Adaptive pulse width modulation overmodulation in three-phase voltage source inverters

A vehicle comprising:

• an electric motor;
• an inverter;
• data processing hardware;
• and
• memory hardware in communication with the data processing hardware, the memory hardware storing instructions that when executed on the data processing hardware cause the data processing hardware to perform operations comprising:
• receiving voltage vector command values for the electric motor operating in a linear modulation region;
• receiving system state information of the vehicle;
• determining that an overmodulation threshold is satisfied based on the system state information of the vehicle;
• based on determining that the overmodulation threshold is satisfied:
• determining a modulation factor from a modulation index;
• generating a three-phase output based on the voltage vector command values and the modulation factor, the three-phase output corresponding to the electric motor operating in an overmodulation region;
• and
• determining a plurality of control signals based on the three-phase output, each respective control signal of the plurality of control signals corresponding to a respective switch among a plurality of switches of the inverter;
• and
• instructing the plurality of switches of the inverter to control operation of the electric motor in the overmodulation region based on the plurality of control signals.