Active noise cancellation for a vehicle induction system with selectable modelling noise

摘要

An active noise cancellation system is operative to reduce noise transmission through a vehicle air induction system. The active noise cancellation system includes a controller that utilizes computer modelling to ensure adequate noise cancellation. The controller generates a modelling sound to make determinations regarding the noise cancellation system, such as timing constraints associated with a speaker or microphone of the system. The modelling sound is selected to be consistent with a sound typically heard by an individual, given the current engine operating status. In another example, the selected sound masks another modeling sound such as random noise.