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oil pressure sensor Audi
The Audi oil pressure sensor is located next to the oil filter element. A plug with a wire is located in the oil gallery in front of the oil filter element. Automobile oil pressure sensor is an important device to detect the oil pressure of automobile engine. The detected data can help control the normal operation of the engine.
The working principle of Audi oil pressure sensor is that when the engine is running, the pressure measuring device detects the oil pressure, converts the pressure signal into an electrical signal and sends it to the signal processing circuit. After voltage amplification and current amplification, the amplified pressure signal is connected to the oil pressure indicator through the signal line, and the proportion of current flowing through the two coils in the oil pressure indicator changes, indicating the engine oil pressure.
The working principle of the engine oil pressure sensor:
The oil pressure sensor is installed on the main oil passage of the engine. When the engine is running, the pressure measuring device detects the pressure of the oil, converts the pressure signal into an electrical signal and sends it to the signal processing circuit. After voltage amplification and current amplification, the amplified signal is amplified by the signal line. The pressure signal is connected to the oil pressure indicator, and the ratio of the currents passing through the 2 coils inside the oil pressure indicator is changed to indicate the engine oil pressure. The pressure signal after voltage amplification and current amplification is also compared with the alarm voltage set in the alarm circuit. When the voltage is lower than the alarm voltage, the alarm circuit outputs an alarm signal and lights the alarm light through the alarm line.
The structure of the engine oil pressure sensor:
The electronic oil pressure sensor is composed of a thick film pressure sensor chip signal processing circuit, a casing, a fixed circuit board device and two leads. , traveling wave circuit and alarm circuit.
Oil inspection tips are described as follows:
1. The engine oil alarm means that the computer detects that the engine oil level is low, or the engine oil may be short or the engine oil level sensor may be damaged.
2. If the oil pressure is insufficient, first check whether the oil pressure sensor is damaged.If it is not damaged, check whether the oil receiving port of the oil pump is blocked. Remove the oil pan for inspection.
3. When the oil in the engine oil pan is insufficient, the friction between bearing and journal will lead to poor lubrication due to the small amount of oil, which will aggravate the degree of wear, and even cause the bearing bush burning accident.
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