A system for use with a mobile device includes at least one sensor to sense a variable related to tilting of the mobile device and at least one activatable system in operative connection with the sensor. The at least one activatable system increases stability of the mobile device upon actuation/change in state thereof on the basis of data measured by the at least one sensor. A variable related to tilting includes variables that indicate concurrent, actual tilting as described herein as well as variables predictive of imminent tilting. Activatable systems hereof change state upon actuation or activation to increase stability of the mobile device by reducing, eliminating or preventing tilting.

A family of vehicles is presented which exploit dynamic controls to stabilize in-line two wheeled vehicles. The stabilization results in improved safety at high speeds and on uncooperative surfaces. Stabilization affords balance at zero speed without auxiliary support means. Transformational wheel base length affords high visibility at low speeds and low drag at high speeds. In wheel chair configurations transforming wheel base length allows navigation up and down stairs.

A powered balancing mobility device that can provide the user the ability to safely navigate expected environments of daily living including the ability to maneuver in confined spaces and to climb curbs, stairs, and other obstacles, and to travel safely and comfortably in vehicles. The mobility device can provide elevated, balanced travel.

Vehicles are disclosed which have a lower center of gravity than existing all-terrain, amphibious, and unmanned ground vehicles due to the location of propulsion units and other vehicle components inside the wheels of the vehicle. The vehicles can climb over large obstacles yet are also able to corner at high speeds. The vehicles can be configured for direct manual operation or operation by remote control, and can also be configured for a wide variety of missions.

A moving device includes: two leg portions each including an end-portion wheel and an intermediate wheel; a placement portion supported by the two leg portions; and a control unit configured to control the two leg portions. The moving device is configured such that, under a state of four-wheel ground contact in which the end-portion wheel and the intermediate wheel are in contact with the ground, when the end-portion wheel is moved from the boarding area to the step of the escalator and/or when the end-portion wheel is moved from the step to the landing area of the escalator, a wheel speed of the end-portion wheel is controlled by the control unit.

A support device includes a base portion, a leg coupled to the base portion, the leg including an upper segment, a central segment pivotally coupled to the upper segment at a front wheel, a lower segment pivotally coupled to the central segment, a rear wheel coupled to the lower segment, and an engagement member coupled to the lower segment, where the engagement member is positionable between a disengaged position, in which at least a portion of the engagement member is positioned above the rear wheel, and an engaged position, in which at least a portion of the engagement member is positioned at or below the rear wheel.

In a four-wheel vehicle with vertically independently movable wheels (2, 2, 3, 3), diagonally opposite wheels (2, 2 or 3, 3) are connected to one another by respective cables (9, 90) guided over deflection rollers (11 to 15). The traction cable mounting makes it possible to adapt the height of the wheels in the event of equal loading of the individual wheels independently of the terrain.

A step-climbing attachment for a wheeled chair, the attachment comprising a first wheel having at least a hub and a rim spaced from the hub, the hub and rim defining an inner region, a second wheel having a different diameter than the first wheel, and the second wheel being rotatably mounted to an extending arm, the extending arm being movable relative to the first wheel between a first position and at least one second position by a controllable mechanism, wherein the controllable mechanism is housed at least partially within the inner region of the first wheel, wherein the second wheel is driven by rotation of the first wheel.

A powered balancing mobility device that can provide the user the ability to safely navigate expected environments of daily living including the ability to maneuver in confined spaces and to climb curbs, stairs, and other obstacles, and to travel safely and comfortably in vehicles. The mobility device can provide elevated, balanced travel.

In a four-wheel vehicle with vertically independently movable wheels (2, 2, 3, 3), diagonally opposite wheels (2, 2 or 3, 3) are connected to one another by respective cables (9, 90) guided over deflection rollers (11 to 15).

The traction cable mounting makes it possible to adapt the height of the wheels in the event of equal loading of the individual wheels independently of the terrain.