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US 9,032,825 B2Granted
Vehicle driving system
AssigneeHonda Motor Co., Ltd.
InventorsShinichi Okubo, Takayuki Kishi
Life of this patent
Estimating the term…
Abstract
A reverse gear set, which is adapted to be connected to a second input shaft and to be connected selectively to a first input shaft via a third switching unit, is provided in a transmission of a vehicle driving system, whereby a reverse driving can be implemented by rotating the first input shaft in a reverse direction to a direction in which the first input shaft rotates for a forward driving using the power of at least one of an engine and a motor, and plural gear of an odd-numbered gear train can be selected by first switching units.
Claims7
A vehicle driving system comprising:
- an internal combustion engine;
- an electric motor;
- and
- a transmission mechanism comprising:
- a first input shaft which is connected to the electric motor and which is connected selectively to the internal combustion engine via a first engaging and disengaging means;
- a second input shaft which is connected selectively to the internal combustion engine via a second engaging and disengaging means;
- an output shaft which outputs power to a driven portion;
- a first gear train which is disposed on the first input shaft and which is made up of a plurality of gears which are connected selectively to the first input shaft via a first switching unit;
- a second gear train which is disposed on the second input shaft and which is made up of a plurality of gears which are connected selectively to the second input shaft via a second switching unit;
- and
- a third gear train which is disposed on the output shaft and which is made up of a plurality of gears which mesh with the gears of the first gear train and the gears of the second gear train, wherein:
- a reverse gear set is provided in the transmission mechanism which is connected to the second input shaft and which is connected selectively to the first input shaft via a third switching unit;
- and
- a reverse driving can be implemented by rotating the first input shaft in a reverse direction to a direction in which the first input shaft rotates to implement a forward driving by means of power of the internal combustion engine that is transmitted via the reverse gear set or by means of power of the electric motor,
- wherein the plurality of gears of the first gear train are selectable by the first switching unit when the reverse driving is implemented by the internal combustion engine.
12 more elements
Dependencies are inferred from the claim text.