Abstract: A working machine includes a machine body, an engine on the machine body, a motor/generator to perform an assisting action in which the motor/generator functions as a motor to assist the engine in driving and an electricity generating action in which the motor/generator functions as a generator to generate electricity using power from the engine, a working device to function using power from the engine and the motor/generator, a work operation actuator for operation of the working device, an action controller to cause the assisting action to be performed when a rotation speed of the engine is equal to or less than a first rotation speed and cause the electricity generating action to be performed when the rotation speed of the engine is equal to or greater than a second rotation speed greater than the first rotation speed, and a speed controller to change the first rotation speed or the second rotation speed according to an operation amount of the work operation actuator.

Abstract: An electric working machine includes battery packs, an actuated device to be actuated by electricity supplied from the battery packs, and a controller to control discharging of the battery packs based on remaining charge levels of the battery packs. The controller is configured/programmed to select one of the battery packs as a discharging battery pack, and perform a limiting process to limit electricity supplied from the discharging battery pack to the actuated device when the remaining charge level of the discharging battery pack is less than a limit threshold, and cause the limit threshold and/or content of the limiting process to differ between when one or more of the battery packs that are other than the discharging battery pack have a remaining charge level of a second threshold or more and when any of such battery packs do not have a remaining charge level of the second threshold or more.

Abstract: A working machine includes a machine body, an engine on the machine body, a motor/generator to perform an assisting action in which the motor/generator functions as a motor to assist the engine in driving and an electricity generating action in which the motor/generator functions as a generator to generate electricity using power from the engine, a battery to store electricity generated by the motor/generator, an operation actuator to perform an operation of the machine body, a starting action determiner to determine, upon operation of the operation actuator, whether the operation corresponds to a starting action for the machine body, a first setter to set, if the starting action determiner determines that the operation of the operation actuator corresponds to the starting action, a torque of the motor/generator for the assisting action or the electricity generating action to a first torque, and a second setter to set, if the starting action determiner determines that the operation of the operation actuator d

Abstract: A power supply includes a battery; an inverter that controls an output voltage of the battery; an air-cooler that cools the battery and the inverter with cooling air; and a case that houses the battery, the inverter, and the air-cooler.

Abstract: A working machine includes a machine body, an engine on the machine body, a motor/generator to perform an assisting action in which the motor/generator functions as a motor to assist the engine in driving and an electricity generating action in which the motor/generator functions as a generator to generate electricity using power from the engine, a working device to function using power from the engine and the motor/generator, a work operation actuator for operation of the working device, an action controller to cause the assisting action to be performed when a rotation speed of the engine is equal to or less than a first rotation speed and cause the electricity generating action to be performed when the rotation speed of the engine is equal to or greater than a second rotation speed greater than the first rotation speed, and a speed controller to change the first rotation speed or the second rotation speed according to an operation amount of the work operation actuator.

Abstract: A working machine includes a machine body, an engine on the machine body, a motor/generator to perform an assisting action in which the motor/generator functions as a motor to assist the engine in driving and an electricity generating action in which the motor/generator functions as a generator to generate electricity using power from the engine, a battery to store electricity generated by the motor/generator, an operation actuator to perform an operation of the machine body, a starting action determiner to determine, upon operation of the operation actuator, whether the operation corresponds to a starting action for the machine body, a first setter to set, if the starting action determiner determines that the operation of the operation actuator corresponds to the starting action, a torque of the motor/generator for the assisting action or the electricity generating action to a first torque, and a second setter to set, if the starting action determiner determines that the operation of the operation actuator d

Abstract: The working machine includes a machine body, an engine provided on the machine body, a motor generator to be operated as a motor to assist driving of the engine in an assisting operation and to be operated as a generator by power of the engine to generate electricity in a generating operation, a battery to store the electricity generated by the motor generator, an acceleration sensor to measure acceleration of the machine body, and a controller to selectively set either one of the assisting operation and the generating operation based on the acceleration of the machine body measured by the acceleration sensor.