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(3) The development trend of automobile sensors

Due to the important role of automotive sensors in automotive electronic control systems, countries around the world attach great importance to their theoretical research, new materials application and new product development. The survey shows that the total development trend of automotive sensor technology in the future is a new type of sensor made of miniaturization, multifunctional, integrated, intelligent, and new materials and new processes.

① Minimalization. MEMS (microelectronics mechanical system) technology and computer -assisted design technology developed from the semiconductor integrated circuit technology and packaged micron -level sensitive components, signal processors, and data processing devices on a chip. Because it has the characteristics of small size, cheap price, and convenient integration, the system test accuracy can be significantly improved. At present, this technology is becoming increasingly mature, and various micro -sensors that can produce various sensitive and detection mechanics, magnetic quantity, thermal science, chemical quantity and biomass. Because this miniature sensor has the advantages of reducing the cost of automotive electronic systems and improving performance, they have begun to gradually replace sensors based on traditional electromechanical technology.

② Multi -functional. The integrated and multi -function sensor that assembles different types of sensitive elements on the same material or separate chip can be detected by different types of parameters, that is, the function of a variety of sensors with a separate sensor system at the same time, thereby reducing the car sensor to reduce the car sensor The quantity improves system reliability.

③ Integrated. Use MEMS technology to integrate sensitive elements and processors on a chip to make IC -type sensors.

④ Intelligence. The sensor is combined with a large -scale integrated circuit with a CPU, which has the functions of intelligent and fuzzy control to reduce the computing process and complexity of the ECU (vehicle computer), reduce its volume, and reduce costs.

⑤ Application of new materials. The application of new materials is an important foundation for sensor technology. At present, the application of new materials such as optical fiber, nanomaterials, and superconducting materials has promoted the development of automotive sensors.

⑥ Application of new processes. The performance of the sensor is not only related to the material, but also related to the processing technology. The micro -precision of processing technology has an increasingly important position in the production of sensors. With the development of integrated circuit technology, micro -machine processing technology is increasingly applied to sensor production processes. With the development of modern manufacturing technology, more advanced production technology will be applied to the production of vehicle sensors.

In short, with the development of electronic technology and the increasingly wide application of automotive electronic control systems, miniaturization, multifunctional, integrated, and intelligent sensors will gradually replace traditional sensors and become the mainstream of automobile sensors.

Sensors are mainly used in automotive control systems, chassis control systems, body control systems, navigation systems, and various auxiliary control devices. This section mainly introduces several common car sensors and their detection methods.

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