An autonomous robotic lawnmower (1) is disclosed. The robotic lawnmower (1) comprises a driving unit (3) comprising one or more drive wheels (5) and a cutting unit (7) arranged to cut grass when in a cutting position relative a ground surface (9). The lawnmower (1) further comprises a folding mechanism (11) allowing the cutting unit (7) to be pivoted relative the driving unit (3) around a pivot axis (ax) from the cutting position to a pivoted position.

An apparatus and system for a remote control that can be added to a riding tractor mower to allow for the tractor mower to be operated, controlled, and steered by an operator using the hand held control at a location distanced from the tractor mower. An apparatus comprising a hand held controller wirelessly connected to a processor mounted to the tractor mower using a customized bracket that can be electrically connected to the tractor mower and a customized electrical circuit and hydraulic system mounted to the tractor mower using customized brackets and operably connected to the tractor mower's existing electrical and hydraulic systems that can be used to control the operation of the tractor mower.

An autonomous lawn mower is described. The autonomous lawn mower comprises a chassis supporting a podium. In some examples, the podium comprises an upper portion and a lower portion, where the upper portion may support one or more sensors, antennas and/or cameras that may be used to provide environmental information regarding the surroundings of the autonomous lawn mower. The upper portion may be detached from the lower portion such that the upper portion is calibrated prior to the upper portion being coupled to the lower portion.

A cell module assembly includes multiple lithium-ion battery cells connected in parallel and an electronic controller. The electronic controller is programmed to receive useful life data for a useful life indicator of the battery cells, save the life data to memory to create a life data history, determine a life measurement based on the life data history, compare the life measurement to a first end of life threshold, determine if the life measurement has met the first end of life threshold, provide a first end of life output indicating that the life measurement has met the first end of life threshold, compare the life measurement to a second end of life threshold, determine if the life measurement has met the second end of life threshold, and provide a second end of life output indicating that the life measurement has met the second end of life threshold.

A battery pack includes a housing, rechargeable lithium-ion battery cells enclosed in the housing, terminals, a processing circuit, and a communications interface. The processing circuit is configured to control a supply of electrical power from the rechargeable lithium-ion battery cells to a positive terminal and a negative terminal in response to receiving signals from data terminals. The signals from the data terminals include operational information that includes at least a condition of an electric motor on power equipment coupled with the data terminals. The communications interface is configured to communicate over a wireless communication protocol to receive an identification of a type of power equipment coupled with the plurality of terminals. The processing circuit is configured to adjust one or more functions of the battery pack based upon identification data received from the communications interface, which includes the type of power equipment that is coupled with the plurality of terminals.

A lawn mower includes a pair of electric motors configured to drive respective driven wheels and a control assembly. The control assembly includes a controller configured to control operation of the pair of electric motors, a bracket, a pivot bar, and rotation assembly. The rotation assembly is configured to rotatably mount the pivot bar to the bracket such that the pivot bar is configured to rotate between a forward position, a neutral position, and a rear position about a first axis and between an operative position and a stopped position about a second axis. The control assembly also includes a magnet and a position sensor spaced apart from the magnet. The position sensor is configured to detect rotation of the pivot bar about the first axis. The lawn mower also includes a return-to-neutral assembly configured to bias the pivot bar toward the neutral position about the first axis.

A lawn mower includes a pair of electric motors configured to drive respective driven wheels and a control assembly. The control assembly includes a controller configured to control operation of the pair of electric motors, a bracket, a pivot bar, and rotation assembly. The rotation assembly is configured to rotatably mount the pivot bar to the bracket such that the pivot bar is configured to rotate between a forward position, a neutral position, and a rear position about a first axis and between an operative position and a stopped position about a second axis. The control assembly also includes a magnet and a position sensor spaced apart from the magnet. The position sensor is configured to detect rotation of the pivot bar about the first axis. The lawn mower also includes a return-to-neutral assembly configured to bias the pivot bar toward the neutral position about the first axis.

A transmission housing (1) which can be coupled to the drive shaft (21) of an electric motor (20) to form a gearbox (22), the transmission housing (1) comprising a housing body (2) defining a cavity (4), and housed at least partially inside the cavity (4)—a rotary drive member (5),—an output shaft (6) and,—a device (7) for transmitting the rotational movement of the rotary drive member (5) to the output shaft (6), characterised in that the rotary drive member (5) is supported inside the cavity (4) of the housing body (2) by one or more guide members (8) and comprises a wall (9) and two coaxial helical teeth (10) created from a single part with the wall (9) and arranged on either side of the wall (9), the helical teeth (10) being configured to generate axial forces in opposite directions.

A method includes operating an electric implement to move or cut material in an outdoor environment, wherein operating the electric implement creates acoustic sound and managing the acoustic sound by selecting an operating frequency for the electric implement and controlling an electric motor of the electric implement in accordance with the operating frequency.

A method includes operating an electric implement to move or cut material in an outdoor environment, wherein operating the electric implement creates acoustic sound and managing the acoustic sound by selecting an operating frequency for the electric implement and controlling an electric motor of the electric implement in accordance with the operating frequency.