Tamper detection method and device for knock sensor, electronic equipment and storage medium

The invention provides a tampering detection method and device for a knock sensor, electronic equipment and a storage medium. The method comprises the steps that a vehicle characteristic signal is defined according to a first crank angle window of an engine; acquiring a current vehicle working condition; acquiring a current characteristic signal of the vehicle according to the current vehicle working condition; determining a signal deviation between the current characteristic signal and a reference characteristic signal; whether the signal deviation is lower than a preset minimum limit value or not is judged, and if the signal deviation is lower than the preset minimum limit value, the duration when the signal deviation is lower than the preset minimum limit value is obtained; and if the duration when the signal deviation is lower than the preset minimum limit value reaches the preset duration, determining that the knock sensor has a tampering fault. The technical problem that in the prior art, only the situa