What types of sensors are needed for cars?

Automotive sensors can be divided into temperature sensors, pressure sensors, speed sensors, speed/acceleration sensors, flow sensors, liquid sensors, displacement and orientation sensors, gas concentration sensors, and other sensors according to their applications. They are applied in automobiles, and their main measurement objects are as follows:

Temperature sensors: coolant, exhaust gas, intake air, engine oil, automatic transmission oil, interior air, exterior air.

Pressure sensors: intake manifold pressure, atmospheric pressure, combustion pressure, engine oil pressure, automatic transmission oil pressure, tire pressure, etc.

Speed sensors: crankshaft angle, crankshaft speed, steering wheel angle, and wheel speed.

Speed/acceleration sensor: vehicle speed, acceleration.

Flow sensors: intake air volume, fuel flow rate, exhaust gas recirculation volume, secondary air volume, refrigerant flow rate.

Liquid level sensors: fuel, coolant, electrolyte, washing fluid, engine oil, brake fluid.

Displacement direction sensor: throttle opening, exhaust gas recirculation valve opening, vehicle height, driving distance, driving direction, GPS positioning.

Gas concentration sensors: oxygen, carbon dioxide, nitric oxide, nitrogen dioxide, hydrogen carbide, diesel smoke, etc.

Other sensors: torque, deflagration, fuel composition, humidity, glass frost, alcohol identification, battery voltage, load, air volume, rainfall, lighting, etc.

Due to the harsh operating environment of the car itself, such as high temperatures, severe cold, rain, snow, and bumps, the sensors used in the car must also be able to withstand these tests. Overall, automotive sensors must meet the following requirements:

1. Strong adaptability and resistance to harsh environments

Cars may travel in any region of the Earth, with significant differences in environmental conditions, ranging from extremely cold regions in the North and South Poles to extremely hot climates like the equator. Therefore, it is required that sensors have strong adaptability and can operate under conditions of -40 to 80 ℃ without the need to adjust normal operations. Cars may work in extremely harsh weather conditions, sometimes filled with dust and sometimes mixed with wind and rain, so sensors should have good sealing, moisture resistance, and strong corrosion resistance.

2. Strong anti-interference ability

In addition to being able to adapt to harsh external environments, automotive sensors should also be able to resist various interferences from components such as the engine. Especially for sensors installed in the engine compartment, in addition to being able to withstand the high temperature, high pressure, and corrosion of combustion exhaust during engine operation, they also require good seismic performance and resistance to strong vibrations during engine operation. In addition, electromagnetic waves are generated during engine operation, so sensors are required to have anti-interference ability. The voltage of automotive power sources (generators, batteries, etc.) can vary from 6 to 16V, and sometimes even add positive and negative high voltage pulses exceeding 100V, so they should also have the ability to withstand surges.

3. High stability and reliability

The various components of a car are generally required to operate for 10& amp; amp; Times; Above 104km, and can still meet the specified technical specifications without the need for replacement or adjustment. Therefore, sensors must have high stability and reliability.

4. Low price, suitable for mass production, easy to repair and replace

This requires good consistency of automotive sensors, without the need for complex adjustments, and is suitable for automated production.

Modern cars that use electronic control systems or devices cannot do without sensors, such as automatic transmissions, anti lock braking systems, and drive anti slip systems. Especially in recent years, there has been an increasing number of electronic devices used in vehicles, such as safety alarm devices, communication devices, entertainment devices, and auxiliary driving devices used to improve comfort and reduce fatigue. Of course, domestic cars have only recently started in the field of electronic control technology, with a greater focus on electronic control of the engine. This is why automotive sensors have a broader development space in China.

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For sensor details, please consult the CELTRON ★ China General Agent, which is broadcasted for you in the following news

[Agent] Please search for:Guangzhou Zhongxin Automation Technology Co., Ltd

Please click on the official website: http://www.zhongxintmt.com

[Hotline] Please call: 18520271262

[WeChat] Please add: 18520271262

[Contact] Please consult Manager Chen

[QQ] Please add: 2473329660

[Email] Please send: judy@zhongxintmt.com

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Guangzhou Zhongxin Automation Technology Co., Ltd.'s main brands include:
　

Weighing sensors: Mettler Toledo weighing sensor from Switzerland, HBM weighing sensor from Germany, Transcell weighing sensor from the United States, Celtron weighing sensor from the United States, Tedea huntleigh weighing sensor from the United States, Vishay Revere weighing sensor from the United States, Sensortronics weighing sensor from the United States, FLINTEC weighing sensor from Germany, RICE LAKE weighing sensor from the United States, BLH weighing sensor from the United States, ZEMIC weighing sensor from NOBEL from the United States Mkcells weighing sensor from the United States, Corey weighing sensor from the United States, Suncells weighing sensor from the United States, Chcontech weighing sensor from the United States, OAP weighing sensor from the United Kingdom, Guangshi weighing sensor from the United States, Laumas weighing sensor from Italy, N.B.C. sensor from Italy, AEP weighing sensor from Italy, Utilcell weighing sensor and display from Spain, NMB weighing sensor from Japan, NTS weighing sensor from Japan, Bongshin weighing sensor from Korea Korean DACELL load cell, Korean Fine load cell, Korean CAS load cell, German Sartorius load cell, German Soemer load cell;

Displacement sensors: Novotechnik displacement sensor from Germany, VOLFA displacement sensor from Germany, HBM displacement sensor from Germany, Trans Tek displacement sensor from the United States, MEAS displacement sensor from the United States, GFRAN displacement sensor from Italy, RDP displacement sensor from the United Kingdom, and MTS displacement sensor from the United States;

Pressure sensors: MSI pressure sensor from the United States, MEAS pressure sensor from the United States, NMB pressure sensor from Japan, BD sensor pressure sensor from Germany, HBM pressure sensor from Germany, Burster pressure sensor from Germany, FUTEK pressure sensor from the United States, Dytran pressure sensor from the United States, SENSYS pressure sensor from South Korea;

Temperature and humidity sensor: Austrian E+E temperature and humidity sensor;