The ignition controller, commonly known as the ignition module, controls the operation of the automobile ignition coil. According to the instruction of engine management system ECU, the ignition coil can be ignited at the specified time and under the corresponding working conditions. Some ignition modules also provide feedback signals to ECU. It is used for ECU to judge whether the ignition coil works normally, and the feedback signal is used for ECU to calculate the pulse width of the next conduction.

The ignition module is actually a power electronic switch. The signal used to control ignition is a square wave or a magnetic pulse signal. Letter to the ignition module

Digital input. The power electronic switch is driven by shaping.

There are two combinations of ignition module and coil: one is the integration of ignition module and ECU. The power supply unit for controlling the ignition of the ignition coil is on the ECU. There is no ignition module on the ignition coil; The other is the combination of ignition module and ignition wire, which has two forms: integrated and split. The ECU only gives control signals.