Abstract: There is described a device (10) for fixing accessories in a motorcycle, in particular for a windshield (14), comprising at least one shaft (12) insertable in a sleeve element (18) constrainable to a fixed component (16) of the motorcycle. A portion of shaft (12) comprises at least one elastic spacer element (20) insertable into the sleeve element (18) and actuable by reversible junction means (30) between an expanded position, in engagement within the sleeve element (18), and a rest position, extractable from the sleeve element (18).
Abstract: The present invention refers to a system and method for controlling traction in a two-wheeled vehicle comprising a torque controlled motor and a plurality of sensors for instantaneously measuring driving parameters (v, ?, ?, ?, x, a, RPM, gear) of said vehicle, the method comprising the steps of determining a reference slip value (?0) as a function of a parameter (?) representative of a torque request from a user detected by means of the plurality of sensors; estimating an instantaneous slip value (?s); determining a first component (tCL) of a requested torque signal to the motor based upon the difference between the reference slip value (?0) and the instantaneous slip value (?s); and is characterised in that the reference slip value (?0) is determined by means of a torque-slip map correlating the parameter (?) representative of a torque request with a slip (?), the map varying as a function of a longitudinal speed (v) and a rolling angle (f) of the two-wheeled vehicle detected by means of the plurality of se
Type:
Application
Filed:
May 27, 2010
Publication date:
December 9, 2010
Applicants:
PIAGGIO & C. S.P.A., POLITECNICO DI MILANO
Abstract: A motorcycle (10) is described, equipped with a rear drive wheel (12), rotatingly constrained to an oscillating arm (14) integral with the engine (16) of the motorcycle (10), at least one rear shock absorber (20), positioned between the oscillating arm (14) and the chassis (24) of the motorcycle (10), at least a first brake caliper (28) and at least a second brake caliper (32), acting on a single disc brake (36) fixed on the rim (38) of the rear drive wheel (12). The lower end (26) of the rear shock absorber (20) and the second brake caliper (32) are fixed to a plate (42) removably constrained to the oscillating arm (14) at one of its rear ends (14b). In this way, it is possible to have access to the rear drive wheel (12), and therefore remove it, without having to dismantle the second brake caliper (32) and relative transmission (34), thus facilitating the possible substitution of the wheel (12) or tire (46).
Abstract: The present invention refers to a method for controlling an electronically adjustable steering damper in a two-wheeled vehicle or motor vehicle, and to an apparatus implementing it, in which the steering damper is able to exert a damping torque on a steering assembly (45) of the two-wheeled vehicle (40) that can be adjusted according to a steering speed (s{dot over (?)}). The control method comprises the steps that consist of determining at least one controlled variable (s{dot over (?)}, s{dot over (?)}) of the two-wheeled vehicle (40) and calculating an instantaneous damping coefficient (cin(t)) of the electronically adjustable steering damper based on the at least one controlled variable (s{dot over (?)}, s{dot over (?)}) and is characterized in that the at least one controlled variable comprises a yaw rate (s{dot over (?)}) of the two-wheeled vehicle.
Type:
Application
Filed:
May 19, 2010
Publication date:
November 25, 2010
Applicants:
PIAGGIO & C. S.P.A., POLITECNICO DI MILANO
Inventors:
Sergio Matteo Savaresi, Mara Tanelli, Matteo Corno, Pierpaolo De Filippi, Stefano Rossi, Cristiano Spelta, Luca Fabbri
Abstract: Herein described is a hybrid propulsion and transmission system for a motorcycle of the type comprising at least an internal combustion engine (10) and at least one driving wheel (22). The system comprises a first electric machine (14), provided with first mechanical connection means (12) to the internal combustion engine (10), and a second electric machine (18), coupled with first electric machine (14) through electric and/or electronic connection means (16) and/or through second mechanical connection means (20), and coupled with the driving wheel (22) through second mechanical connection means (20).
Type:
Application
Filed:
March 10, 2008
Publication date:
April 15, 2010
Applicant:
Piaggio & C.S.P.A.
