The invention discloses an automatic
verification system for the performance of an insulation monitoring module. The automatic
verification system comprises a power supply module, a resistance-
capacitance module, a CAN communication module and an MCU control module, wherein the resistance-
capacitance module comprises a plurality of resistors, a plurality of capacitors and a plurality of
electric control switches, and is electrically connected with the insulation monitoring module, a total positive
electrode and a total negative
electrode of the high-
voltage power supply and a frame ground wire to form a test loop; the MCU control module communicates with an upper computer through the CAN communication module; and meanwhile, on-off of each
electric control switch connected with the resistance-
capacitance module is controlled, and the performance of the insulation monitoring module is verified by switching on different combinations of resistors and capacitors. The
system provided by the invention can automatically control the set
voltage, resistance and Y
capacitor to access the test loop, and can feed back to the system in a CAN communication mode after the insulation module is tested. The
verification system not only solves the problems of low manual
test efficiency and complicated process, but also can test the performance of the insulation module under the conditions of different
voltage platforms, insulation conditions and whole vehicle Y capacitance.