Automobile electronic control unit circuit pulse fault simulation device

The utility model provides a pulse fault simulation device for an automobile electric control unit circuit. The pulse fault simulation device comprises a power supply module, a pulse signal setting module, a single-chip microcomputer heuristic development board, a pulse signal driving module, a resistance signal setting module, a pulse mode control switch and a resistance mode control switch. Thepulse signal setting module provides a frequency potentiometer signal, a duty ratio potentiometer signal, a high-voltage potentiometer signal and a low-voltage potentiometer signal respectively and inputs the signals to an analog-to-digital converter input interface of the single-chip microcomputer heuristic development board. The utility model relates to an automobile electric control unit circuit pulse fault simulation device. The pulse signal setting module, the single-chip microcomputer enlightenment development board, the pulse signal driving module and the resistance signal setting module are used in cooperation