A work machine determines, when a request to restart an engine is made, whether or not a reason indicated by stop information stored in a memory is a reason related to locking of the work portion. The machine sets an operation mode of the engine and a work portion to a safe mode if it determines that the reason indicated by the stop information is a reason related to locking of the work portion. The safe mode is an operation mode for lessening damage resulting from causing the engine and the work portion to work during the work portion locked or damage resulting from an object coming into contact with the work portion during the engine and the work portion working.

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.

The present invention discloses a protective member, a blade assembly, and a lawnmower. The lawnmower includes: a body, a cutting deck, and a blade assembly. The cutting deck is disposed on the body. The blade assembly is connected to the cutting deck to rotate along with the cutting deck. The blade assembly includes a blade provided with a cutting portion and a protective member disposed outside the blade to avoid mistouching the cutting portion, the blade is connected to the cutting deck, and at least a part of a lateral edge of the cutting portion is exposed from the protective member to facilitate cutting. In this way, the arrangement of a protective member can prevent a cutting portion of a blade from directly contacting a person, to prevent the person from being cut by the blade, so that the use safety of the lawnmower can be improved, the blade can be protected, and the service life of the blade can be extended.

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 control system including a drive system and a blade system; a collision sensor; a main board having a main processor and in communication with the collision sensor, the drive system, and the blade system; the collision sensor, upon sensing a collision, capable of transmitting a collision signal to the main processor; the main board capable of transmitting an adjustment command to the drive system or the blade system; a vision sensor; a vision processor in communication with the vision sensor and the main processor, and capable of determining whether the image data represent an obstacle; the vision sensor capable of transmitting image data to the vision processor; when the vision processor determines the image data represent an obstacle, the vision processor capable of transmitting a collision-replicating signal to the main processor, prompting the main board to transmit the adjustment command to the drive system and/or the blade system.

Apparatus, systems, and methods for operating an autonomous vehicle. In some embodiments, the vehicle is embodied as a mower having a downwardly extending sidewall and a cutting blade assembly. The cutting blade assembly is adapted to cut grass along a path defining a proximal cut edge located at a first distance from the sidewall when the mower is configured in a first operating mode, and at a second distance from the sidewall when the mower is configured in a second operating mode. The mower is adapted to automatically switch from the first operating mode to the second operating mode when an electronic controller associated with the mower determines a local area of operation of the mower is free of unknown objects.

A cutting blade piece protective structure that prevents an obstacle from coming into direct contact with a blade portion of a cutting blade piece, saving light weight, saving a replacement cost at the time of breakage, and inhibiting lawn mowing performance by the cutting blade piece, is provided, and the lawn mower that includes the blade disk to be rotationally driven and at least one cutting blade piece attached to the outer peripheral portion of the blade disk, a blade guard for preventing an obstacle from coming into contact with the blade portion of the cutting blade piece is provided on the cutting blade piece. Preferably, the blade guard is attachable to and detachable from the cutting blade piece.

The present invention relates to a mower, comprising a cutting mechanism, configured to execute a cutting operation; a machine body, wherein the machine body is connected with a side part protection which is located in the side of the cutting mechanism to establish a protection barrier in the side of the cutting mechanism; and a bottom protection, located below the cutting mechanism to establish a protection barrier below the cutting mechanism, wherein the bottom protection is provided with a grass inlet. According to the above mower, a human body is prevented from making contact with the cutting mechanism from the side direction of the cutting mechanism, the bottom protection can prevent the human body from making contact with the cutting mechanism from the lower side of the cutting mechanism, and the bottom protection is provided with a grass inlet, such that the cutting can be smoothly performed; due to the arrangement of the bottom protection, the side part protection and cutting mechanism can be set to approach to the outer side of the mower as much as possible, thereby realizing the cutting of the edge of a lawn, and meeting the cutting and safety requirements at the same time.

Aspects hereof relate to a control system for a terrain working vehicle having an operator protection apparatus. In some aspects, the control system instructs and ceases an actuation of the operator protection apparatus to and between a raised position and a lowered position.

A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.