초록 ▼

A method and a magnetic levitation vehicle operating with this method are described. For the control of support gaps (10a, 10b) that are formed during operation of the magnetic levitation vehicle (1) between a track (2, 3, 4) and a number of carrying magnets (6a, 6b) fastened to said magnetic levita

A method and a magnetic levitation vehicle operating with this method are described. For the control of support gaps (10a, 10b) that are formed during operation of the magnetic levitation vehicle (1) between a track (2, 3, 4) and a number of carrying magnets (6a, 6b) fastened to said magnetic levitation vehicle (1) and provided with windings (16a, 16b), wherein at least two carrying magnets (6a, 6b) in adjacent positions act upon a suspension frame (8) of said magnetic levitation vehicle (1), the electrical currents flowing through the windings (16a, 16b) are so controlled that the support gaps (10a, 10b) between these two carrying magnets (6a, 6b) and the track (2, 3, 4) adopt pre-determined nominal values (na, nb). In accordance with the invention and in case that the currents through the windings (16a, 16b) of the adjacent carrying magnets (6a) are different under normal conditions, the nominal values (na, nb) for the support gaps (10a, 10b) are altered such that the current through the windings (16a or 16b) of a carrying magnet (6a, 6b) with the lower electric current is increased and/or the electric current through the winding (16b and/or 16a) of a carrying magnet (6b, 6a) with the larger electric current is reduced.

대표청구항 ▼

The invention claimed is: 1. A method applied in a magnetic levitation vehicle (1) to control support gaps (10a, 10b) that are formed during operation of the magnetic levitation vehicle (1) between a track (2, 3, 4) and a number of carrying magnets (6a, 6b) fastened to said magnetic levitation vehi

The invention claimed is: 1. A method applied in a magnetic levitation vehicle (1) to control support gaps (10a, 10b) that are formed during operation of the magnetic levitation vehicle (1) between a track (2, 3, 4) and a number of carrying magnets (6a, 6b) fastened to said magnetic levitation vehicle (1) and provided with windings (16a, 16b), wherein at least two carrying magnets (6a, 6b) in adjacent positions act upon a suspension frame (8) of said magnetic levitation vehicle (1) and wherein the electrical currents flowing through the windings (16a, 16b) are so controlled that the support gaps (10a, 10b) between these two carrying magnets (6a, 6b) in said adjacent positions and the track (2, 3, 4) adopt pre-determined nominal values (na, nb) of equal size, characterized in that in case that for obtaining said predetermined values (na, nb) the currents through the windings (16a and/or 16b) of the adjacent carrying magnets (6a and/or 6b) must be different under normal conditions, the nominal values (na, nb) for the support gaps (10a, 10b) are altered such that the current through the windings (16a or 16b) of a carrying magnet (6a, 6b) with the lower electric current is increased and/or the electric current through the winding (16b and/or 16a) of a carrying magnet (6b and/or 6a) with the larger electric current is reduced. 2. A method according to claim 1, characterized in that if differences in electric current in the two windings (16a, 16b) occur, it is at first tried to make the electric currents in both windings (16a, 16b) equal to each other by increasing the electric current flowing through the winding with the lower electric current (16a and/or 16b) at most until a minimal gap (uG) is reached. 3. A method according to claim 2, characterized in that if the two electric currents cannot be made equal by increasing the electric current in the winding carrying the lower electric current (16a and/or 16b), the electric current flowing through the winding carrying the larger electric current (16b and/or 16a) is reduced at most until a maximal gap (oG) is reached. 4. A magnetic levitation vehicle having control circuits (17a, 17b) for controlling support gaps (10a, 10b) formed during its operation between a track (2, 3, 4) and a number of carrying magnets (6a, 6b) fastened to said vehicle (1) and provided with windings (16a, 16b), wherein the control circuits (17a, 17b) have means (19a to 22a and/or 19b to 22b) for controlling electrical currents flowing through said windings (16a, 16b) in such a way that the support gaps (10a, 10b) adopt pre-determined nominal values (na, nb), characterized in that means (24) for correcting respective nominal values (na, nb) is dependence on the electrical currents flowing through said windings (16a, 16b) are assigned to the control circuits (17a, 17b) of at least two adjacent carrying magnets (6a, 6b). 5. A magnetic levitation vehicle according to claim 4, characterized in that the control circuits (17a, 17b) have actuator elements (22a, 22b) with outputs connected to the windings (16a, 16b) and comparative circuits (19a, 19b) for comparing the nominal values and actual values (na, nb and sa, sb) of said support gaps (10a, 10b), wherein said means (24) contain a corrective circuit which on the input side is connected to the outputs of the actuator elements (22a, 22b) and on the output side to the comparative circuits (19a, 19b). 6. A magnetic levitation vehicle according to claim 4 or 5, characterized in that the corrective circuit acts in the sense of an increase (decrease) in electric current if the electric current flowing through the winding (16a, 16b) of an associated carrying magnet (6a, 6b) becomes lower (larger) than the electric current flowing through the winding (16band/or 16a) of the other carrying magnet (6b and/or 6a). 7. A magnetic levitation vehicle according to claim 4 or 5, characterized in that upper and lower limit values (oG, uG) are assigned to said support gaps (10a, 10b). 8. A method applied in a magnetic levitation vehicle (1) to control support gaps (10a, 10b) that are formed during operation of the magnetic levitation vehicle (1) between a track (2, 3, 4) and a number of carrying magnets (6a, 6b) fastened to said magnetic levitation vehicle (1) and provided with windings (16a, 16b), wherein at least two carrying magnets (6a, 6b) in adjacent positions act upon a suspension frame (8) of said magnetic levitation vehicle (1) and wherein the electrical currents flowing through the windings (16a, 16b) are so controlled that the support gaps (10a, 10b) between these two carrying magnets (6a, 6b) and the track (2, 3, 4) adopt pre-determined nominal values (na, nb), characterized in that in case that the pre-determined nominal values (na, nb) are obtained under normal conditions by different currents through the windings (16a and/or 16b) of the adjacent carrying magnets (6a and/or 6b), the nominal values (na, nb) for the support gaps (10a, 10b) are altered such that the current through the windings (16a or 16b) of a carrying magnet (6a, 6b) with the lower electric current is increased and/or the electric current through the winding (16b and/or 16a) of a carrying magnet (6band/or 6a) with the larger electric current is reduced.