Mobile working machine

A method for reducing a peak power taken out from an energy source of a mobile working machine, the mobile working machine comprising:

• a storage circuit for storing electrical energy,
• a first electronic power converter stage connected between the storage circuit and the energy source of the mobile working machine,
• an electrical machine for driving one or more actuators of the mobile working machine,
• a second electronic power converter stage connected between the storage circuit and the electrical machine, and
• a control system for controlling the first electronic power converter stage to respond to fluctuation of power taken by the second electronic power converter stage from the storage circuit, the control system providing a control signal path from the storage circuit to the first electronic power converter stage,
• wherein the method comprises changing at least one signal processing property of the control signal path on the basis of the electrical energy stored by the storage circuit so that a control of the electrical energy is slower to respond to changes of the power taken by the second electronic power converter stage when the electrical energy has a first value that is between second and third values than when the electrical energy has either one of the second and third values.

A non-transitory computer readable medium encoded with a computer program for reducing a peak power taken out from an energy source of a mobile working machine, the mobile working machine comprising:

• a storage circuit for storing electrical energy,
• a first electronic power converter stage connected between the storage circuit and the energy source of the mobile working machine,
• an electrical machine for driving one or more actuators of the mobile working machine,
• a second electronic power converter stage connected between the storage circuit and the electrical machine, and
• a control system for controlling the first electronic power converter stage to respond to fluctuation of power taken by the second electronic power converter stage from the storage circuit, the control system providing a control signal path from the storage circuit to the first electronic power converter stage,
• characterized in that the computer program comprises computer executable instructions for controlling a programmable processor to change at least one signal processing property of the control signal path on the basis of the electrical energy stored by the storage circuit so that a control of the electrical energy is slower to respond to changes of the power taken by the second electronic power converter stage when the electrical energy has a first value that is between second and third values than when the electrical energy has either one of the second and third values.