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    • 4. 发明公开
    • A SADDLE-RIDE TYPE VEHICLE COMPRISING A CLUTCH ASSEMBLY AND A CONTROL DEVICE FOR SAID CLUTCH ASSEMBLY
    • US20230279910A1
    • 2023-09-07
    • US18019834
    • 2021-08-03
    • Piaggio & C. S.p.A.
    • Romano AlbesianoWalter ScattolinFrancesco Grisotolo
    • F16D48/06
    • F16D48/066F16D2500/1026F16D2500/10412F16D2500/1045F16D2500/1117F16D2500/70426F16D2500/70406F16D2500/31406F16D2500/31466F16D2500/70404
    • The present invention relates to a saddle-ride type vehicle comprising a clutch assembly (4), interposed between an engine (2) and a gearbox (3), which includes a clutch device (11) in turn comprising two clutch elements (one integral with the shaft of the engine and the other with the input shaft of the gearbox) and return means (12) that keep these elements (11A, 11B) in contact in a closure condition of the clutch. According to the invention, the clutch assembly (4) further comprises an operating device (21) of the clutch device that causes detachment of the elements (11A, 11B) of the clutch device up to an opening condition of the clutch assembly. This latter further comprises a control device (6) to limit the torque peaks during gear change. This device comprises an actuation means (5) that, during gear change, exerts a predetermined force (S) in contrast to the force exerted by said return means (12) of the clutch assembly, wherein said predetermined force (S) is less than the force (F) generated by the return means (12) so as to cause a mutual slip of the elements (11A, 11B) of the clutch device (11) without said opening condition being reached. The operating device (21) is of hydraulic type and comprises a primary pump (22) operated by means of a control lever (23), wherein this primary pump (22) is hydraulically connected, through a primary hydraulic circuit (16), to a primary piston (24) acting on at least one of the elements (11A, 11B) of the clutch device (11) in opposition to the return means (12) so that, following an action on the control lever (23), the primary piston (24) exerts an action the elements (11A, 11B) determining the opening condition. According to the invention, the control device (6) comprises a secondary piston (25) connected to the primary piston (24), wherein the actuation means (5) exerts, directly or indirectly, the predetermined force (S) on the secondary piston (25), said predetermined force (S) being transferred to the primary piston (24) in opposition to the force (F) of the return means (12).
    • 9. 发明授权
    • Electric drive motorcycle
    • US11305840B2
    • 2022-04-19
    • US16761124
    • 2018-10-30
    • PIAGGIO & C. S.P.A.
    • Luca CarmignaniPaolo CapozzellaJury CantiniWalter Mariotti
    • B62M23/02B62J1/12B62K19/46B62J43/16B62J43/20B62M7/06B62M7/08
    • An electric drive motorcycle (100) allows a suitable and effective cooling of the battery unit when the electric motor is operated, and comprises: a front portion comprising one or more front wheels (103) and a handlebar (104); a rear portion comprising a saddle (101), a shell body (107) arranged below said saddle (101), and a rear wheel (105) arranged below said shell body (107); an intermediate portion extending as a connection between said front portion and said rear portion; an electric drive unit (8) connected to said rear wheel (105); and a hybrid supply unit supplying said electric drive unit (8), comprising at least a battery unit (115) and a combustion engine (116) actuating an electric generator (120) apt to feed said battery unit (115) and/or said electric drive unit (8), wherein the combustion engine (116) drives a cooling fan (121) arranged so that, when this is drawing a flow of cooling air through an inlet mouth (122), such flow wets the battery unit (115), before being drawn, wherein the combustion engine (116) comprises a crankshaft which is arranged transversally to said front-rear direction, said crankshaft having a first end keyed to an electric generator (120) arranged adjacent to the wall of the shell body (107), and a second end thereto said cooling fan (121) is keyed, and wherein the sucking mouth (122) of the cooling fan (121) is faced towards the battery unit (115).