IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0538317
(2003-12-16)
|
등록번호 |
US-7351265
(2008-04-01)
|
우선권정보 |
IT-TO2002A1088(2002-12-16) |
국제출원번호 |
PCT/EP03/051022
(2003-12-16)
|
§371/§102 date |
20051101
(20051101)
|
국제공개번호 |
WO04/054836
(2004-07-01)
|
발명자
/ 주소 |
- Vitale,Emilio
- Frendo,Francesco
- Arnone,Luigi
- Marcacci,Maurizio
- Riggio,Giovanni
|
출원인 / 주소 |
- Universita'di Pisa
- Piaggio&C. S.p.A.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
8 |
초록
▼
A hybrid drive assembly (1) for a vehicle having at least one drive wheel (2), the drive assembly including an internal combustion engine (3); a transmission unit (5) interposed between a drive shaft (4) of the internal combustion engine (3) and a propeller shaft (6) connected angularly to the drive
A hybrid drive assembly (1) for a vehicle having at least one drive wheel (2), the drive assembly including an internal combustion engine (3); a transmission unit (5) interposed between a drive shaft (4) of the internal combustion engine (3) and a propeller shaft (6) connected angularly to the drive wheel (2), and in turn including a continuously variable transmission (7) having a drive pulley (10) connected angularly to the drive shaft (4) and a driven pulley (11), and a centrifugal clutch (8) having a hub (20) connected to the driven pulley, and a driven bell (26) connected to the propeller shaft (6); and an electric machine (32) having a rotor (35) integral with the bell (26) of the centrifugal clutch (8). The drive assembly (1) is controlled by a control unit (38), in response to a number of input signals (Ss, Sa, Sf), in a number of operating modes including an all-combustion propulsion mode, an all-electric propulsion mode, a first hybrid propulsion mode wherein the internal combustion engine (3) and the electric machine (32) are connected in series, and a second hybrid propulsion mode wherein the internal combustion engine (3) and the electric machine (32) are connected in parallel.
대표청구항
▼
The invention claimed is: 1. A hybrid drive assembly for a vehicle having at least one drive wheel, the drive assembly comprising an internal combustion engine; and a transmission unit interposed between a drive shaft of the internal combustion engine and a propeller shaft connected angularly to th
The invention claimed is: 1. A hybrid drive assembly for a vehicle having at least one drive wheel, the drive assembly comprising an internal combustion engine; and a transmission unit interposed between a drive shaft of the internal combustion engine and a propeller shaft connected angularly to the drive wheel, and in turn comprising a clutch and a transmission, having a drive element connected angularly to the drive shaft of the internal combustion engine and a driven pulley connectable to said propeller shaft; the drive assembly further including an electric machine which can be operated instead of or in combination with said internal combustion engine, characterized in that said clutch is interposed between said driven pulley of said transmission and said propeller shaft, and has a drive member connectable to said driven pulley of said transmission and a driven member connected to the propeller shaft, said electric machine comprising a rotor connected angularly and permanently to said driven member of said clutch and having a coupling interposed between said driven pulley and said drive member of said clutch. 2. A drive assembly as claimed in claim 1, characterized in that said transmission is a CVT, said drive element consists of a drive pulley. 3. A drive assembly as claimed in claim 1, characterized in that said clutch is a centrifugal clutch; said driven member of said clutch being a bell integral with said propeller shaft. 4. A drive assembly as claimed in claim 3, characterized in that said rotor of said electric machine is coaxial and integral with said bell of said clutch. 5. A drive assembly as claimed in claim 1, characterized in that said electric machine is reversible. 6. A drive assembly as claimed in claim 1, characterized by comprising an electric generator driven by said internal combustion engine. 7. A drive assembly as claimed in claim 1, characterized by comprising a control unit for controlling said internal combustion engine and said electric machine, in response to a number of input signals (Se, Sf, Ss), in a number of operating modes comprising at least a combustion mode wherein only the internal combustion engine is activated, an electric mode wherein said electric machine operates as a motor and said internal combustion engine is disabled, a parallel hybrid mode wherein said internal combustion engine and said electric machine are both activated and connected to said drive wheel, and a series hybrid mode wherein said internal combustion engine is disconnected from said drive wheel and drives said electric generator. 8. A drive assembly as claimed in claim 7, characterized by comprising selecting means for selecting said operating modes of said drive assembly; said input signals (Sa, Sf, Ss) comprising at least a number of input signals (Ss) generated by said selecting means. 9. A drive assembly as claimed in claim 7, characterized in that said input signals (Sa, Sf, Ss) comprise a signal (Sa) indicating the position of an accelerator member. 10. A drive assembly as claimed in claim 7, characterized in that said input signals (Sn, Sf, Ss) comprise a signal indicating actions on a brake control member of the vehicle. 11. A vehicle having at least one drive wheel, characterized by comprising a hybrid drive assembly as claimed in claim 1. 12. A vehicle as claimed in claim 11, characterized by being a scooter.
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