Power transmission apparatus for hybrid vehicle
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorShogo Oki
Life of this patent
Estimating the term…
Abstract
A power transmission apparatus includes a first one-way clutch disposed between a motor output shaft of an electric motor and a primary shaft, and a second one-way clutch disposed between an output transmission shaft coupled to a drive wheel and the motor output shaft. Using the motor output shaft as a reference, the two one-way clutches transmit torque in a single direction and do not transmit torque in the opposite direction. The one-way clutches are not operated using oil pressure, while power is not transmitted in a single direction in accordance with a torque magnitude. Therefore, a plurality of torque transmission paths are formed in the power transmission apparatus without the need for an oil pressure supply.
Claims6
A power transmission apparatus for a hybrid vehicle that transmits an engine output and a motor output to a drive wheel, the power transmission apparatus comprising:
- a shift mechanism having a transmission input shaft coupled to an engine output shaft and a transmission output shaft to which a rotation of said transmission input shaft is transmitted after being shifted via a power transmission element;
- a first one-way clutch disposed between one end portion of a motor output shaft of an electric motor and said transmission input shaft in order to transmit torque in a single direction between said motor output shaft and said transmission input shaft;
- and
- a second one-way clutch disposed between an output transmission shaft coupled to said drive wheel and the other end portion of said motor output shaft in order to transmit torque in a single direction between said motor output shaft and said output transmission shaft,
- wherein a plurality of torque transmission paths are formed between said electric motor and said drive wheel by said two one-way clutches.
Dependencies are inferred from the claim text.