50%, while the number of 8 people has increased by only 11%.

Software technology As automotive electronics technology increases, so does the need for control software, and may require further networking with computers. Therefore, a variety of software is required, and a common high-level language is developed to meet the requirements of various hardware. In 2000, the total processing capacity of a car computer reached the level of a typical computer host. Multi-channel transmission networks on cars will rely heavily on software. The increase in the total number of software and its improved functionality will enable computers to perform increasingly complex tasks.

Integrated technology One trend in automotive electronics is the integration of functions to enable more economical, efficient and diagnosable data centers. Integration of the sensor system reduces wiring, simplifies the control system, and reduces the size of the sensor system by 60% to 80%.

Automotive In-Vehicle Network Due to the increasing functionality of automotive electronics technology and the increasing complexity of systems, an important trend in the development of automotive electronics is the extensive use of microprocessors to improve vehicle performance. With the increasing use of electronic control devices in automobiles, data communication between in-vehicle electronic devices is becoming more and more important. In order to further improve the economy of driving. Information such as temperature and speed must be exchanged between different control units. Therefore, it is necessary to construct an automotive in-vehicle electronic network system based on a distributed control system. The rapid exchange of large amounts of data, high reliability and low cost are requirements for automotive electronic network systems. In this system, each processor operates independently, controlling the performance of one aspect of the vehicle, while providing data services when needed by other processors. The main processor collects the data of each slave processor and displays the vehicle condition information. The communication controller guarantees the normal flow of data.

Application Research of Intelligent Vehicles and Intelligent Transportation Systems (ITS)

For decades, technical issues related to automotive intelligence have been highly valued by automakers. From the original "autopilot" concept to the current "Intelligent Transportation System (ITS)" development research, all rely on the continuous improvement and advancement of electronic technology, especially computer technology. As a huge system engineering, smart cars and ITS still need to overcome many technical obstacles. But you can be sure that the realization of all this will not be a distant dream. In fact, the technology associated with this project has been partially integrated into the automotive industry, such as navigation systems and collision avoidance systems.

Throughout the major achievements in automotive technology in recent decades, almost without exception is the result of the application of electronic technology, and since the 1980s, the automotive industry has made great progress, also in electronic technology (especially computers, integrated circuits). Technology) is achieved by power. The use of electronic technology is the best solution to solve many of the technical problems faced by automobiles. Therefore, the level of a country's electronics industry and its application in the automotive industry determines whether it can take the initiative in the future world auto industry competition.

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