Analysis and Control Research of Noise and Vibration of Hybrid Electric Vehicles

hybrid electric vehicle system is helpful to reduce the emission of energy, which can promote the development of China's new-energy vehicles, but the more complex the automobile structure, the higher control requirements the automobile noise. In order to get a better environment, the noise and vibration of hybrid electric vehicle should be analyzed and controlled. Through the study of acoustics and the vibration theory, the method of sound intensity measurement was used, and the LMS system was used to carry out the road test. Then the identification and propagation path of the interior noise sources were analyzed. The noise source propagation model simplified by the experimental results was constructed, and we could know that the highest value was the rear suspension from the analysis results.