Working machine

A working machine comprising:

• 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 hydraulic driver to receive power from the engine and the motor/generator;
• an operation actuator for operation of the hydraulic driver;
• and
• a controller to set, according to a change in rotation speed of the engine after operation of the operation actuator, a point in time at which the assisting action is performed.

A working machine comprising:

• 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 pair of traveling devices on the machine body;
• a travel operation actuator for operation of the pair of traveling devices;
• 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 travel operation actuator.