Method and device for detecting the interruption of the voltage supply of an ignition coil

摘要

A method for detecting an interruption of the voltage supply of an ignition coil,a primary winding (2) of the ignition coil (1) to a supply voltage source (v1) is connected,characterized by the,that the momentary value of the on the primary winding (2) applied voltage (v) with the aid of a sensor line (6) which is provided between the primary winding (2) and the supply voltage source (v1) is connected, is detected, evaluated and at least two value ranges (a, b) is assigned, wherein a first value range (a) a normal state, without any interruption of the voltage supply and a second value range (b) a fault condition with interruption of the voltage supply of the ignition coil (1) corresponds to.