Inventors:
Federico Martini, Alessandro Caleo, Luca Carmignani, Paolo Capozzella
Abstract: Four-wheeled vehicle (1) of the type equipped with two steered front wheels (2, 3), a frame (13), handlebars (16), two rear wheels (4, 5) and a front suspension group (6) that acts upon the two front wheels (2, 3). The front suspension group (6) allows the rolling of the vehicle (1).
Abstract: A motorcycle (10) is described, equipped with a rear drive wheel (12), rotatingly constrained to an oscillating arm (14) integral with the engine (16) of the motorcycle (10), at least one rear shock absorber (20), positioned between the oscillating arm (14) and the chassis (24) of the motorcycle (10), at least a first brake caliper (28) and at least a second brake caliper (32), acting on a single disc brake (36) fixed on the rim (38) of the rear drive wheel (12). The lower end (26) of the rear shock absorber (20) and the second brake caliper (32) are fixed to a plate (42) removably constrained to the oscillating arm (14) at one of its rear ends (14b). In this way, it is possible to have access to the rear drive wheel (12), and therefore remove it, without having to dismantle the second brake caliper (32) and relative transmission (34), thus facilitating the possible substitution of the wheel (12) or tyre (46).
Abstract: 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).
Type:
Grant
Filed:
December 16, 2003
Date of Patent:
April 1, 2008
Assignees:
Universita'di Pisa, Piaggio&C. S.p.A.
Inventors:
Emilio Vitale, Francesco Frendo, Luigi Arnone, Maurizio Marcacci, Giovanni Riggio
Abstract: Selective actuation device (1) including an actuator (5) operating on an actuation mechanism (2). The mechanism (2) is equipped with at least one shaft (7) connected to a pusher element (8) to actuate a first operating group (12, 13) and with a rotating element (53) that moves between an activation mode, in which said element (53) acts on a second operating group (9, 10), and a rest mode where the activation of the first operating group (12, 13) is disengaged by the second operating group (9, 10).
Abstract: Four-wheel electric-drive rolling vehicle (10) with front steering wheels (11) connected to a chassis (12) by means of an articulated quadrilateral front suspension group (15) and rear wheels (14) connected to said chassis (12) by means of independent, longitudinal arm suspensions (16), comprising at least a pair of electric driving motors (21), an electric motor for each of the front wheels (11) respectively, and/or an electric motor for each of the rear wheels (14), said motors (21) being fed by at least one electric accumulator group (22), through electric wire connections and at least one control board (23).
Abstract: Electronic control system for an actuation device of operating groups of a vehicle comprising an electronic gearcase that allows the activation and deactivation of said at least one device to be managed. The gearcase defines a first operating condition of the selective actuations defined as rest, a second condition defined as block and a third condition defined as transitional, which is a passage step between the other two conditions.
Abstract: Anti-rolling device (1) for vehicles of the type equipped with a front steer system with articulated quadrilateral structure (41, 42, 37, 36) and with two independent front suspensions (34, 35). The device has at least one stop element (2), integral with an element of the quadrilateral structure in its rolling movements, at least one locking element (3), to lock the position of the stop element (2), preventing the rolling movements of the quadrilateral structure (41, 42, 37, 36), and a parking group (4), guided by command means (20), to command the opening or closing of the locking element (3).
Abstract: Two-wheel vehicle (10) with an integral electric wheel-drive characterized in that it comprises two electric driving motors, a front wheel electric motor (11) and a back wheel electric motor (12) respectively, fed by at least one electric accumulator group.
Abstract: Stroke stop device (1) for the suspensions of a vehicle of the type provided with at least one shock absorber (2) equipped with a first (3) and second (4) portion that can slide relatively. The device also comprises a pin element (44) integral with the first portion (3) of the shock absorber (2) and able to slide with respect to a caliper element (45) integral with the second portion (4) of the shock absorber (2). The caliper element (45) can be actuated closed to lock the sliding of the pin element (44) and to stop the stroke of the shock absorber (2).
Abstract: Selective actuation device (1) comprising and actuator (5) acting upon an actuation lever (7) that has at least one thrusters element (7b) for the actuation of a first operating group (12, 13) and a cam element (6) mobile between an activation position in which it acts upon a second operating group (9, 10) and a rest position in which the activation of the first operating group (12, 13) is disassociated from the second operating group (9, 10).