Photoelectric type crankshaft position sensor is installed in the distributor

Photoelectric type crankshaft position sensor is installed on the distributor, which is composed of signal generator and signal light hole plate. The signal panel and electrical axis
To rotate together, there are 360Camshaft Position Sensor lithographic gap signal disc outer ring, signal generating crank angle 1 °; a 6 light holes spaced 60 DEG are uniformly distributed within the signal generated by, crank angle 120 °, 1 of which aperture is wide, to produce a signal relative to the TDC of cylinder 1. Signal generator is arranged on the shell of distributor, is composed of two light emitting diodes, two photosensitive diode and circuit. The light emitting diode is opposite to the photosensitive Crankshaft Positioning Sensordiode. Between the signal disc is positioned on the light emitting diode and photodiode, because the light hole signal disc, the light and shade alternating phenomenon. When the beam of light emitting diode according to the photodiode, photosensitive diode voltage; when the light emitting diode beam is blocking, photosensitive diode voltage of 0. The voltage signal shaping amplification circuit part, namely to electronic control unit for conveying the crank angle is 1 ° and 120 ° signal, the electronic control unit calculates the engine speed and crankshaft position according to the signal