Study on Hybrid Electric Vehicle Noise and Vibration Reduction Technology

Abstract

The hybrid electric vehicle (HEV) is becoming one of the main trends of the development of automobile technology. The structure and operation principle of HEV are introduced. The noise and vibration (NV) of engine, motor, generator, power split device, converter assembly and battery in HEV were analyzed. According to the NV characteristics in HEV, the measurements for NV control technology such as the excitation source control technology and route control technology were summarized, which provides a reference for further studying of the NV in HEV.

Investigation on Vibration and Sound Signals From Hybrid-Engine to Electric Vehicles

“…In addition, the reduction in fuel consumption occurs when the engine is always running at the optimal engine speed. In summary, when the vehicle's energy demand is greater than the volume that the engine produces, the vehicle is supplementarily powered by an extra battery [2,4]. The driving modes of the HEV are concluded as follows.…”

“…In addition, noise, vibration, and harshness (NVH) issues affect the retina and visible objects, resulting in a blurry view of the drivers. In addition, competition in the automotive market is required to have a vehicle's acoustic and vibration dampening properties for optimal performance [4].…”