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US 11,628,727 B2Granted
Hybrid vehicular work machine
AssigneeHusqvarna AB
InventorTommy Olsson
Life of this patent
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AssigneeHusqvarna AB
InventorTommy Olsson
Estimating the term…
The present disclosure relates to a vehicular work machine (10) comprising a first electric motor arrangement (31) comprising one or more electric motors (21, 21′), and a second electric motor arrangement (32) comprising one or more electric motors (22, 22′) separate from said one or more electric motors (21, 21′) of the first electric motor arrangement (31). The vehicular work machine (10) further comprises a power connection (8) adapted to be connected to an external electric power source (17), an energy storage arrangement (23) and a hydraulic pump assembly (24) that is adapted to power hydraulic devices (5, 18, 19, 20) comprised in the vehicular work machine (10). At least one electric motor (21, 21′; 22, 22′) in each electric motor arrangement (31, 32) is adapted to propel the hydraulic pump assembly (24). Said one or more electric motors (21, 21′) in the first electric motor arrangement (31) are arranged to be electrically powered from the external power supply (17), and said one or more electric motors (22, 22) in the second electric motor arrangement (32) are arranged to be electrically powered from the energy storage arrangement (23).
A vehicular work machine comprising a first electric motor arrangement comprising one or more electric motors, and a second electric motor arrangement comprising one or more other electric motors, wherein the vehicular work machine further comprises a power connection adapted to be connected to an external electric power source, an energy storage arrangement and a hydraulic pump assembly that is adapted to power hydraulic devices comprised in the vehicular work machine, wherein at least one electric motor in each of the first and second electric motor arrangements is adapted to propel the hydraulic pump assembly, the one or more electric motors in the first electric motor arrangement and the one or more electric motors in the second electric motor arrangement are adapted to be mechanically connectable or mechanically connected to each other, and wherein said one or more electric motors in the first electric motor arrangement are arranged to be electrically powered from the external power supply, and said one or more other electric motors in the second electric motor arrangement are arranged to be electrically powered from the energy storage arrangement.
The vehicular work machine according to any one of the previous claims, wherein the vehicular work machine comprises a single-phase battery charger that is connectable to the external electric power source via a charger contactor.
A method for a vehicular work machine, having an energy storage arrangement, a first electric motor arrangement using one or more electric motors, and a second electric motor arrangement using one or more other electric motors, the one or more electric motors in the first electric motor arrangement and the one or more electric motors in the second electric motor arrangement are adapted to be mechanically connectable or mechanically connected to each other, wherein the method comprises:
A vehicular work machine comprising a first electric motor arrangement comprising one or more electric motors, and a second electric motor arrangement comprising one or more other electric motors, wherein the vehicular work machine further comprises a power connection adapted to be connected to an external electric power source, an energy storage arrangement and a hydraulic pump assembly that is adapted to power hydraulic devices comprised in the vehicular work machine, wherein at least one electric motor in each of the first and second electric motor arrangements is adapted to propel the hydraulic pump assembly, and wherein said one or more electric motors in the first electric motor arrangement are arranged to be electrically powered from the external power supply, and said one or more other electric motors in the second electric motor arrangement are arranged to be electrically powered from the energy storage arrangement;
Dependencies are inferred from the claim text.