Method of operating a bogie using actuators for wheel steering
AssigneeKrupp Verkehrstechnik GmbH
InventorsErnst Pees, Hans-Dieter Schaller
Life of this patent
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Abstract
On undercarriages for railway vehicles with at least four wheelsets which are combined into trucks, the invention teaches that force-controlled or displacement-controlled actuators are located on the end wheelsets of the trucks. These actuators thereby act on the wheelset bearings, and in terms of their effect, they are connected in parallel, in the case of the force-controlled actuators, and in series, in the case of the displacement-controlled actuator with a wheelset restraint. This system makes possible a controlled rotation of the wheelset in relation to the truck frame.
Claims6
Method of operating a railroad car, said method comprising the steps of:
- providing a railroad car, the railroad car having a frame and defining a longitudinal direction;
- providing a first bogie and a second bogie, each of the first bogie and the second bogie comprising a frame element, each of the first bogie and the second bogie comprising a first wheelset and a second wheelset;
- providing means for pivotally connecting the frame element of the first bogie to the frame of the railroad car and means for pivotally connecting the frame element of the second bogie to the railroad car;
- pivotally connecting the frame element of the first bogie to the railroad car and pivotally connecting the frame element of the second bogie to the railroad car;
- providing first means for sensing an angular position of the frame element of the first bogie with respect to the frame of the railroad car;
- providing second means for sensing an angular position of the frame element of the second bogie with respect to the frame of the railroad car;
- providing means for determining a revised angular position of at least a portion of at least one of the first bogie and the second bogie with respect to the frame of the railroad car based on:
- the angular position of the frame element of the first bogie with respect to the frame of the railroad car;
- and
- the angular position of the frame element of the second
- bogie with respect to the frame of the railroad car;
- providing means for adjusting the angular position of at least a portion of at least one of the first bogie and the second bogie with respect to the frame of the railroad car to adjust the at least a portion of at least one of the first bogie and the second bogie to the revised angular position determined for each of the first bogie and the second bogie;
- sensing an angular position of the frame element of the first bogie with respect to the frame of the railroad car with the first sensing means;
- sensing an angular position of the frame element of the second bogie with respect to the frame of the railroad car with the second sensing means;
- determining a revised angular position of at least a portion of at least one of the first bogie and the second bogie with respect to the frame of the railroad car based on:
- the sensed angular position of the frame element of the first bogie with respect to the frame of the railroad car;
- and
- the sensed angular position of the frame element of the second bogie with respect to the frame of the railroad car;
- and
- adjusting the angular position of at least a portion of at least one of the first bogie and the second bogie with respect to the frame of the railroad car to adjust the at least a portion of at least one of the first bogie and the second bogie to the revised angular position determined for each of the first bogie and the second bogie.
Dependencies are inferred from the claim text.