A vehicle small in width and capable of ensuring both driving stability and drivability includes: a vehicle body with two or more wheels including steered wheels (right front wheel, left front wheel) for steering; an inclination angle detection part that detects the inclination angle of the vehicle body about a roll axis thereof; and a torque applying part (turning mechanism) that applies a steering torque to the steered wheels in accordance with an inclination angular velocity or an inclination angular acceleration of the vehicle body calculated from the inclination angle.

A leaning vehicle is equipped with a double wishbone (DWB) type suspension apparatus capable of improving comfort felt by an operator In the leaning vehicle, a connecting member is provided such that a first distance is smaller than a second distance. A distance from the connecting member to a hip point of an operator seat in a leaning-vehicle front-back direction is larger than a distance from the connecting member to a rotational center axis of each axle of a left rear wheel and a right rear wheel in the leaning vehicle front-back direction.

A hydraulic system includes a hydraulic pump. A first hydraulic shock is coupled to a first port of the hydraulic pump. A second hydraulic shock is coupled to a second port of the hydraulic pump. A first hydraulic cylinder is coupled to the first port of the hydraulic pump. A second hydraulic cylinder is coupled to the second port of the hydraulic pump. A first valve is coupled between the first hydraulic cylinder and second hydraulic cylinder. The first valve can be actuated by a computer system or can be a ball and spring check valve. A second valve is coupled between the first hydraulic cylinder and second hydraulic cylinder. A flow direction of the second valve is opposite a flow direction of the first valve. A first piston is disposed in the first hydraulic cylinder, and a second piston is disposed in the second hydraulic cylinder.

The present disclosure belongs to the technical field of two-wheel vehicles. A two-wheel automatic balance reset mechanism comprises a balance bar arranged between a frame and each front wheel support, the balance bar comprises a piston cylinder and a piston rod, the piston rod is movably arranged in a piston chamber of the piston cylinder, two ends of the piston chamber are mutually interconnected to form a first channel, a main control valve is arranged on the first channel and divides the first channel into a medium intake end and a backflow end, a medium tank is arranged at the backflow end, a pump is arranged at the medium intake end, and the pump is interconnected with the medium tank. A system comprises a main control module and an acquisition module, and the acquisition module comprises a balance sensor arranged on the frame and a speed sensor.

A self-stabilizing vehicle includes a mass gyroscope which is fixed at an occupant compartment chassis corresponding to a portion where occupants sit. The occupant compartment portion may tilt outwards in response to the centrifugal force. If the vehicle has three or more wheels, the load is evenly distributed on the left wheel and the right wheel which move oppositely up and down about an effectively centrally-mounted shaft pin. Further, the present disclosure proposes a method for operating the self-stabilizing vehicle. According to the self-stabilizing vehicle and the operating method thereof, a vehicle having a narrow body may be used. When the vehicle undergoes external forces such as the centrifugal force and the crosswind, the occupant compartment can maintain the vertical stability even though the wheels may slide sideways.

Systems and methods for nullifying lateral and longitudinal acceleration forces experienced by an occupant of a vehicle in a seated or standing position while the vehicle is traveling along a travel surface, the system and methods including: a chassis structure; and an occupant cell structure defined by the chassis structure; wherein the chassis structure includes an upper link pivotably coupled to each of a first wheel assembly and a second wheel assembly and the occupant cell and a lower link pivotably coupled to each of the first wheel assembly and the second wheel assembly and the occupant cell; and wherein the upper link and the lower link define a parallelogram and are configured to translate with respect to one another maintaining parallel sides of the parallelogram, leaning the first wheel assembly, the second wheel assembly, and the occupant cell in unison with respect to the travel surface.

An automatic tilting vehicle including a pair of wheels rotatably supported by wheel carriers and laterally spaced apart and a vehicle tilting device that tilts the vehicle to the inside of a turn when turning. The vehicle tilting device includes a swing member, an actuator that swings the swing member about a swing axis, and a pair of connecting rods pivotally attached to the swing member and the wheel carriers on both lateral sides of the vehicle. Each connecting rod has a preset weakest portion that is buckled to be deformed in a preset direction in a preset area when a buckling load equal to or larger than a preset value is applied.

A saddle type vehicle includes two front wheels, a left front wheel supporting member and a right front wheel supporting member which are turned around a left front wheel turning axis and a right front wheel turning axis respectively, and an upper lean arm and a lower lean arm which are rotated around an axis perpendicular to a vehicle width direction. The upper arm is connected to the left and right members via first and second connecting parts. The lower arm is connected to the left and right members via third and fourth connecting parts. The first and third parts are provided in the left front wheel turning axis. The second and fourth parts are provided in the right front wheel turning axis. A distance between the first and second parts is equal to the distance between the third and fourth parts.

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.

The present invention relates to a forecarriage of a rolling motor vehicle with three or four wheels, comprising: a forecarriage frame 16; at least one pair of front wheels 10, 10 kinematically connected to each other and to the forecarriage frame by a kinematic roll mechanism 20 which enables the same to roll in a synchronous and specular manner; a roll control system 100 comprising a rod 110 having a first 111 and a second end 112 opposite each other which connect by means of hinging means 101, 101 and 102, 102 a first 60 and a second anchoring portion 60 of forecarriage 8 directly to each other. At least one of said first 60 and second anchoring portions 60 is subject to roll movements of said two front wheels 10, 10. The hinging means 101, 101 and 102, 102 are configured to passively follow the movements of said two anchoring portions. The hinging means 101, 101 at the first end 111 of the rod comprise at least a first roll hinge 101 which has its hinge axis substantially orthogonal to a rolling plane of the two front wheels and is connected to the first anchoring portion 60. The roll control system comprises a first damper device suitable to dampenin a predetermined angular rangethe rotation movements of said rod with respect to said first roll hinge at the first end 111. Said angular range corresponds to the angular roll range of the rod. Said first damper device comprises a connecting rod-crank kinematic mechanism 210, 220 which is connected to rod 110 at the connecting rod 210 by means of a first cylindrical hinge 201, and to said first anchoring portion 60 at crank 220 by means of a second cylindrical hinge 202 so as to define an articulated quadrilateral. The connecting rod is connected to the crank by means of a cylindrical articulation hinge 203. Such three hinges 201, 202 and 203 all have a hinge axis parallel to the hinge axis of the first roll hinge 101. The connecting rod is engaged in the articulation hinge or in the first hinge with an axial mobile coupling. The crank consists of an axial damper 222 or comprises an axial damper 222, which is arranged coaxially to the crank and has a predetermined axial stroke. Said first damper device further comprises an actuator 230 which is suitable to impart an axial shift movement to the connecting rod relative to the articulation hinge or to the first hinge to vary the distance H defined between such two hinges. The actuator is operable to vary such a distanc