US 4,641,586 AGranted

Magnetic suspension railway

AssigneeThyssen Industrie AG

InventorsLuitpold Miller, Hans-Georg Raschbichler

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Abstract

A magnetic suspension for a railway vehicle with electromagnetic carrying, guiding and driving gear, wherein the forces of the exciter and transverse flux magnets support, guide, drive and brake together with an active motor section by regulating the gap distance from a track-side reaction rail measured by gap, measured by gap sensors, and wherein the vehicle includes hover frames and the magnets are resiliently mounted to the hover frames in such a way that both supporting and guiding magnets as well as the carrying magnets of the two longsides of the vehicles are separated from each other as to action and the hover frames are coupled to the vehicle superstructure through spring means is disclosed. Each magnet includes at least four coils and the transvers flux magnets have adjacent coils with coil lengths selected so that within the magnet coil peripheries of the adjacent coils, lying side by side, do not coincide. The coils of the magnets are divided into two identical groups and the coils of each group are distributed over the total length of the magnets so as to supply the torques required for stabilization of the pitch movement of the vehicle. The coils of each group are operable responsive to an autonomous gap control loop. The supporting and guiding magnets have glide skids for limiting the free motion play in the vertical and horizontal directions relative to the track to a predetermined gap deviation to be expected in service.

In a suspension system for a magnetic suspension railway vehicle that is to travel in a longitudinal direction on a track having supporting rails, the suspension system including a plurality of hover frames distributed in the longitudinal direction and disposed on both sides of the vehicle, spring means connected to the hover frame for supporting the vehicle and for coupling the vehicle to the hover frames, a supporting magnet resiliently mounted to each hover frame for interacting with one of the supporting rails to support, guide, drive and brake and vehicle on the rail, a transverse magnet resiliently mounted to each hover frame for interacting with one of the supporting rails to laterally guide the vehicle with respect to the rail, gap control loop means connected to the supporting magnet and the transverse magnet of each hover frame for regulating a gap distance between each supporting and transverse magnet and the supporting rail interacting therewith, the gap control loop means having a plurality of autonomous gap control loops, the improvement comprising:

(a) each of said supporting and transverse magnets including at least four coils;
(b) each transverse magnet having adjacent coils with coil lengths selected so that, within each transverse magnet, coil peripheries of adjacent coils lie side-by-side and do not coincide;
(c) said coils of said supporting magnet and of said magnet being divided into two identical groups, the coils of each group being distributed over the total length of its respective magnet, each group being arranged so as to apply torques to its respective magnet with respect to the rails which is required for stabilization of a pitch movement for its respective magnet;
(d) the coils of each group being operatively connected to a separate autonomous gap control loop of the gap control loop means;
and
(e) glide means connected to each of the supporting magnets and to each of the transverse magnets for engagement with one of the supporting rails to limit a free relative movement between the supporting and transverse magnets and the supporting rail.

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Abstract

Claims5