System and method for reducing inverter switching noise

A method performed by an apparatus of a vehicle, the method comprising:

• operating a primary drive inverter of the vehicle associated with a primary drive motor of the vehicle;
• measuring, using a microphone of the vehicle, switching noise caused by the primary drive inverter of the vehicle;
• determining whether a frequency of the switching noise is above a preset threshold value;
• and
• generating, based on the determining, a signal causing connection or disconnection of an auxiliary drive motor of the vehicle to or from a drive shaft of the vehicle.

An apparatus of a vehicle, the apparatus comprising:

• a processor;
• and
• a memory storing at least one instruction that is configured, when executed by the processor communicating with the memory, to cause the apparatus to:
• obtain data indicative of switching noise caused by a primary drive inverter of the vehicle, wherein the primary drive inverter is configured to control a primary drive motor of the vehicle;
• generate, based on a determination that a frequency of the switching noise is within a human-audible frequency range, a signal causing activation of an auxiliary drive motor of the vehicle;
• and
• adjust proportions of torque distributed between the primary drive motor and the auxiliary drive motor to shift the frequency of the switching noise outside the human-audible frequency range.