A bar is designed for attaching a steering cylinder of a vehicle to a wheel axle. The bar is twisted around its longitudinal axis. The bar is manufactured by cutting out a rectangular plate of metallic material or of composite material, clamping the longitudinal ends of the cut-out plate, and pivoting one end or pivoting both ends in opposite directions, around a longitudinal axis of the plate.

A bar is designed for attaching a steering cylinder of a vehicle to a wheel axle. The bar is twisted around its longitudinal axis. The bar is manufactured by cutting out a rectangular plate of metallic material or of composite material, clamping the longitudinal ends of the cut-out plate, and pivoting one end or pivoting both ends in opposite directions, around a longitudinal axis of the plate.

A speed reducer includes an input shaft configured to receive power from a drive portion, a gear unit fastened to the input shaft to receive the power from the drive portion through the input shaft, and an output shaft coupled to the gear unit and configured to transmit driving power, in which the gear unit includes a spur gear coupled to the input shaft, and a mounting gear positioned coaxially with the spur gear and coupled to the output shaft, and in which a rotation angle of the output shaft is decreased by minute deformation of the gear unit.

A speed reducer includes an input shaft configured to receive power from a drive portion, a gear unit fastened to the input shaft to receive the power from the drive portion through the input shaft, and an output shaft coupled to the gear unit and configured to transmit driving power, in which the gear unit includes a spur gear coupled to the input shaft, and a mounting gear positioned coaxially with the spur gear and coupled to the output shaft, and in which a rotation angle of the output shaft is decreased by minute deformation of the gear unit.

Systems and methods for controlling the speed and direction of vehicles such as tractors.

A utility vehicle includes a chassis frame, a front axle coupled to the chassis frame and having steerable wheels, and a rear axle coupled to the chassis frame. A steering system is used to deflect the wheels of the front axle and includes a steering gear arranged between the front axle and the rear axle. The steering system includes a redirection lever arranged in front of the front axle and is coupled to a first coupling rod that is coupled to the steering gear. A second coupling rod is coupled to the redirection lever and to a wheel carrier of the front axle. On actuation of the steering gear, the first coupling rod and the second coupling rod are configured to deflect the steerable wheels to turn the utility vehicle in the desired direction.

A utility vehicle includes a chassis frame, a front axle coupled to the chassis frame and having steerable wheels, and a rear axle coupled to the chassis frame. A steering system is used to deflect the wheels of the front axle and includes a steering gear arranged between the front axle and the rear axle. The steering system includes a redirection lever arranged in front of the front axle and is coupled to a first coupling rod that is coupled to the steering gear. A second coupling rod is coupled to the redirection lever and to a wheel carrier of the front axle. On actuation of the steering gear, the first coupling rod and the second coupling rod are configured to deflect the steerable wheels to turn the utility vehicle in the desired direction.

A suspension coupling structure includes: a lower arm including a first end coupled to a vehicle body, an upper arm coupled to an upper end of a fixed knuckle, a rotating knuckle located at a lower end of the fixed knuckle and an upper end of the lower arm and configured to be rotatably coupled to a wheel of a vehicle, a steering input part fixed to the fixed knuckle and configured to apply a steering force to the rotating knuckle, and a toe link configured to couple the fixed knuckle to the vehicle body.

A suspension coupling structure includes: a lower arm including a first end coupled to a vehicle body, an upper arm coupled to an upper end of a fixed knuckle, a rotating knuckle located at a lower end of the fixed knuckle and an upper end of the lower arm and configured to be rotatably coupled to a wheel of a vehicle, a steering input part fixed to the fixed knuckle and configured to apply a steering force to the rotating knuckle, and a toe link configured to couple the fixed knuckle to the vehicle body.

A vehicle corner module for wheel-individual steering comprises a wheel portion, a vehicle portion and a steering mechanism. The steering mechanism comprises a steering motor and a gearbox. The steering motor is configured to rotate the wheel portion about a steering axis relative to the vehicle portion by way of the gearbox. The reliability and service life of such a vehicle corner module is to be increased. For this purpose, it is provided that the steering mechanism comprises two steering motors, each of which is configured to rotate the wheel portion about the steering axis relative to the vehicle portion by way of the common gearbox. Furthermore provided is a vehicle comprising at least one, preferably two or four, such vehicle corner modules.