An electrical passenger car, the electrical passenger car including: at least two electrically driven motors; speed control electronics; and wheels, where the wheels include a front wheel and a back wheel, where the back wheel radius is at least 20% greater than the front wheel radius, where the speed control electronics control the at least two electrically driven motors to provide a greater torque to the front wheel than to the back wheel, and where the speed control electronics control the at least two electrically driven motors to provide a greater torque to the back wheel than to the front wheel.

A modular, reconfigurable frame that can be combined into multiple standardized segments to create different core vehicle configurations is described herein. The frame includes a plurality of components that affix together universally to make multiple versions of cycle, vehicle, and airframe styles. The reconfigurable frame includes a quick pin and fastener that allows for transportation platforms to be incorporated into the frame in a modular fashion.

An electrical passenger car, the electrical passenger car including: at least two electrically driven motors; speed control electronics; and wheels, where the wheels include a front wheel and a back wheel, where the back wheel radius is at least 20% greater than the front wheel radius, where the speed control electronics control the at least two electrically driven motors to provide a greater torque to the front wheel than to the back wheel, and where the speed control electronics control the at least two electrically driven motors to provide a greater torque to the back wheel than to the front wheel.

A rotatable chair is provided with a launching member and a set of wheels. The chair includes: (i) a seat; (ii) a base; (iii) a plurality of framing members; (iv) a joystick; (v) a launching member; (vi) a nozzle; (vii) a set of motorized wheels; (viii) a directional wheel; (ix) an emergency stop button; and (x) a plurality of detachment devices to easily and quickly dismantle the chair into easily transportable parts. The base encloses a motor, a battery, a set of wheels and a water tank. The joysticks are configured to control the movement of the chair. The launching member can shoot a plurality of balls. The nozzles are configured to spray water from the water tank. The set of motorized wheels and the directional wheel are configured to move and rotate the chair, respectively. The emergency stop button is configured to stop the chair from moving.

A rotatable chair is provided with a launching member and a set of wheels. The chair includes: (i) a seat; (ii) a base; (iii) a plurality of framing members; (iv) a joystick; (v) a launching member; (vi) a nozzle; (vii) a set of motorized wheels; (viii) a directional wheel; (ix) an emergency stop button; and (x) a plurality of detachment devices to easily and quickly dismantle the chair into easily transportable parts. The base encloses a motor, a battery, a set of wheels and a water tank. The joysticks are configured to control the movement of the chair. The launching member can shoot a plurality of balls. The nozzles are configured to spray water from the water tank. The set of motorized wheels and the directional wheel are configured to move and rotate the chair, respectively. The emergency stop button is configured to stop the chair from moving.

A self-propelled device determines an orientation for its movement based on a pre-determined reference frame. A controller device is operable by a user to control the self-propelled device. The controller device includes a user interface for controlling at least a direction of movement of the self-propelled device. The self-propelled device is configured to signal the controller device information that indicates the orientation of the self-propelled device. The controller device is configured to orient the user interface, based on the information signaled from the self-propelled device, to reflect the orientation of the self-propelled device.

A self-propelled device determines an orientation for its movement based on a pre-determined reference frame. A controller device is operable by a user to control the self-propelled device. The controller device includes a user interface for controlling at least a direction of movement of the self-propelled device. The self-propelled device is configured to signal the controller device information that indicates the orientation of the self-propelled device. The controller device is configured to orient the user interface, based on the information signaled from the self-propelled device, to reflect the orientation of the self-propelled device.

An electrical passenger car, the electrical passenger car including: at least two electrically driven motors; speed control electronics; and wheels, where the wheels include a first front wheel, a second front wheel, a first back wheel, and a second back wheel, where the first back wheel radius is at least 20% greater than the first front wheel radius, where the speed control electronics control the at least two electrically driven motors to provide a greater torque to the first front wheel than to the first back wheel, and where the electrical passenger car is designed to travel for a greater distance for the same axial to wheel friction energy loss than a similar electrical passenger car having wheels of a smaller radius.

Disclosed herein is a transport device with a platform that pivots relative to a frame of the transport device. A pivot angle of the platform is altered with an actuator controlled by a transport computer. The pivot angle is based, at least in part, on a predicted change in velocity, a determined change in ground surface, a determined ground slope, and a center of gravity of a user and of the transport device.

Disclosed herein is a transport device with a platform that pivots relative to a frame of the transport device. A pivot angle of the platform is altered with an actuator controlled by a transport computer. The pivot angle is based, at least in part, on a predicted change in velocity, a determined change in ground surface, a determined ground slope, and a center of gravity of a user and of the transport device.