Power supply system for vehicle with improved energy efficiency and vehicle including the same

A vehicle comprising a power supply system for a vehicle, wherein

• said power supply system for a vehicle includes:
• a first rotating electric machine capable of generating first m-phase AC power upon receiving mechanical power from an internal combustion engine, where m-phase represents a natural number which is at least 3,
• a second rotating electric machine driving a wheel upon receiving second m phase AC power equal to said first m-phase AC power in number of phases, and
• a matrix converter converting said first m-phase AC power and outputting resultant AC power as at least a portion of said second m-phase AC power,
• said matrix converter includes m×m switching elements connected between each of m-phase outputs of said first rotating electric machine and each of m-phase inputs of said second rotating electric machine, and
• said vehicle further includes
• a battery;
• an inverter converting DC power obtained from said battery and outputting resultant power as at least a portion of said second m-phase AC power;
• a first switch electrically connecting said battery to said inverter;
• and
• a control unit controlling power conversion by said matrix converter and controlling opening and closing of said first switch in association with a state of power conversion by said matrix converter.

A power supply system for a vehicle, comprising:

• a first rotating electric machine capable of generating first m-phase AC power upon receiving mechanical power from an internal combustion engine, where m represents a natural number which is at least 3;
• a second rotating electric machine driving a wheel upon receiving second m-phase AC power equal to said first m-phase AC power in number of phases;
• a matrix converter converting said first m-phase AC power and outputting resultant AC power as at least a portion of said second m-phase AC power, said matrix converter including m×m switching elements connected between each of m-phase outputs of said first rotating electric machine and each of m-phase inputs of said second rotating electric machine;
• a battery;
• an inverter converting DC power obtained from said battery and outputting resultant power as at least a portion of said second m-phase AC power;
• and
• a control unit controlling power conversion by said matrix converter and controlling said inverter in association with a state of power conversion by said matrix converter.

A vehicle comprising a power supply system for a vehicle, wherein

• said power supply system for a vehicle includes:
• a first rotating electric machine capable of generating first m-phase AC power upon receiving mechanical power from an internal combustion engine, where m-phase represents a natural number which is at least 3,
• a second rotating electric machine driving a wheel upon receiving second m phase AC power equal to said first m-phase AC power in number of phases, and
• a matrix converter converting said first m-phase AC power and outputting resultant AC power as at least a portion of said second m-phase AC power,
• said matrix converter includes m×m switching elements connected between each of m-phase outputs of said first rotating electric machine and each of m-phase inputs of said second rotating electric machine, and
• said vehicle further includes
• a battery;
• an inverter converting DC power obtained from said battery and outputting resultant power as at least a portion of said second m-phase AC power;
• and
• a control unit controlling power conversion by said matrix converter and controlling said inverter in association with a state of power conversion by said matrix converter.