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US 12,540,632 B2Granted
Hydraulic system for a vehicle and a computer-implemented method
AssigneeVolvo Construction Equipment AB
InventorAlessandro Carnevali
Life of this patent
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Abstract
A hydraulic system for a vehicle is provided. The hydraulic system includes a first electric motor, a second electric motor, a gearbox arranged to be driven by the first and second electric motors, a hydraulic pump arranged to be driven by the gearbox, and a control arrangement configured to individually control the first and second electric motors to either run at a reference speed or to deliver a reference torque and during operation control at least one of the first and second electric motors to deliver a reference torque.
Claims18
A hydraulic system for a vehicle, the hydraulic system comprising
- a first electric motor,
- a second electric motor,
- a gearbox arranged to be driven by the first and second electric motors,
- a hydraulic pump arranged to be driven by the gearbox, and
- a control arrangement configured to:
- individually control the first and second electric motors to either run at a reference speed or to deliver a reference torque
- during operation control at least one of the first and second electric motors to deliver a reference torque, and
- control the first and second motors in response to a hydraulic supply request and is configured, based on said hydraulic supply request, to selectively
- control the first motor to run at a reference speed and the second motor to deliver a reference torque, or
- control the first motor to deliver a reference torque and the second motor to deliver a reference torque.
7 more elements
Dependencies are inferred from the claim text.