1928498690 Automotive Electrical Connector Terminal Plug-in

3. Application and development of automobile sensors

(1) The application of sensors on cars

The earliest vehicle sensors were mainly used for driving status monitoring of engines and driving systems. It is mainly aerobic, fluid, temperature, voltage, and current and other sensors. With the continuous improvement of driving safety, comfort, and handling, the requirements of various systems such as scattered safety, comfort and environmental protection are also increasing. More than 50%of the overall sensor. Generally, the sensor used on the car is based on the driving computer system as the input device. Various working status information in the operation of the car, including the temperature of the vehicle, the temperature of the car and the various media, the operating conditions of the engine, and the pavement information. Transmitted to the computer to make the engine in the best working state, the minimum emission of exhaust gas pollution, and the stable control of the body to driving the safest. As an information source of the automotive electronic control system, the automotive sensor is the key component of the automotive electronic control system and one of the core content of the research of automotive electronic technology.

At present, most cars use electronic control systems with micro -computers as the core to perform control to the vehicle's power, driving, body, braking, air conditioning and other systems. During the operation of the car, the vehicle computer continuously obtains a large amount of data information through the sensor, and the microcomputer analyzes and process these data information, and then outputs the control signal to accurately control the operation of the car to achieve environmental protection, energy saving and safety The comfortable purpose.

(2) The characteristics of automobile sensor

During the operation of the car, the car sensor needs to perform real -time, effective, and accurate measurement and control of temperature, pressure, location, speed, speed, speed, flow, humidity, electromagnetic, optoelectronic, gas, vibration and other information. Due to the changes in temperature, climate and other conditions in the driving environment of the car, such as the working environment of the engine: high temperature (the surface temperature of the engine can reach 150 ° C, the exhaust manifold can reach 650 ° C) ), Humidity (100%RH, -40 ° C to 120 ° C) and steam, salt fog, corrosion and mud pollution, etc., so that the harsh environment requires car sensors to have strong adaptability. At the same time, the car sensor must be suffered from various interference from inside the engine, as well as vibration caused by different road conditions during driving. Therefore, the automotive industry's requirements for sensors are extremely harsh. Automotive sensors must have the characteristics of stability and high accuracy, high response, good reliability, strong anti -interference and seismic resistance, and long service life.

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