Driveline arrangement
AssigneeVovlo Construction Equipment AB
InventorsPer-Anders Sköldberg, Per Mattsson
Life of this patent
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Abstract
The disclosed subject matter relates to a driveline arrangement including a first driveline, a second driveline, and a control unit connected to the first and second drivelines, the control unit comprising control circuitry configured to control the second driveline to assume a disengaged state in which the second driveline is disconnected from propelling a second pair of wheels when a speed of the working machine exceeds a predetermined threshold speed limit.
Claims15
A driveline arrangement for propelling a working machine, the driveline arrangement comprising:
- a first driveline comprising a first electric machine and a first transmission arrangement, the first driveline being configured to propel a first pair of wheels at a speed range between zero speed and a maximum speed limit of the working machine;
- a second driveline comprising a second electric machine and a second transmission arrangement, the second driveline being configured to propel a second pair of wheels at a speed range between zero speed and a predetermined threshold speed limit of the working machine, wherein the predetermined threshold speed limit is lower than the maximum speed limit;
- and
- a control unit connected to the first and second drivelines, the control unit comprising control circuitry configured to control the second driveline to assume a disengaged state in which the second driveline is disconnected from propelling the second pair of wheels when a speed of the working machine exceeds the predetermined threshold speed limit.
A method of controlling a driveline arrangement of a working machine, the driveline arrangement comprising:
- a first driveline comprising a first electric machine and a first transmission arrangement, the first driveline being configured to propel a first pair of wheels at a speed range between zero speed and a maximum speed limit of the working machine;
- and
- a second driveline comprising a second electric machine and a second transmission arrangement, the second driveline being configured to propel a second pair of wheels at a speed range between zero speed and a predetermined threshold speed limit of the working machine, wherein the predetermined threshold speed limit is lower than the maximum speed limit;
- wherein the method comprises the steps of:
- determining a speed of the working machine;
- comparing the speed of the working machine with the predetermined threshold speed limit, and
- disconnecting the second driveline from propelling the second pair of wheels when the speed of the working machine exceeds the predetermined threshold speed limit.
Dependencies are inferred from the claim text.