A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, and a suspension. The left front wheel is positioned on the first side (left side) in the vehicle width direction. The right front wheel is positioned on the second side (right side) opposite to the first side in the vehicle width direction. The lean mechanism connects the left front wheel and the right front wheel and vertically vibrates integrally with both of the left front wheel and the right front wheel. The suspension is positioned so as to overlap the center of the vehicle in the vehicle width direction, connects the lean mechanism to the vehicle body, and reduces vibration transmitted from a road surface to the vehicle body via the left front wheel and the right front wheel.

The invention relates to a three-wheeled electric vehicle (10) comprising a front-axle device (22) having two steerable front wheels (24a, 24b) which are aligned substantially parallel to each other when traveling straight ahead; a rear-axle device (12) with a driven rear wheel (14); and a vehicle frame (26) on which the front-axle device (22) and the rear-axle device (12) are supported; wherein the front-axle device (22) is designed such that when the steering angle is rotated, the vehicle frame (26) and the front wheels (24a, 24b) may be tilted in the direction of the rotated steering angle. The compactness value KW, which is calculated from the ratio of the distance SP between the front wheels (24, 24B) when arranged substantially parallel to each other for a straight-ahead travel to the wheelbase RS between the front wheels (24a, 24b) and the rear wheel (14), said wheelbase being measured when the front wheels (24, 24b) are positioned for a straight-ahead travel, satisfies the following condition: KW=SP/RS 0.35≤KW≤0.80, in particular 0.62≤KW≤0.78.

The invention relates to a three-wheeled electric vehicle (10) comprising a front-axle device (22) having two steerable front wheels (24a, 24b) which are aligned substantially parallel to each other when traveling straight ahead; a rear-axle device (12) with a driven rear wheel (14); and a vehicle frame (26) on which the front-axle device (22) and the rear-axle device (12) are supported; wherein the front-axle device (22) is designed such that when the steering angle is rotated, the vehicle frame (26) and the front wheels (24a, 24b) may be tilted in the direction of the rotated steering angle. The compactness value KW, which is calculated from the ratio of the distance SP between the front wheels (24, 24B) when arranged substantially parallel to each other for a straight-ahead travel to the wheelbase RS between the front wheels (24a, 24b) and the rear wheel (14), said wheelbase being measured when the front wheels (24, 24b) are positioned for a straight-ahead travel, satisfies the following condition: KW=SP/RS 0.35≤KW≤0.80, in particular 0.62≤KW≤0.78.

Shock absorber having a main sheath and a main piston sliding inside the main sheath in a sliding direction (X-X), the main piston including a main rod coming out of the main sheath and a main head contained inside the main sheath, the main sheath being filled with hydraulic fluid, a secondary sheath fluidically connected to the main sheath and provided with at least one damping valve, where the secondary sheath is connected to the main sheath by a first and a second passage placed at opposite ends to the main head of the main piston, along the sliding direction (X-X), the secondary sheath including a control valve movable, according to a regulation stroke, between an unlocking position, in which it does not interfere with the first and second passages, and a blocking position, where it occludes the first and second passages so as to realize a selective two-way block.

Shock absorber having a main sheath and a main piston sliding inside the main sheath in a sliding direction (X-X), the main piston including a main rod coming out of the main sheath and a main head contained inside the main sheath, the main sheath being filled with hydraulic fluid, a secondary sheath fluidically connected to the main sheath and provided with at least one damping valve, where the secondary sheath is connected to the main sheath by a first and a second passage placed at opposite ends to the main head of the main piston, along the sliding direction (X-X), the secondary sheath including a control valve movable, according to a regulation stroke, between an unlocking position, in which it does not interfere with the first and second passages, and a blocking position, where it occludes the first and second passages so as to realize a selective two-way block.

A walking vehicle the vehicle frame comprises a vertical tube adjacent to the two front wheels, and a lateral tube at the top end of the vertical tube. The rear wheel is connected to a left pedal and a right pedal. The central rod passes through the lateral tube. The left handlebar sheathes and the right handlebar sheathes each one end of the central rod. The left handlebar are connected to the left pedal. The right handlebar are connected to the right pedal. The gear set comprises a first bevel gear mounted at the right handlebar, a second bevel gear mounted at the right connecting rod, and a connecting gear with a mounting rod passing through the central rod thereof and engaging the first bevel gear and the second bevel gear. This has the effect of facilitating the operation of the walking vehicle for improved handling maneuverability and stability.

A tiltable vehicle has a pair of front wheels coupled to a tiltable chassis by a tilt linkage, such that the pair of front wheels and the chassis are configured to tilt in unison with respect to a roll axis of the chassis. The tilt linkage includes a four-bar linkage having a pair of upper bar segments coupled to the chassis at spaced-apart respective inboard joints. In some examples, the inboard joints of the upper bar segments are each disposed outboard of a central chassis joint of a lower bar of the tilt linkage. An orientation sensor is configured to detect directional information regarding a net force vector applied to the chassis, and a tilt actuator operatively coupled to the chassis and configured to selectively tilt the chassis. A controller is configured to selectively control the tilt actuator based on the directional information from the orientation sensor.

An autonomous tilting three-wheeled vehicle comprises a pair of front wheels coupled to a tiltable chassis by a mechanical linkage, such that the pair of wheels and the chassis are configured to tilt in unison with respect to a roll axis of the chassis. An electronic controller of the autonomous vehicle controls a tilt actuator to selectively tilt the chassis. Optionally, a steering actuator is coupled to the front wheels and controlled by the electronic controller to selectively steer the wheels. A sensor configured to measure orientation-dependent information may be coupled to the chassis by a gimbal configured to compensate for vehicle tilt. In some examples, the autonomous vehicle comprises an autonomous delivery robot.

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.

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.