Telma

Electromagnetic Retarders

Faster speeds. Heavier vehicles. Intense demands in a fast-paced, stop and go world. Let's face it, traditional friction brakes - whether drum or disc, air or hydraulic - are finding it increasingly difficult to meet the real demands of today's heavy vehicles. While other transportation and safety capabilities have steadily progressed over time, this metal-on-metal technology has remained relatively unchanged. Well, at Telma, we think it's time for a major revolution. And though many are describing our innovation as "the future," we call it simply "frictionless braking." As the world's leading manufacturer of electromagnetic frictionless braking systems, Telma is literally revolutionizing vehicle control. The transportation market needs breakthrough solutions to friction braking problems, and we're providing them. From the principles of human safety, to the efficiency and cost savings of cutting-edge technology, the reasons for advancing to the science of frictionless brakes have never been more compelling.

 

Operation

 

Rotating parts called rotors are attached to the driveshaft. Separated by a narrow air gap, the stator is connected to the vehicle chassis. When electricity flows through the stator coils, electromagnetic fields with alternate polarities are created. As the rotors pass through these fields, eddy currents are generated which slow the rotors and thus slow the driveshaft. Any heat generated during braking is self-dissipated through the rotor vanes.