A steering system includes a steering shaft; a reaction motor; and a control unit configured to control the reaction motor. The control unit has a function of performing a correction process of rotating the steering wheel using the reaction motor such that a displacement in a rotational position of the steering wheel with respect to a correct rotational position corresponding to a turning position of the turning wheels decreases when a power supply of the vehicle is turned on and the rotational position of the steering wheel is different from the correct rotational position. The control unit is configured to perform the correction process when the displacement is equal to or greater than a predetermined permissible value and not to perform the correction process when the displacement is less than the permissible value.

A device for locating a noise occurring in a steering system includes: a sound receiving unit detecting noise occurring in a steering system; a processing unit inputting data on the noise in the steering system into a neural network model that performs learning in advance and locating a position or a component at which the noise occurs in the steering system, the noise being detected by the sound receiving unit; and a storage unit in which the neural network model that performs the learning in advance is stored.

A steering control device includes a steering control unit configured to control an actual steering angle of the steering member by controlling a steering output torque output from the steering actuator, and a turning control unit configured to control an actual turning angle of the turning tire by controlling a turning output torque output from the turning actuator. The turning control unit is configured to perform a gradual reduction control to gradually decrease the turning output torque during a linked control in which the steering control unit controls the actual steering angle in conjunction with the actual turning angle in response to a stop instruction. The turning control unit and the steering control unit are configured to cut energization to the turning actuator and the steering actuator after the gradual reduction control.

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 stop (e.g., a progressive mechanical 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.

The present disclosure relates to a steering control system for a vehicle, a vehicle comprising such a steering control system and a method for operating such a steering control system for a vehicle. The steering control system comprises a frequency filter unit, a first control unit, and a second control unit. The frequency filter unit comprises a high pass filter and a low pass filter. The frequency filter unit is configured to receive a request for a steering angle and filter the request into a low-pass filtered request and a high-pass filtered request. The first control unit is configured to determine a first controlling torque based on the low-pass filtered request the second control unit is configured to determine a second controlling torque based on the high-pass filtered request. The first control unit is different of the second control unit.

An apparatus for use in turning steerable vehicle wheels includes a steering member connected to at least one steerable vehicle wheel. The steering member moves axially to effect turning movement of the at least one steerable vehicle wheel. The steering member has an externally threaded portion. A ball nut assembly is connected with the externally threaded portion of the steering member. The ball nut assembly is rotatable relative to the steering member to axially move the steering member. A first gear member is rotatable in response to rotation of a steering wheel. A second gear member disposed in meshing engagement with the first gear member rotates in response to rotation of the first gear member. The ball nut assembly rotates relative to the steering member in response to rotation of the second gear member.

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 system is provided for implementing steering wheel controls, namely a center indicator on a decouplable steering wheel that is visible to the driver. The center indication controls provide a center indicator for a temporarily decouplable steering wheel, where the center indicator is visibly generated on the steering wheel. A system includes center indicator devices that are disposed along a perimeter on a steering wheel. A controller determines a position on the steering wheel that corresponds to a center position, and selects one of the plurality of center indicator devices at the determined center position on the steering wheel. The selected center indicator device produces feedback to the driver to indicate the center position on the steering wheel. Feedback from the center indicator allows drivers to be better aware of the steering wheel's position and to make safe and/or accurate maneuvers until the steering wheel is properly recoupled.

A number of illustrative variations may include a method of communication between a driver and an autonomous steering system.

A system for guiding a vehicle includes first and second operating elements, which are configured to influence a wheel steering angle of the vehicle and are not mechanically coupled to one another. A target steering angle is determined as a function of a sum of steering torques, which is dependent on a target steering torque and actual steering torques of the first and of the second operating elements. The first and second actual steering angles are adjusted as a function of the target steering angles in the respective first and second operating elements. A target wheel steering angle is determined as a function of the target steering angle, wherein the sum of steering angles includes two summands dependent on the first actual steering angle and the second actual steering angle, respectively. The wheel steering angle is adjusted as a function of the target wheel steering angle.