DE2503703
A motor-driven rail-vehicle with a drive system including an electric motor and drive wheels is provided with an oscillation sensing member which senses oscillations within a pre-determined frequency range of an electrical quantity of the drive system, such as the armature current or voltage, and fo...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A motor-driven rail-vehicle with a drive system including an electric motor and drive wheels is provided with an oscillation sensing member which senses oscillations within a pre-determined frequency range of an electrical quantity of the drive system, such as the armature current or voltage, and forms a signal representing such oscillations. This signal is compared with a signal corresponding to a predetermined threshold value, and the tractive force of the motor is reduced in response to an increase of the oscillation amplitude above such threshold value. |
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