Structure for improving idling knocking abnormal sound of ISG hybrid power car

The invention discloses a structure for improving idling knocking abnormal sound of an ISG hybrid power car. The structure comprises a dual mass flywheel, an ISG motor rotor assembly and a CVT input shaft. The dual mass flywheel, the ISG motor rotor assembly and the CVT input shaft are connected in series through two pairs of spline structures to transmit power of an engine to a CVT. Diaphragm springs are arranged between the dual mass flywheel and the ISG motor rotor assembly, one ends of the diaphragm springs are welded to an ISG motor rotor end face, the middles of the diaphragm springs abut against a dual mass flywheel end face and can slide relative to the dual mass flywheel, and the other ends of the diaphragm springs abut against the ISG motor rotor end face. The structure can lower the knocking abnormal sound of idling splines on the premise of not affecting other properties.