FIELD: transport.
SUBSTANCE: working machine designed for at least two functions including attachment displacement and (or) steering. The machine includes at least two hydraulic circuits, one hydraulic circuit for each of mentioned functions. Each hydraulic circuit includes at least one hydraulic pump to control operation of corresponding attachment or steering functions; separate first electric machine with possibility to transfer driving force and connected with each of mentioned hydraulic pumps for separate power supply to the pump and power takeoff form the pump; transmission for working machine displacement by means of driving wheels. The transmission includes at least one second electric machine mechanically connected with the mentioned first electric machines to exchange power between hydraulic circuits and transmission.
EFFECT: lower fuel consumption and higher efficiency.
22 cl, 9 dwg
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