The present disclosure relates to a self-propelled robotic tool (1) and a method in a self-propelled robotic tool (1), being used to detecting lifting of the self-propelled robotic device from the ground. The method includes collecting (21) driving data (31) related to the driving of a wheel (5), collecting (23) measured inertia data from an inertial measurement unit (13), IMU, in the self-propelled robotic tool, determining (25), using an estimation function (33), a residual parameter corresponding to a differential between said measured inertia data and estimated inertia data resulting from said driving data being input to said estimation function, and determining a lifting condition based on the residual parameter.

An autonomous mobile device and a method for controlling the same are provided. The method includes: performing first positioning on the autonomous mobile device to acquire a first current pose of the autonomous mobile device in a first coordinate system; performing second positioning on the autonomous mobile device when determining, based on the first current pose and a first preset pose of a charging station in the first coordinate system, that a distance between the autonomous mobile device and the charging station is less than or equal to a first preset distance, to obtain a second current pose of the autonomous mobile device in a second coordinate system, and determining, based on the second current pose and a second preset pose of the charging station in the second coordinate system, a second planned path for directing the autonomous mobile device to a docking position of the charging station.

A lawn maintenance device has a transverse center line, a frame, and a power source including an output shaft attached to the frame. The lawn maintenance device further includes a rotating cutting blade. A left side is located on one side of the transverse center line and a right side located on a second side of the transverse center line. A plurality of ground engaging members are attached to the frame enabling movement of the lawn maintenance device along an associated driven surface. The ground engaging members on the left side are located at a first distance from the transverse center line that is different from a second distance that those on the right side are located from the transverse center line. Another example includes ground engaging members on opposite sides of the lawn maintenance device being located at different distances from a central axis of the cutting blade.

A controlling method of a robot lawn mower includes a mowing procedure, an interruption determining procedure and an interrupting procedure. The interruption determining procedure includes steps of receiving sensing data indicating a current sensing result related to at least one of surrounding environment or an operation status of the robot lawn mower, and determining whether an interruption condition related to at least one of an environment factor or an operation factor of the robot lawn mower is met. When it is determined that the interruption condition is met, the interrupting procedure is executed, and the robot lawn mower moves to a preset standby location.

An adaptive engine speed control system for a grass mowing machine having an internal combustion engine, a hydrostatic traction drive circuit and a hydraulic mowing circuit for operating a plurality of cutting units. A controller provides a traction feedback output signal if the grass mowing machine is moving at an actual ground speed that is below a pedal based desired ground speed, and uses the traction feedback output signal to command the internal combustion engine to an increased speed above a pedal based engine speed control range.

A utility vehicle having a magnetic panel movably and removably coupled thereto. The vehicle includes a frame carrying a prime mover and ground engaging members operatively attached to the frame. The vehicle also include includes a panel extending between a first end region and a second end region. The first end region of the panel is operatively coupled to the frame such that panel is both movably and removably attached to the frame. One or more magnets are positioned between the portion of the frame and an inner surface of the panel proximate the second end region of the panel such that the second end region of the panel is adapted to be removably couplable to the control tower via the one or more magnets.

A battery management system for a lawnmower that can include a first switch configured to issue a wake-up signal in response to a wake-up input, issue a battery status request signal in response to a battery status input, and issue a shut-down signal in response to a shut-down input. A first controller can be configured to, switch the second switch to an ON state to electrically connect the battery to the electrically powered device when the first controller receives the wake-up signal, cause the display to display information indicative of a status of the battery when the first controller receives the battery status request signal, and switch the second switch to an OFF state to terminate output from the battery to the electrically powered device when the first controller receives the shut-down signal.

A debris-collecting apparatus includes a draft inducer operable to draw air and debris, an input portion for receiving incoming air and debris caused by operation of the draft inducer, and a bagging portion. The bagging portion includes a hood having an arcuate portion, a bag removably positioned below the hood and having an inner face, and a bagging passage for directing the air and debris from the input portion to the hood. The arcuate portion extends from the bagging passage to the bag such that the air and debris from the bagging passage travels along the arcuate portion and thereafter apply a dislodging force to dislodge debris collected at the inner face of the bag.

A mower including a handle assembly, a grip moveable relative to the handle assembly, a sensor operable to generate an output signal based on a position of the grip relative to the handle assembly, a drive assembly, and a controller coupled to the sensor and the drive assembly. The controller receives the output signal and controls the drive assembly according to the output signal.

A cutter blade for a mower is disposed inside a housing of the mower and rotatably driven about a vertical axis. The cutter blade includes a blade body a blade portion provided at least at a part of a rotational direction-wise front end portion of the blade body, and a wind generating portion provided at least at a part of a rotational direction-wise rear end portion of the blade body, the wind generating portion extending more upwards than the blade portion. A thickness of the wind generating portion at the rotational direction-wise rear end portion is smaller at least partially than a thickness of the remaining part of the wind generating portion.