An auto-balancing transportation device having first and second wheels that are independently drivable. The device includes foot platforms, a control circuit and sensors. Device control is preferably achieved through the position or weight distribution of a rider's feet. The wheels may be arranged in parallel or non-parallel and the foot platforms may be located on the interior are exterior side of the wheels. The wheels may be coupled to one another in a manner that affords tilting, thereby increasing stability when executing a turn, among other benefits. Various embodiments and features are disclosed.

The present invention discloses a novel electric double-wheel balance car, comprising a bottom plate, a first wheel, a second wheel, a first pedal group and a second pedal group. The first wheel is provided with a first motor shaft connected with a first motor. The second wheel is provided with a second motor shaft connected with a second motor. The present invention has the characteristics that the first motor shaft is fixedly connected with the first pedal group, and the second motor shaft is fixedly connected with the second pedal group. The present invention has the advantages that the integral structure is simpler; assembly is more convenient; the bottom plate shares human gravity and bears uniform stress; the integral structure is durable, simpler to control and easy for a beginner to use; and motion states are respectively independently controlled by left foot and right foot.

A self-aligning tool guide has a holder for securing a portable power tool for working on a ceiling, a lifting mechanism, and a self-balancing chassis. The holder is mounted on the lifting mechanism. The lifting mechanism has a propulsion system for raising the holder parallel to a lifting axis. The self-balancing chassis has two wheels on a wheel axis and a drive coupled to the two wheels. A sensor serves for detecting a contact pressure of the holder, the contact pressure acting in the direction of gravitational force. The control station activates the propulsion system depending on the detected contact pressure.

The disclosure relates to a cleaning robot, controlling method thereof, and cleaning robot charging system, and more particularly, to a technology for a cleaning robot to select a charging device by taking into account whether the charging device is occupied and a distance to the charging device when the charging device is returning to the charging device for charging. The cleaning robot includes a main body; a movement module moving the main body; a communication module configured to request identification information of a charging device occupied by another cleaning robot to the other cleaning robot; and a controller configured to determine a charging device not occupied by the other cleaning robot based on the identification information of the charging device received from the other cleaning robot through the communication module, and to control the movement module to move the main body to the non-occupied charging device.

An electric vehicle includes a stem and a base with wheels. The base is at a first end of the stem, with symmetrical elements of the base opposed across a stem axis. Elements on each side include a wheel, a drive motor, a platform and pivot joints. The wheel has an axis of rotation. The drive motor is connected to the wheel. The platform is between the wheel and the stem. A first pivot joint connects the stem and the platform. A second pivot joint connects the platform and the wheel. In a first orientation, the platforms are substantially perpendicular to the stem and in a second orientation the platforms are substantially parallel to the stem. The wheel axes are substantially parallel to each other and are substantially perpendicular to the stem axis in the first orientation and the second orientation.

An auto-balancing transportation device configured for being ridden in a foot forward or sideways standing position. The rider platform has front and rear foot platform areas and two connecting members, located on opposite lateral sides of the device, that couple the front and rear platform areas. Two drive wheels are located under or through the platform. The front and/or rear platform areas are movable or twistable so as to alter the fore-aft tilt of one or more of the connecting members. Position sensors associated with each connecting member are used to drive a corresponding drive wheel. In this manner, differences in fore-aft tilt angle of the two connecting members achieves a turning of the device.

An auto-balancing transportation device having a compact form. Left and right foot platform sections are coupled for fore-aft tilt angle movement relative to one another. Left and right wheels are provided under the respective foot platforms. With a rider's weight directed primarily downward onto the wheels and not onto the coupling structure, the coupling structure may have sufficient space to house the battery. In addition, more efficient and lighter weight supports and bearing arrangements may be used in the coupling structure. Various embodiments are disclosed.

An auto-balancing transportation device having a wheel structure and foot platforms that pivot between an in-use and a stowed position. The pivot axis for each platform is provided within the wheel structure so that the force exerted by a rider when stepping on a foot platform is applied to the wheel structure at a point within the wheel structure, as opposed to external to it, which is unstable and may cause the device to tip over.

A system includes a support structure that includes a bottom surface and a connector plate pivotably connected to the bottom surface, and a device including a wheel, the device being releaseably connectable to the connector plate.

A non-backdrivable passive balancing system for a single-axle dynamically balanced robotic device includes a body that includes a distal end and a proximal end, a controller module, and an actuator communicatively coupled to the controller module of the single-axle dynamically balanced robotic device. The actuator receives an engagement signal from the controller module, the engagement signal corresponding to an indication that the dynamically balanced robotic device is stationary, and the actuator causes the linkage to move the body from a disengaged position to an engaged position such that the distal end of the body contacts a ground surface and supports the dynamically balanced robotic device in a substantially upright position.