Suitable for Toyota air conditioning pressure sensor 88719-33020

The development trend of automobile sensor technology in the future is miniaturization, multifunction, integration and intelligence.

At the end of the 20th century, the development of design technology and materials technology, especially Mems technology, raised the micro-sensor to a new level. Micro-sensor, signal processor and data processing device were packaged on the same chip by using MEMS machining technology, which has the characteristics of small size, low price, high reliability and so on, and can obviously improve the test accuracy of the system. Mems technology can be used to make micro sensors to detect mechanical quantities, magnetic quantities, thermal quantities, chemical quantities and biomass. Due to the advantages of Mems micro-sensors in reducing the cost and improving the performance of automotive electronic systems, they have gradually replaced sensors based on traditional electromechanical technology. Mems sensor will become an important part of automotive electronics in the world.

Automotive sensors and electronic systems are developing towards Mems sensors. Philips Electronics Company and Continental Treves Company sold 100 million sensor chips for ABS system in 10 years, and their production reached a new milestone. The two companies jointly develop the forward-looking technology of active magnetic field sensors, and the products are applied to the latest cars produced by automobile manufacturers. Continental Teves Company made wheel speed sensor with this kind of magnetoresistive speed sensor, which was used in ABS system, acceleration slip regulation, etc.

Mems sensor has the advantages of low cost, good reliability and small size, and can be integrated into a new system, and its working time can reach millions of hours. The earliest Mems devices are absolute pressure sensor (Map) and airbag acceleration sensor. MEMS/MST products under development and small batch production include wheel speed rotation sensor, tire pressure sensor, refrigeration pressure sensor, engine oil pressure sensor, brake pressure sensor and deviation rate sensor, etc. In the next 5-7 years, Mems devices will be widely used in automobile systems.

With the development of microelectronics technology and the rapid increase in the application of electronic control systems in automobiles, the market demand for automobile sensors will keep growing at a high speed, and the miniaturized, multifunctional, integrated and intelligent sensors based on Mems technology will gradually replace the traditional sensors and become the mainstream of automobile sensors.