Adaptive E-Drive Operation for Electrified Vehicle

A system, comprising:

• at least one digital processor;
• and
• a computer-readable medium operatively coupled to said at least one digital processor;
• having stored thereon logic for sequences of instructions for said digital processor, the sequences of instructions, when executed by said digital processor, cause the processor to select a pulse width modulation (PWM) operational mode based on vehicle state input.

A method for designating a pulse width modulation (PWM) parameter, comprising:

• a pulse width modulation (PWM) frequency adaptation mechanism (PFAM) determining whether a vehicle window is open, and in response to an open window, selecting a default mode and concluding said method, otherwise continuing with said method;
• said PFAM determining whether a vehicle air conditioner is operating, and in response to an operating air conditioner, selecting said default mode and concluding said method, otherwise continuing with said method;
• said PFAM determining whether a vehicle radio is turned on, and in response to an on state for said radio, selecting said default mode and concluding said method, otherwise continuing with said method;
• said PFAM determining whether a vehicle is in a drive mode, and in response to a vehicle not being in a drive mode, selecting said default mode and concluding said method, otherwise continuing with said method;
• said PFAM determining whether said vehicle is accelerating or decelerating, and in response to said vehicle accelerating or decelerating, selecting a noise reduction mode and concluding said method, otherwise continuing with said method;
• said PFAM determining whether said vehicle is moving at a low speed, and in response to said vehicle not moving at a low speed, designating said default mode and concluding said method, otherwise proceeding with said method;
• and
• said PFAM determining whether an electric drive system (EDS) of said vehicle is heavily loaded, and in response to said EDS being heavily loaded, selecting a loss reduction mode, and in response to said EDS not being heavily loaded selecting a noise reduction mode.