A vehicle of the present disclosure may include at least one pair of opposing wheels coupled to a tiltable central chassis by a four-bar linkage or the like, such that the wheels are configured to tilt in unison with the central chassis. A steering actuator and/or a tilting actuator may be discretely controllable by an electronic controller of the vehicle. The controller may include processing logic configured to maintain alignment between a median plane of the chassis and a net force vector caused by gravity and any induced centrifugal forces. Various control algorithms may be utilized to steer the vehicle along a desired path, either autonomously or semi-autonomously.

A forecarriage (8) of a rolling motor vehicle (4), comprising a forecarriage frame (16), a pair of front wheels kinematically connected to each other and to the forecarriage frame (16) by means of a first kinematic mechanism (20), each wheel being connected to said first kinematic mechanism (20) by means of a respective axle journal (60), a roll block system (100) comprising a second kinematic mechanism (110) that directly connects the two wheels to one another at the respective axle journals (60) between two connection points and can assume a free configuration in which the second kinematic mechanism (110) can passively follow the movements of the two wheels with respect to each other without interfering with them and a blocked configuration in which the second kinematic mechanism (110) can set the distance between said two points thus preventing rolling movements between the two wheels while allowing pitching and steering movements.

A forecarriage (8) of a rolling motor vehicle (4), comprising a forecarriage frame (16), at least a pair of front wheels (10), each wheel (10) being connected to a rolling kinematic mechanism (20), which enables the front wheels (10) to roll in a synchronous and specular manner, by means of a respective axle journal (60), and a roll block system (100) comprising a rod extensible in length (110) which directly connects one of the two front wheels (10) at the respective axle journal (60) to said forecarriage frame (16) by means of hinging means (71, 72, 73) at both its ends, and means (120) to reversibly block the lying position of said rod extensible in length (110) on a rolling plane with respect to said axle journal (60) and to said forecarriage frame (16), so as to block the rolling movements allowed by said rolling kinematic mechanism (20).

A motor vehicle wheel suspension, comprising a guide wheel having an outer jacket comprising a wheel attachment for the connection of the guide wheel to a rotation pin of a wheel. The guide wheel extends between opposite axial upper and lower ends in correspondence of which it comprises attachments for its connection to connection elements of an associated frame, wherein said outer jacket internally encloses a damper and a spring. The outer jacket, in correspondence of one of said axial upper and lower ends comprises a slot for realizing a first attachment to connection elements of the frame, said slot housing a pin axially guided by said slot, the slot connecting a cavity inside the outer jacket with said pin. The outer jacket, in correspondence of the other of said axial upper and lower ends comprises a tilting hinge for realizing a second attachment to connection elements of the frame.

A structure of rocking controller of a saddle riding type vehicle includes a rocking lock mechanism configured to lock lateral rocking of the vehicle body; wherein the rocking lock mechanism includes an arc shaped lock plate which crosses with an axial direction of a rocking shaft of the vehicle body and a lock caliper configured to lock a relative rocking between the lock plate and the lock caliper by clamping the lock plate, and a motor for the actuator is arranged in front of the rocking lock mechanism and the rotating drive shaft of the motor is arranged so as to penetrate an inner circumferential region of the arc shaped lock plate.

A rolling motor vehicle (4) comprising a forecarriage frame (16), at least one pair of front wheels (10), a rolling kinematic mechanism (20) to which each wheel (10) is connected by means of a respective axle journal (60), a roll control system (100) comprising a rod (110) which connects the two front wheels (10) directly to each other at the respective axle journals (60), the roll movements of the two front wheels (10) and of the respective axle journals (60) causing changes in the lying position of said rod (110) with respect to a vertical projection plane which is transverse to a centre line plane of the motor vehicle (4), the rod (110) is usable directly or indirectly by the driver (P) as a command element to control the rolling movements of the two front wheels (10) without having to put his feet on the ground.

Automatic tilting vehicle is provided that includes left and right front wheels supported by knuckles, a rear wheel steered by a steering actuator, a vehicle tilting device, and a control unit. The control unit calculates a target tilt angle of the vehicle and a target steered angle of the rear wheel based on a steering angle and a vehicle speed, controls the vehicle tilting device so that a tilt angle of the vehicle becomes the target tilt angle, and controls the steering actuator so that a steered angle of the rear wheel becomes the target steered angle. When the vehicle is turning and decelerating, a steered angle of the rear wheel is controlled not to be the target steered angle but to zero, and a tilt angle of the vehicle is reduced by a gyro moment of the rear wheel.

A suspension group for a motor vehicle, wherein said suspension group includes: a wheel guide, which extends along a longitudinal axis, which includes a wheel attachment for connection to a rotation pin of a wheel having a rotation axis orthogonal to said longitudinal axis, wherein the wheel guide extends between a first end and a second end, opposite the first end, a support arm functionally connected to the wheel guide respectively by means of: a first crank rotatably connected at said second end to the wheel guide and to the support arm; a second crank rotatably connected at said first end to the wheel guide and to the support arm, wherein the wheel guide elements, the support arm and the first and second crank define a suspension quadrilateral, wherein, between at least two of said elements chosen between the wheel guide, the support arm, the first and the second crank, a shock absorber group is interconnected in such a way that the shock absorber group varies its extension as the movement of the suspension quadrilateral varies.

Motor vehicle forecarriage (8) comprising a forecarriage frame (16), a pair of front wheels (10, 10) kinematically connected to the forecarriage frame (16) by means of an articulated quadrilateral (20), said articulated quadrilateral (20) comprising a pair of cross members (24, 24), hinged to the forecarriage frame (16) at middle hinges (28), said cross members (24, 24) being connected to each other at opposite transverse ends (40, 44), by means of uprights (48, 48, 48) pivoted to said transverse ends (40, 44) at side hinges (52), the cross members (24, 24) and the uprights (48), the tilting support structure (72) being hinged to the articulated quadrilateral (20) by means of steering hinges (76) a guide wheel (88) connected to the rotation pin (68) of front wheel (10, 10) at a special wheel attachment (94), a support bracket (92) hinged to the articulated quadrilateral (20) by means of said steering hinges (76), the guide wheel (88) being in turn hinged to the support bracket (92) at opposite upper and lower axial ends (96, 98).

The present invention relates to an improved control system of the trim of motorcycles with more than two wheels. More in particular, it relates to motorcycles which have at least three wheels and can lean sideways by virtue of the presence of a so-called wheel tilting system. The present invention improves on prior art HTS hydro-pneumatic systems, to improve the vehicle trim, particularly while cornering with the leaned vehicle.