A steering device includes: an offset correction value storing section to store an offset correction value including a first offset correction value and a second offset correction value, the first offset value being a current value for correcting the first sensed current signal so that a value of a vibration of the electric motor is equal to or smaller than a first predetermined value when the motor rotation speed signal is a first rotation speed, and the second offset value being a current value for correcting the first sensed current signal so that the value of the vibration of the electric motor is equal to or smaller than a second predetermined value when the motor rotation speed signal is a second rotation speed.

A steering system includes a steering column for rotation between at least a center position and a range of second positions and defining a central axis. The steering system also includes an actuator assembly in operative communication with the steering column to provide steering assistance, the actuator assembly comprising a pair of plates, each plate including a first helical track and a second helical track. The steering system further includes a spring element arranged with the actuator assembly to bias movement of one of the pair of plates along the central axis to influence the steering column to move to the center position.

Systems, methods, and devices for enhancing steering control of a recreational vehicle. One or more mechanical dampers are coupled to and resist movement of a steering system of the recreational vehicle, and an electrically actuated device is coupled to the steering system for applying torque to the steering system. A sensor is also positioned adjacent the steering system that generates data indicating an operational state of the recreational vehicle. A first torque applied to the steering system by the one or more mechanical dampers is estimated based on the operational state, a second torque to apply to the steering system by the electrically actuated device is calculated based on the estimated first torque and the operational state, and the electrically actuated device is operated to apply the second torque to the steering system.

In a controller for a steering device, the steering device includes a structure where motive power transmission between a steering unit and a turning unit is separated. The controller includes a control circuit configured to control operation of a steering-side motor that is provided in the steering unit to give steering reaction force that is force against the steering input into the steering unit. In a case where turning of the turning wheels to one direction is restricted, the control circuit is configured to calculate restriction reaction force for restricting steering that is to turn the turning wheels to the one direction. The control circuit is configured to calculate the restriction reaction force based on information on the steering unit.

A steering control device is configured to control a motor, the motor being a generation source of a driving force that is given to a steering mechanism of a vehicle. The steering control device includes a controller configured to compute a controlled variable depending on a steering state, the controlled variable being used in the control of the motor. The controller is configured to alter a control parameter for the controller, based on a command that is generated by a host control device depending on a purpose of an intervention in a steering control, the host control device being mounted on the vehicle.

A steering system for motor vehicles, including a steering actuator which acts on the steered wheels, is electronically controlled based on a steering request and acts on the steered wheels via a steering gear, and an actuator device which transmits reactions to a steering shaft connected to the steering wheel. The steer-by-wire steering system has a holding brake which can be activated electrically and has two positions; a holding position and an open position. The holding brake is configured to block rotation of the steering shaft in the holding position when a predefined rotational angle of the steering shaft is exceeded, and to release rotation of the steering shaft in the open position.

The invention relates to a rotary control device (1) for steering a vehicle comprising a user interface surface (3), in particular a knob, that is embodied to rotate with respect to a housing (5) of the device (1) around a rotational axis (7) of the device (1), further comprising a sensor unit (9) for monitoring the orientation and/or rotational movement of the user interface surface (3) with respect to the housing (5), a processing unit (11), and a communications interface (13) for transmitting control signals (Ts) according to an output (Op) from the processing unit (11), said output (Op) being generated by the processing unit (11) on the basis of sensor data (Ds) from the sensor unit (9).

An electromagnetic motor comprising an inner stator comprising a plurality of stator teeth, each surrounded by one or more turns of electrical wire, a controller which generates a set of currents that are applied to phase windings of the inner stator to generate a pattern of magnetic poles spaced around the inner stator, the spacing between the magnetic poles being larger than the spacing between adjacent teeth of the inner stator, an outer stator that is concentric with the inner stator and comprises an alternating set of magnet poles, the spacing between adjacent magnet poles being smaller than the spacing of the magnetic poles of a first array created by the controller, and an intermediate rotor part that is located between the inner stator and the outer stator and comprises an array of pole pieces, in which the pole pieces of the intermediate rotor part shape a magnetic flux acting between the inner and outer stators, and whereby in use the controller is arranged to control a torque applied to the rotor part by moving the pattern of magnetic poles of the inner stator around an axis of a torque generator.

The present invention relates to a steering system for a vehicle, the steering system comprising a steering unit comprising a steering wheel; a steering-feel unit for generating a steering reaction force when the steering wheel is rotated, the steering-feel unit comprising at least one spring coupled to the steering wheel, and an actuator for changing a spring loading and/or spring stiffness of the at least one spring. The steering system further comprises a position sensor for measuring an angular position of the steering wheel and/or a speed sensor for measuring a vehicle speed; and a control unit for controlling the actuator, the control unit operationally coupled to the actuator and to the position sensor and/or the speed sensor, wherein the actuator is configured to change the spring loading and/or spring stiffness depending on the angular position of the steer-ing wheel and/or the vehicle speed.

A steering control device includes control circuitry configured to perform synchronization control. The synchronization control includes a target synchronization angle calculating process of calculating a target synchronization angle that is a steering-side rotation angle satisfying a predetermined correspondence relationship with respect to a turning-side rotation angle; a target relay angle calculating process of calculating a target relay angle that is located closer to a first side in a circumferential direction than a first-side angle is, the first-side angle being one of the steering-side rotation angle and the target synchronization angle and being located closer to the first side than another of the steering-side rotation angle and the target synchronization angle is; and a motor driving process of operating a steering-side motor such that the steering-side rotation angle reaches the target synchronization angle after operating the steering-side motor such that the steering-side rotation angle reaches the target relay angle.