Crankshaft position sensor
The role of the crankshaft position sensor is to determine the position of the crankshaft, which is the corner of the crankshaft. It usually works with the camshaft position sensor - determining the basic ignition timing. We all know that the engine starts to ignite at the end of the compression stroke. How does the engine computer know which cylinder should be ignited? It is calculated by the signals of the crank position sensor and the camshaft position sensor. Through the crank position sensor, it can be known which cylinder piston is at the top dead center. Through the camshaft position sensor, it can be known which cylinder piston is in the compression stroke. In this way, the engine computer knows when to fire which cylinder.