THREE-WHEELED TILTING VEHICLE
    52.
    发明申请

    公开(公告)号:US20220402569A1

    公开(公告)日:2022-12-22

    申请号:US17776914

    申请日:2020-11-11

    发明人: Andrea RAFFAELLI

    摘要: There is described a three-wheeled vehicle (1) with two front steered wheels and two footboards (41.1, 41.2) on which the driver stands to drive the vehicle. The footboards are supported on a tilting four-bar linkage, having a front crosspiece 27 and a rear crosspiece 33, between which two rocker arms 31.1 and 31.2 extend. The front steered wheels are supported by the rocker arms and rotate around steering axes (S.1, S.2).

    MOTOR VEHICLE WITH A SUSPENSION USING A ROBERTS FOUR-BAR LINKAGE

    公开(公告)号:US20220396332A1

    公开(公告)日:2022-12-15

    申请号:US17641323

    申请日:2020-09-04

    发明人: Andrea RAFFAELLI

    IPC分类号: B62K25/24 B62K25/00 B62K21/02

    摘要: The saddle-riding motor vehicle (1; 107; 207) comprises a rear driving wheel (5; 105; 205) and a front steered wheel (7; 107; 207). The front steered wheel (7; 107; 207X, 207Y) is connected to a rotatable arm (9; 109; 209X, 209Y) provided with a rotary motion about a steering axis (A-A). A wheel support (37; 137) is connected to the rotatable arm (9; 109; 209) with the interposition of a suspension (17; 117; 217X, 217Y) comprising a shock absorber (22; 122). The suspension (17; 117) comprises a Roberts four-bar linkage.

    INTERNAL COMBUSTION ENGINE WITH CAMSHAFT VALVE PHASE VARIATION DEVICE

    公开(公告)号:US20220298932A1

    公开(公告)日:2022-09-22

    申请号:US17641727

    申请日:2020-09-11

    发明人: Walter MARIOTTI

    IPC分类号: F01L1/344 F02D13/02 F01L1/02

    摘要: A combustion engine for a vehicle includes a first centrifugal device for varying timing of a first plurality of suction or relief valves with respect to the drive shaft. A driving disc is mounted idle on a first camshaft which controls the valves, and at least one driven disc is integral with the camshaft. Drive elements for transmitting motion from the driving disc to the driven disc are interposed between the two discs causing a relative rotation of the driven disc with respect to the driving disc when the rotation speed of the discs exceeds a predetermined threshold. A distribution system connects the drive shaft with the driving disc so as to cause the rotation thereof. A second gear meshes with a first gear so that rotation of the driving disc mounted on the first camshaft causes the rotation of the second camshaft to control other valves of the engine.

    High performance synchronous transmission

    公开(公告)号:US11421757B2

    公开(公告)日:2022-08-23

    申请号:US16465060

    申请日:2017-12-01

    摘要: A synchronous transmission (1) for a motorcycle comprises a primary shaft (51) of mechanical gearbox, and a pair of secondary shafts (52, 53) equipped with one or more secondary gearwheels for transmitting the motion to a hub shaft (75), wherein a desmodromic drum (70) actuates a pair of coupling forks (67, 68) selectively defining the position of respective sliding couplings (65, 66) between primary (51) and secondary shafts (52, 53) to select all speeds of the transmission, the desmodromic drum (70) being in phase with a device (80) for actuating the gearwheels, and wherein the coupling forks (67, 68) are equipped with a cam follower end (69) maneuvered by said desmodromic drum (70) having a cylindrical surface (79) whereon a single desmodromic track (19) is formed.

    Forecarriage of a rolling motor vehicle with roll block

    公开(公告)号:US11420702B2

    公开(公告)日:2022-08-23

    申请号:US16472313

    申请日:2017-12-20

    发明人: Andrea Raffaelli

    摘要: Forecarriage of a rolling motor vehicle including a forecarriage frame, a pair of front wheels, a roll control system comprising a rod having including a first damper device for dampening rotation movements of the rod, and including a kinematic connecting rod-crank connected to the rod and to a first anchoring portion to define an articulated quadrilateral, an actuator for imparting a shift movement to the rod-crank and to vary the configuration of the rod-crank between: a damped rolling configuration and a rolling configuration, where the first damper device further includes release means to assist the actuator in the passage from the damped rolling configuration to the free rolling configuration.

    CONTROL SYSTEM OF A RIDEABLE SADDLE VEHICLE PROVIDED WITH ELECTRIC DRIVE

    公开(公告)号:US20220209692A1

    公开(公告)日:2022-06-30

    申请号:US17605173

    申请日:2020-04-22

    IPC分类号: H02P6/17 H02P6/18 H02P6/08

    摘要: The present invention relates to a rideable saddle vehicle (200) comprising: an electric traction motor (1) which includes a stator and rotor; a first vehicle speed measurement sensor configured to generate a first signal (6.1) which is characteristic of the vehicle speed; a control system of the vehicle comprising; a first unit (2) for supplying and controlling said electric motor (1), wherein said first unit (2) supplies and controls said electric motor (1) on the basis of a control signal (5.1), said control signal (5.1) being characteristic of the torque required to said electric motor (1); a computing unit (20) configured to generate a second signal (7.1) which is characteristic of the speed of the vehicle, wherein said computing unit (20) comprises first computing means (4) configured to calculate the angular position of said rotor with respect to said stator on the basis of the counter-electromotive force produced by said electric motor (1), and wherein said second signal (7.1) is generated on the basis of the value of said position calculated by said computing means (4); wherein said control signal (5.1) is generated on the basis of a torque signal (8) and on the basis of said first signal (6.1) and/or said second signal (7.1) which are characteristic of the speed of said vehicle.

    TILTING MOTOR VEHICLE WITH TILTING LOCKING DEVICE

    公开(公告)号:US20220135169A1

    公开(公告)日:2022-05-05

    申请号:US17602149

    申请日:2020-04-01

    发明人: Andrea RAFFAELLI

    摘要: The motor vehicle (1) comprises at least one rear driving wheel (5) and two front steered wheels (7′, 7″). A tilting four bar linkage (11) allows the motor vehicle to perform a tilting movement, for example, when cornering. Support arms (21′, 21″) for front steered wheels (7′, 7″), which rotate around steering axes (21A′, 21A″) and are joined to each other by a steering bar (23), are associated with the tilting four bar linkage Each wheel is constrained to the respective support arm with the interposition of a suspension (33; 33″). A tilting locking device comprises a brake (53′, 53″) which locks the springing movement of the respective suspension and the tilting movement of the four bar linkage.