GM Buick Chevrolet Electronic Pressure Switch Sensor 12573107

Oil pressure

It refers to a micro electromechanical system integrating micro sensors, actuators, signal processing and control circuits, interface circuits, communication and power supply. Commonly used are silicon piezoresistive type and silicon capacitive type, both of which are micromechanical electronic sensors generated on silicon wafers. In general, we use the oil pressure sensor to detect how much oil is still in the engine oil of the car, and convert the detected signal into a signal that we can understand, reminding us how much oil is left, or how far we can go, or even reminding the car that it needs to be refueled.

Water temperature sensing

Inside it is a semiconductor thermistor, the lower the temperature, the greater the resistance; On the contrary, the smaller the resistance is, it is installed on the water jacket of engine cylinder block or cylinder head and directly contacts with cooling water. So as to obtain the temperature of the engine cooling water. According to this change, the electronic control unit measures the temperature of engine cooling water. The lower the temperature, the greater the resistance. Conversely, the smaller the resistance. According to this change, the electronic control unit measures the temperature of engine cooling water as the correction number of fuel injection and ignition timing. That is, we can know the running state of the car, stop or move, or how long it has been moving through the temperature of the engine water temperature.

Air mass flow

Its function is to detect the air intake of the engine, and convert the air intake information into electrical signals for output, and transmit them to ECU. We know that the driving of a car needs the ignition device to get the forward impulse. Therefore, the amount of inflation is the basis for ECU to calculate the fuel injection time, fuel injection quantity and ignition time of the ignition device when the car is ignited. Its function is to enable us to better accelerate and decelerate the car.