TRACTION CONTROL FOR ROLLING STOCK

PROBLEM TO BE SOLVED: To provide a traction control method minimizing a slip between a rail and a wheel set even at the start of a vehicle while minimizing the mechanical load of the whole drive train. SOLUTION: In the traction control method for a rolling stock, a torque target value Msoll for a to...

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Bibliographische Detailangaben
Hauptverfasser:	MENTH STEFAN, EHRLER URS
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LOCOMOTIVES MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MOTOR RAILCARS OTHER AUXILIARY EQUIPMENT FOR RAILWAYS PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES RAILWAYS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a traction control method minimizing a slip between a rail and a wheel set even at the start of a vehicle while minimizing the mechanical load of the whole drive train. SOLUTION: In the traction control method for a rolling stock, a torque target value Msoll for a torque control unit 3 is set by a wheel slip control unit 1, and when the difference Δn of the rotating speed of a driving motor of a wheel set obtained by instantaneous rotating speed n and computed reference rotating speed, reaches a settable threshold value, the torque target value is lowered by the wheel slip control unit, and the torque control unit 3 sets stator frequency fs for at least one driving motor of the wheel set, formed as a non-synchronizer. When the rotating speed difference is smaller than a rotating speed difference threshold value and friction connecting force between the wheel set and a rail reaches the maximum value, stator frequency is limited to a limiting value fSG depending on the stator frequency.