A steering column for vehicle is disclosed. The steering column for vehicle according to an embodiment of the present disclosure include a steering shaft; an inner tube into which the steering shaft is inserted and coupled and which forwardly or backwardly moves the steering shaft when moving in the longitudinal direction; an outer tube moving together with the inner tube when moving in the longitudinal direction, and coupled to the outside of the inner tube to allow the inner tube to independently move in the longitudinal direction; an outer tube drive for moving the outer tube in the longitudinal direction; and an inner tube drive for moving the inner tube in the longitudinal direction.

A device for stowing a steering wheel and a control method thereof are provided. The device includes a steering wheel module having a steering wheel and the steering wheel module is movable to an interior of a stowage space together with the steering wheel. A complex planetary gear set having first to fifth rotational elements and first to third braking elements, which are organically coupled is provided. A sliding unit is configured to slide the steering wheel module into the stowage space, and a return spring is configured to provide resilience force in a direction in which the steering wheel module moves away from the storage space to be deployed.

According to the present embodiments, a telescopic stroke is increased while an installation space of a steering column is easily secured, and a telescopic operation can be quickly performed without increasing a motor output. During the telescopic operation, noise may be reduced, and assemblability and mass productivity of the steering column may be improved.

A steering column includes a steering shaft, a fixing bracket, a first cylinder, a second cylinder, an angle adjustment motor, an angle adjustment screw-nut assembly, a linkage assembly, a height adjustment motor, and a height adjustment screw-nut assembly, where the second cylinder is slidably sleeved with the first cylinder, the steering shaft runs through the first and second cylinders, the steering shaft includes an upper shaft and a lower shaft that are in splined connection, the upper shaft is supported in the second cylinder through a first bearing, the lower shaft is supported in the first cylinder through a second bearing, the first cylinder is hinged to the fixing bracket, the angle adjustment motor can drive the first cylinder to rotate relative to the fixing bracket, and the height adjustment motor can drive the second cylinder to axially move relative to the first cylinder.

A steering column includes a steering shaft, a fixing bracket, a first cylinder, a second cylinder, an angle adjustment motor, an angle adjustment screw-nut assembly, a linkage assembly, a height adjustment motor, and a height adjustment screw-nut assembly, where the second cylinder is slidably sleeved with the first cylinder, the steering shaft runs through the first and second cylinders, the steering shaft includes an upper shaft and a lower shaft that are in splined connection, the upper shaft is supported in the second cylinder through a first bearing, the lower shaft is supported in the first cylinder through a second bearing, the first cylinder is hinged to the fixing bracket, the angle adjustment motor can drive the first cylinder to rotate relative to the fixing bracket, and the height adjustment motor can drive the second cylinder to axially move relative to the first cylinder.

A method of operating a steering column of a motor vehicle, which includes a height adjuster including an electric motor and a controller to control the electric motor to raise and lower along an adjustment path of a steering assembly connected to the steering column. The control is effected by pulse width modulation and, by varying a duty cycle of the pulse width modulation, an electrical voltage is adapted in such a way that the raising and/or lowering is effected over an adjustment path at a constant adjustment speed.

A method of operating a steering column of a motor vehicle, which includes a height adjuster including an electric motor and a controller to control the electric motor to raise and lower along an adjustment path of a steering assembly connected to the steering column. The control is effected by pulse width modulation and, by varying a duty cycle of the pulse width modulation, an electrical voltage is adapted in such a way that the raising and/or lowering is effected over an adjustment path at a constant adjustment speed.

A height adjustment device of a steering column of a motor vehicle includes an electric motor and a reduction gear. The electric motor drives a threaded spindle to raise and lower a steering assembly connected to the steering column. The threaded spindle is engaged with a spindle nut, a rotational movement of the threaded spindle is converted into a translational movement of the spindle nut in a direction of a longitudinal axis of the threaded spindle, and the threaded spindle is surrounded on a circumferential side by at least one spring that exerts a spring force on the spindle nut to counteract a weight force of the steering assembly acting in the direction of the axis of rotation of the threaded spindle. The at least one spring includes a compression spring between the reduction gear and the spindle nut and tensioned when the steering assembly is lowered.

A height adjustment device of a steering column of a motor vehicle includes an electric motor and a reduction gear. The electric motor drives a threaded spindle to raise and lower a steering assembly connected to the steering column. The threaded spindle is engaged with a spindle nut, a rotational movement of the threaded spindle is converted into a translational movement of the spindle nut in a direction of a longitudinal axis of the threaded spindle, and the threaded spindle is surrounded on a circumferential side by at least one spring that exerts a spring force on the spindle nut to counteract a weight force of the steering assembly acting in the direction of the axis of rotation of the threaded spindle. The at least one spring includes a compression spring between the reduction gear and the spindle nut and tensioned when the steering assembly is lowered.

In at least some implementations, an adjustable steering assembly for a vehicle includes a steering shaft, a steering input that is coupled to the steering shaft, and an adjustment device. The adjustment device has a drive member coupled to one of the steering input or the steering shaft, and a reaction member coupled to the other one of the steering input or the steering shaft. The drive member rotates with said one of the steering input or the steering shaft to which the drive member is coupled to permit steering rotation of the steering shaft, and the drive member is rotated relative to said one of the steering input or the steering shaft to which the drive member is coupled to change the rotational position of the steering input relative to the steering shaft.