Vehicle Drive Device
AssigneeHitachi, Ltd.
InventorsDaisuke YAMAMOTO, Kyugo Hamai
Life of this patent
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Abstract
A vehicle drive device with a simple parts construction and improved maintainability is to be provided. Power of an internal combustion engine 10 as a first drive source is transmitted to a differential gear of a drive force transducer 40 by a propeller shaft 30. Power of an electric motor 50 as a second drive source is transmitted to the differential gear of the driving force transducer 40. The electric motor 50 is constituted separately from the differential gear. A rotor shaft of the electric motor 50 is disposed in an area opposite to the propeller shaft and on a rear side of the differential gear. A spline bearing S1 is used as means for connecting and engaging the electric motor 50 with the differential gear.
Claims9
A vehicle drive device mounted on a hybrid vehicle wherein power transmitted from a first drive source through a propeller shaft and power transmitted from a second drive source are distributed to right and left shafts through a differential gear to drive right and left wheels, said vehicle drive device comprising:
- at least one electric motor which constitutes said second drive source;
- and
- a connecting mechanism for connecting between an output shaft of said electric motor and an input shaft of said differential gear;
- said electric motor being provided as a separate component from said differential gear and disposed in an area opposite to said propeller shaft and on a rear side of said differential gear.
A vehicle drive device mounted on a hybrid vehicle wherein power transmitted from a first drive source through a propeller shaft and power transmitted from a second drive source are distributed to right and left shafts through a differential gear to drive right and left wheels, said vehicle drive device comprising:
- at least one electric motor which constitutes said second drive source;
- and
- a connecting mechanism for connecting between an output shaft of said electric motor and an input shaft of said differential gear;
- said electric motor being provided as a separate component from said differential gear and disposed on a rear side of said differential gear.
A vehicle drive device mounted on a hybrid vehicle wherein power transmitted from a first drive source through a propeller shaft and power transmitted from a second drive source are distributed to right and left shafts through a differential gear to drive right and left wheels, said vehicle drives device comprising:
- at least one electric motor which constitutes said second drive source;
- a connecting mechanism for connecting between an output shaft of said electric motor and an input shaft of said differential gear;
- and
- a controller for controlling electric power fed from an on-board power supply and supplying it to said electric motor to control operation of the electric motor,
- said electric motor being provided as a separate component from said differential gear and disposed on the opposite-to-propeller-shaft-side of said differential gear and more rearward in the vehicle than axles of said wheels.
Dependencies are inferred from the claim text.