A walk-behind lawnmower including a deck including a shroud, a front end portion, and a plurality of ribs coupled to the front end portion and defining a contact plane, a first motor, a rechargeable battery, and a blade rotatably driven by the first motor about a rotational axis, the blade having a tip defining a blade circle about the rotational axis. A radially inner surface of the shroud is disposed a first distance from a nearest point of the blade circle, the first distance being between 0.12 inches and 0.38 inches, a radially outer surface of the shroud is disposed a second distance from a nearest point of the blade circle, the second distance being between 0.5 inches and 0.75 inches, and the contact plane is disposed a third distance from a nearest point of the blade circle, the third distance being between 1.75 inches and 2.75 inches.

A lawnmower may include an inertial measurement device configured to capture data indicative of an orientation of a housing of the lawnmower. The lawnmower may also include a controller coupled (i) to a motor configured to rotate one or more cutting blades and (ii) to the inertial measurement device. The controller may be configured to receive, from the inertial measurement device, the data indicative of the orientation of the housing. The controller may be further configured to determine a three-dimensional position of the housing based on the data. The three-dimensional position of the housing may indicate whether the orientation of the housing is desirable for operation of the lawnmower. The controller may be further configured to control the motor based on the three-dimensional position of the housing.

A lawn mower is provided with a housing that has a discharge opening for discharging cut material. A covering device is arranged at the housing and is provided with a cover and a locking device. The cover can pivot about a pivot axis. The cover covers the discharge opening in a closed state of the cover and opens the discharge opening in an open position of the cover. In the closed state of the cover, the cover can be locked by the locking device in a locked position of the cover. The cover is moveable relative to the housing in a direction of the pivot axis. The cover is unlocked from the locked position of the cover by a movement of the cover in the direction of the pivot axis.

An agricultural mowing system includes: a driving vehicle having a steerable axle and a pivotable tongue and defining a travel axis; a first mower coupled to the driving vehicle; a second mower coupled to the tongue; a tongue actuator configured to pivot the tongue; a tongue angle sensor configured to output signals corresponding to a tongue angle of the tongue; and a controller operatively coupled to the tongue actuator and the tongue angle sensor. The controller is configured to: determine a lateral overlap or underlap of the mowers exceeds a threshold value based at least partially on the tongue angle and a steering angle of the steerable axle; determine a correction angle needed for the tongue to pivot such that the lateral overlap or underlap no longer exceeds the threshold value; and output a correction signal to the tongue actuator to pivot the tongue by the correction angle.

Provided is electric power equipment that allows a battery to be installed and removed with ease. The electric power equipment (1) includes a main body (2) defining a battery receiving recess (40) having an open upper end, and a battery (20) configured to be received in the battery receiving recess, wherein an upper part of a front end part of the battery is provided with a projection (108) projecting in a forward direction, and a rear end part of the battery is provided with a grip, and wherein an upper edge of the front end part of the battery receiving recess is provided with a supporting surface (36) configured to support a lower surface of the projection at least when the battery is being removed from the battery receiving recess.

A method docks an autonomous mobile green area maintenance robot to a docking station. An electrical conductor arrangement runs in the region of the docking station, wherein the conductor arrangement is designed such that a periodic current flows through the conductor arrangement, wherein the current generates a periodic magnetic field. The green area maintenance robot has two magnetic field sensors, wherein the two magnetic field sensors are designed such that the magnetic field respectively causes a periodic sensor signal in the magnetic field sensors. The method has the steps of: determining a phase shift between the two sensor signals or signals based on the sensor signals, and controlling movement of the green area maintenance robot for docking on the basis of the determined phase shift.

A charging control system includes a lawn mower that has a battery and performs a lawn mowing work while traveling autonomously, and a charging station for charging the battery. The lawn mower includes a period calculator for calculating a shutoff period of supply power supplied from the charging station, and a first communication unit. The charging station includes a second communication unit communicating with the first communication unit, an information acquisition unit for acquiring shutoff period information indicating the shutoff period from the first communication unit via the second communication unit, a switch for shutting off the supply power, and a shutoff controller for controlling the operation of the switch. The shutoff controller releases the shutoff of the power supply to the lawn mower based on the shutoff period information.

The present invention relates to a control arrangement (1) for a self-propelled robotic lawnmower (3) having a cutting unit (5, 6) configured to rotate during operation of the lawnmower (3). The control arrangement (1) is configured to navigate the lawnmower (3) along a navigation path (7) comprising adjacent mowing strokes (S, Sp, Su). The control arrangement (1) is configured to set a rotation direction (rl, r2) of the cutting unit (5, 6) based on the navigation path (7), or is configured to select the navigation path (7) based on a rotation direction (rl, r2) of the cutting unit (5, 6). By adapting the rotation direction (rl, r2) or the navigation path (7), the direction (d1, d2) to which grass clippings are ejected, i.e. towards the previous mowing stroke (Sp) or to a future mowing stroke (Su) is controlled thereby reducing energy consumption or grass decomposition time.

Disclosed in the present invention are a grass-cutting robot and a control method therefor. The grass-cutting robot comprises a travelling apparatus, a motive power apparatus, a detection apparatus and a control apparatus. The travelling apparatus is configured to facilitate travel of the grass-cutting robot on a physical surface in a first direction. The motive power apparatus is configured to drive the travelling apparatus. The detection apparatus is configured to detect an attitude of the grass-cutting robot. The control apparatus is configured to apply a control signal to the grass-cutting robot when the attitude meets a predetermined condition, the control signal causing resistance to arise in the travelling apparatus, and the resistance causing a tendency of at least part of the travelling apparatus to move in the first direction to be hindered. Further disclosed in the present invention is a control method for a grass-cutting robot. The grass-cutting robot and control method therefor according to one or more embodiments of the present invention can improve the precision of grass-cutting robot control, and increase work effectiveness and safety.

An autonomous electric mower for mowing a lawn comprises a frame, drive wheels, cutting deck, computer, a Lidar sensor, at least one color and depth sensing camera. The computer is programmed and operable to: determine the location of the mower; detect obstacles; and to instruct the mower to avoid the obstacles. Advantageously, the system is operable to analyze the data from the multiple sensors and to instruct the mower to continue to safely operate and cut the lawn despite one or more of the sensors being obstructed. Novel route planning methods are also described.