Driving apparatus for vehicle
A driving apparatus for a vehicle is disclosed. The driving apparatus is a device used for transmitting drive force to an output shaft. The driving apparatus includes a housing, an electric motor, a torque converter and a rotation transmitting structure. The electric motor includes a first stator fixed to the housing and a rotor configured to be rotate relative to the first stator. The torque converter transmits rotation of the rotor to the output shaft when the rotor rotates in a first rotational direction. The rotation transmitting structure transmits rotation of the rotor to the output shaft when the rotor rotates in a second rotational direction opposite to the first rotational direction.
1. A driving apparatus for a vehicle for transmitting drive force to an output shaft, the driving apparatus comprising:
a housing;
an electric motor including a first stator fixed to the housing and a rotor configured to rotate relative to the first stator;
a torque converter configured to transmit rotation of the rotor to the output shaft when the rotor rotates in a first rotational direction; and
a rotation transmitting structure configured to transmit rotation of the rotor to the output shaft when the rotor rotates in a second rotational direction opposite to the first rotational direction.
2. The driving apparatus for a vehicle according to claim 1 , wherein
the rotation transmitting structure includes a clutch unit configured to transmit rotation of the rotor to the output shaft when the rotor rotates in the second rotational direction.
3. The driving apparatus for a vehicle according to claim 1 , wherein
the rotation transmitting structure further includes a planetary gear mechanism disposed between the rotor and the output shaft, and
the planetary gear mechanism is configured to transmit rotation of the rotor to the output shaft when the rotor rotates in the second rotational direction.
4. The driving apparatus for a vehicle according to claim 1 , wherein the torque converter includes:
an impeller configured to rotate integrally with the rotor; a turbine configured to connect to the output shaft; and
a second stator configured to rotate relative to the housing.
5. The driving apparatus for a vehicle according to claim 4 , wherein
the turbine is configured to rotate integrally with the output shaft.
6. The driving apparatus for a vehicle according to claim 4 , wherein
the turbine is configured to rotate integrally with the output shaft in the first rotational direction and to rotate relative to the output shaft in the second rotational direction.
7. The driving apparatus for a vehicle according to claim 4 , further comprising:
a lockup structure configured to connect the impeller and the turbine so that the impeller and the turbine rotate integrally.
8. The driving apparatus for a vehicle according to claim 4 , wherein a case unit of the torque converter has a non-magnetic body.