G05G2009/0477

Magnetorheological fluid joystick systems reducing work vehicle mispositioning

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick, and a joystick position sensor. The MRF joystick resistance mechanism is controllable to selectively resist movement of the joystick relative to the base housing. The controller architecture is configured to: (i) when detecting operator rotation of the joystick in an operator input direction, determine whether continued joystick rotation in the operator input direction will misposition the work vehicle in a manner increasing at least one of work vehicle instability and a likelihood of work vehicle collision; and (ii) when determining that continued joystick rotation will misposition the work vehicle, command the MRF joystick resistance mechanism to generate an MRF resistance force deterring continued joystick rotation in the operator input direction.

Multi-axis gimbal mounting for controller providing tactile feedback for the null command

A gimbal support that senses rotational displacement and provides haptic feedback in one, two or three dimensions of a manually-operated control member used to generate control inputs using a single hand while also limiting cross-coupling.

Work vehicle magnetorheological fluid joystick systems operable in modified centering modes

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick bias mechanism coupled to the joystick and exerting a centering force urging the joystick to return to the centered position when moved therefrom. The controller architecture is operable in a modified centering mode in which the controller architecture: (i) determines when the joystick begins return toward the centered position due to the centering force applied by the joystick bias mechanism; and (ii) when so determining, commands the MRF joystick resistance mechanism to modify a rate at which the joystick returns to the centered position by varying the MRF resistance force applied to the joystick.

TRANSMITTER
20170291113 · 2017-10-12 ·

There is provided a transmitter for facilitating control of a flying object including an elevation control lever 22 for controlling a flight height of a helicopter 1, a cover 24 through which the elevation control lever 22 passes via an opening 26, a step 27 formed on an edge of the opening 26, and a rotation member 28, which rotates, disposed to a backside of the cover 24, where apart of the cover 24 is formed into a curved surface which overlaps a curved surface of the rotation member 28, and rotational speeds of motors 11, 12 internally mounted on the helicopter 1 are set corresponding to the step 27.

Multi-axis gimbal mounting for controller providing tactile feedback for the null command

A gimbal support that senses rotational displacement and provides haptic feedback in one, two or three dimensions of a manually-operated control member used to generate control inputs using a single hand while also limiting cross-coupling.

WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS OPERABLE IN MODIFIED CENTERING MODES
20210341960 · 2021-11-04 ·

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick bias mechanism coupled to the joystick and exerting a centering force urging the joystick to return to the centered position when moved therefrom. The controller architecture is operable in a modified centering mode in which the controller architecture: (i) determines when the joystick begins return toward the centered position due to the centering force applied by the joystick bias mechanism; and (ii) when so determining, commands the MRF joystick resistance mechanism to modify a rate at which the joystick returns to the centered position by varying the MRF resistance force applied to the joystick.

MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING WORK VEHICLE MISPOSITIONING

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick, and a joystick position sensor. The MRF joystick resistance mechanism is controllable to selectively resist movement of the joystick relative to the base housing. The controller architecture is configured to: (i) when detecting operator rotation of the joystick in an operator input direction, determine whether continued joystick rotation in the operator input direction will misposition the work vehicle in a manner increasing at least one of work vehicle instability and a likelihood of work vehicle collision; and (ii) when determining that continued joystick rotation will misposition the work vehicle, command the MRF joystick resistance mechanism to generate an MRF resistance force deterring continued joystick rotation in the operator input direction.

MASTER MANIPULATOR DEVICES FOR ROBOTS AND ROBOTS THEREOF

The present disclosure provides a master manipulator device for a robot. The master manipulator device comprises an end control assembly and a posture adjustment member. The posture adjustment member includes a first rotation mechanism and a second rotation mechanism. The first rotation mechanism is connected to the end control assembly, and the second rotation mechanism is connected to the first rotation mechanism. The end control assembly drives the first rotation mechanism to rotate around a rotation axis of the first rotation mechanism, and the end control assembly also drives the first rotation mechanism and the second rotation mechanism to rotate around a rotation axis of the second rotation mechanism.

MULTI-AXIS GIMBAL MOUNTING FOR CONTROLLER PROVIDING TACTILE FEEDBACK FOR THE NULL COMMAND

A gimbal support that senses rotational displacement and provides haptic feedback in one, two or three dimensions of a manually-operated control member used to generate control inputs using a single hand while also limiting cross-coupling.

Input device and method for operating an input device
11300990 · 2022-04-12 · ·

An input device, such as a joystick, has an operating device, a magnetorheological brake device, and a controller for activating the brake device. An operating lever is disposed on a supporting structure for pivoting around at least one pivot axis. The brake device is coupled with the pivot axis for controlled damping of a pivoting motion of the operating lever. The brake device has a rotary damper with two components, namely, an inside component and an outside component. The outside component radially surrounds the inside component and a damping gap is formed in between that is filled with a magnetorheological medium. The damping gap can be exposed to a magnetic field to damp a pivoting motion between the two contrapivoting components about an axis. One of the components has radial arms equipped with an electric coil whose winding extends adjacent to and spaced apart from the axis.