A handwheel actuator assembly 600 for a steer by wire steering system of a vehicle is disclosed. The assembly 600 comprises a steering wheel 601 and a feedback torque generator. The steering wheel 601 has at least one hand grip portion rotatable around an axis of rotation of the steering wheel 601 which can be gripped by a driver and a hub 602 that supports the hand grip portion. The feedback torque generator comprises an electric motor which has a stator 609 and a rotor 610. The rotor 610 is directly or indirectly fixed to and rotates with the hub of the steering wheel 601 and the stator 609 is secured to a fixed part of the vehicle body such that it cannot rotate relative to the vehicle body. The motor comprises a brushless permanent magnet Vernier motor.

A steering control device controls, as a target, a steering device including a steering actuator and a turning actuator that has a structure with a power transmission path cut off from the steering actuator, and can reflect a state of an automated driving command. A control unit is configured to execute: turning-side synchronization control when the absolute value of a deviation amount is a value within a first range; steering-side synchronization control when the absolute value of the deviation mount is a value within a second range that is a larger value than a value within the first range; and at least one of the turning-side synchronization control and the steering-side synchronization control when the absolute value of the deviation amount is a value within a third range that is a value between a value within the first range and a value within the second range.

A steering wheel control apparatus of an SBW (Steer-By-Wire) system may include a dominant controller configured to generate a wake-up signal, in response to an ignition switch of a vehicle being off, a motor driver configured to generate a steering reaction force against a steering wheel through a motor, and a steering wheel controller configured to generate the steering reaction force to interrupt a turn of the steering wheel, by controlling the motor driver according to the wake-up signal.

A method for adapting the steering feel for a driver of a vehicle at an input element of the vehicle is described. The vehicle has a steer-by-wire steering system. The method comprises creating a reference of the steering feel. The method further comprises selecting scaling factors for the reference model such that characteristics of the steering feel remain constant for different steering ratios. The method further comprises adapting the steering feel using the scaling factors.

A steering wheel-based HMI system for a vehicle includes a steer-by-wire system and a control module. The steer-by-wire system includes a steering wheel and a torque feedback unit mechanically connected to the steering wheel. The control module is communicatively connected to the torque feedback unit. The control module is configured to identify a communication, gather information about user securement of the steering wheel, and operate the torque feedback unit to apply a supplementary torque to the steering wheel for haptically issuing the communication through the steering wheel. The supplementary torque has a magnitude that is scaled based on the information about user securement of the steering wheel.

According to the embodiments of the present invention, the drive feel suitable to given conditions is provided to a driver by generating friction when a steering shaft is rotated to enhance the drive feel of the driver, limiting the maximum steering angle, restoring the steering wheel automatically, and controlling friction on the steering shaft in accordance with the steering angle, vehicle speed and road conditions.

A method includes receiving motor velocity data, and, in response to a determination that the motor velocity data indicates that a velocity of a motor is below a threshold velocity: calculating a thermal metric corresponding to a phase imbalance of the motor; identifying at least one thermal mitigation parameter based on the thermal metric; generating at least one thermal management motor position command based on the at least one thermal mitigation parameter; and selectively controlling the motor according to the thermal management motor position command.

A steering system and a vehicle are provided. The steering system includes a steering wheel end shaft, a steering device end shaft, and an electric driving mechanism configured to drive decoupling or coupling of the steering wheel end shaft and the steering device end shaft that are coaxially disposed.

Disclosed are a clutch mechanism, a steering system, and an automobile. The clutch mechanism includes a slidable block and a driving component. The slidable block can be accommodated in a radial spacing between a first end shaft and a second end shaft that are coaxially arranged and radially spaced apart from each other, and is configured to translate along an axial direction of the first end shaft and the second end shaft to realize decoupling or coupling between the first end shaft and the second end shaft. The driving component is configured to drive the slidable block to translate along the axial direction of the first end shaft and the second end shaft.

A feedback actuator for a steering device of a motor vehicle may include a casing unit that has an outer casing that can be attached to a motor vehicle and an inner casing received therein such that the inner casing is telescopically adjustable in a longitudinal direction, a steering spindle mounted in the inner casing such that the steering spindle is rotatable about a longitudinal axis, and an electric motor of a drive unit arranged in an interior space of the casing unit. The electric motor may have a stator that is fixed on the outer casing and a rotor that can be driven rotationally. A rotor shaft may be coaxial with respect to the longitudinal axis and coupled via a gear mechanism to the steering spindle.