Drive mode optimized engine order cancellation

An engine order cancellation (EOC) system comprising:

• at least one controllable filter configured to generate an anti-noise signal based on an adaptive transfer characteristic and a noise signal received from a noise signal generator, the adaptive transfer characteristic of the at least one controllable filter characterized by a set of filter coefficients;
• an adaptive filter controller, including a processor and memory, programmed to:
• store a set of EOC tuning parameters for each of a plurality of vehicle drive modes, each set of EOC tuning parameters differing between vehicle drive modes;
• apply the set of EOC tuning parameters corresponding to a current vehicle drive mode;
• and
• adapt the set of filter coefficients based on the noise signal and an error signal received from a microphone located in a cabin of a vehicle;
• and
• a drive mode detector in communication with at least the adaptive filter controller, the drive mode detector including a processor and memory programmed to:
• receive at least one signal indicative of vehicle operating conditions, wherein the at least one signal indicative of vehicle operating conditions is indicative of transmission gear state;
• analyze the at least one signal to determine the current vehicle drive mode;
• and
• transmit a drive mode signal indicative of the current vehicle drive mode to the adaptive filter controller.

A method for dynamically targeting dominant engine orders for active noise cancellation in an engine order cancellation (EOC) system based on vehicle drive mode, the method comprising:

• storing a set of dominant engine orders for each of a plurality of vehicle drive modes, each set of dominant engine orders differing between vehicle drive modes, wherein each of the plurality of vehicle drive modes corresponds to a different state of a vehicle transmission;
• receiving at least one signal indicative of vehicle operating conditions;
• detecting a current vehicle drive mode based on the at least one signal;
• selecting the set of dominant engine orders corresponding to the current vehicle drive mode;
• and
• applying noise cancellation to each engine order in the set of dominant engine orders corresponding to the current vehicle drive mode.