Technical Knowledge
What are the types of pressure sensors on the car?
There are many types of pressure sensors on cars, and here are some of the main ones:
1. Fuel pressure sensor: used to monitor the pressure of the fuel system to ensure normal engine start and operation.
2. Oil pressure sensor: used to detect the pressure of oil to prevent engine damage due to low oil pressure.
3. Air pressure sensor (or intake pressure sensor) : used to measure the air pressure entering the engine to adjust parameters such as the ignition advance Angle.
4. Tire pressure sensor: It is used to monitor the pressure of the tire in real time to ensure driving safety and comfort.
5. Brake pressure sensor: used to detect the pressure of the brake system to ensure the safe braking of the vehicle.
6. Coolant pressure sensor: used to monitor the working state of the cooling system to prevent overheating failure.
In addition, there are other pressure-related sensors on the car, such as:
* Atmospheric pressure sensor: used to check atmospheric pressure, and air fuel ratio correction.
* Air filter vacuum switch: check the pressure difference to determine whether the filter is blocked.
According to the different structure and principle, pressure sensors can also be divided into:
* Resistive pressure sensor: A sensor that uses resistance values to measure changes with pressure.
* Capacitive pressure sensor: A sensor that uses capacitance changes to measure pressure.
According to different test pressure types, pressure sensors can be divided into:
* Gauge pressure sensor
* Differential pressure sensor
* Absolute pressure sensor
In addition, according to the way the signal is generated, the pressure sensor has two types: voltage type and frequency type. The voltage type pressure sensor includes varistor type sensor, variable inductance type pressure sensor, diaphragm type pressure sensor, variable resistance type pressure sensor, pressure switch type pressure sensor, etc.
Please note that the sensor types listed above may vary by vehicle model, make, and year.
The above information is for reference only, do not do professional literature