Noise reduction system for vehicles using piezoelectric device and method for reducing vehicle noise using the same

摘要

Provided is a vehicle noise reduction system for reducing road noise and a vehicle noise reduction method using the same. The vehicle noise reduction system includes: a piezoelectric element installed in a suspension of a vehicle to sense a road surface condition while driving; A piezoelectric energy collection unit that stores electric power generated by the piezoelectric element; A noise sensing unit that measures noise in the vehicle cabin while driving the vehicle; And an anti-noise generator that generates anti-noise that interferes with noise when the voltage measured by the piezoelectric element is greater than or equal to a predetermined threshold (Vc).