The role of the crankshaft sensor

The crankshaft sensor is usually installed in the distributor and is one of the most important sensors in the control system. Its functions are: detecting the engine speed, so it is also called a speed sensor; detecting the top dead center position of the piston, so it is also called a top dead center sensor, including detecting the top dead center signal of each cylinder used to control ignition, and used to control sequential injection The top dead center signal of the first cylinder of oil.