Article | REF: TRP3062 V1

Rail braking systems - Effort and energy dissipation

Author: Florent BRISOU

Publication date: February 10, 2016, Review date: February 2, 2022

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1. Different braking processes

The braking of a rail vehicle can be ensured :

  • or by a dynamic brake – the braking effort is generated by using the train's inertia. This category includes :

    • electrodynamic braking: the traction motors are electric, powered either from a power supply external to the convoy, or from a generator driven by a diesel engine,

    • the hydrodynamic brake: the traction motor is diesel-powered, and power is transmitted hydraulically to the axles,

    • Eddy-current brakes on discs or rails;

  • or by a friction brake – braking force is produced by friction between one material and another. This category includes :

    • shoe brake,

    • disc brake,

    • ...
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Different braking processes