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.

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.

An agricultural machine includes a hitching support, at least one tool or group of tools, at least one support arm which is connected to the hitching support by a first joint and to the tool or tool group, and which is mounted so as to pivot about a transfer axis between operational and raised positions, and a safety device making it possible to carry out a safety movement under the effect of pressure. The safety device includes a lift connected to the hitching support by a second joint. The second joint is offset relative to the first joint in the direction of travel. The safety movement can include a second movement phase during which the lift is able to move the tool or the group of tools away from the ground.

A radio-controlled mower has a frame, an engine unit, rolling bodies configured to move the frame over an area of ground, a central cutting unit, and side cutting units. The frame and the side cutting units are mutually movable.

The cutter guard assembly includes a cutter bar assembly, a window frame, and a floor sheet. The cutter bar assembly has a cutter bar and a reciprocating knife assembly operatively connected to a knife drive. The window frame is rigidly attached to the cutter bar. The window frame includes an opening through which a knife arm of the reciprocating knife assembly extends through. The floor sheet extends rearwardly from the cutter bar and pivots relative to the window frame.

A solar energy generated and wirelessly charged mowing system includes a mower and a wireless transmitting device. The mower includes a frame including a driving seat and a wheel set, an electrical driving device connected to the wheel set, an operating device adapted to be operated by a driver, a trimmer, an energy storage device, a solar energy converting device, a wireless receiving device, and a controlling device. The trimmer mows while the frame is moving. The energy storage device includes a rechargeable battery. The solar energy converting device has a solar panel for receiving and converting a solar energy to a first electricity. The wireless receiving device receives and converts a wireless charging energy of the wireless transmitting device to a second electricity. The first electricity and the second electricity charge the rechargeable battery. The controlling device controls the electrical driving device to drive the frame to move.

The present disclosure relates to an outdoor robotic work tool (1) adapted for a forward travelling direction (D) and comprising an environmental detection system (19) that comprises a set of outer detector transceivers (2a, 2b) and a set of inner detector transceivers (3a, 3b), where the inner detector transceivers (3a, 3b) are positioned between the outer detector transceivers (2a, 2b). Each detector transceiver (2a, 2b; 3a, 3b) is adapted to transmit signals (4a, 4b; 5a, 5b) and to receive reflected signals (6a, 6b, 9) that have been reflected by an object (10, 11). The outer detector transceivers (2a, 2b) are associated with outer coverage main directions (7a, 7b) that are directed at corresponding outer angles (α.sub.a, α.sub.b) to the forward travelling direction (D), and the inner detector transceivers (3a, 3b) are associated with inner coverage main directions (8a, 8b) that are directed at corresponding inner angles (β.sub.a, β.sub.b) to the forward travelling direction (D). The inner angles (β.sub.a, β.sub.b) have magnitudes that exceed the magnitudes of the outer angles (α.sub.a, α.sub.b), and the inner coverage main directions (8a, 8b) intersect in front of the outdoor robotic work tool (1) in the forward travelling direction (D).

A work vehicle has display devices and cameras coupled to display feeds at display areas. The cameras include a first set on the first side, second side, and central location relative to the first FOV and a second set on a first side, second side, and central location relative to the second FOV. A control system is configured to: in a first mode, display a first set of feeds from the first side, second side, and central location of the display areas so that the feeds are arranged at the first side, second side, and central location relative to the first FOV; and in a second mode, display a second set of feeds from the first side, second side, and central location of the second set at display areas so that the feeds are arranged at the first side, second side, and central location relative to the second FOV.

An autonomous self-propelled mowing vehicle includes a frame fitted with a drive mechanism, a mowing device for mowing plants, a bumper device, and a control unit. The bumper device includes a first and a second impact detector. The first impact detector is depressible up to a stop and is provided with a first switch which emits a first signal to the control unit at a first switching point, if the first impact detector is depressed beyond the switching point. The second impact detector is deformable and locally depressible, and is provided with a second switch which emits a second signal to the control unit if the second impact detector is depressed at least beyond a predetermined depression threshold. The control unit is configured to stop the drive mechanism upon receiving the second signal, and to regulate the drive mechanism in such a way that the speed of the mowing vehicle is reduced to a lower mowing speed upon receiving the first signal without receiving the second signal. This prevents plants to be mowed from pushing the bumper away across the bumper width beyond the switching point of the first impact detector, without losing its long depressibility, because the second impact detector, which itself has a much smaller depressibility, detects obstacles at the lower (mowing) speed by being depressed itself.