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US 10,207,720 B2Granted
Device for driving at least one output shaft of a rail vehicle and method for operating such a device
AssigneeZF Friedrichshafen AG
InventorsMartin Fellmann, Bernd Somschor, Kazutaka Iuchi, Marton Kurucz
Life of this patent
Estimating the term…
Abstract
A device (1) to drive at least an output shaft (3) of a rail vehicle with a drive engine (4). The at least one output shaft (3) can be brought into an operational connection with a wheel (2), and a transmission assembly (6) is positioned on the drive side of the at least one output shaft (3). At least two gear ratios can be presented in the area of the transmission assembly (6). In addition, a method is described for operating such a device (1).
Claims5
A method of operating a rail vehicle with at least first and second devices,
- the first device having a drive shaft which is driven by at least one electric machine, at least one output shaft, at least one wheel, and at least one transmission assembly with at least one shift element, the at least one transmission assembly of the first device is operationally connected to and positioned at a drive side of the at least one output shaft of the first device, the at least one output shaft of the first device is at least operationally connected with the at least one wheel of the first device, and the at least one shift element of the first device is operable such that by way of the at least one transmission assembly of the first device, at least two gear ratios are implementable between the drive shaft of the first device and the at least one output shaft of the first device, the at least one transmission assembly of the first device is a planetary transmission, and the at least one electric machine of the first device, the at least one transmission assembly of the first device, and the at least one wheel of the first device are positioned coaxially relative to one another,
- the second device having a drive shaft which is driven by at least one electric machine, at least one output shaft, at least one wheel, and at least one transmission assembly with at least shift element, the at least one transmission assembly of the second device is operationally connected to and positioned at a drive side of the at least one output shaft of the second device, the at least one output shaft of the second device is at least operationally connected with the at least one wheel of the second device, and the at least one shift element of the second device is operable such that by way of the at least one transmission assembly of the second device, at least two gear ratios are implementable between the drive shaft of the second device and the at least one output shaft of the second device, the at least one transmission assembly of the second device is a planetary transmission, and the at least one electric machine of the second device, the at least one transmission assembly of the second device, and the at least one wheel of the second device are positioned coaxially relative to one another,
- the method comprising:
- actuating the at least one transmission assembly of the first device and the at least one transmission assembly of the second device such that a gear ratio change of the at least one transmission assembly of the first device is at least partially executed with a timely offset in reference to a gear ratio change of the another at least one transmission assembly of the second device.
1 more element
Dependencies are inferred from the claim text.