Abstract: A vehicle including a controlled vertical position chassis, in order to be able to be moved into a low position supported on the ground, and, associated with each wheel, a suspension arm, an arm actuator, and a safety device capable of limiting the accidental lowering of the chassis, the device being able to adopt an active state wherein the rotation of the suspension arm can be limited, the device including an actuator, a cylinder of which is mounted on the chassis and a piston of which is mounted on the suspension arm, or vice versa, the actuator defining a first chamber connected to a first and a second fluid passage through the cylinder, the second passage being connected to a first fluid pipe fitted with a safety valve.

Abstract: A vehicle including a controlled vertical position chassis, in order to be able to be moved into a low position supported on the ground, and, associated with each wheel, a suspension arm, an arm actuator, and a safety device capable of limiting the accidental lowering of the chassis, the device being able to adopt an active state wherein the rotation of the suspension arm can be limited, the device including an actuator, a cylinder of which is mounted on the chassis and a piston of which is mounted on the suspension arm, or vice versa, the actuator defining a first chamber connected to a first and a second fluid passage through the cylinder, the second passage being connected to a first fluid pipe fitted with a safety valve.

Abstract: A method for lowering a vehicle chassis to a required vertical position, the vehicle including only two sets of running gear, namely a front set of running gear and a rear set of running gear, each wheel of the sets of running gear being associated with a parking brake, the method including the following successive steps: when the chassis is in its high running position, actuating the parking brake only for all of the wheels of one of the two sets of running gear; lowering the chassis to its low position resting on the ground; and actuating the parking brake for all of the wheels of the other of the two sets of running gear.

Abstract: A couplable automotive road vehicle includes two front wheels, a chassis having a front part and a rear part, an articulated connection device, and front and rear couplings. A wheel cylinder is defined as the cylindrical geometric shape surrounding the two front wheels when the wheels are not turned. The front part of the chassis includes a chassis beam disposed behind the front wheels, outside the wheel cylinder. The front coupling includes a yaw rigid coupling module mounted on the chassis beam between the two front wheels. The vehicle includes, for each front wheel, a suspension arm mounted on the chassis beam and extending around the wheel cylinder, above same, and a tie rod for controlling the steering device, located above the wheel cylinder.

Abstract: A couplable automotive road vehicle includes two front wheels, a chassis having a front part and a rear part, an articulated connection device, and front and rear couplings. A wheel cylinder is defined as the cylindrical geometric shape surrounding the two front wheels when the wheels are not turned. The front part of the chassis includes a chassis beam disposed behind the front wheels, outside the wheel cylinder. The front coupling includes a yaw rigid coupling module mounted on the chassis beam between the two front wheels. The vehicle includes, for each front wheel, a suspension arm mounted on the chassis beam and extending around the wheel cylinder, above same, and a tie rod for controlling the steering device, located above the wheel cylinder.

Abstract: A road vehicle convoy control method includes applying, on a hinge, a moment, an amplitude of which varies based on measured oscillations to absorb the measured oscillations. The moment is applied on the hinge by controlling an actuator of the hinge and jointly controlling: an electrical machine of a first wheel from a wheel set that belongs to part of a chassis that pivot in relation to another wheel because of the hinge to increase torque of the first wheel; and, simultaneously, an electrical machine of a second wheel from the same wheel set to keep the torque thereof constant or increase the torque of the second wheel less than the torque of the first wheel to apply the moment on the hinge in combination with the actuator.

Abstract: A road vehicle convoy control method includes applying, on a hinge, a moment, an amplitude of which varies based on measured oscillations to absorb the measured oscillations. The moment is applied on the hinge by controlling an actuator of the hinge and jointly controlling: an electrical machine of a first wheel from a wheel set that belongs to part of a chassis that pivot in relation to another wheel because of the hinge to increase torque of the first wheel; and, simultaneously, an electrical machine of a second wheel from the same wheel set to keep the torque thereof constant or increase the torque of the second wheel less than the torque of the first wheel to apply the moment on the hinge in combination with the actuator.

Abstract: A motor vehicle includes a first wheel carrier to which is secured without any degree of freedom a rotational shaft of a wheel and which is displaceable between a remote position and a close position. The vehicle also includes a torsion bar including a first attachment point mechanically connected to the first wheel-carrier and a coupling bar securely attached to the chassis and includes, at a free end a coupling, the torsion bar including a second attachment point mechanically connected to the coupling bar in order to move the latter towards the upper position thereof as the first wheel-carrier moves towards its close position and in order to move it downwards as the first wheel-carrier moves towards its remote position.

Abstract: A motor vehicle includes a first wheel carrier to which is secured without any degree of freedom a rotational shaft of a wheel and which is displaceable between a remote position and a close position. The vehicle also includes a torsion bar including a first attachment point mechanically connected to the first wheel-carrier and a coupling bar securely attached to the chassis and includes, at a free end a coupling, the torsion bar including a second attachment point mechanically connected to the coupling bar in order to move the latter towards the upper position thereof as the first wheel-carrier moves towards its close position and in order to move it downwards as the first wheel-carrier moves towards its remote position.

Abstract: A towable road motor vehicle including: at least three wheels, capable of driving the motor vehicle on a level road, distributed between two front and rear wheel trains of the motor vehicle; a chassis, including an articulation device, interposed between front and rear portions of the chassis and enabling the front portion to pivot, relative to the rear portion, to modify an articulation angle of the vehicle; front and rear hitches, respectively positioned at the front and rear of the motor vehicle, and a steering device, capable of modifying the steering angle of each wheel of the front train in response to a command by a driver of the vehicle, the steering device adapted to be actuated independently of the articulation device.

Abstract: The invention concerns a towable road motor vehicle (20) comprising: —at least three wheels (42, 44), capable of driving the motor vehicle on a level road (22), distributed between two front and rear wheel trains of the motor vehicle; —a chassis, comprising an articulation device, interposed between front and rear portions of the chassis and enabling the front portion to pivot, relative to the rear portion, in such a way as to modify an articulation angle of the vehicle; —front (34) and rear (36) hitches, respectively positioned at the front and rear of the motor vehicle. The motor vehicle further comprises a steering device (32), capable of modifying the steering angle of each wheel of the front train in response to a command by a driver of the vehicle, said steering device being capable of being actuated independently of the articulation device.