A steering system and method can determine one or more position-related characteristics of a steering column of a machine, determine that the one or more position-related characteristics indicate that a resistive force is to be applied to the steering column, and control operation of an electric motor to apply the resistive force to the steering column, wherein a mechanical end stop can be provided to restrict rotation of the steering column. One or more virtual stops may be set to limit rotation of the steering column by way of controlling the operation of the electric motor to apply the resistive force.

A steering column assembly includes a jacket assembly. The steering column assembly also includes a steering actuator operatively coupled to the jacket assembly with a connector plate, the connector plate defining an opening having a main portion and a channel extending radially outward from the main portion of the opening.

The present disclosure relates to a steering control apparatus and method of the steer-by-wire system including a sensing information collector for collecting at least one of sensing information on a steering or sensing information on a rack, a motor operation determiner for determining a start of a motor limiting mode for a reaction force motor and an end of the motor limiting mode for the reaction force motor which provides a reaction torque to a steering wheel based on the collected sensing information, a control signal generator for generating a control signal corresponding to the start of the motor limiting mode or the end of the motor limiting mode based on the determined result, and a control signal output for outputting the generated control signal to the reaction force motor.

Steer-by-wire steering systems for vehicles and related methods are described herein. An example steer-by-wire steering system includes a steering wheel angle sensor to detect a current steering wheel angle (α) of a steering wheel of the motor vehicle, a steering actuator to generate a variable steering torque on a steerable wheel of the motor vehicle, a steering angle sensor to detect a current steering angle (β) of the steerable wheel, and a steer-by-wire controller to process signals from the steering wheel angle sensor and the steering angle sensor and control the steering actuator based on the signals. The steer-by-wire controller is configured to vary a transmission ratio between a change in the steering wheel angle (α) and a change in the steering angle (β).

A vehicle of a steer-by-wire type includes: a turning device that turns a wheel by actuating a turning motor; and a reaction torque generation device that applies a reaction torque to a steering wheel by actuating a reaction motor. A control device for the vehicle is configured to control turning of the wheel by controlling the turning motor and to control the reaction torque by controlling the reaction motor, according to rotation of the steering wheel. When a power output limiting condition is satisfied, the control device executes not only power output limiting processing that limits a power output of the turning motor but also reaction torque increasing processing. In the reaction torque increasing processing, the control device controls the reaction torque to make the steering wheel harder to rotate as compared with a case where the power output limiting processing is not executed.

The present disclosure relates to a steering system comprising a rotatable steering wheel hub; a torque feedback device including an electric machine having a rotor and a stator, the rotor being attached to the steering wheel hub, and the stator being fixed to a non-rotatable component of the steering system; a steering system support column including an off-axis section having a first longitudinal axis that is off-set to an axis of rotation and including an aligned section having a second longitudinal axis that corresponds to the axis of rotation. The steering wheel hub is rotatably mounted on the aligned section and axially spaced from the off-axis section. A steering wheel rotation limiting device is attached to the off-axis section and engaging the steering wheel hub.

A steering column assembly for a vehicle comprises a steering column mounted for rotation about its longitudinal axis and configured for attachment of a steering wheel at one end; a first gear connected to the steering column at a location spaced from the steering wheel attachment portion and configured to rotate with the steering column; first and second motors; first and second worm screws connected to and rotatable with the output of the first and second motors respectively and engaged with the first gear; and a control arrangement configured to operate the first and second motors; wherein rotational axes of the first and second worm screws are inclined with respect to a plane extending perpendicular to the rotational axis of the steering column.

A vehicle steering system includes: a housing, and a clutch module including a first steering shaft, a steering assembly, and a drive mechanism. A part of the first steering shaft and the steering assembly are disposed in the housing. The steering assembly is configured to move between a coupling position and a decoupling position, is coupled with the first steering shaft at the coupling position and transmits a torque, and is decoupled from the first steering shaft at the decoupling position and stops the transmission of the torque. A transmission unloading mechanism is configured to unload a limiting force of the drive mechanism on the steering assembly when the steering assembly is at the coupling position, connect with the drive mechanism and the housing to enable the drive mechanism connects with the steering assembly, and drive the steering assembly to move between the coupling position and the decoupling position.

A vehicle steering system includes: a housing; a first steering shaft, disposed in the housing, where the first steering shaft is configured to be coupled with a steering gear to transmit a steering torque, or the first steering shaft is configured to be decoupled from the steering gear to interrupt a transmission of the steering torque; and a feeling simulator, connected with the first steering shaft, where in response to that the first steering shaft and the steering gear interrupt the transmission of the steering torque, the feeling simulator is configured to simulate a steering feeling of the transmission of the steering torque by the first steering shaft and the steering gear.

Disclosed herein is a device for selectively limiting both rotational directions of a steering wheel, and provided is a steering angle limiting device of a steer-by-wire (SBW) system including a stopping gear configured to be rotated together with a steering shaft; a cam configured to receive a rotational force of an actuator and to be eccentrically rotated; and a stopper configured to be rotated in response to rotational operation of the cam and selectively engaged with gear teeth of the stopping gear, thereby restricting selectively forward and reverse directional rotations of the stopping gear.