A system and method for providing safety for a motorized mobile system (MMS) are optimized for accurate object detection, the method comprising generating one or more of a range measurement and a bearing measurement to an object using at least two sensors, wherein the range and bearing measurements have associated uncertainties.

Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.

Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.

Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.

A wheeled personal mobility device for transporting a person, an electric motor for use with the personal mobility device, a splined connection, an electromagnetic braking system and a steering engagement mechanism. The wheeled personal mobility device may be embodied as a wheeled personal mobility aid. The wheeled personal mobility device is reconfigurable between at least three configurations.

A self-leveling mechanism for a mobility device, the mobility device including a chassis configured to propel the mobility device on a surface, includes a leveling structure on which is mounted a user support for supporting a user of the mobility device. The leveling structure is connected to the chassis by a swivel connection that enables the leveling structure to swivel about the connection, and by two linearly displaceable connections that are laterally displaced from one another. Two linear actuators are each configured to displace one of the displaceable connections to adjust a distance between each displaceable connection and the chassis. A sensor for senses a tilt of the leveling structure and a controller is configured to operate the linear actuators in accordance with the sensed tilt.

Disclosed is a wheelchair power apparatus for electronic driving conversion. The wheelchair power apparatus for electronic driving conversion includes: an electronic module combined with a combining means of a manual wheelchair, wherein the electronic module includes: a driving wheel in which an in-wheel motor is mounted; an operation handle located directly above the driving wheel; a connector connected directly below the operation handle; a steering housing mounted directly below the connector in such a way that one side of the connector can be moved forwards or backwards inside the steering housing; a combining unit mounted directly below the steering housing and combined with a coupling means of a wheelchair; a battery mounted at the front of the combining unit; and strut supports and collapsible bars mounted at right and left sides of the driving wheel, so that the manual wheelchair is converted into an electronic wheelchair.

Disclosed is a driving method of a wheelchair power apparatus for electronic driving conversion. It is an object of the present invention to provide a wheelchair power apparatus for electronic driving conversion, which can provide severely disabled people, for instance, patients with spinal cord injury, the weak or the old, who use wheelchairs, with convenience in movement, and convert a manual four-wheel wheelchair into an electronic three-wheel wheelchair just by detachably mounting the electronic module having electronic wheels to the existing manual four-wheel wheelchair.

A system and method for a motorized mobile chair use a plurality of sensors having a plurality of sensor types to detect a plurality of objects and generate sensor data about the detected objects, each of the detected objects being a person, the sensor data about the objects comprising a plurality of range measurements to the people and a plurality of bearing measurements to the people. The system has at least one processor to receive the sensor data about the people, group the detected people into a plurality of zones, determine a closest person in each zone, and generate one or more control signals to cause the motorized mobile chair to match a speed and a direction of the closest person in the zone corresponding to a direction of travel of the motorized mobile chair while at least approximately maintaining a selected space to the closest person in the zone corresponding to the direction of travel of the motorized mobile chair.

The present invention relates to an indoor and outdoor mobility system 1 forming a mobility device 10 for people with walking disability, the system comprising a base 20 two indoor front wheels 30, which can be attached to the base 20; two outdoor front wheels 40, which can be removably attached to the base 20, wherein the outdoor front wheels 40, when attached to the base 20 comprise a wider track width compared to the indoor wheels 30; indoor back wheels 52 which can be attached to the base 20; and outdoor back wheels 62 which can be removably attached to the base 20, wherein the outdoor back wheels 62, when attached to the base 20 comprise a wider track width compared to the indoor back wheels 30. The invention further comprises a method for the change of a mobility device for people with walking disability from an indoor to an outdoor use.