YLE Camshaft Position Sensor Photoelectric crankshaft position sensor signal from the signal generator and the composition of the disk with a light hole

Photoelectric crankshaft position sensor is generally installed in the distributor , the signal from the signal generator and the composition of the disk with a light hole . Its YLE Crankshaft Positioning Sensor signal plate together with the distributor shaft rotation , the signal plate outer ring 360 lithography gap , generating a signal of 1 ° crank angle ; slightly inside there are six intervals 60 ° aperture cloth , producing a crank angle of 120 ° signal, wherein an aperture is wider, with respect to cylinder 1 TDC signal is generated . The signal generator is mounted on the distributor housing , the two light-emitting diodes , photodiodes and the second circuit only . Light-emitting diodes facing the photodiode. Signal plate located between the light-emitting diodes and photodiodes , because the signal plate light hole , the resulting alternating transparent and blackout phenomenon . When the beam of light emitting diodes photodiode , the photodiode YLE Crankshaft Positioning Sensor generates a voltage ; when the LED light is live file , the photodiode voltage is 0 . The voltage signal amplified by the shaping circuit portion , namely the electronic control unit crank angle signal transport , the electronic control unit 1 ° and 120 ° when the engine rotational speed calculated based on these signals and crankshaft position