A rail vehicle and a method for operation of a rail vehicle
AssigneePlasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
InventorsChristian WEITERSBERGER, Christoph KAISER
Life of this patent
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Abstract
A rail vehicle having a vehicle frame supported on on-track undercarriages and a hydraulic drive system powered by a motor. The drive system comprises a hydrodynamic drive associated with a first on-track undercarriage as well as a hydrostatic drive associated with a second on-track undercarriage. With the latter is associated a drive pump connected to a drive motor. The motor is designed for a higher power output than is necessary for the operation of the hydrodynamic drive. A pump distribution gear is switched between the motor and the hydrodynamic drive, via which the drive pump of the hydrostatic drive can be connected. This takes place in dependence on a friction value μ between the rail and wheel.
Claims4
A rail vehicle (1) having a vehicle frame (4) supported on on-track undercarriages (2, 3) and a hydraulic drive system (6) powered by a motor (5), the drive system (6) comprising a hydrodynamic drive (7) associated with a first on-track undercarriage (2) as well as a hydrostatic drive (8), associated with a second on-track undercarriage (3), with which is associated a drive pump (10) connected to a drive motor (9), wherein the motor (5) is designed for higher power output than necessary for the operation of the hydrodynamic drive (7), and wherein a pump distribution gear (11) is switched between the motor (5) and the hydrodynamic drive (7), via which the drive pump (10) of the hydrostatic drive (8) can be connected.
Dependencies are inferred from the claim text.