A mobile surface maintenance machine embodiment includes a mobile body, a solution tank for containing a cleaning fluid, wheels for supporting the mobile body, a maintenance tool(s), an output channel, an electric power source, a first electric motor, and a pressure washer. The pressure washer includes a spray wand, a pressure pump, and a second electric motor. The pressure pump is fluidly coupled to the spray wand and to the solution tank. The pressure pump is configured to pressurize the cleaning fluid supplied to the spray wand. The second electric motor is operatively coupled to and configured to drive the pressure pump. The second electric motor is configured to receive electric power from the electric power source and is commonly powered by the electric power source that provides power to the first electric motor. The second electric motor is separate from the first electric motor.

A self-driving device system includes a self-driving device, a charging station, and an adapter. The self-driving device can automatically walk and operate in a work area. The charging station is configured to charge the self-driving device. The adapter is configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station. The charging station includes at least an input interface and a first output interface. The input interface is configured to connect to the adapter to receive the low-voltage alternating current. The first output interface is configured to output the low-voltage alternating current to the self-driving device. The self-driving device includes a charging interface. The charging interface is configured to receive a low-voltage alternating current.

An energy storage system for a military vehicle includes a lower support, a battery supported on the lower support, a bracket coupled to the battery, and an upper isolator mount coupled between the bracket and a wall. The upper isolator mount is configured to provide front-to-back vibration isolation of the battery relative to the wall.

A method for operating an electric drivetrain of a working machine is provided wherein the drivetrain comprises a work drive with an electric work motor and a travel drive with an electric travel motor and vehicle wheels, wherein the working machine experiences a speed deceleration from the outside that may result in a braking force acting on the vehicle wheels lower than a driving force acting on the vehicle wheels due to a moment of inertia of the travel motor. The method includes supplying the travel motor with a power in a direction opposite to an operating direction of the travel motor in order to reduce a rotational speed of the travel motor, if it is detected in advance using a situation detection that the braking force acting on the vehicle wheels as a result of the speed deceleration is lower than the driving force acting on the vehicle wheels.

Systems and methods can position or provide a mobile machine in a queue of a plurality of the mobile machines such that an estimated future amount of energy of an energy source if the mobile machine is at or above a required amount of energy of the energy source to complete a predetermined task after the mobile machine reaches an end of the queue. Such positioning or providing can include or be moving the mobile machine up or forward in the queue from a condition where the estimated future amount of energy of the energy source is less than the required amount of energy of the energy source to complete the predetermined task after the mobile machine reaches the end of the queue.

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 system and method of capacitance management in an agricultural vehicle and connected implement, wherein the vehicle and implement have a plurality of electric drives connected to a common connection and connectable to a direct current supply, and each electric drive has an associated Y capacitor between each direct current supply connection and the common connection, wherein the method includes receiving and summing capacitance values for each of the electric drives and comparing with a stored threshold value. If the threshold value is exceeded, a sequence of selective disconnections of individual electric drives is performed until the sum of the received capacitance values is less than or equal to the threshold value. The method may be performed manually, or automatically based on a sequence defined in a priority list until the sum of the received capacitance values is less than or equal to the threshold value.

A system for supplying electric power to components of an agricultural harvester may include a power storage device and a first agricultural harvester component. The system may also include a first bus electrically coupled to the power storage device and configured to supply electric power at a first voltage to the first agricultural harvester component. Furthermore, the system may include a second agricultural harvester component and a second bus configured to supply the electric power at a second voltage to second agricultural harvester component, the second voltage being less than the first voltage. Additionally, the system may include a converter electrically coupled between the first and the second bus, with the converter configured to reduce the first voltage supplied through the first bus to allow electric power to be supplied to the second agricultural harvester component at the second voltage via the second bus.

A power feed system includes a power feed mat. The power feed mat includes a plurality of power transmission coils. The power feed mat is configured to feed power to at least one movable body on the power feed mat by using at least one of the plurality of power transmission coils. The power feed system further includes a computer. When the computer restricts power feed to at least one movable body among a plurality of movable bodies on the power feed mat, the computer selects the at least one movable body power feed to which is to be restricted, based on a priority of each of the plurality of movable bodies.

A ground utility robot and implement attachment apparatus having a ground utility robot, at least one implement, at least one solar panel, at least one battery that is chargeable by the at least one solar panel, a power take-off system that is connected to the ground utility robot and to the at least one implement; where the battery powers said ground utility robot and the implement; a safety system that has a computer, a safety program that utilizes a processing logic on the computer, where the safety program initiates precautionary measures that are carried out by the ground utility robot and the power take-off system if an object comes within a predefined distance from the ground utility robot and implement attachment apparatus.