In-vehicle sound quality self-adapting active control system and method

The present invention discloses an in-vehicle sound quality self-adapting active control system and method. The in-vehicle sound quality self-adapting active control system is composed of a sound quality self-adapting active controller (1), a residual noise signal collector (2), a secondary sound source device (3) and a vibration signal collector (4). The residual noise signal collector (2), the secondary sound source device (3) and the vibration signal collector (4) are respectively connected with the sound quality self-adapting active controller (1) electrically. The invention forms a closed-loop feedforward in-vehicle sound quality control system which uses an engine body (27) and five acceleration signals at the suspending point of vehicle body as input, the sound signal output from the secondary sound source device (3) and two residual noise signals as feedback. The invention also provides a self-adapting active control method which tracks the in-vehicle noise change with a self-adapting mode when the driving behavior of vehicle changes and selectively controls the different frequency-band noises which affects the in-vehicle sound quality.