High power low voltage electrified powertrain

A high power, low voltage electrified powertrain, for an electrified vehicle, the electrified powertrain comprising:

• a single electric motor having four or more coils corresponding to four or more alternating current (AC) phases, wherein the single electric motor is the only electric motor of the electrified powertrain that is configured to generate drive torque that is sufficient to propel the electrified vehicle;
• and
• a low voltage electrical system comprising:
• four or more independent battery modules each configured to output a separate low direct current (DC) voltage;
• and
• a single power inverter module (PIM) configured to:
• receive each of the separate low DC voltages from the battery modules;
• generate (i) a separate low AC voltage for each AC phase using the separate low DC voltages or (ii) a separate low AC voltage for each AC phase using fewer than all of the separate low DC voltages;
• and
• output the separate low AC voltages to the coils of the electric motor to drive the electric motor to generate the drive torque that is sufficient to propel the electrified vehicle,
• wherein none of the separate low DC voltages are electrically isolated,
• wherein the single electric motor is approximately a 100 kilowatt electric motor capable of receiving up to 250 amperes of current.

A high power, low voltage electrified powertrain, for an electrified vehicle, the electrified powertrain comprising:

• a single electric motor having four or more coils corresponding to four or more alternating current (AC) phases, wherein the single electric motor is the only electric motor of the electrified powertrain that is configured to generate drive torque that is sufficient to propel the electrified vehicle;
• and
• a low voltage electrical system comprising:
• four or more independent battery modules each configured to output a separate low direct current (DC) voltage;
• and
• a single power inverter module (PIM) configured to:
• receive each of the separate low DC voltages from the battery modules;
• generate (i) a separate low AC voltage for each AC phase using the separate low DC voltages or (ii) a separate low AC voltage for each AC phase using fewer than all of the separate low DC voltages;
• and
• output the separate low AC voltages to the coils of the electric motor to drive the electric motor to generate the drive torque that is sufficient to propel the electrified vehicle,
• wherein none of the separate low DC voltages are electrically isolated,
• wherein the sum of the separate low DC voltages is approximately 400 volts DC.