关键词: 混合动力；双电机；启机；异响；clunk

Abstract: The automotive industry is currently vigorously developing towards new energy, but the limitations of batteries have led to hybrid vehicles becoming the mainstream product in the market for a long time to come. In response to the problem of abnormal gear knocking noise in the current dual motor hybrid vehicle model, this article mainly discusses the generation mechanism and solutions. In the future, reference can be made to the solutions for abnormal starting noise described in this article to improve the quality of starting. Through research on the inertia, cylinder pressure, damping, and control strategy of the dual motor hybrid system, identify the impact of various factors on the issue of abnormal starting noise, and develop reasonable optimization and solutions based on various factors. By matching the system inertia, calibrate the strategy, the starting quality of a certain model of Hongqi has reached an industry-leading level.

Key words: hybrid; dual motor; starting; abnormal sound; clunk