A retarder is a device used to augment or replace some of the functions of primary friction-based braking systems, usually on heavy vehicles. Retarders serve to slow vehicles, or maintain a steady speed while traveling down a hill, and help prevent the vehicle from “running away” by accelerating down the hill.
source/image(PrtSc): Stoll von Gáti
This animation for Voith illustrates how the VR115 CT retarder works. The technical details are visualized in a particularly impressive way, showing not only the relationships in the vehicle, but also the individual components of the retarder. Watch the video from Stoll von Gáti for more info:
The Voith 115 CT is a step-up gear retarder with a high braking torque. It has a self-contained oil supply system and is integrated into the vehicle’s braking management system. In conjunction with the service brakes, it provides optimal braking action.
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At the same time, the retarder increases riding comfort, for example via the v-constant function that keeps speed constant downhill, in the same way as downhill cruise control, without the additional use of the service brakes.
