Vehicle power output device

A vehicle energy regenerating device that converts a rotational drive force of a drive shaft to electric energy, the vehicle energy regenerating device comprising:

• a first rotary electric machine having a first rotor;
• a second rotary electric machine having a second rotor;
• a first shaft that rotates in conjunction with the first rotor;
• a second shaft that rotates in conjunction with the second rotor;
• a planetary gear mechanism capable of transmitting a rotational drive force between the drive shaft and the first shaft;
• a power transmitting mechanism capable of transmitting a rotational drive force between the second shaft and the planetary gear mechanism;
• clutch means for permitting transmission of the rotational drive force from the second shaft to the planetary gear mechanism and for blocking transmission of a rotational drive force from the planetary gear mechanism to the second shaft;
• and
• a one-way clutch unit that transmits a rotational drive force of the second shaft to the power transmitting mechanism and locks motion of the power transmitting mechanism in blocking transmission of the rotational drive force from the planetary gear mechanism to the second shaft by the clutch means;
• wherein if only the first rotary electric machine is driven, a rotational drive force of the first rotor is transmitted to the drive shaft via the first shaft and the planetary gear mechanism,
• if both the first rotary electric machine and the second rotary electric machine are driven, the rotational drive force transmitted from the first rotor to the first shaft and a rotational drive force transmitted from the second rotor to the power transmitting mechanism via the second shaft and the one-way clutch unit are combined by the planetary gear mechanism to be transmitted to the drive shaft with a rotational speed increased, and
• if the drive shaft is rotated, a rotational drive force transmitted from the drive shaft to the planetary gear mechanism is transmitted to the first rotor via the first shaft without being transmitted to the power transmitting mechanism by action of the one-way clutch unit and the clutch means, to perform regeneration.

A vehicle energy regenerating device for converting a rotational drive force of a drive shaft to electric energy, the vehicle energy regenerating device comprising:

• a first rotary electric machine having a first rotor;
• a second rotary electric machine having a second rotor;
• a first shaft that rotates in conjunction with the first rotor;
• a second shaft that rotates in conjunction with the second rotor;
• a planetary gear mechanism capable of transmitting a rotational drive force between the drive shaft and the first shaft;
• a power transmitting mechanism capable of transmitting a rotational drive force between the second shaft and the planetary gear mechanism;
• and
• clutch means for permitting transmission of the rotational drive force from the second shaft to the planetary gear mechanism and blocks transmission of a rotational drive force from the planetary gear mechanism to the second shaft;
• wherein if only the first rotary electric machine is driven, a rotational drive force of the first rotor is transmitted to the drive shaft via the first shaft and the planetary gear mechanism,
• if both the first rotary electric machine and the second rotary electric machine are driven, the rotational drive force transmitted from the first rotor to the first shaft and a rotational drive force transmitted from the second rotor to the power transmitting mechanism via the second shaft and a one-way clutch unit are combined by the planetary gear mechanism to be transmitted to the drive shaft with a rotational speed increased, and
• if the drive shaft is rotated, a rotational drive force transmitted from the drive shaft to the planetary gear mechanism is transmitted to the first rotor via the first shaft without being transmitted to the power transmitting mechanism by action of the clutch means, to perform regeneration.