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Anonymous users2024-02-07The function of the camshaft position sensor is to collect the position signal of the valve camshaft and input it into the ECU.
This allows the ECU to identify the cylinder compression top dead center for sequential injection control, ignition time control and deflagration control. In addition, the camshaft position signal is used to identify the first moment of ignition when the engine is started.
Because the camshaft position sensor is able to identify which cylinder piston is about to reach the top dead center, it is called a cylinder recognition sensor.
Characteristics of photoelectric structure.
The photoelectric crankshaft and camshaft position sensor produced by Nissan is an improved distributor, which is mainly composed of a signal disc (i.e., signal rotor), a signal generator, a power distributor, a sensor housing and a wiring harness plug.
The signal disc is the signal rotor of the sensor, which is press-fitted on the sensor shaft. At the edge of the signal disk, two circles of light transmission holes are made with evenly spaced arcs.
Among them, the outer ring is made of 360 light transmission holes (gaps), and the interval arc is 1. (The translucent aperture accounts for 0 5.) , the shading aperture accounts for 0 5. It is used to generate crankshaft rotation angle and speed signals; The inner ring is made of 6 translucent holes (rectangular l) with an interval of 60 arcs. , is used for generating the top dead center signal of each cylinder, wherein there is a rectangular wide side slightly longer, and is used for generating the top dead center signal of cylinder 1.
The signal generator is fixed on the sensor housing, which is composed of a NE signal (speed and angle signal) generator, a G signal (top dead center signal) generator and a signal processing circuit. Both the NE and G signal generators consist of a light-emitting diode (LED) and a phototransistor (or photodiode), with the two LEDs facing each other.
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Anonymous users2024-02-06Functions of the camshaftpositionsensor:1.
Camshaft position sensor (CPS), which collects the motion angle signal of the camshaft and inputs it into the electronic control collapse unit (ECU) to determine the ignition time and fuel injection time; 2.Camshaft position sensor is a sensing device, also known as synchronous signal sensing to make a retractor.
It is a cylinder identification and positioning device, which inputs the camshaft position signal to the ECU, and is the main control signal for ignition control.
3.The Camshaft Position Sensor (CPS) is also known as the Cylinder Recognition Sensor (CIS).
In order to distinguish it from the crankshaft position sensor (CPS), the camshaft position sensor is generally represented by CIS; 4.The function of the camshaft position sensor is to collect the position signal of the valve camshaft and input it to the ECU, so that the ECU can identify the compression top dead center of the 1 cylinder, and then control the sequential fuel injection, ignition timing and deflagration.
5.In addition, the camshaft roll position signal is used to identify the first moment of ignition when the engine is started.
Because the camshaft position sensor can identify which cylinder piston is about to reach the top dead center, it is called a cylinder recognition sensor.
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Anonymous users2024-02-05The function of the automobile camshaft position sensor: 1. The function of the camshaft position sensor is to collect the dynamic angle signal of the camshaft and input it into the electronic control unit (ECU) to determine the ignition period and the fuel injection period. This allows for intake and exhaust control.
2. The camshaft position signal can also be used to identify the first ignition timing when the engine starts. At the same time, the camshaft position sensor is also known as a cylinder recognition sensor because it is able to identify which cylinder piston reaches the top dead center. 3. The structure and working principle of the camshaft position sensor and the crankshaft position sensor are basically the same, and they are generally installed together.
However, their installation location varies from model to model and must be installed in a position that has the correct transmission relationship with the crankshaft. 4. If Duan Daiguo simply uses the crankshaft sensor to control the ECU of the EFI system, this kind of trapped combustion staring ECU will have a special procedure to distinguish the ignition sequence of the cylinder. This method is called "counting", and the crankshaft runs "1-3-4-2" at a certain rotational speed.
Therefore, one sensor is sufficient to distinguish between ignition cylinders with different angles of the same crankshaft.
The role and principle of the camshaft position sensor.
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